CA2305534A1 - Frame-based audio coding with gain-control words - Google Patents
Frame-based audio coding with gain-control words Download PDFInfo
- Publication number
- CA2305534A1 CA2305534A1 CA002305534A CA2305534A CA2305534A1 CA 2305534 A1 CA2305534 A1 CA 2305534A1 CA 002305534 A CA002305534 A CA 002305534A CA 2305534 A CA2305534 A CA 2305534A CA 2305534 A1 CA2305534 A1 CA 2305534A1
- Authority
- CA
- Canada
- Prior art keywords
- audio
- splice
- information
- technique
- gain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- OVOUKWFJRHALDD-UHFFFAOYSA-N 2-[2-(2-acetyloxyethoxy)ethoxy]ethyl acetate Chemical compound CC(=O)OCCOCCOCCOC(C)=O OVOUKWFJRHALDD-UHFFFAOYSA-N 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/038—Cross-faders therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
Abstract
Several audio signal processing techniques may be used in various combinations to improve the quality of audio represented by an information stream formed by splice editing two or more other information streams. The techniques are particularly useful in applications that bundle audio information with video information. In one technique, gain-control words conveyed with the audio information stream are used to interpolate playback sound levels across a splice. In another technique, special filterbanks or forms of TDAC transforms are used to suppress aliasing artifacts on either side of a splice. In yet another technique, special filterbanks or crossfade window functions are used to optimize the attenuation of spectral splatter created at a splice. In a further technique, audio sample rates are converted according to frame lengths and rates to allow audio information to be bundled with, for example, video information. In yet a further technique, audio blocks are dynamically aligned so that proper synchronization can be maintained across a splice. An example for 48 kHz audio with NTSC video is discussed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/953,324 | 1997-10-17 | ||
US08/953,324 US5899969A (en) | 1997-10-17 | 1997-10-17 | Frame-based audio coding with gain-control words |
PCT/US1998/021552 WO1999021371A1 (en) | 1997-10-17 | 1998-10-13 | Frame-based audio coding with gain-control words |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2305534A1 true CA2305534A1 (en) | 1999-04-29 |
CA2305534C CA2305534C (en) | 2007-03-27 |
Family
ID=25493823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002305534A Expired - Lifetime CA2305534C (en) | 1997-10-17 | 1998-10-13 | Frame-based audio coding with gain-control words |
Country Status (11)
Country | Link |
---|---|
US (1) | US5899969A (en) |
EP (1) | EP1023809B1 (en) |
JP (1) | JP4229586B2 (en) |
KR (1) | KR100591009B1 (en) |
AT (1) | ATE200722T1 (en) |
AU (1) | AU755358B2 (en) |
CA (1) | CA2305534C (en) |
DE (1) | DE69800717T2 (en) |
DK (1) | DK1023809T3 (en) |
ES (1) | ES2156034T3 (en) |
WO (1) | WO1999021371A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9324328B2 (en) | 2002-03-28 | 2016-04-26 | Dolby Laboratories Licensing Corporation | Reconstructing an audio signal with a noise parameter |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4867076B2 (en) * | 2001-03-28 | 2012-02-01 | 日本電気株式会社 | Compression unit creation apparatus for speech synthesis, speech rule synthesis apparatus, and method used therefor |
KR100852613B1 (en) * | 2001-06-08 | 2008-08-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Editing of audio signals |
US7941037B1 (en) * | 2002-08-27 | 2011-05-10 | Nvidia Corporation | Audio/video timescale compression system and method |
KR101101384B1 (en) * | 2003-04-24 | 2012-01-02 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Parameterized temporal feature analysis |
RU2381571C2 (en) * | 2004-03-12 | 2010-02-10 | Нокиа Корпорейшн | Synthesisation of monophonic sound signal based on encoded multichannel sound signal |
US20060062407A1 (en) * | 2004-09-22 | 2006-03-23 | Kahan Joseph M | Sound card having feedback calibration loop |
US8521314B2 (en) | 2006-11-01 | 2013-08-27 | Dolby Laboratories Licensing Corporation | Hierarchical control path with constraints for audio dynamics processing |
CN101960866B (en) * | 2007-03-01 | 2013-09-25 | 杰里·马哈布比 | Audio spatialization and environment simulation |
WO2009081003A1 (en) * | 2007-12-21 | 2009-07-02 | France Telecom | Transform-based coding/decoding, with adaptive windows |
TWI643187B (en) | 2009-05-27 | 2018-12-01 | 瑞典商杜比國際公司 | Systems and methods for generating a high frequency component of a signal from a low frequency component of the signal, a set-top box, a computer program product and storage medium thereof |
US11657788B2 (en) | 2009-05-27 | 2023-05-23 | Dolby International Ab | Efficient combined harmonic transposition |
US9338523B2 (en) * | 2009-12-21 | 2016-05-10 | Echostar Technologies L.L.C. | Audio splitting with codec-enforced frame sizes |
US9779736B2 (en) | 2011-11-18 | 2017-10-03 | Sirius Xm Radio Inc. | Systems and methods for implementing efficient cross-fading between compressed audio streams |
CA2855845A1 (en) | 2011-11-18 | 2013-05-23 | Sirius Xm Radio Inc. | Systems and methods for implementing cross-fading, interstitials and other effects downstream |
US8712076B2 (en) | 2012-02-08 | 2014-04-29 | Dolby Laboratories Licensing Corporation | Post-processing including median filtering of noise suppression gains |
US9173025B2 (en) | 2012-02-08 | 2015-10-27 | Dolby Laboratories Licensing Corporation | Combined suppression of noise, echo, and out-of-location signals |
MX343807B (en) | 2012-03-06 | 2016-11-24 | Sirius Xm Radio Inc | Systems and methods for audio attribute mapping. |
JP2015525374A (en) * | 2012-06-04 | 2015-09-03 | サムスン エレクトロニクス カンパニー リミテッド | Audio encoding method and apparatus, audio decoding method and apparatus, and multimedia equipment employing the same |
CN102739323B (en) * | 2012-06-16 | 2013-09-04 | 天地融科技股份有限公司 | Audio data transmission method |
TWI557727B (en) | 2013-04-05 | 2016-11-11 | 杜比國際公司 | An audio processing system, a multimedia processing system, a method of processing an audio bitstream and a computer program product |
EP2996269A1 (en) | 2014-09-09 | 2016-03-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio splicing concept |
US9536509B2 (en) | 2014-09-25 | 2017-01-03 | Sunhouse Technologies, Inc. | Systems and methods for capturing and interpreting audio |
US11308928B2 (en) | 2014-09-25 | 2022-04-19 | Sunhouse Technologies, Inc. | Systems and methods for capturing and interpreting audio |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4551688A (en) * | 1984-05-23 | 1985-11-05 | Rockwell International Corporation | Delay compensated automatic gain control |
US4625240A (en) * | 1984-07-25 | 1986-11-25 | Eeco, Inc. | Adaptive automatic gain control |
US5109417A (en) * | 1989-01-27 | 1992-04-28 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
US5479562A (en) * | 1989-01-27 | 1995-12-26 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding audio information |
NL9000338A (en) * | 1989-06-02 | 1991-01-02 | Koninkl Philips Electronics Nv | DIGITAL TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER FOR USE IN THE TRANSMISSION SYSTEM AND RECORD CARRIED OUT WITH THE TRANSMITTER IN THE FORM OF A RECORDING DEVICE. |
ES2087522T3 (en) * | 1991-01-08 | 1996-07-16 | Dolby Lab Licensing Corp | DECODING / CODING FOR MULTIDIMENSIONAL SOUND FIELDS. |
US5394508A (en) * | 1992-01-17 | 1995-02-28 | Massachusetts Institute Of Technology | Method and apparatus for encoding decoding and compression of audio-type data |
US5369724A (en) * | 1992-01-17 | 1994-11-29 | Massachusetts Institute Of Technology | Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients |
US5623577A (en) * | 1993-07-16 | 1997-04-22 | Dolby Laboratories Licensing Corporation | Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
US5451954A (en) * | 1993-08-04 | 1995-09-19 | Dolby Laboratories Licensing Corporation | Quantization noise suppression for encoder/decoder system |
US5430485A (en) * | 1993-09-30 | 1995-07-04 | Thomson Consumer Electronics, Inc. | Audio/video synchronization in a digital transmission system |
US5920842A (en) * | 1994-10-12 | 1999-07-06 | Pixel Instruments | Signal synchronization |
WO1996014695A1 (en) * | 1994-11-04 | 1996-05-17 | Philips Electronics N.V. | Encoding and decoding of a wideband digital information signal |
US5727119A (en) * | 1995-03-27 | 1998-03-10 | Dolby Laboratories Licensing Corporation | Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase |
EP0827647B1 (en) * | 1996-03-19 | 2002-07-17 | Dolby Laboratories Licensing Corporation | Analysis/synthesis filtering system with efficient oddly-stacked single-sideband filter bank using time-domain aliasing cancellation |
-
1997
- 1997-10-17 US US08/953,324 patent/US5899969A/en not_active Expired - Lifetime
-
1998
- 1998-10-13 DK DK98952266T patent/DK1023809T3/en active
- 1998-10-13 ES ES98952266T patent/ES2156034T3/en not_active Expired - Lifetime
- 1998-10-13 DE DE69800717T patent/DE69800717T2/en not_active Expired - Lifetime
- 1998-10-13 AU AU98009/98A patent/AU755358B2/en not_active Expired
- 1998-10-13 WO PCT/US1998/021552 patent/WO1999021371A1/en active IP Right Grant
- 1998-10-13 CA CA002305534A patent/CA2305534C/en not_active Expired - Lifetime
- 1998-10-13 EP EP98952266A patent/EP1023809B1/en not_active Expired - Lifetime
- 1998-10-13 JP JP2000517559A patent/JP4229586B2/en not_active Expired - Lifetime
- 1998-10-13 AT AT98952266T patent/ATE200722T1/en active
- 1998-10-13 KR KR1020007003421A patent/KR100591009B1/en not_active IP Right Cessation
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9324328B2 (en) | 2002-03-28 | 2016-04-26 | Dolby Laboratories Licensing Corporation | Reconstructing an audio signal with a noise parameter |
US9343071B2 (en) | 2002-03-28 | 2016-05-17 | Dolby Laboratories Licensing Corporation | Reconstructing an audio signal with a noise parameter |
US9412388B1 (en) | 2002-03-28 | 2016-08-09 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal with temporal shaping |
US9412389B1 (en) | 2002-03-28 | 2016-08-09 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal by copying in a circular manner |
US9412383B1 (en) | 2002-03-28 | 2016-08-09 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal by copying in a circular manner |
US9466306B1 (en) | 2002-03-28 | 2016-10-11 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal with temporal shaping |
US9548060B1 (en) | 2002-03-28 | 2017-01-17 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal with temporal shaping |
US9653085B2 (en) | 2002-03-28 | 2017-05-16 | Dolby Laboratories Licensing Corporation | Reconstructing an audio signal having a baseband and high frequency components above the baseband |
US9704496B2 (en) | 2002-03-28 | 2017-07-11 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal with phase adjustment |
US9767816B2 (en) | 2002-03-28 | 2017-09-19 | Dolby Laboratories Licensing Corporation | High frequency regeneration of an audio signal with phase adjustment |
US9947328B2 (en) | 2002-03-28 | 2018-04-17 | Dolby Laboratories Licensing Corporation | Methods, apparatus and systems for determining reconstructed audio signal |
US10529347B2 (en) | 2002-03-28 | 2020-01-07 | Dolby Laboratories Licensing Corporation | Methods, apparatus and systems for determining reconstructed audio signal |
Also Published As
Publication number | Publication date |
---|---|
ATE200722T1 (en) | 2001-05-15 |
AU9800998A (en) | 1999-05-10 |
CA2305534C (en) | 2007-03-27 |
KR100591009B1 (en) | 2006-06-22 |
JP2001521347A (en) | 2001-11-06 |
ES2156034T3 (en) | 2001-06-01 |
DE69800717T2 (en) | 2001-09-13 |
JP4229586B2 (en) | 2009-02-25 |
DK1023809T3 (en) | 2001-05-07 |
EP1023809A1 (en) | 2000-08-02 |
WO1999021371A1 (en) | 1999-04-29 |
EP1023809B1 (en) | 2001-04-18 |
US5899969A (en) | 1999-05-04 |
DE69800717D1 (en) | 2001-05-23 |
KR20010024342A (en) | 2001-03-26 |
AU755358B2 (en) | 2002-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20181015 |
|
MKEX | Expiry |
Effective date: 20181015 |