HK188396A - Tone signal generation device - Google Patents

Tone signal generation device

Info

Publication number
HK188396A
HK188396A HK188396A HK188396A HK188396A HK 188396 A HK188396 A HK 188396A HK 188396 A HK188396 A HK 188396A HK 188396 A HK188396 A HK 188396A HK 188396 A HK188396 A HK 188396A
Authority
HK
Hong Kong
Prior art keywords
signal generation
generation device
tone signal
tone
signal
Prior art date
Application number
HK188396A
Other languages
English (en)
Inventor
Katoh Mitsumi
Hayakawa Tokuji
Original Assignee
Yamaha 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 JP60077979A external-priority patent/JPS61236595A/ja
Priority claimed from JP60079361A external-priority patent/JPS61239298A/ja
Application filed by Yamaha Corp filed Critical Yamaha Corp
Publication of HK188396A publication Critical patent/HK188396A/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
    • 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
    • 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
    • G10H2250/621—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
HK188396A 1985-04-12 1996-10-10 Tone signal generation device HK188396A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60077979A JPS61236595A (ja) 1985-04-12 1985-04-12 楽音信号発生装置
JP60079361A JPS61239298A (ja) 1985-04-16 1985-04-16 楽音信号発生装置

Publications (1)

Publication Number Publication Date
HK188396A true HK188396A (en) 1996-10-18

Family

ID=26419032

Family Applications (1)

Application Number Title Priority Date Filing Date
HK188396A HK188396A (en) 1985-04-12 1996-10-10 Tone signal generation device

Country Status (4)

Country Link
US (1) US4719833A (xx)
EP (1) EP0199192B1 (xx)
DE (1) DE3650389T2 (xx)
HK (1) HK188396A (xx)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0778676B2 (ja) * 1986-02-28 1995-08-23 ヤマハ株式会社 楽音信号発生装置
US5200567A (en) * 1986-11-06 1993-04-06 Casio Computer Co., Ltd. Envelope generating apparatus
US5548080A (en) * 1986-11-06 1996-08-20 Casio Computer Co., Ltd. Apparatus for appoximating envelope data and for extracting envelope data from a signal
US4998281A (en) * 1987-08-20 1991-03-05 Casio Computer Co., Ltd. Effect addition apparatus
US5086475A (en) * 1988-11-19 1992-02-04 Sony Corporation Apparatus for generating, recording or reproducing sound source data
US5319151A (en) * 1988-12-29 1994-06-07 Casio Computer Co., Ltd. Data processing apparatus outputting waveform data in a certain interval
US4953437A (en) * 1989-01-17 1990-09-04 Gulbransen Incorporated Method and apparatus for digitally generating musical notes
US5451710A (en) * 1989-06-02 1995-09-19 Yamaha Corporation Waveform synthesizing apparatus
US5194681A (en) * 1989-09-22 1993-03-16 Yamaha Corporation Musical tone generating apparatus
US5340938A (en) * 1990-04-23 1994-08-23 Casio Computer Co., Ltd. Tone generation apparatus with selective assignment of one of tone generation processing modes to tone generation channels
US5200564A (en) * 1990-06-29 1993-04-06 Casio Computer Co., Ltd. Digital information processing apparatus with multiple CPUs
JPH0666748B2 (ja) * 1990-08-27 1994-08-24 ヤマハ株式会社 時分割データレジスタ
JP2623942B2 (ja) * 1990-09-05 1997-06-25 ヤマハ株式会社 楽音信号発生装置
GB9318524D0 (en) * 1993-09-07 1993-10-20 Ethymonics Ltd Tone generator
US5684260A (en) * 1994-09-09 1997-11-04 Texas Instruments Incorporated Apparatus and method for generation and synthesis of audio
US6047073A (en) * 1994-11-02 2000-04-04 Advanced Micro Devices, Inc. Digital wavetable audio synthesizer with delay-based effects processing
US6246774B1 (en) 1994-11-02 2001-06-12 Advanced Micro Devices, Inc. Wavetable audio synthesizer with multiple volume components and two modes of stereo positioning
US5742695A (en) * 1994-11-02 1998-04-21 Advanced Micro Devices, Inc. Wavetable audio synthesizer with waveform volume control for eliminating zipper noise
US6272465B1 (en) * 1994-11-02 2001-08-07 Legerity, Inc. Monolithic PC audio circuit
JPH08321745A (ja) * 1995-03-20 1996-12-03 Fujitsu Ltd オーディオデータ処理装置
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
US5694345A (en) * 1995-06-29 1997-12-02 Thomson Consumer Electronics Hardware efficient interpolation filter
US5753841A (en) * 1995-08-17 1998-05-19 Advanced Micro Devices, Inc. PC audio system with wavetable cache
US5847304A (en) * 1995-08-17 1998-12-08 Advanced Micro Devices, Inc. PC audio system with frequency compensated wavetable data
US5837914A (en) * 1996-08-22 1998-11-17 Schulmerich Carillons, Inc. Electronic carillon system utilizing interpolated fractional address DSP algorithm
US6678382B2 (en) * 1997-11-25 2004-01-13 Thomson Licensing S.A. Digital attenuator
US6772181B1 (en) * 1999-10-29 2004-08-03 Pentomics, Inc. Apparatus and method for trigonometric interpolation
US7203718B1 (en) 1999-10-29 2007-04-10 Pentomics, Inc. Apparatus and method for angle rotation
US6874006B1 (en) 1999-10-29 2005-03-29 Pentomics, Inc. Apparatus and method for rectangular-to-polar conversion
EP1180896B1 (en) * 2000-08-17 2006-03-15 Sony Deutschland GmbH Sound generating device and method for a mobile terminal of a wireless telecommuniation system
CN103795345B (zh) * 2014-02-13 2016-08-17 深圳市汇顶科技股份有限公司 正弦波生成装置和方法
US10262646B2 (en) 2017-01-09 2019-04-16 Media Overkill, LLC Multi-source switched sequence oscillator waveform compositing system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036096A (en) * 1974-07-11 1977-07-19 Nippon Gakki Seizo Kabushiki Kaisha Musical tone waveshape generator
US4205575A (en) * 1978-05-19 1980-06-03 The Wurlitzer Company Binary interpolator for electronic musical instrument
JPS55144296A (en) * 1979-04-27 1980-11-11 Nippon Musical Instruments Mfg Electronic musical instrument
FR2459524A1 (fr) * 1979-06-15 1981-01-09 Deforeit Christian Synthetiseur numerique polyphonique de signaux periodiques et instrument de musique comportant un tel synthetiseur
JPS5792398A (en) * 1980-12-01 1982-06-08 Nippon Musical Instruments Mfg Electronic musical instrument
US4619174A (en) * 1981-04-15 1986-10-28 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument
JPS57171395A (en) * 1981-04-15 1982-10-21 Nippon Musical Instruments Mfg Electronic musical instrument
JPS5865493A (ja) * 1981-10-15 1983-04-19 松下電器産業株式会社 波形発生装置
GB2113447B (en) * 1981-12-22 1986-07-09 Casio Computer Co Ltd Tone signal generating apparatus of electronic musical instruments
JPS59226391A (ja) * 1983-06-08 1984-12-19 ヤマハ株式会社 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
JPS60147793A (ja) * 1984-01-12 1985-08-03 ヤマハ株式会社 楽音信号発生装置

Also Published As

Publication number Publication date
EP0199192A3 (en) 1988-07-06
EP0199192B1 (en) 1995-09-13
EP0199192A2 (en) 1986-10-29
US4719833A (en) 1988-01-19
DE3650389T2 (de) 1996-03-07
DE3650389D1 (de) 1995-10-19

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20060408