WO2015090163A1

WO2015090163A1 - Method and device for controlling output volume of audio in playing device

Info

Publication number: WO2015090163A1
Application number: PCT/CN2014/093760
Authority: WO
Inventors: 谢剑; 戴俊; 陈玉祯; 张悦
Original assignee: 北京百度网讯科技有限公司
Priority date: 2013-12-19
Filing date: 2014-12-12
Publication date: 2015-06-25
Also published as: CN103761063B; CN103761063A

Abstract

Provided are a method and device for controlling output volume of audio in a playing device. The method comprises the following steps: acquiring user comfortable volume of a current user; acquiring playing environment information about a playing device; and, based on the playing environment information and the user comfortable volume, determining output volume of audio to be played, so as to play the audio to be played. By means of acquiring the user comfortable volume selected by the user, the output volume of the audio to be played is determined based on the user comfortable volume, so that the volume of audio listened to by the user is at a volume that the user feels comfortable. The influences on output volume caused by noises in the current environment and the distance between the user and the playing device can be determined, and the volume of the audio to be played is adjusted correspondingly, so as to ensure that the user can clearly listen to the audio to be played.

Description

Method and device for controlling output volume of audio in a playback device

Technical field

The present invention relates to the field of computer technologies, and in particular, to a method and apparatus for controlling an output volume of audio in a playback device.

Background technique

In the prior art, the playback device does not take into account the different needs of the user for the comfort volume when outputting the audio, and thus cannot play the audio at a volume that the user feels comfortable when the received audio volume is too large or too small. Moreover, according to the method of the prior art, the influence of the noise and the distance between the user and the playback device on the output volume of the audio is not comprehensively considered, so that the output of the audio to be played cannot be determined by combining the noise in the current environment and the distance between the user and the playback device. Volume; on the other hand, in the real-time (such as mobile phone or real-time voice call) and non-real-time (such as WeChat, E-mail, etc.) voice communication in the call center or mobile device communication, the communication voice is not based on the communication party. The volume is intelligently adjusted, so that the user needs to manually adjust the volume according to the volume of the other party, which greatly reduces the quality of the user experience.

Summary of the invention

It is an object of the present invention to provide a method and apparatus for controlling the output volume of audio in a playback device.

According to an aspect of the invention, there is provided a method for controlling an output volume of an audio to be played in a playback device, wherein the method comprises the steps of:

a Get the user's user comfort volume;

b acquiring playback environment information of the playback device;

c determining an output volume of the to-be-played audio based on the playback environment information and the user comfort volume to play the to-be-played audio.

According to an aspect of the invention, there is also provided a volume control device for controlling an output volume of an audio to be played in a playback device, wherein the volume control device comprises:

a first obtaining device, configured to acquire a user user's comfortable volume;

a second acquiring device, configured to acquire playing environment information of the playing device;

And determining means for determining an output volume of the to-be-played audio based on the playing environment information and the user comfort volume to play the to-be-played audio.

Compared with the prior art, the present invention has the following advantages: 1) obtaining the user's comfortable volume selected by the user to determine the output volume of the audio to be played based on the user's comfortable volume, so that the audio volume that the user listens to is comfortable. 2) Combining the environment playing information to determine the output volume of the audio to be played, so it is possible to determine the influence of the noise in the current environment and the distance between the user and the playing device on the output volume, and adjust the volume of the audio to be played accordingly to ensure The user can clearly listen to the audio to be played at a more comfortable volume.

DRAWINGS

Other features, objects, and advantages of the present invention will become more apparent from the Detailed Description of Description

1 is a flow chart showing a method for controlling the output volume of audio in a playback device in accordance with the present invention;

2 is a block diagram showing the structure of a volume control device for controlling the output volume of audio in a playback device in accordance with the present invention.

The same or similar reference numerals in the drawings denote the same or similar components.

detailed description

The invention is further described in detail below with reference to the accompanying drawings.

1 is a flow chart showing a method for controlling the output volume of audio to be played in a playback device in accordance with the present invention. The method according to the invention comprises a step S1, a step S2 and a step S3.

The audio to be played includes audio data that needs to be played in the playback device. Preferably, the to-be-played audio includes but is not limited to any of the following:

1) voice audio when calling a call, for example, the audio of the other party when the mobile phone is talking, and, for example, the audio of the incoming call received by the call center;

2) various types of audio transmitted via the network, such as voice and audio in WeChat;

3) Various types of audio stored in the playback device, such as mp3.

Therein, the method according to the invention is implemented by a volume control device.

Preferably, the volume control device is included in a playback control plug-in. The playback control plug-in can be loaded into various independently operable programs such as various operating systems, software, applications (APPs), etc., to enable the loaded program to perform corresponding processing as described herein for the audio to be played.

More preferably, the playback control plug-in can be constructed by combining an existing plug-in with the volume control device, for example, the volume control device is included in an existing WeChat plug-in to obtain the playback control plug-in or the like.

Preferably, the method according to the invention is implemented by a volume control device included in the playback device. The playback device includes an electronic device capable of automatically performing numerical calculation and/or information processing according to an instruction set or stored in advance, the hardware of which includes but is not limited to a microprocessor, an application specific integrated circuit (ASIC), a programmable gate Arrays (FPGAs), digital processors (DSPs), embedded devices, and more. The playback device includes a network device and/or a user device. The network device includes, but is not limited to, a single network server, a server group composed of multiple network servers, or a cloud computing-based cloud composed of a large number of hosts or network servers, where the cloud computing is distributed computing. A super virtual computer consisting of a group of loosely coupled computers. The user equipment includes, but is not limited to, any electronic product that can interact with a user through a keyboard, a mouse, a remote controller, a touch panel, or a voice control device, such as a personal computer, a tablet computer, a smart phone, or a PDA. , game consoles, or IPTV. The network in which the user equipment and the network device are located includes, but is not limited to, the Internet, a wide area network, a metropolitan area network, a local area network, a VPN network, and the like.

Preferably, the playback device further includes a sound output device such as a speaker or the like.

It should be noted that the user equipment, the network equipment, and the network are only examples. Other existing or future user equipment, network equipment, and networks may be applicable to the present invention, and should also be included in the scope of the present invention. And is included here by reference.

Referring to FIG. 1, in step S1, the volume control device acquires a user of a current user. Comfortable volume.

Wherein, the user comfort volume is used to indicate the volume that the user feels comfortable.

The manner in which the volume control device acquires the user's comfortable volume of the current user includes at least one of the following:

1) Obtain by reading the pre-stored user comfort volume;

2) The volume control device plays example audio, wherein the example audio belongs to an example audio set, the audio set includes a plurality of example audios respectively belonging to different volume sections; then, the volume control device acquires a user to the example An adjustment command of the audio; and selecting a new example audio according to the adjustment instruction of the sample audio by the user. The volume control means repeats the above steps until the user confirms that the volume section of the played example audio is the user comfort volume section; then the volume control means acquires the volume in the comfort volume section selected by the user as the user comfort volume.

Preferably, the volume control means selects audio of a volume section adjacent to the played example audio as new example audio according to the user's adjustment instruction to the example audio.

Preferably, the volume control device collects the audio of the volume segment [x, y] at a predetermined volume interval m to obtain a plurality of example audios, and selects an example from the plurality of instance audios based on the principle of binary search. Audio and play to gradually determine the volume section that the user feels comfortable with. Specifically, the volume control device first plays example audio in which the start value of the volume section in the plurality of example audio corresponds to the intermediate position of [x, y]. Then, the volume control device determines, according to the adjustment instruction of the user, that the search range is [a, x] (if it is too large) or [a+m, y] (if it is too small), and selects a new example audio within the search range and Playback, the starting value of the volume section of the new example audio corresponds to the middle position of the search range. The volume control device repeats the above steps of playing the example audio and selecting a new example audio according to the user's adjustment command according to the user's subsequent adjustment instruction until the user confirms that the volume portion of the played example audio is the user comfort volume segment.

More preferably, the volume control means may determine the starting value s of the volume section of the example audio based on the following operational rule: the determined search range is [a, b], and if ab cannot divide by 2 m, then s = a + m * (ab/2m+1), if ab can divide by 2m, then s=a+m*(ab/2m).

For example, the volume control device collects the audio at a volume interval of 20 decibels (db, decibel) to 80 db at 6 db to obtain 10 sample audios corresponding to the volume segment: [20db, 26db ], [26db, 32db], [32db, 38db], ... [74db, 80db]. Then, the volume control device selects the example audio corresponding to the volume segment [44db, 50db] of the intermediate position to play, and obtains the adjustment instruction of the sample audio to the user, which is "large", and the volume control device selects [20db, 50db ] Select the sample audio of the middle volume section [32db, 38db] in the volume range and play it. Then, the volume control device obtains the user's adjustment instruction for the example audio "small" again, and the volume control device determines that the intermediate volume segment between [38db, 50db] is the volume segment [44db, 50db], and selects Its corresponding example audio is played, and the volume control device obtains the user's adjustment command as "OK", and the volume control means the volume section [44db, 50db] of the example audio as the user comfort volume section. Next, the volume control device acquires a selection operation in which the user further selects "46db" in the volume section, and determines that the user's user comfort volume is 46 db.

It should be noted that the foregoing examples are only for better explaining the technical solutions of the present invention, and are not intended to limit the present invention. Those skilled in the art should understand that any implementation manner of the method for obtaining the user's comfortable volume of the current user is It should be included in the scope of the invention.

Next, in step S2, the volume control device acquires the playback environment information of the playback device.

The playing environment information includes but is not limited to at least one of the following:

1) ambient noise volume;

2) The playback distance, which includes the distance between the playback device and the receiving location. Preferably, the receiving position is a position of a human ear. Preferably, the position of the obstacle in front of the playback device is taken as the receiving position.

The manner in which the volume control device acquires the playing environment information of the playing device includes at least one of the following:

1) The playback environment information includes an ambient noise volume, and the volume control device acquires ambient noise audio by detecting ambient noise to determine an ambient noise volume.

Specifically, the volume control device samples and acquires noise audio corresponding to a playing environment in which the playback device is located, and then the volume control device decodes the noise audio into a predetermined grid. Audio data to determine the ambient noise volume of the noisy audio.

Preferably, the volume control device decodes the noise audio into a Pulse Code Modulation (PCM) format.

Preferably, the volume control means determines the ambient noise volume of the noisy audio based on the audio data decoded into a predetermined format based on the following formula:

Among them, SPL (Noise) represents the ambient noise volume, n represents the amplitude of the noise audio, and A (k) represents the amplitude relative magnitude of the k-th sample of the noise audio.

2) The playback environment information includes a play distance, and the volume control device determines the play distance by detecting the distance between itself and the obstacle. For example, the volume control device acquires the distance of the playback device from the obstacle in front of it by the sensing device in the playback device and uses the distance as the playback distance.

Next, in step S3, the volume control device determines an output volume of the to-be-played audio based on the playback environment information and the user comfort volume to play the to-be-played audio.

The volume control device determines the output volume of the to-be-played audio based on the playback environment information and the user comfort volume, and the manner of playing the to-be-played audio includes but is not limited to any of the following:

1) Determine the output volume of the audio to be played based on the playback environment information and the user comfort volume.

Specifically, the volume control means determines the output volume value of the audio to be played based on the playback environment information and the user comfort volume, and based on predetermined operational rules.

For example, the volume control device determines the output volume value = play distance * user comfort volume / standard distance. Wherein, the standard distance is used to represent the distance most suitable for the user to listen to the audio.

As another example, user A receives audio from user B and user C via WeChat in the handset. The user comfort volume of the user A obtained by the volume control device in the user A mobile phone is 32 db, wherein the output volume=(1+ambient noise volume/user comfort volume*100%)* user comfort volume. When playing the audio from the user B, the volume control device obtains that the environment noise of the environment where the user A is located is very small, about 0 db, and the volume control device determines the output volume = The user comfort volume = 32db, and the audio from the user B is played based on the output volume; then, the audio from the user C is continued to be played. At this time, the volume control device obtains the ambient noise volume of the environment where the user A is located is 8 db, then the audio The control device determines the output volume = (1 + 8db / 32db * 100%) * 32 = 40db, then the volume control device plays the audio from the user C at a volume of 40db. Obviously, according to the manner of the present invention, it is possible to flexibly adjust the output volume of the audio to be played according to the environment playing information of the environment in which the user A is located and the comfort volume preferred by the user A, so that the user A is no matter what In a variety of environments, the audio played can be listened to clearly and comfortably.

2) The volume control device determines an output volume of the to-be-played audio based on the playback environment information, the original volume of the audio to be played, and the user comfort volume to play the to-be-played audio.

The manner in which the volume control device obtains the original volume includes, but is not limited to, any of the following:

i) obtaining audio data of the audio to be played by a software program, and decoding the audio data of the audio to be played into audio data of a predetermined format to determine the original volume of the audio to be played, the process of decoding to determine the original volume and step S2 The process of decoding the ambient noise audio by the middle volume control device is the same or similar, and will not be described here;

Ii) acquiring audio data of the played audio by the same or similar manner as the volume of the ambient noise obtained by the volume control means in the foregoing step S2, and decoding the audio data of the audio to be played into audio data of a predetermined format to determine the audio to be played. The original volume is not described here.

The volume control device determines the output volume of the to-be-played audio based on the playback environment information, the original volume of the to-be-played audio, and the user's comfort volume, to play the to-be-played audio, including but not limited to Any of the following:

i) The volume control device first determines the volume gain corresponding to the ambient noise volume and the original volume based on the ambient noise volume and the original volume of the audio to be played. Then, the volume control means determines the output volume of the audio to be played based on the volume gain and the user comfort volume.

The volume gain is used to indicate a gain required by the to-be-played audio in the presence of ambient noise of different volume segments.

For example, the volume control device obtains that the user's comfort volume is 40 db, the ambient noise volume is 35 db, and the original volume of the audio to be played is 30 db. Then, the volume control device queries in the correspondence between the pre-stored audio volume segment, the noise volume segment, and the volume gain, and obtains a corresponding volume gain of 3 db. Then, the volume control device determines that the output volume of the audio to be played is the sum of the user's comfort volume and volume gain, that is, 43 db. The manner in which the corresponding relationship is obtained is similar to or the same as the manner in which the volume is obtained in the subsequent preferred embodiment.

Ii) The volume control device determines the output volume of the audio to be played based on the ambient noise volume, the user comfort volume, and the playback distance.

The playing environment information includes an ambient noise volume and a playing distance, and the volume control device first determines a volume gain corresponding to the ambient noise volume and the original volume according to the ambient noise volume and the original volume of the audio to be played. Next, the volume control means determines the output volume of the audio to be played based on the volume gain, the playback distance, and the user comfort volume.

Specifically, the volume control means determines a noise volume section corresponding to the ambient noise volume, and an audio volume section corresponding to the original volume of the audio to be played. Then, the volume control means determines the average volume of the sound corresponding to the noise volume section of the ambient noise volume and the audio volume section of the original volume based on the volume correspondence. Next, the volume control device determines the volume gain of the audio to be played based on the original volume and the average comfort volume.

The foregoing volume correspondence relationship is used to indicate a correspondence relationship between an audio volume section, a noise volume section, and an average comfort volume corresponding to the test audio.

The manner in which the volume control device acquires the volume correspondence includes, but is not limited to, any one of the following:

i) reading the pre-stored volume correspondence;

Ii) playing a plurality of test audios, respectively obtaining one or more user comfort volumes corresponding to the respective test audios, and determining an average comfort volume corresponding to each test audio according to one or more user comfort volumes of the respective test audios, and The volume volume section of the candidate audio in the test audio, the noise volume section of the candidate noise in the test audio, and the volume correspondence of the average comfort volume corresponding to the test audio are saved. Its The specific implementation of the mode will be detailed in the subsequent preferred embodiments, and details are not described herein again.

Preferably, the volume control means determines the output volume of the audio to be played based on the volume gain, the play distance, and the user comfort volume based on the following formula.

Among them, SPL (Actual) represents the output volume, SPL (Standard) represents the user comfort volume, L represents the playback distance, L _standard represents the standard distance, and SPL (Noise_gain) represents the volume gain.

Wherein, the standard distance is a preset sound output distance, and preferably, the standard distance may be determined according to user usage habits. For example, the average value of the distance between the ear and the speaker of the mobile phone when the user history uses the mobile phone is taken as the standard distance; for example, the distance value input by the user is taken as the standard distance or the like.

According to the first example of the present invention, the volume correspondence stored in the mobile phone of the user D is as shown in Table 1 below.

Table 1

When the user D answers the call audio of the customer service A from the call center through the mobile phone, the volume control device in the mobile phone determines that the current ambient noise volume is 43 db, and the original volume of the call audio from the customer service A is light, which is 37 db. The volume control device determines, according to the volume correspondence relationship shown in Table 1 above, that the noise volume segment corresponding to the current ambient noise volume is 40 db to 60 db, and the audio volume segment corresponding to the original volume is 20 db to 50 db, and The volume corresponding to the query, the corresponding average comfort volume is 46db. Volume control The device determines a volume gain of the audio to be played = | average comfort volume - original volume | = 9db. Then, the volume control device determines the output volume of the to-be-played audio is 52db according to the acquired user comfort volume 35db, the playback distance of 4cm, the pre-stored standard distance of 3cm, and the determined volume gain of 9db; The device outputs audio from the customer service A to the user D at a volume of 52 db.

Preferably, during a real-time call, the volume control device measures the original volume of the audio and/or the playing environment information every predetermined time period, and updates the output based on the newly obtained original volume and/or playing environment information accordingly. Volume value. To cope with changes in various influencing factors in real-time calls.

Continuing to explain the first example of the present invention, during the conversation between the user D and the customer service A, when the volume control device is measured again at a predetermined time interval, it is determined that the original volume of the call audio of the customer service A becomes 70 db, that is, the customer service A The volume becomes louder. Then, the volume control device continues to determine that the noise volume segment corresponding to the current ambient noise volume is 40 db to 60 db according to the volume correspondence relationship shown in Table 1 above, and the audio volume segment corresponding to the original volume is 50 db to 80 db, and The volume corresponding to the query, the corresponding average comfort volume is 58db. Then the volume control device determines the volume gain of the to-be-played audio=|average comfort volume-original volume|=12db. Then, the volume control device according to the obtained user comfort volume 35db, the play distance 4cm, the pre-stored standard distance 3cm and the determined volume gain 12db, and the preliminary output volume of the to-be-played audio is determined to be 55db by formula (2). The volume of the volume control device 55db outputs the audio from the customer service A to the user D.

According to the mode of the present invention, it is possible to further adjust the audio of different original sounds, so that regardless of the size of the original audio, for the answering party, such as the user D, the volume that is heard is always in a relatively comfortable area. Therefore, it is possible to avoid a situation in which the user experience is reduced due to the speaker's volume being too large or too small, so that the user can listen to the audio more clearly.

Preferably, the manner in which the volume control device determines the output volume of the audio to be played according to the volume gain, the play distance, and the user comfort volume specifically includes: the volume control device according to the volume gain Determining the volume control information of the to-be-played audio by the playback distance, the user comfort volume, and the original volume, and then adjusting the original volume based on the volume control information to obtain the to-be-supplied The output volume of the audio is played.

Preferably, the volume control information includes a difference between the output volume and the original volume.

Preferably, the volume control information includes a proportional relationship between the output volume and the original volume.

Wherein the volume control device determines the volume control information based on the following formula:

Among them, Control _param represents volume control information, SPL (Actual) represents output volume, and SPL (original) represents original volume.

For example, the volume control is based on Equation (3) and the Control _param is 5.62. Then, the volume control device adjusts the energy value of the audio to be played back to 5.62 times the original to play the to-be-played audio. It should be noted that the above examples are only for better explaining the technical solution of the present invention, and are not limited to the present invention. Those skilled in the art should understand that any environmental noise is determined according to the ambient noise volume and the original volume of the audio to be played. The volume gain corresponding to the volume and the original volume. Next, the volume control means determines the implementation of the output volume of the audio to be played based on the volume gain, the playback distance, and the user's comfort volume, all of which are included in the scope of the present invention.

According to a preferred embodiment of the invention, the method according to the invention further comprises a step S4 (not shown).

In step S4, the volume control means presents processing related information. The processing related information is used to prompt the user for the processed state of the original volume of the audio to be played.

The processed state includes but is not limited to any one of the following:

1) will be processed;

2) being processed;

3) Has been processed.

Preferably, the processing related information includes, but is not limited to, at least one of the following forms:

1) text information; for example, when the audio is played, the original volume value of the audio and the current output volume value are presented, and, for example, the user is presented with the prompt message "The audio has been subjected to the volume conversion processing!"; for example, During the real-time call, according to the voice of the other party Small, continuously updating the size of the original volume value showing the audio from the other party, and the value of the output volume corresponding to the audio correspondingly.

2) for indicating image and/or animation information that the original volume has been processed; for example, during playback, two sound lines are used to indicate the original volume and output volume of the audio to be played, and the sound wave is used to jump Display real-time changes in volume values; for example, when a WeChat audio is received, a red exclamation mark is presented to the user to prompt the user to process the audio. During processing, a red progress bar is displayed to indicate that processing is in progress, and when processing is complete After that, a green tick is displayed in front of the WeChat audio to prompt the user to complete the process.

According to a preferred embodiment of the present invention, the playback device includes a network device, and a volume control device belonging to the network device determines the output volume of the audio to be played based on the playback environment information and the user comfort volume; The original volume of the audio to be played is updated to the output volume; and the updated audio to be played is sent to the user equipment for playing the to-be-played audio.

The VoIP server, such as the cloud ROM server, receives the playback environment information fed back by the user equipment, including: a playback distance of 5 cm, and an ambient noise volume of 55 db. Then, the volume control device in the cloud ROM server obtains the user comfort volume corresponding to the user of the user equipment is 31 db, and the original volume of the call audio sent to the user equipment is 56 db, and the standard distance is 2 cm. Moreover, the volume correspondence relationship stored in the cloud ROM server is as shown in Table 1. Then, the volume control device queries according to the volume correspondence relationship, and obtains an average comfort volume corresponding to the ambient noise volume of the user equipment and the original volume of the call audio is 58 db, and the volume control device obtains the original volume according to the average comfort volume 58db. The difference between the 56db is 2db, and the volume gain of the call audio is determined to be 2db, and the output volume is 48db according to the formula (2) according to the obtained volume gain, play distance and user comfort volume. Then, the volume control device updates the attribute of the original volume of the call audio to 48 db, and sends the updated call audio to the user equipment for playing the to-be-played audio, thereby ensuring that the user can be more comfortable. The volume of the call from the party is clearly heard under the volume.

It should be noted that the above examples are only for better explaining the technical solutions of the present invention, and are not intended to limit the present invention. Those skilled in the art should understand that any of the to-be-played tones is determined. The output volume of the frequency, the method of updating the original volume of the audio to be played to the output volume, and then transmitting the updated audio to be played to the user equipment, Within the scope of the invention.

According to still another preferred embodiment of the present invention, the method according to the present embodiment further includes step S5 (not shown), step S6 (not shown), and step S7 (not shown).

In step S5, the volume control device plays a plurality of test audios.

The test audio includes selecting one candidate audio from among a plurality of candidate audios and selecting one candidate noise from the plurality of candidate noises, wherein the plurality of candidate audios respectively correspond to at least one audio volume segment, the plurality of The noise audio corresponds to at least one noise volume section.

Next, in step S6, the volume control device respectively acquires one or more user comfort volumes corresponding to the respective test audios.

The manner in which the volume control device obtains the user's comfortable volume corresponding to the test audio is the same as or similar to the manner in which the volume control device obtains the user's user's comfortable volume in the foregoing step S1, and details are not described herein again.

Next, in step S7, the volume control means respectively determines an average comfort volume corresponding to each test audio according to one or more user comfort volumes of the respective test audios, and saves an audio volume section of the candidate audio in the test audio. And a volume corresponding relationship between the noise volume section of the candidate noise in the test audio and the average comfort volume corresponding to the test audio.

For example, the candidate audio includes Audio_1 and Audio_2, and the candidate noise includes Noise_1 to Noise_4, and the volume sections included in each are as shown in Table 2. The volume control means obtains the test audios Test_1 to Test_8 as shown in Table 3 based on any combination of the respective candidate audios and the respective candidate noises. The volume control device plays the plurality of test audios Test_1, and then the volume control device acquires three user comfort volumes 20db, 28db, 24db corresponding to the test audio Test_1, and determines the test audio test_1 according to the three user comfort volumes. The average comfort volume is 24db, and the volume section [20db, 50db] of the candidate audio of the test audio Test_1 is saved, the noise volume section of the candidate noise of the test audio Test_1 [20db, 40db], and the average comfort volume obtained by the 24db are three. The volume correspondence of the person. And the volume The control device performs similar operations on the test audios Test_2 to Test_8, respectively, to obtain an audio volume section of the candidate audio in each test audio, and a noise volume section of the candidate noise in the test audio as shown in Table 3. And the volume correspondence of the average comfort volume corresponding to the test audio.

Table 2

候选音频Candidate audio	音频音量区段Audio volume section	候选噪声Candidate noise	噪声音量区段Noise volume section
候选音频Candidate audio	音频音量区段Audio volume section	候选噪声Candidate noise	噪声音量区段Noise volume section	Audio_1Audio_1	[20db,50db][20db, 50db]	Noise_1Noise_1	[20db,40db][20db, 40db]
Audio_2Audio_2	[20db,50db][20db, 50db]	Noise_2Noise_2	[40db,60db][40db, 60db]	Audio_1Audio_1	[20db,50db][20db, 50db]	Noise_1Noise_1	[20db,40db][20db, 40db]
Audio_2Audio_2	[20db,50db][20db, 50db]	Noise_2Noise_2	[40db,60db][40db, 60db]			Noise_3Noise_3	[60db,80db][60db, 80db]
		Noise_4Noise_4	[80db,100db][80db,100db]			Noise_3Noise_3	[60db,80db][60db, 80db]

table 3

测试音频Test audio	音频音量区段Audio volume section	噪声音量区段Noise volume section	平均舒适音量Average comfort volume
测试音频Test audio	音频音量区段Audio volume section	噪声音量区段Noise volume section	平均舒适音量Average comfort volume	Test_1Test_1	[20db,50db][20db, 50db]	[20db,40db][20db, 40db]	24twenty four
Test_2Test_2	[20db,50db][20db, 50db]	[40db,60db][40db, 60db]	4646	Test_1Test_1	[20db,50db][20db, 50db]	[20db,40db][20db, 40db]	24twenty four
Test_2Test_2	[20db,50db][20db, 50db]	[40db,60db][40db, 60db]	4646	Test_3Test_3	[20db,50db][20db, 50db]	[60db,80db][60db, 80db]	6363
Test_4Test_4	[20db,50db][20db, 50db]	[80db,100db][80db,100db]	8585	Test_3Test_3	[20db,50db][20db, 50db]	[60db,80db][60db, 80db]	6363
Test_4Test_4	[20db,50db][20db, 50db]	[80db,100db][80db,100db]	8585	Test_5Test_5	[50db,80db][50db, 80db]	[20db,40db][20db, 40db]	5454
Test_6Test_6	[50db,80db][50db, 80db]	[40db,60db][40db, 60db]	5555	Test_5Test_5	[50db,80db][50db, 80db]	[20db,40db][20db, 40db]	5454
Test_6Test_6	[50db,80db][50db, 80db]	[40db,60db][40db, 60db]	5555	Test_7Test_7	[50db,80db][50db, 80db]	[60db,80db][60db, 80db]	6868
Test_8Test_8	[50db,80db][50db, 80db]	[80db,100db][80db,100db]	8282	Test_7Test_7	[50db,80db][50db, 80db]	[60db,80db][60db, 80db]	6868

It should be noted that the above examples are only for better explaining the technical solutions of the present invention, and are not intended to limit the present invention. Those skilled in the art should understand that any one of the test audios is played and one or the corresponding one of the test audios is respectively obtained. a plurality of user comfort volumes, determining an average comfort volume corresponding to each test audio, and saving candidate audio in the test audio The implementation of the audio volume section, the noise volume section of the candidate noise in the test audio, and the volume correspondence of the average comfort volume corresponding to the test audio are all included in the scope of the present invention.

According to the solution of the present invention, the user's comfort volume selected by the user is obtained, and the output volume of the audio to be played is determined based on the user's comfortable volume, so that the audio volume that the user listens to is the volume that the user feels comfortable; the environment playback information is determined to be played. The output volume of the audio, so it is possible to determine the influence of the noise in the current environment and the distance between the user and the playback device on the output volume, and adjust the volume of the audio to be played to ensure that the user can listen clearly at a relatively comfortable volume. To the audio to be played.

2 is a block diagram showing the structure of a volume control device for controlling the output volume of audio in a playback device in accordance with the present invention. The volume control device according to the present invention includes a first acquisition device 1, a second acquisition device 2, and a determination device 3.

Referring to FIG. 2, the first acquisition device 1 acquires the user comfort volume of the current user.

The manner in which the first acquiring device 1 acquires the user's comfortable volume of the current user includes at least one of the following:

1) by reading the pre-stored user comfort volume;

2) The first obtaining device 1 includes a second playing device (not shown), a second child acquiring device (not shown), a selecting device (not shown), a seventh child determining device (not shown), and a eighth child. Obtain the device (not shown). Wherein the second playback device plays example audio, the example audio belongs to an example audio set, the audio set includes a plurality of example audios respectively belonging to different volume sections; and the second sub-acquisition device acquires adjustment of the example audio by the user An instruction device selects a new example audio based on the user's adjustment instruction to the example audio. The seventh sub-determining means confirms that the volume section of the played example audio is the user comfort volume section; the eighth sub-acquisition means acquires the volume in the comfort volume section selected by the user as the user comfort volume.

Preferably, the selecting means selects audio of a volume section adjacent to the played example audio as new example audio according to the user's adjustment instruction to the example audio.

Preferably, the volume control means is at a predetermined volume interval m, and the volume section is [x, The audio of y] is acquired to obtain a plurality of example audios, and the example audio is selected from the plurality of example audios based on the principle of binary search and played to gradually determine the volume section that the user feels comfortable with. Specifically, the second playback device plays example audio in which the start value of the volume section in the plurality of example audio corresponds to the intermediate position of [x, y]. Then, the selection device determines, according to the adjustment instruction of the user, that the search range is [a, x] (if it is too large) or [a+m, y] (if it is too small), and selects a new example audio and plays in the search range. The starting value of the volume section of the new example audio corresponds to the middle position of the search range. The volume control device repeats the step of playing the example audio and selecting a new example audio according to the user's adjustment instruction according to the user's subsequent adjustment instruction until the seventh sub-determination device confirms that the volume portion of the played example audio is the user comfort volume area. segment.

More preferably, the selection means may determine the starting value s of the volume section of the example audio based on the following operational rule: the determined search range is [a, b], and if ab cannot divide by 2 m, then s = a + m * ( Ab/2m+1), if ab can divide by 2m, then s=a+m*(ab/2m).

For example, the volume control device collects the audio at a volume interval of 20 decibels (db, decibel) to 80 db at 6 db to obtain 10 sample audios corresponding to the volume segment: [20db, 26db ], [26db, 32db], [32db, 38db], ... [74db, 80db]. Then, the second playback device selects the example audio corresponding to the volume segment [44db, 50db] of the intermediate position for playing, and the second sub-acquisition device acquires the adjustment command of the sample audio for the user to be "large", then the selection device selects The example audio of the middle volume section [32db, 38db] is selected within the volume range of [20db, 50db] and the example audio is played by the second playback device. Then, the second sub-acquisition device obtains the adjustment instruction “small” of the sample audio by the user again, and the volume control device determines that the intermediate volume segment between [38db, 50db] is the volume segment [44db, 50db], And selecting its corresponding example audio for playing, and the second sub-acquisition device control device obtains the adjustment instruction of the user as “determining”, and the seventh sub-determining device uses the volume segment [44db, 50db] of the example audio as the user. Comfortable volume section. Next, the eighth sub-acquisition device acquires a selection operation in which the user further selects "46db" in the volume section, and determines that the user's user comfort volume is 46 db.

It should be noted that the above examples are only for better explaining the technical solutions of the present invention, and are not intended to limit the present invention. Those skilled in the art should understand that any current user is obtained. The implementation of the method of user comfort volume should be included in the scope of the present invention.

Next, the second obtaining device 2 acquires playing environment information of the playing device.

1) ambient noise volume;

The manner in which the second obtaining device 2 acquires the playing environment information of the playing device includes at least one of the following:

1) The playback environment information includes an ambient noise volume, and the second acquisition device 2 acquires ambient noise audio by detecting ambient noise to determine an ambient noise volume. The second acquisition device 2 includes an acquisition device (not shown) and a decoding device (not shown).

Specifically, the collecting device samples and acquires noise audio corresponding to the playing environment in which the playing device is located, and then the decoding device decodes the noise audio into audio data of a predetermined format to determine an ambient noise volume of the noise audio.

Preferably, the decoding device modulates a Pulse Code Modulation (PCM) format.

Preferably, the decoding means determines the ambient noise volume of the noisy audio based on the audio data decoded into a predetermined format based on the following formula:

2) The playback environment information includes a play distance, and the second acquisition device 2 determines the play distance by detecting the distance between itself and the obstacle. For example, the second acquisition device 2 acquires the distance of the playback device from the obstacle in front of it by the sensing device in the playback device, and uses the distance as the playback distance.

Next, the determining device 3 determines an output volume of the to-be-played audio based on the playing environment information and the user comfort volume to play the to-be-played audio.

Wherein the determining means 3 determines based on the playing environment information and the user comfort volume The manner of playing the output volume of the to-be-played audio to play the to-be-played audio includes but is not limited to any of the following:

Specifically, the determining means 3 determines the output volume value of the audio to be played based on the playback environment information and the user comfort volume, and based on predetermined operational rules.

For example, the determining device 3 will determine the output volume value = play distance * user comfort volume / standard distance. Wherein, the standard distance is used to represent the distance most suitable for the user to listen to the audio.

As another example, user A receives audio from user B and user C via WeChat in the handset. The user comfort volume of the user A obtained by the first obtaining device 1 in the user A mobile phone is 32 db, wherein the output volume=(1+ambient noise volume/user comfort volume*100%)* user comfort volume. When the audio from the user B is played, the second acquisition device 2 acquires that the environment noise of the environment where the user A is located is very small, about 0 db, and the determining device 3 determines the output volume=user comfort volume=32 db, and the volume control device is based on The volume is output to play the audio from the user B; then, the audio from the user C is continued to be played. At this time, the second acquisition device 2 acquires the ambient noise volume of the environment in which the user A is located is 8 db, and the determining device 3 determines the output volume = ( 1+8db/32db*100%)*32=40db, then the volume control device plays the audio from user C at a volume of 40db. Obviously, according to the manner of the present invention, it is possible to flexibly adjust the output volume of the audio to be played according to the environment playing information of the environment in which the user A is located and the comfort volume preferred by the user A, so that the user A is no matter what In a variety of environments, the audio played can be listened to clearly and comfortably.

2) The determining device 3 determines an output volume of the to-be-played audio based on the playback environment information, the original volume of the audio to be played, and the user comfort volume to play the to-be-played audio.

i) obtaining audio data of the audio to be played by a software program, and decoding the audio data of the audio to be played into audio data of a predetermined format to determine the original volume of the audio to be played, the process of decoding to determine the original volume and step S2 Medium volume control device decoding The process of ambient noise audio is the same or similar and will not be described here;

The determining device 3 determines the output volume of the to-be-played audio based on the playing environment information, the original amount of the to-be-played audio, and the user's comfort volume, and the manner in which the audio to be played is played is included, but not limited to the following. Any one:

i) The determining means 3 first determines the volume gain corresponding to the ambient noise volume and the original volume based on the ambient noise volume and the original volume of the audio to be played. Then, the determining means 3 determines the output volume of the audio to be played based on the volume gain and the user's comfort volume.

For example, the first acquisition device 1 acquires that the user comfort volume is 40 db, the second acquisition device 2 acquires the ambient noise volume is 35 db, and the original volume of the audio to be played is 30 db. Next, the determining device 3 queries in the correspondence between the pre-stored audio volume segment, the noise volume segment and the volume gain, and obtains a corresponding volume gain of 3 db. Then, the determining means 3 determines that the output volume of the audio to be played is the sum of the user's comfort volume and the volume gain, that is, 43 db. The manner in which the corresponding relationship is obtained is similar to or the same as the manner in which the volume is obtained in the subsequent preferred embodiment.

Ii) The determining means 3 comprises an output determining means for determining the output volume of the audio to be played based on the ambient noise volume, the user comfort volume and the play distance. The output determining device includes a first sub-determining device (not shown) and a second sub-determining device (not shown); wherein the first sub-determining device further includes a fourth sub-determining device (not shown), fifth Sub-determination means (not shown) and sixth sub-determination means (not shown).

The playing environment information includes an ambient noise volume and a playing distance. The first sub-determining means determines a volume gain corresponding to the ambient noise volume and the original volume based on the ambient noise volume and the original volume of the audio to be played. Next, the second sub-determining device determines the audio to be played according to the volume gain, the playing distance, and the user comfort volume. The output volume.

Specifically, the fourth sub-determining means determines a noise volume section corresponding to the ambient noise volume, and an audio volume section corresponding to the original volume of the audio to be played. Then, the fifth sub-determining means determines the average volume of the comfort corresponding to the noise volume section of the ambient noise volume and the audio volume section of the original volume, based on the volume correspondence. Next, the sixth sub-determining means determines the volume gain of the audio to be played based on the original volume and the average comfort volume.

The manner in which the fifth sub-determination device acquires the volume correspondence relationship includes but is not limited to any one of the following:

i) reading the pre-stored volume correspondence;

Ii) playing a plurality of test audios, respectively obtaining one or more user comfort volumes corresponding to the respective test audios, and determining an average comfort volume corresponding to each test audio according to one or more user comfort volumes of the respective test audios, and The volume volume section of the candidate audio in the test audio, the noise volume section of the candidate noise in the test audio, and the volume correspondence of the average comfort volume corresponding to the test audio are saved. The specific implementation of the method will be detailed in the subsequent preferred embodiments, and details are not described herein again.

Preferably, the second sub-determining means determines the output volume of the audio to be played based on the volume gain, the play distance, and the user comfort volume based on the following formula.

According to the first example of the present invention, the volume correspondence stored in the mobile phone of the user D is as shown in Table 4 below.

Table 4

When the user D answers the call audio of the customer service A from the call center through the mobile phone, the volume control device in the mobile phone determines that the current ambient noise volume is 43 db, and the original volume of the call audio from the customer service A is light, which is 37 db. Then, the fourth sub-determining device determines that the noise volume section corresponding to the current ambient noise volume is 40 db to 60 db according to the volume correspondence relationship shown in the above table 4, and the audio volume section corresponding to the original volume is 20 db to 50 db. Then, the fifth sub-determination device queries in the volume correspondence relationship, and the corresponding average comfort volume is 46db. Then, the sixth sub-determining means determines the volume gain of the to-be-played audio = | average comfort volume - original volume | = 9db. Next, the second sub-determination device is based on the user comfort volume 35db acquired by the first acquisition device 1, the playback distance acquired by the second acquisition device is 4 cm, the pre-stored standard distance is 3 cm, and the volume gain 9db determined by the sixth sub-determination device is The output volume of the audio to be played is determined to be 52 db by the formula (2); the volume control device outputs the audio from the customer service A to the user D at a volume of 52 db.

Continuing with the first example of the present invention, the user D has called with the customer service A. During the process, when the volume control device is measured again at a predetermined time interval, it is determined that the original volume of the call audio of the customer service A becomes 70 db, that is, the volume of the customer service A becomes large. Then, the volume control device continues to determine that the noise volume segment corresponding to the current ambient noise volume is 40 db to 60 db according to the volume correspondence relationship shown in Table 1 above, and the audio volume segment corresponding to the original volume is 50 db to 80 db, and The volume corresponding to the query, the corresponding average comfort volume is 58db. Then the volume control device determines the volume gain of the to-be-played audio=|average comfort volume-original volume|=12db. Then, the volume control device according to the obtained user comfort volume 35db, the play distance 4cm, the pre-stored standard distance 3cm and the determined volume gain 12db, and the preliminary output volume of the to-be-played audio is determined to be 55db by formula (2). The volume of the volume control device 55db outputs the audio from the customer service A to the user D.

Preferably, the second sub-determining means further comprises an eighth sub-determining means (not shown) and a ninth sub-determining means (not shown). The eighth sub-determining device determines volume control information of the to-be-played audio according to the volume gain, the play distance, the user comfort volume, and the original volume, and then the ninth sub-determining device is based on the The volume control information adjusts the original volume to obtain the output volume of the audio to be played.

Wherein, the volume control information includes a volume adjustment value for adjusting the original volume to obtain an output volume.

Wherein, the eighth sub-determining means determines the volume control information based on the following formula:

Among them, Control _param represents volume control information, SPL (Actual) represents output volume, and SPL (origina) represents original volume.

For example, the Control _param obtained by the eighth sub-determination device according to the formula (3) is 5.62. Then, the ninth sub-determining device adjusts the energy value of the audio to be played back to 5.62 times the original to play the to-be-played audio.

It should be noted that the above examples are only for better explaining the technical solution of the present invention, and are not limited to the present invention. Those skilled in the art should understand that any environmental noise is determined according to the ambient noise volume and the original volume of the audio to be played. The volume gain corresponding to the volume and the original volume. Next, the volume control means determines the implementation of the output volume of the audio to be played based on the volume gain, the playback distance, and the user's comfort volume, all of which are included in the scope of the present invention.

According to a preferred embodiment of the invention, the volume control device according to the invention further comprises a presentation device (not shown).

The rendering device presents processing related information. The processing related information is used to prompt the user for the processed state of the original volume of the audio to be played.

The processed state includes but is not limited to any one of the following:

1) will be processed;

2) being processed;

3) Has been processed.

1) text information; for example, when playing audio, the rendering device presents the original volume value of the audio and the current output volume value, and, for example, presents the user with a message indicating that the audio has been subjected to volume conversion processing! For example, during a real-time call, the presentation device continuously updates the size of the original volume value of the audio from the other party and the value of the output volume corresponding to the corresponding audio according to the voice size of the other party.

2) for indicating image and/or animation information that the original volume has been processed; for example, during playback, the rendering device respectively uses two sonic lines to indicate the original volume and output volume of the audio to be played, and utilizes the sound wave line. Bounce to display real-time changes in volume values; for example, when a WeChat audio is received, the rendering device first presents a red exclamation mark to the user to prompt the user to process the audio, and during processing, a red progress bar is displayed to indicate that processing is in progress. and When the processing is completed, a green check mark is displayed in front of the WeChat audio to prompt the user to complete the processing.

The VoIP server, such as the cloud ROM server, receives the playback environment information fed back by the user equipment, including: a playback distance of 5 cm, and an ambient noise volume of 55 db. Then, the volume control device in the cloud ROM server obtains the user's comfortable volume corresponding to the user of the user equipment is 31 db, and the original volume of the audio to be played to be sent to the user equipment is 56 db, and the standard distance is 2 cm. Moreover, the volume correspondence relationship stored in the cloud ROM server is as shown in Table 4. Then, the volume control device queries according to the volume correspondence relationship, and obtains an average comfort volume corresponding to the ambient noise volume of the user equipment and the original volume of the audio to be played of the call is 58 db, and the volume control device obtains the average comfort volume 58 db according to the obtained The difference between the original volume of 56db is 2db, and the volume gain of the audio to be played is determined to be db, and the output volume is 48db according to formula (2) according to the obtained volume gain, play distance and user comfort volume. Then, the volume control device updates the attribute of the original volume of the audio to be played back to 48 db, and sends the updated call pending audio to the user equipment for playing the to-be-played audio, thereby ensuring the user. It is able to clearly hear the call audio from the party at a more comfortable volume.

It should be noted that the above examples are only for better explaining the technical solution of the present invention, and are not limited to the present invention. Those skilled in the art should understand that any determination of the output volume of the audio to be played will be The implementation of the method of updating the original volume of the played audio to the output volume and then transmitting the updated audio to be played to the user equipment is intended to be included within the scope of the present invention.

According to still another preferred embodiment of the present invention, the volume control apparatus according to the present invention further includes a first playback device (not shown), a first sub-acquisition device (not shown), and a third sub-determination device. Set (not shown).

The first playing device plays a plurality of test audios. The test audio includes selecting one candidate audio from a plurality of candidate audios and selecting one candidate noise from a plurality of candidate noises, wherein the plurality of candidate audios respectively correspond to at least one audio volume segment, the plurality of noise audios Corresponding to at least one noise volume segment.

Then, the first sub-acquisition device respectively acquires one or more user comfort volumes corresponding to the respective test audios.

The manner in which the first sub-acquisition device obtains the user's comfortable volume corresponding to the test audio is the same as or similar to the manner in which the first acquisition device 1 obtains the user's user's comfortable volume.

Next, the third sub-determining device respectively determines an average comfort volume corresponding to each test audio according to one or more user comfort volumes of the respective test audios, and saves an audio volume segment of the candidate audio in the test audio, The noise volume section of the candidate noise in the audio, and the volume correspondence of the average comfort volume corresponding to the test audio are tested.

For example, the candidate audio includes Audio_1 and Audio_2, and the candidate noise includes Noise_1 to Noise_4, and the volume sections thereof are respectively included as shown in Table 5. The volume control means obtains the test audios Test_1 to Test_8 as shown in Table 6 based on any combination of the respective candidate audios and the respective candidate noises. The first playback device plays the plurality of test audios Test_1, and then the first sub-acquisition device acquires three user comfort volumes 20db, 28db, and 24db corresponding to the test audio Test_1. Next, the third sub-determining device determines, according to the three user comfort volume, that the average comfort volume corresponding to the test audio Test_1 is 24 db, and saves the volume segment of the candidate audio of the test audio Test_1 [20db, 50db], and the test audio Test_1 The volume corresponding to the noise volume section [20db, 40db] of the candidate noise and the average comfortable volume 24db obtained. And, the first playback device, the first sub-acquisition device, and the third sub-determination device respectively perform similar operations on the test audios Test_2 to Test_8 to obtain the audio volume of the candidate audio in each test audio as shown in Table 6. The volume, the noise volume section of the candidate noise in the test audio, and the volume correspondence of the average comfort volume corresponding to the test audio.

table 5

Table 6

It should be noted that the above examples are only for better explaining the technical solutions of the present invention, and are not intended to limit the present invention. Those skilled in the art should understand that any one of the test audios is played and one or the corresponding one of the test audios is respectively obtained. a plurality of user comfort volumes, determining an average comfort volume corresponding to each test audio, and saving an audio volume section of candidate audio in the test audio, a noise volume section of candidate noise in the test audio, and the The implementation of the volume correspondence of the average comfort volume corresponding to the test audio should be included in the scope of the present invention.

According to the solution of the present invention, by obtaining the user comfort volume selected by the user, the output volume of the audio to be played is determined based on the user's comfortable volume, and the audio volume that the user listens to is obtained. It is the volume that it feels comfortable; combined with the environment playback information to determine the output volume of the audio to be played, so it is possible to determine the influence of the noise in the current environment and the distance between the user and the playback device on the output volume, and adjust the volume of the audio to be played accordingly. In order to ensure that the user can clearly listen to the audio to be played at a more comfortable volume.

The software program of the present invention can be executed by a processor to implement the steps or functions described above. Likewise, the software program (including related data structures) of the present invention can be stored in a computer readable recording medium such as a RAM memory, a magnetic or optical drive or a floppy disk and the like. In addition, some of the steps or functions of the present invention may be implemented in hardware, for example, as a circuit that cooperates with a processor to perform various functions or steps.

Additionally, a portion of the invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide a method and/or solution in accordance with the present invention. The program instructions for invoking the method of the present invention may be stored in a fixed or removable recording medium and/or transmitted by a data stream in a broadcast or other signal bearing medium, and/or stored in a The working memory of the computer device in which the program instructions are run. Herein, an embodiment in accordance with the present invention includes a device including a memory for storing computer program instructions and a processor for executing program instructions, wherein when the computer program instructions are executed by the processor, triggering The apparatus operates based on the aforementioned methods and/or technical solutions in accordance with various embodiments of the present invention.

It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim. In addition, it is to be understood that the word "comprising" does not exclude other elements or steps. A plurality of units or devices recited in the system claims can also be implemented by a unit or device by software or hardware. The first, second, etc. words are used to denote names and do not denote any particular order.

Claims

A method for controlling an output volume of an audio to be played in a playback device, wherein the method comprises the steps of:

a Get the user's user comfort volume;

b acquiring playback environment information of the playback device;

c determining an output volume of the to-be-played audio based on the playback environment information and the user comfort volume to play the to-be-played audio.
The method of claim 1 wherein said step c comprises the steps of:

The c1 determines an output volume of the to-be-played audio based on the playback environment information, an original volume of the to-be-played audio, and the user comfort volume to play the to-be-played audio.
The method according to claim 1 or 2, wherein the playback environment information comprises an ambient noise volume, wherein the step b comprises:

- sampling to obtain noise audio corresponding to a playback environment in which the playback device is located;

Decoding the noisy audio into audio data of a predetermined format to determine an ambient noise level of the noisy audio.
The method of claim 3, wherein the playback environment information further comprises a play distance, wherein the step c1 comprises:

And determining, according to the ambient noise volume and the original volume of the audio to be played, a volume gain corresponding to the ambient noise volume and the original volume;

n determining the output volume of the audio to be played based on the volume gain, the play distance, and the user comfort volume.
The method of any of claims 1 to 4, wherein the method further comprises the steps of:

Playing a plurality of test audios, wherein the test audio comprises selecting one candidate audio from among a plurality of candidate audios and selecting one candidate noise from among a plurality of candidate noises, wherein the plurality of candidate audios respectively correspond to at least one audio volume a segment, the plurality of noise audios respectively corresponding to at least one noise volume segment;

- respectively obtaining one or more user comfort volumes corresponding to the respective test audio;

- determining an average comfort volume corresponding to each test audio, respectively, based on one or more user comfort volumes of the respective test audios, and saving an audio volume section of the candidate audio in the test audio, candidate noise in the test audio The noise volume section and the volume correspondence of the average comfort volume corresponding to the test audio.
The method according to claim 4 or 5, wherein said step m comprises the following steps:

Determining a noise volume section corresponding to the ambient noise volume, and an audio volume section corresponding to the original volume of the audio to be played;

Determining, based on the volume correspondence, an average volume of comfort corresponding to a noise volume segment of the ambient noise volume and an audio volume segment of the original volume;

- determining a volume gain of the audio to be played based on the original volume and the average comfort volume.
The method according to any one of claims 1 to 6, wherein the method obtains user comfort volume by the following steps:

x playing example audio, wherein the example audio belongs to an example audio set, the audio set comprising a plurality of example audios respectively belonging to different volume segments;

y obtaining an adjustment instruction of the user to the example audio;

z selecting a new example audio according to the user's adjustment instruction to the example audio;

- repeating steps x, y and z above until the user confirms that the volume section of the played example audio is the user comfort volume section;

- Acquiring the volume in the comfort volume section selected by the user as the user comfort volume.
The method according to any one of claims 1 to 7, wherein the method further comprises the steps of:

- Presentation processing related information to prompt the user of the processed state of the original volume of the audio to be played.
The method according to any one of claims 1 to 8, wherein the playback device comprises a network device, wherein the step c comprises the steps of:

Determining the output volume of the audio to be played based on the playback environment information and the user comfort volume;

- updating the original volume of the audio to be played to the output volume;

- transmitting the updated audio to be played to the user equipment for playing the audio to be played.
A volume control device for controlling an output volume of an audio to be played in a playback device, wherein the volume control device comprises:

a first obtaining device, configured to acquire a user user's comfortable volume;

a second acquiring device, configured to acquire playing environment information of the playing device;

And determining means for determining an output volume of the to-be-played audio based on the playing environment information and the user comfort volume to play the to-be-played audio.
The volume control device according to claim 10, wherein said determining means comprises:

The output determining means is configured to determine an output volume of the to-be-played audio based on the playback environment information, an original volume of the audio to be played, and the user comfort volume to play the to-be-played audio.
The volume control device according to claim 10 or 11, wherein the playback environment information comprises an ambient noise volume, wherein the second obtaining means comprises:

a collecting device, configured to sample to obtain noise audio corresponding to a playing environment in which the playing device is located;

And a decoding device, configured to decode the noise audio into audio data of a predetermined format to determine an ambient noise volume of the noise audio.
The volume control device according to claim 12, wherein the playback environment information further comprises a play distance, wherein the output determining means comprises:

a first sub-determining device, configured to determine a volume gain corresponding to the ambient noise volume and the original volume according to the ambient noise volume and an original volume of the to-be-played audio;

And a second sub-determining device configured to determine the output volume of the audio to be played according to the volume gain, the play distance, and the user comfort volume.
The volume control device according to any one of claims 10 to 13, wherein the volume control device further comprises:

a first playing device, configured to play a plurality of test audios, wherein the test audio includes selecting one candidate audio from among a plurality of candidate audios and selecting one candidate noise from among a plurality of candidate noises, wherein the plurality of candidate audios Corresponding to at least one audio volume segment respectively, the plurality of noise audios respectively corresponding to at least one noise volume segment;

a first sub-acquisition device, configured to respectively acquire one or more user comfort volumes corresponding to the respective test audios;

a third sub-determining device, configured to respectively determine an average comfort volume corresponding to each test audio according to one or more user comfort volumes of the respective test audios, and save an audio volume section of the candidate audio in the test audio, The noise volume section of the candidate noise in the test audio, and the volume correspondence relationship of the average comfort volume corresponding to the test audio.
The volume control device according to claim 13 or 14, wherein the first sub-determination device comprises:

a fourth sub-determination device, configured to determine a noise volume segment corresponding to the ambient noise volume, and an audio volume segment corresponding to an original volume of the audio to be played;

a fifth sub-determining device, configured to determine, according to the volume correspondence, an average volume of comfort corresponding to a noise volume section of the ambient noise volume and an audio volume section of the original volume;

And a sixth sub-determining device, configured to determine a volume gain of the to-be-played audio according to the original volume and the average comfort volume.
The volume control device according to any one of claims 10 to 15, wherein the volume control means acquires a user's comfort volume by:

a second playback device for playing example audio;

a second sub-acquisition device, configured to acquire an adjustment instruction of the sample audio by the user;

Selecting means for selecting a new example audio according to the adjustment instruction of the sample audio by the user;

a seventh sub-determining means for confirming that the volume section of the example audio is a user comfort volume Section

And a eighth sub-acquisition device, configured to acquire a volume in the comfortable volume section selected by the user as the user comfort volume.
The volume control device according to any one of claims 10 to 16, wherein the volume control device further comprises:

And a rendering device for presenting processing related information to prompt the user for the processed state of the original volume of the audio to be played.
The volume control device according to any one of claims 10 to 17, wherein the playback device comprises a network device, wherein the network device is used to:

Determining the output volume of the audio to be played based on the playback environment information and the user comfort volume;

- updating the original volume of the audio to be played to the output volume;

- transmitting the updated audio to be played to the user equipment for playing the audio to be played.
A playback control plug-in, wherein the playback control plug-in includes the volume control device according to any one of claims 10 to 18.
A computer readable medium, comprising computer code, when the computer code is executed, the method of any one of claims 1 to 9 being performed.
A computer program product, when the computer program product is executed by a computer device, the method of any one of claims 1 to 9 being performed.
A computer device comprising a memory and a processor, the memory storing computer code, the processor being configured to perform the computer code according to any one of claims 1 to 9 The method described.