WO1997001168A1 - Digital processing device for audio signal - Google Patents
Digital processing device for audio signal Download PDFInfo
- Publication number
- WO1997001168A1 WO1997001168A1 PCT/EP1996/002637 EP9602637W WO9701168A1 WO 1997001168 A1 WO1997001168 A1 WO 1997001168A1 EP 9602637 W EP9602637 W EP 9602637W WO 9701168 A1 WO9701168 A1 WO 9701168A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- processing device
- digital processing
- audio signal
- sampling
- Prior art date
Links
Classifications
-
- 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
- G11B27/005—Reproducing at a different information rate from the information rate of recording
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0091—Means for obtaining special acoustic effects
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/155—Musical effects
- G10H2210/195—Modulation effects, i.e. smooth non-discontinuous variations over a time interval, e.g. within a note, melody or musical transition, of any sound parameter, e.g. amplitude, pitch, spectral response, playback speed
- G10H2210/241—Scratch effects, i.e. emulating playback velocity or pitch manipulation effects normally obtained by a disc-jockey manually rotating a LP record forward and backward
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
- G10H2220/521—Hall effect transducers or similar magnetic field sensing semiconductor devices, e.g. for string vibration sensing or key movement sensing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
Definitions
- the present invention relates to a digital processing device for an audio signal.
- scratching has become established as a generally acknowledged musical instrument and has been utilized in numerous music productions. More and more music groups are also using scratch musicians live.
- scratch aids exist for digital recording-and-playback apparatus (music samplers) in the form of scratch discs, slide potentiometers, knobs, etc.
- the object of the invention is to propose a device which avoids the drawbacks of the prior art.
- This object is achieved especially thanks to the novel elements of claim 1.
- this object is achieved thanks to a reference generated mechanically and making it possible to pass instantly from normal reproduction to manipulated reproduction.
- the invention can be realized using any other kind of moving element, for instance a running belt or a rotating knob or control button on the front panel of an audiomixer.
- Figure 1 A is a front elevation of a first embodiment of the invention wherein the movable element, the speed and direction of which can be controlled, is made up of a record-player tumtable ;
- Figure 1 B is a top plan view of this embodiment ;
- Figure 1 C is an elevation of this embodiment with the incremental measuring system in lifted position ;
- Figure 2A is an elevation of a second embodiment of the invention likewise applied to a record player, wherein the speed of the turntable is measured optically ;
- Figure 2B is an enlarged view of the optical sensors of Figure 2A ;
- Figure 2C is a top plan view of the device of Figure 2A ;
- Figure 2D is an enlarged view of the optical marking on the tumtable of Figure 2C ;
- Figure 3A is a top plan view of a third embodiment of the invention, likewise applied to a record player, wherein the speed of the tumtable is measured by means of a Hall sensor ;
- Figure 3B is an enlarged view of the Hall sensor of Figure 3A ;
- Figure 4A is a fourth embodiment of the invention wherein the movable element is a belt driven by an electric motor via a slide coupling;
- Figure 4B is an elevation of the embodiment of Figure 4A.
- FIGS 1A-1C illustrate a first embodiment of the invention.
- This embodiment has the advantage of using a conventional record player 18 as the manually controllable movable element. This device can therefore be used by a disc jockey without excessive difficulty of adaptation.
- a disc 16 drives an incremental measuring system 11 available on the technical market under the name of incremental decoder or angle encoder.
- pulses occurring after predetermined intervals of time are used directly as the sampling pulse for the recording and playback of the digital music recording.
- each pulse triggers a measurement of the analog music signal from an external source, e.g., from a CD player, and enters the result as a numerical value in a storage position of a dynamic computer memory (not shown).
- the individual measurements lie one directly behind the other in the memory. It is to be heeded that the measuring system is a high-definition one. If satisfactory quality of the music reproduction is to be achieved, the sampling rate should yield 40,000 measurements per second.
- the measuring system At the normal rotation time of a record (speed of rotation 33.33 rpm) of 1.8 seconds, the measuring system must be capable of handling 72,000 pulses per rotation, or 18 angular seconds.
- the direction of rotation is evaluated in addition.
- the following and/or preceding storage position is converted, depending on the the direction of rotation, from digital to analog.
- the software addressing the computer memory can thereafter be as sophisticated as desired ; as a minimum, however, it must check the addressing of the computer memory present for overflows ; if, during recording or forward playback, the pointer reaches the end address of the memory provided, the pointer is to be set at the starting address of the memory provided, or at the end address in the case of backward play and reaching the starting address, respectively. It is thereby achieved that if the maximum available recording time is exceeded, the oldest recording is overwritten, which represents approximately the same mechanism as an endless tape loop in an analog echo apparatus.
- the signal should be digitalized with 16-bit width and be two- channel, i.e., stereo.
- FIGS 2A-2D illustrate a second embodiment of the invention, likewise applied to a record player.
- the turntable 16 of the record player comprises a pattern — in this example a pattern of altemating black 20 and white 23 marks.
- Two optical sensors 21 placed a short distance 22 above the turntable supply to a processing unit (not shown) a signal determined by the color of the mark just below each sensor.
- the processing unit determines the speed of rotation of the turntable of the record player.
- Two shifted optical sensors are necessary for determining the direction of rotation as well.
- An analog audio signal coming from an external source e.g., a CD player or a microphon, is then sampled at a frequency determined by the speed of rotation of the tumtable.
- optical sensor 21 may be provided, e.g., also a sensor using an optical fiber transporting a light beam collimated by a lens on the turntable. In a modification, it is also possible to use known marble sensors to determine the speed of the element 16.
- This embodiment having an optical sensor presents the drawback of being sensitive to dust and debris on the tumtable.
- Figures 3A and 3B illustrate another embodiment of the invention which is advantageous from this point of view.
- the speed of the turntable 16 of the record player is measured by means of a fixed magnetoinductive sensor 31 co-operating with a serrated ferromagnetic ring 30 on the tumtable of the record player.
- the invention is obviously not limited to this type of sensor, and any sensor or known device permitting the speed and direction of rotation of the tumtable to be determined may also be used. Hall-effect sensors may thus be used advantageously.
- FIGS 4A and 4B illustrate an embodiment of the invention in which no record player is used.
- a controllable servomotor 40 drives a cylinder 42 via a slide coupling 41.
- a second cylinder 43 connected to the measuring system 44 is driven by the first cylinder 42 by means of a wide belt 45.
- the disc jockey can manipulate and move the belt 45 by means of a handle 46 and thus act upon the speed and direction of rotation of the second cylinder 43.
- the measuring system 44 uses these parameters to determine the speed of reproduction of an audio signal coming from an external source.
- this device permits normal sound reproduction when the disc jockey does not act upon the movable element 45, the second cylinder being driven in this case at a normal speed by the servomotor 40.
- the electronic part of the device comprises a sampling buffer.
- the analog signal coming from a conventional analog source for instance a microphon
- a conventional analog source for instance a microphon
- the samples stored in the buffer are read successively at each reading pulse, the frequency of the reading pulses depending on the speed of the movable element (16, 45).
- the samples read are then converted into analog signals by a digital-to-analog converter and reproduced.
- the samples are stored in the sampling buffer at a speed inversely proportional to the speed of movement of the movable element (16 ; 45) and are read at a constant speed.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96922833A EP0880779A1 (en) | 1995-06-20 | 1996-06-19 | Digital processing device for audio signal |
AU63569/96A AU6356996A (en) | 1995-06-20 | 1996-06-19 | Digital processing device for audio signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH179995 | 1995-06-20 | ||
CH1799/95-0 | 1995-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997001168A1 true WO1997001168A1 (en) | 1997-01-09 |
Family
ID=4218878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/002637 WO1997001168A1 (en) | 1995-06-20 | 1996-06-19 | Digital processing device for audio signal |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0880779A1 (en) |
AU (1) | AU6356996A (en) |
WO (1) | WO1997001168A1 (en) |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29703145U1 (en) * | 1997-02-21 | 1997-04-24 | Ide International Design & Ent | Device for generating scratch effects |
WO1997033282A1 (en) * | 1996-03-08 | 1997-09-12 | Ralf Pretz | Device and method of controlling the playback speed of a compact disc (cd) inserted into a cd player |
EP0867879A2 (en) * | 1997-03-29 | 1998-09-30 | Deutsche Thomson-Brandt Gmbh | Device for CD reproduction with variable speed or direction |
EP0973162A2 (en) * | 1998-07-09 | 2000-01-19 | Pioneer Electronic Corporation | System for reproducing information recorded on a disc |
WO2000021090A1 (en) * | 1998-10-07 | 2000-04-13 | Philippe Borieux | Method and device for manually controlling the direction and speed for data reading with a control disc |
FR2784492A1 (en) * | 1998-10-07 | 2000-04-14 | Borieux Philippe | Method for manually controlling direction and speed of disk to produce discotheque type 'scratch' effect by using dynamoelectric detection module that generates control signal in response variation of speed and direction of disk |
EP0999553A1 (en) * | 1998-11-02 | 2000-05-10 | Alessandro Cortellesi | Portable apparatus for storing, handling and listening to pieces of music |
FR2797518A1 (en) * | 1999-08-09 | 2001-02-16 | Borieux Philippe Christophe Th | Method for manually controlling direction and speed of disk to produce discotheque type 'scratch' effect by using dynamoelectric detection module that generates control signal in response variation of speed and direction of disk |
NL1014526C2 (en) * | 2000-02-29 | 2001-08-30 | N2It Dev B V I O | Disc to be used in a signal processing device as well as such a device. |
FR2805634A1 (en) * | 2000-02-28 | 2001-08-31 | Laurent Denis Fournier | Device for producing vinyl disk rotation variation 'scratch effects' while using digital source of sound; reads data into buffer that is then transformed by control program producing sound output transformed into audio format |
GB2361348A (en) * | 2000-02-23 | 2001-10-17 | Simon Andrew Ford | Record deck interface for DJ scratching |
GB2367181A (en) * | 2000-09-20 | 2002-03-27 | Hewlett Packard Co | Visual display of audio data |
DE10101473A1 (en) * | 2001-01-13 | 2002-07-25 | Native Instruments Software Synthesis Gmbh | Method for recognizing tempo and phases in a piece of music in digital format approximates tempo and phase by statistical evaluation of time gaps in rhythm-related beat information and by clock pulses in audio data. |
US6461239B1 (en) * | 1997-09-17 | 2002-10-08 | Konami Co., Ltd. | Music action game machine, performance operation instructing system for music action game and storage device readable by computer |
US6469974B1 (en) * | 1999-01-14 | 2002-10-22 | Vestax Corporation | Record player |
EP1258878A2 (en) * | 2001-05-17 | 2002-11-20 | Pioneer Corporation | Rotational operation mechanism and music playback apparatus using the mechanism |
EP1260979A2 (en) * | 2001-05-22 | 2002-11-27 | Pioneer Corporation | Information playback apparatus |
EP1260978A2 (en) * | 2001-05-21 | 2002-11-27 | Pioneer Corporation | Information playback apparatus |
DE10153673A1 (en) * | 2001-06-18 | 2003-01-02 | Native Instruments Software Synthesis Gmbh | Automatic generation of musical scratch effects |
GB2378805A (en) * | 2001-08-15 | 2003-02-19 | Hanpin Electron Co Ltd | Digital and analog audio signal apparatus |
GB2378806A (en) * | 2001-08-15 | 2003-02-19 | Hanpin Electron Co Ltd | Digital audio signal apparatus |
WO2003015090A1 (en) * | 2001-08-07 | 2003-02-20 | Kent Justin A | System for converting turntable motion to midi data |
GB2379318A (en) * | 2001-08-31 | 2003-03-05 | Hanpin Electron Co Ltd | Digital audio signal apparatus having a touch sensitive analog record |
WO2003044789A1 (en) * | 2001-11-23 | 2003-05-30 | Pascal Otalora | Device for feedback control of a digital audio apparatus, from a monitoring record turntable support |
US6618329B2 (en) * | 2001-08-28 | 2003-09-09 | Hanpin Electron Co., Ltd. | Digital audio signal player having a simulated analogue record |
GB2388243A (en) * | 2002-05-01 | 2003-11-05 | Hanpin Electron Co Ltd | Digital audio signal player having a simulated analogue record |
GB2388462A (en) * | 2002-05-07 | 2003-11-12 | Hanpin Electron Co Ltd | Digital audio signal player having a stimulated analogue record |
GB2388461A (en) * | 2002-05-07 | 2003-11-12 | Hanpin Electron Co Ltd | Digital audio signal player having simulated analogue record |
EP1367579A2 (en) * | 2002-05-28 | 2003-12-03 | Denon, Ltd. | Optical disk reproducing apparatus |
GB2392773A (en) * | 2002-09-03 | 2004-03-10 | Kenneth John Bagnall | Digital turntable music deck |
GB2396246A (en) * | 2002-12-10 | 2004-06-16 | Adrian Jason Ford | Turntable apparatus |
US6813577B2 (en) | 2001-04-27 | 2004-11-02 | Pioneer Corporation | Speaker detecting device |
GB2405740A (en) * | 2003-09-03 | 2005-03-09 | Hanpin Electron Co Ltd | Manually controlled dual audio signal player for analogue record and CD |
GB2405686A (en) * | 2003-09-03 | 2005-03-09 | Steven Jukes | Record deck interface for the manipulation of digital audio files |
US7041892B2 (en) | 2001-06-18 | 2006-05-09 | Native Instruments Software Synthesis Gmbh | Automatic generation of musical scratching effects |
GB2429574A (en) * | 2005-08-26 | 2007-02-28 | Hanpin Electron Co Ltd | Audio player with touch sensitive plate |
US7218578B2 (en) | 2003-09-30 | 2007-05-15 | D&M Holdings Inc. | Reproducing apparatus, operating apparatus for reproducing and reproducing method therefor |
US7257072B2 (en) * | 2002-06-24 | 2007-08-14 | Teac Corporation | Digital audio data reproducing system |
EP1844422A2 (en) * | 2005-02-01 | 2007-10-17 | Charles A. Spencer | Method and system for synchronizing information specific to a location on a surface with an external source |
US7489598B2 (en) | 2003-09-30 | 2009-02-10 | D&M Holdings Inc. | Optical disc reproducing apparatus |
US7615702B2 (en) | 2001-01-13 | 2009-11-10 | Native Instruments Software Synthesis Gmbh | Automatic recognition and matching of tempo and phase of pieces of music, and an interactive music player based thereon |
US8675454B2 (en) | 2010-12-17 | 2014-03-18 | Native Instruments Gmbh | Apparatus and method for signal processing |
US8729375B1 (en) * | 2013-06-24 | 2014-05-20 | Synth Table Partners | Platter based electronic musical instrument |
US10593313B1 (en) | 2019-02-14 | 2020-03-17 | Peter Bacigalupo | Platter based electronic musical instrument |
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- 1996-06-19 WO PCT/EP1996/002637 patent/WO1997001168A1/en active Application Filing
- 1996-06-19 EP EP96922833A patent/EP0880779A1/en not_active Withdrawn
- 1996-06-19 AU AU63569/96A patent/AU6356996A/en not_active Abandoned
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EP0577104A1 (en) * | 1992-07-01 | 1994-01-05 | Rockwell International Corporation | High resolution optical hybrid digital-analog position encoder |
JPH05216476A (en) * | 1992-09-09 | 1993-08-27 | Yamaha Corp | Effect sound generation device |
US5512704A (en) * | 1992-10-12 | 1996-04-30 | Yamaha Corporation | Electronic sound signal generator achieving scratch sound effect using scratch readout from waveform memory |
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See also references of EP0880779A1 * |
Cited By (81)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997033282A1 (en) * | 1996-03-08 | 1997-09-12 | Ralf Pretz | Device and method of controlling the playback speed of a compact disc (cd) inserted into a cd player |
DE29703145U1 (en) * | 1997-02-21 | 1997-04-24 | Ide International Design & Ent | Device for generating scratch effects |
EP0867879A3 (en) * | 1997-03-29 | 2001-06-13 | Deutsche Thomson-Brandt Gmbh | Device for CD reproduction with variable speed or direction |
EP0867879A2 (en) * | 1997-03-29 | 1998-09-30 | Deutsche Thomson-Brandt Gmbh | Device for CD reproduction with variable speed or direction |
CN1111860C (en) * | 1997-03-29 | 2003-06-18 | 德国汤姆逊-布朗特公司 | CD transcriber with variable velocity or direction |
US6461239B1 (en) * | 1997-09-17 | 2002-10-08 | Konami Co., Ltd. | Music action game machine, performance operation instructing system for music action game and storage device readable by computer |
EP0973162A2 (en) * | 1998-07-09 | 2000-01-19 | Pioneer Electronic Corporation | System for reproducing information recorded on a disc |
EP0973162A3 (en) * | 1998-07-09 | 2000-05-17 | Pioneer Electronic Corporation | System for reproducing information recorded on a disc |
FR2784492A1 (en) * | 1998-10-07 | 2000-04-14 | Borieux Philippe | Method for manually controlling direction and speed of disk to produce discotheque type 'scratch' effect by using dynamoelectric detection module that generates control signal in response variation of speed and direction of disk |
WO2000021090A1 (en) * | 1998-10-07 | 2000-04-13 | Philippe Borieux | Method and device for manually controlling the direction and speed for data reading with a control disc |
EP0999553A1 (en) * | 1998-11-02 | 2000-05-10 | Alessandro Cortellesi | Portable apparatus for storing, handling and listening to pieces of music |
US6469974B1 (en) * | 1999-01-14 | 2002-10-22 | Vestax Corporation | Record player |
FR2797518A1 (en) * | 1999-08-09 | 2001-02-16 | Borieux Philippe Christophe Th | Method for manually controlling direction and speed of disk to produce discotheque type 'scratch' effect by using dynamoelectric detection module that generates control signal in response variation of speed and direction of disk |
GB2361348A (en) * | 2000-02-23 | 2001-10-17 | Simon Andrew Ford | Record deck interface for DJ scratching |
FR2805634A1 (en) * | 2000-02-28 | 2001-08-31 | Laurent Denis Fournier | Device for producing vinyl disk rotation variation 'scratch effects' while using digital source of sound; reads data into buffer that is then transformed by control program producing sound output transformed into audio format |
US8802954B2 (en) | 2000-02-29 | 2014-08-12 | N2It Holding B.V. | System and method for controlling audio source |
WO2001065559A1 (en) * | 2000-02-29 | 2001-09-07 | N2It Development B.V. I.O. | Disc for use in an apparatus for signal processing, and such an apparatus |
US7012184B2 (en) | 2000-02-29 | 2006-03-14 | N2It Holding B.V. | Disc for use in an apparatus for signal processing and such an apparatus |
NL1014526C2 (en) * | 2000-02-29 | 2001-08-30 | N2It Dev B V I O | Disc to be used in a signal processing device as well as such a device. |
JP2011248995A (en) * | 2000-02-29 | 2011-12-08 | N2It Holding Bv | Signal processor |
US8097800B2 (en) | 2000-02-29 | 2012-01-17 | N2It Holding B.V. | Method for controlling a digital audio source |
JP2003525510A (en) * | 2000-02-29 | 2003-08-26 | エヌ2アイティー ディベロップメント ビー.ブイ.アイ.オー. | Disk and signal processing device used in signal processing device |
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US8680385B2 (en) | 2000-02-29 | 2014-03-25 | N2It Holding B.V. | System and method for controlling a digital audio source |
US8502058B2 (en) | 2000-02-29 | 2013-08-06 | N2It Holding B.V. | System and method for controlling audio equipment |
US8217252B2 (en) | 2000-02-29 | 2012-07-10 | N2It Holding B.V. | System and method for controlling play of digital audio equipment |
US8198524B2 (en) | 2000-02-29 | 2012-06-12 | N2It Holding B.V. | Apparatus for controlling a digital source |
GB2367181B (en) * | 2000-09-20 | 2004-06-16 | Hewlett Packard Co | Data display |
US6897868B2 (en) | 2000-09-20 | 2005-05-24 | Hewlett-Packard Development Company, L.P. | Visual representation of audio content |
GB2367181A (en) * | 2000-09-20 | 2002-03-27 | Hewlett Packard Co | Visual display of audio data |
DE10101473B4 (en) * | 2001-01-13 | 2007-03-08 | Native Instruments Software Synthesis Gmbh | Automatic detection and adjustment of tempo and phase of pieces of music and interactive music players based on them |
US7615702B2 (en) | 2001-01-13 | 2009-11-10 | Native Instruments Software Synthesis Gmbh | Automatic recognition and matching of tempo and phase of pieces of music, and an interactive music player based thereon |
DE10101473A1 (en) * | 2001-01-13 | 2002-07-25 | Native Instruments Software Synthesis Gmbh | Method for recognizing tempo and phases in a piece of music in digital format approximates tempo and phase by statistical evaluation of time gaps in rhythm-related beat information and by clock pulses in audio data. |
US6813577B2 (en) | 2001-04-27 | 2004-11-02 | Pioneer Corporation | Speaker detecting device |
US6864879B2 (en) | 2001-05-17 | 2005-03-08 | Pioneer Corporation | Rotational operation mechanism and music playback apparatus using the mechanism |
EP1258878A3 (en) * | 2001-05-17 | 2003-05-21 | Pioneer Corporation | Rotational operation mechanism and music playback apparatus using the mechanism |
EP1258878A2 (en) * | 2001-05-17 | 2002-11-20 | Pioneer Corporation | Rotational operation mechanism and music playback apparatus using the mechanism |
EP1260978A3 (en) * | 2001-05-21 | 2003-10-22 | Pioneer Corporation | Information playback apparatus |
US7394731B2 (en) | 2001-05-21 | 2008-07-01 | Pioneer Corporation | Information playback apparatus |
US7042814B2 (en) | 2001-05-21 | 2006-05-09 | Pioneer Corporation | Information playback apparatus |
EP1260978A2 (en) * | 2001-05-21 | 2002-11-27 | Pioneer Corporation | Information playback apparatus |
US6751167B2 (en) | 2001-05-22 | 2004-06-15 | Pioneer Corporation | Information playback apparatus |
EP1260979A2 (en) * | 2001-05-22 | 2002-11-27 | Pioneer Corporation | Information playback apparatus |
EP1260979A3 (en) * | 2001-05-22 | 2003-04-23 | Pioneer Corporation | Information playback apparatus |
US7041892B2 (en) | 2001-06-18 | 2006-05-09 | Native Instruments Software Synthesis Gmbh | Automatic generation of musical scratching effects |
DE10153673A1 (en) * | 2001-06-18 | 2003-01-02 | Native Instruments Software Synthesis Gmbh | Automatic generation of musical scratch effects |
DE10153673B4 (en) * | 2001-06-18 | 2005-04-07 | Native Instruments Software Synthesis Gmbh | Automatic generation of musical scratch effects |
US7087830B2 (en) | 2001-08-07 | 2006-08-08 | Justin A. Kent | System for converting turntable motion to MIDI data |
WO2003015090A1 (en) * | 2001-08-07 | 2003-02-20 | Kent Justin A | System for converting turntable motion to midi data |
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EP0880779A1 (en) | 1998-12-02 |
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