HK1019109A1 - Wavetable synthesizer and operating method using a variable sampling rate approximation - Google Patents

Wavetable synthesizer and operating method using a variable sampling rate approximation

Info

Publication number
HK1019109A1
HK1019109A1 HK99104164A HK99104164A HK1019109A1 HK 1019109 A1 HK1019109 A1 HK 1019109A1 HK 99104164 A HK99104164 A HK 99104164A HK 99104164 A HK99104164 A HK 99104164A HK 1019109 A1 HK1019109 A1 HK 1019109A1
Authority
HK
Hong Kong
Prior art keywords
sampling rate
operating method
variable sampling
wavetable synthesizer
rate approximation
Prior art date
Application number
HK99104164A
Other languages
English (en)
Inventor
Michael Jenkins
Original Assignee
Cirrus Logic Inc
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
Application filed by Cirrus Logic Inc filed Critical Cirrus Logic Inc
Publication of HK1019109A1 publication Critical patent/HK1019109A1/xx

Links

Classifications

    • 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
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
    • G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
    • 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
    • G10H7/02—Instruments in which the tones are synthesised from a data store, e.g. computer organs in which amplitudes at successive sample points of a tone waveform are stored in one or more memories
    • 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 or playback speed
    • G10H2210/201—Vibrato, i.e. rapid, repetitive and smooth variation of amplitude, pitch or timbre within a note or chord
    • G10H2210/205—Amplitude vibrato, i.e. repetitive smooth loudness variation without pitch change or rapid repetition of the same note, bisbigliando, amplitude tremolo or tremulants
    • 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
    • G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
    • G10H2210/281—Reverberation or echo
    • 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
    • G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
    • G10H2210/295—Spatial effects, musical uses of multiple audio channels, e.g. stereo
    • G10H2210/305—Source positioning in a soundscape, e.g. instrument positioning on a virtual soundstage, stereo panning or related delay or reverberation changes; Changing the stereo width of a musical source
    • 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
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/011—Files or data streams containing coded musical information, e.g. for transmission
    • G10H2240/046—File format, i.e. specific or non-standard musical file format used in or adapted for electrophonic musical instruments, e.g. in wavetables
    • G10H2240/056—MIDI or other note-oriented file format
    • 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
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/121—Musical libraries, i.e. musical databases indexed by musical parameters, wavetables, indexing schemes using musical parameters, musical rule bases or knowledge bases, e.g. for automatic composing methods
    • G10H2240/145—Sound library, i.e. involving the specific use of a musical database as a sound bank or wavetable; indexing, interfacing, protocols or processing therefor
    • 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
    • G10H2250/061—Allpass 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
    • G10H2250/105—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 specified by their temporal impulse response features, e.g. for echo or reverberation applications
    • G10H2250/121—IIR impulse

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrophonic Musical Instruments (AREA)
HK99104164A 1996-09-13 1999-09-24 Wavetable synthesizer and operating method using a variable sampling rate approximation HK1019109A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/713,341 US5744739A (en) 1996-09-13 1996-09-13 Wavetable synthesizer and operating method using a variable sampling rate approximation
PCT/US1997/016140 WO1998011532A1 (en) 1996-09-13 1997-09-10 Wavetable synthesizer and operating method using a variable sampling rate approximation

Publications (1)

Publication Number Publication Date
HK1019109A1 true HK1019109A1 (en) 2000-01-21

Family

ID=24865760

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99104164A HK1019109A1 (en) 1996-09-13 1999-09-24 Wavetable synthesizer and operating method using a variable sampling rate approximation

Country Status (9)

Country Link
US (1) US5744739A (xx)
EP (1) EP0925576B1 (xx)
JP (1) JP2001500635A (xx)
KR (1) KR20010029507A (xx)
CN (1) CN1230275A (xx)
DE (1) DE69705627D1 (xx)
HK (1) HK1019109A1 (xx)
TW (1) TW374893B (xx)
WO (1) WO1998011532A1 (xx)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362409B1 (en) 1998-12-02 2002-03-26 Imms, Inc. Customizable software-based digital wavetable synthesizer
JPH1152950A (ja) * 1997-06-04 1999-02-26 Kawai Musical Instr Mfg Co Ltd 電子楽器
US6088461A (en) * 1997-09-26 2000-07-11 Crystal Semiconductor Corporation Dynamic volume control system
US6091824A (en) * 1997-09-26 2000-07-18 Crystal Semiconductor Corporation Reduced-memory early reflection and reverberation simulator and method
US7309829B1 (en) * 1998-05-15 2007-12-18 Ludwig Lester F Layered signal processing for individual and group output of multi-channel electronic musical instruments
US6610917B2 (en) * 1998-05-15 2003-08-26 Lester F. Ludwig Activity indication, external source, and processing loop provisions for driven vibrating-element environments
US6119091A (en) * 1998-06-26 2000-09-12 Lsi Logic Corporation DVD audio decoder having a direct access PCM FIFO
JP2001075565A (ja) 1999-09-07 2001-03-23 Roland Corp 電子楽器
JP2001125568A (ja) 1999-10-28 2001-05-11 Roland Corp 電子楽器
DE60122296T2 (de) * 2001-05-28 2007-08-30 Texas Instruments Inc., Dallas Programmierbarer Melodienerzeuger
JP3709817B2 (ja) * 2001-09-03 2005-10-26 ヤマハ株式会社 音声合成装置、方法、及びプログラム
US6426456B1 (en) * 2001-10-26 2002-07-30 Motorola, Inc. Method and apparatus for generating percussive sounds in embedded devices
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US6977508B2 (en) * 2003-03-31 2005-12-20 Radiodetection Limited Cable detection apparatus and method
TWI227010B (en) * 2003-05-23 2005-01-21 Mediatek Inc Wavetable audio synthesis system
US20050114136A1 (en) * 2003-11-26 2005-05-26 Hamalainen Matti S. Manipulating wavetable data for wavetable based sound synthesis
TWI252468B (en) * 2004-02-13 2006-04-01 Mediatek Inc Wavetable synthesis system with memory management according to data importance and method of the same
KR20050087368A (ko) * 2004-02-26 2005-08-31 엘지전자 주식회사 무선 단말기의 벨소리 처리 장치
EP1571647A1 (en) * 2004-02-26 2005-09-07 Lg Electronics Inc. Apparatus and method for processing bell sound
KR100694395B1 (ko) * 2004-03-02 2007-03-12 엘지전자 주식회사 웨이브 테이블 기반의 미디 합성 방법
US7171193B2 (en) * 2004-03-22 2007-01-30 The Hoffman Group Llc Telecommunications interruption and disconnection apparatus and methods
KR100636906B1 (ko) * 2004-03-22 2006-10-19 엘지전자 주식회사 미디 재생 장치 그 방법
JP4222250B2 (ja) * 2004-04-26 2009-02-12 ヤマハ株式会社 圧縮楽音データ再生装置
KR100689495B1 (ko) * 2004-12-14 2007-03-02 엘지전자 주식회사 Ｍｉｄｉ 재생 장치 및 방법
US20060155543A1 (en) * 2005-01-13 2006-07-13 Korg, Inc. Dynamic voice allocation in a vector processor based audio processor
US8013231B2 (en) * 2005-05-26 2011-09-06 Yamaha Corporation Sound signal expression mode determining apparatus method and program
JP4274152B2 (ja) * 2005-05-30 2009-06-03 ヤマハ株式会社 楽音合成装置
KR101146738B1 (ko) * 2008-12-10 2012-05-17 한국전자통신연구원 무선 인식 센서 태그 및 센서 데이터 저장 방법
JP2011242560A (ja) * 2010-05-18 2011-12-01 Yamaha Corp セッション端末及びネットワークセッションシステム
CN104901698A (zh) * 2015-04-02 2015-09-09 中北大学 多通道采样率可编程的采集记录模块
CN105869614B (zh) * 2016-03-29 2019-07-19 北京精奇互动科技有限公司 音频文件导出方法和装置
CN107749301B (zh) * 2017-09-18 2021-03-09 得理电子(上海)有限公司 一种音色样本重构方法及系统、存储介质及终端设备
US10224062B1 (en) 2018-02-02 2019-03-05 Microsoft Technology Licensing, Llc Sample rate conversion with pitch-based interpolation filters
CN111462764B (zh) * 2020-06-22 2020-09-25 腾讯科技（深圳）有限公司 音频编码方法、装置、计算机可读存储介质及设备

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52121313A (en) * 1976-04-06 1977-10-12 Nippon Gakki Seizo Kk Electronic musical instrument
US4227435A (en) * 1977-04-28 1980-10-14 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument
US4228403A (en) * 1977-06-17 1980-10-14 Nippon Gakki Seizo Kabushiki Kaisha Submultiple-related-frequency wave generator
US4184403A (en) * 1977-11-17 1980-01-22 Allen Organ Company Method and apparatus for introducing dynamic transient voices in an electronic musical instrument
US4201105A (en) * 1978-05-01 1980-05-06 Bell Telephone Laboratories, Incorporated Real time digital sound synthesizer
JPS5521041A (en) * 1978-07-31 1980-02-14 Nippon Musical Instruments Mfg Producing musical tone of electronic device and electronic musical device
USRE34913E (en) * 1979-08-31 1995-04-25 Yamaha Corporation Electronic musical instrument
JPS56138794A (en) * 1980-03-31 1981-10-29 Nippon Musical Instruments Mfg Method of generating music tone signal and device for generating music tone signal
JPS5748791A (en) * 1980-09-08 1982-03-20 Nippon Musical Instruments Mfg Electronic musical instrument
JPS5748792A (en) * 1980-09-08 1982-03-20 Nippon Musical Instruments Mfg Electronic musical instrument
US4633748A (en) * 1983-02-27 1987-01-06 Casio Computer Co., Ltd. Electronic musical instrument
JPS59168492A (ja) * 1983-03-16 1984-09-22 ヤマハ株式会社 楽音波形発生装置
JPS6083999A (ja) * 1983-10-14 1985-05-13 ヤマハ株式会社 楽音合成方法
JPH0789279B2 (ja) * 1985-10-21 1995-09-27 ヤマハ株式会社 楽音信号発生装置
US4748669A (en) * 1986-03-27 1988-05-31 Hughes Aircraft Company Stereo enhancement system
JP2581047B2 (ja) * 1986-10-24 1997-02-12 ヤマハ株式会社 楽音信号発生方法
US4841572A (en) * 1988-03-14 1989-06-20 Hughes Aircraft Company Stereo synthesizer
US5018429A (en) * 1988-04-07 1991-05-28 Casio Computer Co., Ltd. Waveform generating apparatus for an electronic musical instrument using filtered components of a waveform
US4866774A (en) * 1988-11-02 1989-09-12 Hughes Aircraft Company Stero enhancement and directivity servo
US5342990A (en) * 1990-01-05 1994-08-30 E-Mu Systems, Inc. Digital sampling instrument employing cache-memory
WO1991010987A1 (en) * 1990-01-18 1991-07-25 E-Mu Systems, Inc. Data compression of sound data
JP2775651B2 (ja) * 1990-05-14 1998-07-16 カシオ計算機株式会社 音階検出装置及びそれを用いた電子楽器
US5354947A (en) * 1991-05-08 1994-10-11 Yamaha Corporation Musical tone forming apparatus employing separable nonliner conversion apparatus
JP2727841B2 (ja) * 1992-01-20 1998-03-18 ヤマハ株式会社 楽音合成装置
JP3243821B2 (ja) * 1992-02-27 2002-01-07 ヤマハ株式会社 電子楽器
US5376752A (en) * 1993-02-10 1994-12-27 Korg, Inc. Open architecture music synthesizer with dynamic voice allocation
US5567901A (en) * 1995-01-18 1996-10-22 Ivl Technologies Ltd. Method and apparatus for changing the timbre and/or pitch of audio signals

Also Published As

Publication number Publication date
EP0925576A1 (en) 1999-06-30
JP2001500635A (ja) 2001-01-16
CN1230275A (zh) 1999-09-29
KR20010029507A (ko) 2001-04-06
WO1998011532A1 (en) 1998-03-19
EP0925576B1 (en) 2001-07-11
TW374893B (en) 1999-11-21
DE69705627D1 (de) 2001-08-16
US5744739A (en) 1998-04-28

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20050910