FR2639458B1 - Appareil permettant de produire, d'enregistrer ou de reproduire des donnees de source sonore et procede associe de codage de compression de donnees de source sonore - Google Patents

Appareil permettant de produire, d'enregistrer ou de reproduire des donnees de source sonore et procede associe de codage de compression de donnees de source sonore

Info

Publication number
FR2639458B1
FR2639458B1 FR8915141A FR8915141A FR2639458B1 FR 2639458 B1 FR2639458 B1 FR 2639458B1 FR 8915141 A FR8915141 A FR 8915141A FR 8915141 A FR8915141 A FR 8915141A FR 2639458 B1 FR2639458 B1 FR 2639458B1
Authority
FR
France
Prior art keywords
sound source
source data
recording
generating
associated method
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.)
Expired - Lifetime
Application number
FR8915141A
Other languages
English (en)
Other versions
FR2639458A1 (fr
Inventor
Makoto Furuhashi Masakazu Suzuoki Et Koji Kageyama Ken Kutaragi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP63292933A external-priority patent/JP2712421B2/ja
Priority claimed from JP63292934A external-priority patent/JP2671456B2/ja
Priority claimed from JP63292931A external-priority patent/JPH02137896A/ja
Priority claimed from JP63292935A external-priority patent/JP2712422B2/ja
Priority claimed from JP63301544A external-priority patent/JP2674161B2/ja
Priority claimed from JP2556489A external-priority patent/JPH02206216A/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2639458A1 publication Critical patent/FR2639458A1/fr
Application granted granted Critical
Publication of FR2639458B1 publication Critical patent/FR2639458B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • 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
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
    • G10H1/057—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits
    • 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
    • G10H5/00—Instruments in which the tones are generated by means of electronic generators
    • G10H5/005—Voice controlled instruments
    • 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
    • G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
    • G10H7/08—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • 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
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/066—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for pitch analysis as part of wider processing for musical purposes, e.g. transcription, musical performance evaluation; Pitch recognition, e.g. in polyphonic sounds; Estimation or use of missing fundamental
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
    • G10H2250/105—Comb filters
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
    • G10H2250/111—Impulse response, i.e. filters defined or specifed by their temporal impulse response features, e.g. for echo or reverberation applications
    • G10H2250/121—IIR impulse
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
    • G10H2250/145—Convolution, e.g. of a music input signal with a desired impulse response to compute an output
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
    • G10H2250/215—Transforms, i.e. mathematical transforms into domains appropriate for musical signal processing, coding or compression
    • G10H2250/235—Fourier transform; Discrete Fourier Transform [DFT]; Fast Fourier Transform [FFT]
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/545—Aliasing, i.e. preventing, eliminating or deliberately using aliasing noise, distortions or artifacts in sampled or synthesised waveforms, e.g. by band limiting, oversampling or undersampling, respectively
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
    • G10H2250/601—Compressed representations of spectral envelopes, e.g. LPC [linear predictive coding], LAR [log area ratios], LSP [line spectral pairs], reflection coefficients
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/621—Waveform interpolation
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/631—Waveform resampling, i.e. sample rate conversion or sample depth conversion
    • 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
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/641—Waveform sampler, i.e. music samplers; Sampled music loop processing, wherein a loop is a sample of a performance that has been edited to repeat seamlessly without clicks or artifacts
FR8915141A 1988-11-19 1989-11-17 Appareil permettant de produire, d'enregistrer ou de reproduire des donnees de source sonore et procede associe de codage de compression de donnees de source sonore Expired - Lifetime FR2639458B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP63292933A JP2712421B2 (ja) 1988-11-19 1988-11-19 音源装置
JP63292934A JP2671456B2 (ja) 1988-11-19 1988-11-19 音源装置
JP63292931A JPH02137896A (ja) 1988-11-19 1988-11-19 音源データの生成方法
JP63292935A JP2712422B2 (ja) 1988-11-19 1988-11-19 連続音源データ再生装置
JP63301544A JP2674161B2 (ja) 1988-11-29 1988-11-29 音源データ圧縮符号化方法
JP2556489A JPH02206216A (ja) 1989-02-03 1989-02-03 補間フィルタ

Publications (2)

Publication Number Publication Date
FR2639458A1 FR2639458A1 (fr) 1990-05-25
FR2639458B1 true FR2639458B1 (fr) 1994-02-25

Family

ID=27549248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8915141A Expired - Lifetime FR2639458B1 (fr) 1988-11-19 1989-11-17 Appareil permettant de produire, d'enregistrer ou de reproduire des donnees de source sonore et procede associe de codage de compression de donnees de source sonore

Country Status (4)

Country Link
US (1) US5086475A (fr)
KR (1) KR0164590B1 (fr)
FR (1) FR2639458B1 (fr)
GB (1) GB2227859B (fr)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262582A (en) * 1986-11-10 1993-11-16 Terumo Kabushiki Kaisha Musical tone generating apparatus for electronic musical instrument
GB2247981B (en) * 1988-11-19 1993-06-23 Sony Corp Method for producing a digital signal
GB2249698B (en) * 1988-11-19 1993-06-23 Sony Corp Digital sgnal compression method
GB2230132B (en) * 1988-11-19 1993-06-23 Sony Corp Signal recording method
US5218710A (en) * 1989-06-19 1993-06-08 Pioneer Electronic Corporation Audio signal processing system having independent and distinct data buses for concurrently transferring audio signal data to provide acoustic control
JP3092808B2 (ja) * 1989-12-20 2000-09-25 カシオ計算機株式会社 電子弦楽器
JPH0413193A (ja) * 1990-05-02 1992-01-17 Kawai Musical Instr Mfg Co Ltd 楽音発生装置
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
US5196639A (en) * 1990-12-20 1993-03-23 Gulbransen, Inc. Method and apparatus for producing an electronic representation of a musical sound using coerced harmonics
JP2682257B2 (ja) * 1991-03-29 1997-11-26 ヤマハ株式会社 楽音合成装置
JP2680483B2 (ja) * 1991-05-02 1997-11-19 株式会社東芝 デジタル信号処理装置
FR2678103B1 (fr) * 1991-06-18 1996-10-25 Sextant Avionique Procede de synthese vocale.
JP3151001B2 (ja) * 1991-06-28 2001-04-03 パイオニア株式会社 倍音発生器
US5412152A (en) * 1991-10-18 1995-05-02 Yamaha Corporation Device for forming tone source data using analyzed parameters
US5248845A (en) * 1992-03-20 1993-09-28 E-Mu Systems, Inc. Digital sampling instrument
JP2739669B2 (ja) * 1992-08-24 1998-04-15 株式会社河合楽器製作所 楽音発生装置
JPH07121182A (ja) * 1993-10-27 1995-05-12 Sony Corp 割り込み情報発生装置及び音声情報処理装置
US5363443A (en) * 1993-12-08 1994-11-08 At&T Bell Laboratories Differing frequency sine wave generation from a look-up table
JP3346017B2 (ja) * 1994-02-25 2002-11-18 株式会社デンソー 物理量検出装置
JP3528258B2 (ja) * 1994-08-23 2004-05-17 ソニー株式会社 符号化音声信号の復号化方法及び装置
US5956685A (en) * 1994-09-12 1999-09-21 Arcadia, Inc. Sound characteristic converter, sound-label association apparatus and method therefor
JP3625880B2 (ja) * 1994-12-02 2005-03-02 株式会社ソニー・コンピュータエンタテインメント 音源装置
CN1095579C (zh) * 1994-12-02 2002-12-04 索尼计算机娱乐公司 声源数据处理设备和方法
JP3046213B2 (ja) * 1995-02-02 2000-05-29 三菱電機株式会社 サブバンド・オーディオ信号合成装置
JPH0916558A (ja) * 1995-04-28 1997-01-17 Sony Corp デジタル信号処理装置
DE69619587T2 (de) 1995-05-19 2002-10-31 Yamaha Corp Verfahren und Vorrichtung zur Tonerzeugung
CN1591564B (zh) * 1995-06-19 2010-10-06 雅马哈株式会社 形成乐音波形的方法和装置
US5832442A (en) * 1995-06-23 1998-11-03 Electronics Research & Service Organization High-effeciency algorithms using minimum mean absolute error splicing for pitch and rate modification of audio signals
JP3252706B2 (ja) * 1995-07-21 2002-02-04 ソニー株式会社 映像信号再生方法及び装置、並びに信号伝送方法及び装置
JP2970526B2 (ja) * 1996-01-17 1999-11-02 ヤマハ株式会社 コンピュータソフトウェアを用いた音源システム
JPH09265731A (ja) 1996-01-24 1997-10-07 Sony Corp 音声再生装置及び方法、音声録音装置及び方法、音声録音再生システム、音声データの転送方法、情報受信装置、記録媒体
ID15832A (id) * 1996-02-12 1997-08-14 Philips Electronics Nv Pesawat pendikte genggam
DE19630330C2 (de) * 1996-07-26 1998-11-19 Sgs Thomson Microelectronics Audiosignalprozessor
US5773741A (en) * 1996-09-19 1998-06-30 Sunhawk Corporation, Inc. Method and apparatus for nonsequential storage of and access to digital musical score and performance information
US5889860A (en) * 1996-11-08 1999-03-30 Sunhawk Corporation, Inc. Encryption system with transaction coded decryption key
US5789689A (en) * 1997-01-17 1998-08-04 Doidic; Michel Tube modeling programmable digital guitar amplification system
JP3389460B2 (ja) * 1997-07-18 2003-03-24 日本プレシジョン・サーキッツ株式会社 デジタルデータの処理回路及びデジタルデータの処理方法
US5978757A (en) * 1997-10-02 1999-11-02 Lucent Technologies, Inc. Post storage message compaction
JPH11282684A (ja) * 1998-03-27 1999-10-15 Canon Inc 画像処理装置、画像処理装置の制御方法、および記憶媒体
TW457472B (en) * 1998-11-25 2001-10-01 Yamaha Corp Apparatus and method for reproducing waveform
US6574685B1 (en) * 1999-04-07 2003-06-03 Stephen R. Schwartz Sampling tuning system including replay of a selected data stream
JP3450237B2 (ja) * 1999-10-06 2003-09-22 株式会社アルカディア 音声合成装置および方法
JP2004527005A (ja) * 2001-05-16 2004-09-02 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 波形テーブル型シンセサイザにおいてエリアシングを除去するための方法
DE60122296T2 (de) * 2001-05-28 2007-08-30 Texas Instruments Inc., Dallas Programmierbarer Melodienerzeuger
JP3878485B2 (ja) * 2002-01-11 2007-02-07 ローランド株式会社 波形再生装置
US20030220801A1 (en) * 2002-05-22 2003-11-27 Spurrier Thomas E. Audio compression method and apparatus
US7378586B2 (en) * 2002-10-01 2008-05-27 Yamaha Corporation Compressed data structure and apparatus and method related thereto
US7970606B2 (en) 2002-11-13 2011-06-28 Digital Voice Systems, Inc. Interoperable vocoder
US7634399B2 (en) * 2003-01-30 2009-12-15 Digital Voice Systems, Inc. Voice transcoder
US7155386B2 (en) * 2003-03-15 2006-12-26 Mindspeed Technologies, Inc. Adaptive correlation window for open-loop pitch
US8359197B2 (en) * 2003-04-01 2013-01-22 Digital Voice Systems, Inc. Half-rate vocoder
US6967277B2 (en) * 2003-08-12 2005-11-22 William Robert Querfurth Audio tone controller system, method, and apparatus
US7565213B2 (en) * 2004-05-07 2009-07-21 Gracenote, Inc. Device and method for analyzing an information signal
JP2008518248A (ja) * 2004-10-22 2008-05-29 エルジー エレクトロニクス インコーポレイテッド Ｍｉｄｉファイルを再生する装置及び方法
JP4256332B2 (ja) * 2004-11-25 2009-04-22 株式会社ソニー・コンピュータエンタテインメント 音声データエンコード装置および音声データデコード装置
US8476518B2 (en) * 2004-11-30 2013-07-02 Stmicroelectronics Asia Pacific Pte. Ltd. System and method for generating audio wavetables
MX2007012187A (es) * 2005-04-01 2007-12-11 Qualcomm Inc Sistemas, metodos y aparatos para deformacion en tiempo de banda alta.
TWI324336B (en) 2005-04-22 2010-05-01 Qualcomm Inc Method of signal processing and apparatus for gain factor smoothing
KR100697527B1 (ko) * 2005-05-16 2007-03-20 엘지전자 주식회사 웨이브 테이블 구성 장치 및 웨이브 테이블 음원 샘플의새로운 루프 구간을 검색하는 방법
US8311840B2 (en) * 2005-06-28 2012-11-13 Qnx Software Systems Limited Frequency extension of harmonic signals
KR100724736B1 (ko) * 2006-01-26 2007-06-04 삼성전자주식회사 스펙트럴 자기상관치를 이용한 피치 검출 방법 및 피치검출 장치
US8036886B2 (en) 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
US7912729B2 (en) 2007-02-23 2011-03-22 Qnx Software Systems Co. High-frequency bandwidth extension in the time domain
JP4475323B2 (ja) * 2007-12-14 2010-06-09 カシオ計算機株式会社 楽音発生装置、及びプログラム
US20100217922A1 (en) * 2008-07-24 2010-08-26 Masahiro Nakanishi Access module, storage module, musical sound generating system and data writing module
US8098451B2 (en) * 2008-07-28 2012-01-17 Agere Systems Inc. Systems and methods for variable fly height measurement
JP5534388B2 (ja) * 2009-03-23 2014-06-25 ヤマハ株式会社 楽音生成装置
US8300349B2 (en) 2010-08-05 2012-10-30 Lsi Corporation Systems and methods for format efficient calibration for servo data based harmonics calculation
US8325432B2 (en) 2010-08-05 2012-12-04 Lsi Corporation Systems and methods for servo data based harmonics calculation
US8345373B2 (en) 2010-08-16 2013-01-01 Lsi Corporation Systems and methods for phase offset based spectral aliasing compensation
US8605381B2 (en) 2010-09-03 2013-12-10 Lsi Corporation Systems and methods for phase compensated harmonic sensing in fly height control
JP5789993B2 (ja) * 2011-01-20 2015-10-07 ヤマハ株式会社 楽音信号発生装置
US8526133B2 (en) 2011-07-19 2013-09-03 Lsi Corporation Systems and methods for user data based fly height calculation
US9686594B2 (en) * 2011-11-11 2017-06-20 Avago Technologies General Ip (Singapore) Pte. Ltd. Spectrum analysis and plant diagnostic tool for communications systems
US8854756B1 (en) 2013-05-10 2014-10-07 Lsi Corporation Systems and methods for mitigating data interference in a contact signal
JP6155950B2 (ja) * 2013-08-12 2017-07-05 カシオ計算機株式会社 サンプリング装置、サンプリング方法及びプログラム
US8937781B1 (en) 2013-12-16 2015-01-20 Lsi Corporation Constant false alarm resonance detector
US9129632B1 (en) 2014-10-27 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Loop pulse estimation-based fly height detector
JP7375317B2 (ja) * 2019-03-25 2023-11-08 カシオ計算機株式会社 フィルタ効果付与装置、電子楽器及び電子楽器の制御方法
US11270714B2 (en) 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816664A (en) * 1971-09-28 1974-06-11 R Koch Signal compression and expansion apparatus with means for preserving or varying pitch
GB1404769A (en) * 1971-12-08 1975-09-03 British Aircraft Corp Ltd Waveform synthesisers
GB1404768A (en) * 1971-12-08 1975-09-03 British Aircraft Corp Ltd Waveform generators
US4130729A (en) * 1977-09-19 1978-12-19 Scitronix Corporation Compressed speech system
US4271500A (en) * 1978-02-13 1981-06-02 Fjaellbrant T Device for converting a non-uniformly sampled signal with short-time spectrum to a uniformly sampled signal
US4205575A (en) * 1978-05-19 1980-06-03 The Wurlitzer Company Binary interpolator for electronic musical instrument
US4626827A (en) * 1982-03-16 1986-12-02 Victor Company Of Japan, Limited Method and system for data compression by variable frequency sampling
US4509185A (en) * 1982-08-09 1985-04-02 Grunberg Robert Michael Time domain audio panner
US4550425A (en) * 1982-09-20 1985-10-29 Sperry Corporation Speech sampling and companding device
JPS6093494A (ja) * 1983-10-27 1985-05-25 株式会社河合楽器製作所 電子楽器
JPS6093495A (ja) * 1983-10-27 1985-05-25 株式会社河合楽器製作所 電子楽器
US4633749A (en) * 1984-01-12 1987-01-06 Nippon Gakki Seizo Kabushiki Kaisha Tone signal generation device for an electronic musical instrument
JPS6145297A (ja) * 1984-08-09 1986-03-05 カシオ計算機株式会社 電子楽器
US4781096A (en) * 1984-10-09 1988-11-01 Nippon Gakki Seizo Kabushiki Kaisha Musical tone generating apparatus
JPH0631968B2 (ja) * 1984-10-30 1994-04-27 ヤマハ株式会社 楽音信号発生装置
US4602545A (en) * 1985-01-24 1986-07-29 Cbs Inc. Digital signal generator for musical notes
EP0199192B1 (fr) * 1985-04-12 1995-09-13 Yamaha Corporation Dispositif générateur de ton
JPH0631986B2 (ja) * 1985-10-15 1994-04-27 ヤマハ株式会社 楽音発生装置
JPH0631989B2 (ja) * 1985-11-14 1994-04-27 ロ−ランド株式会社 電子楽器の波形発生装置
US4916996A (en) * 1986-04-15 1990-04-17 Yamaha Corp. Musical tone generating apparatus with reduced data storage requirements
US4907484A (en) * 1986-11-02 1990-03-13 Yamaha Corporation Tone signal processing device using a digital filter
JPH0754432B2 (ja) * 1986-12-30 1995-06-07 ヤマハ株式会社 楽音信号発生装置

Also Published As

Publication number Publication date
GB2227859A (en) 1990-08-08
US5086475A (en) 1992-02-04
GB2227859B (en) 1993-03-24
KR900008437A (ko) 1990-06-04
FR2639458A1 (fr) 1990-05-25
KR0164590B1 (ko) 1999-03-20
GB8925891D0 (en) 1990-01-04

Similar Documents

Publication Publication Date Title
FR2639458B1 (fr) Appareil permettant de produire, d'enregistrer ou de reproduire des donnees de source sonore et procede associe de codage de compression de donnees de source sonore
FR2725330B1 (fr) Procede et appareil de codage et de decodage de donnees
DE69021227D1 (de) Daten-Aufzeichnungs- und -Wiedergabegerät.
DE69636842D1 (de) Datenaufzeichnungsverfahren und -Einrichtung, Aufzeichnungsmedium, Datenwiedergabeverfahren und Einrichtung
DE68929129T2 (de) Verfahren zur Informationsaufzeichnung und -wiedergabe, Vorrichtung dazu und Aufzeichnungsmedium
DE69638266D1 (de) Datenaufzeichnungs-/-wiedergabeverfahren und Datenaufzeichnungs-/-wiedergabegerät
DE69636844D1 (de) Plattenförmiges Aufzeichnungsmedium, Aufzeichnungs- und Wiedergabegerät
FR2505594B1 (fr) Appareil d'enregistrement et de reproduction de signaux d'information
DE69426754D1 (de) Informationsaufzeichnungs- und -wiedergabegerät mit Prozessor, Informationsaufzeichnungs- und -wiedergabeverfahren
FR2535885B1 (fr) Procede et appareil pour dejouer le copiage non autorise de donnees enregistrees
FR2476420B1 (fr) Appareil de reproduction de signaux d'information
DE69626362T2 (de) Datenaufzeichnungs- und -wiedergabegerät sowie -verfahren
FR2635598B1 (fr) Appareil et procede de transmission de donnees pour support d'emmagasinage de donnees portatif
DE69123913T2 (de) Vorrichtung zum Aufzeichnen und Wiedergeben von Video- und Audiodaten
DE69021140T2 (de) Vorrichtung zum Aufzeichnen und/oder Wiedergeben von Video- und Audiosignalen.
DE68920838T2 (de) Vorrichtung zum Wiedergeben von digitalen Audio- und Videodaten.
GB9009886D0 (en) Method and apparatus for recording and/or reproducing sound
FR2518343B1 (fr) Appareil d'enregistrement et de reproduction de signaux d'image et de son
DE68915031D1 (de) Vorrichtung zum Abspielen von Aufzeichnungsträgern.
FR2613113B1 (fr) Appareil d'enregistrement et de lecture magnetique
DE68916295T2 (de) Vorrichtung zur magnetischen Aufzeichnung und Wiedergabe.
FR2574974B1 (fr) Procede et appareil d'enregistrement et de reproduction de signaux numeriques codes
DE69617774T2 (de) Vorrichtung zur Aufzeichnung und Wiedergabe von Daten
DE68911796D1 (de) Vorrichtung zur Zugriffsteuerung bei einem Informationsaufzeichnungs- und -wiedergabegerät.
FR2646939B1 (fr) Appareil de verification de donnees fournies en double

Legal Events

Date Code Title Description
TP Transmission of property