DE3650389D1 - Tonsignalerzeugungsvorrichtung. - Google Patents
Tonsignalerzeugungsvorrichtung.Info
- Publication number
- DE3650389D1 DE3650389D1 DE3650389T DE3650389T DE3650389D1 DE 3650389 D1 DE3650389 D1 DE 3650389D1 DE 3650389 T DE3650389 T DE 3650389T DE 3650389 T DE3650389 T DE 3650389T DE 3650389 D1 DE3650389 D1 DE 3650389D1
- Authority
- DE
- Germany
- Prior art keywords
- generating device
- signal generating
- sound signal
- sound
- signal
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
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 (2)
Publication Number | Publication Date |
---|---|
DE3650389D1 true DE3650389D1 (de) | 1995-10-19 |
DE3650389T2 DE3650389T2 (de) | 1996-03-07 |
Family
ID=26419032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3650389T Expired - Lifetime DE3650389T2 (de) | 1985-04-12 | 1986-04-09 | Tonsignalerzeugungsvorrichtung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4719833A (de) |
EP (1) | EP0199192B1 (de) |
DE (1) | DE3650389T2 (de) |
HK (1) | HK188396A (de) |
Families Citing this family (32)
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 |
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 |
US5200567A (en) * | 1986-11-06 | 1993-04-06 | Casio Computer Co., Ltd. | Envelope generating apparatus |
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 |
US6272465B1 (en) | 1994-11-02 | 2001-08-07 | Legerity, Inc. | Monolithic PC audio circuit |
US5742695A (en) * | 1994-11-02 | 1998-04-21 | Advanced Micro Devices, Inc. | Wavetable audio synthesizer with waveform volume control for eliminating zipper noise |
JPH08321745A (ja) * | 1995-03-20 | 1996-12-03 | Fujitsu Ltd | オーディオデータ処理装置 |
DE69623866T2 (de) * | 1995-06-19 | 2003-05-28 | Yamaha Corp | Verfahren und Vorrichtung zur Bildung einer Tonwellenform durch kombinierte Verwendung von verschiedenen Auflösungen der Abtastwerte der Wellenformen |
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 |
US6874006B1 (en) | 1999-10-29 | 2005-03-29 | Pentomics, Inc. | Apparatus and method for rectangular-to-polar conversion |
US7203718B1 (en) * | 1999-10-29 | 2007-04-10 | Pentomics, Inc. | Apparatus and method for angle rotation |
US6772181B1 (en) * | 1999-10-29 | 2004-08-03 | Pentomics, Inc. | Apparatus and method for trigonometric interpolation |
DE60026643T2 (de) * | 2000-08-17 | 2007-04-12 | Sony Deutschland Gmbh | Vorrichtung und Verfahren zur Tonerzeugung für ein mobiles Endgerät in einem drahtlosen Telekommunikatsionssystem |
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 |
WO2018129558A1 (en) | 2017-01-09 | 2018-07-12 | Media Overkill, LLC | Multi-source switched sequence oscillator waveform compositing system |
Family Cites Families (12)
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 |
JPS57171395A (en) * | 1981-04-15 | 1982-10-21 | Nippon Musical Instruments Mfg | Electronic musical instrument |
US4619174A (en) * | 1981-04-15 | 1986-10-28 | Nippon Gakki Seizo Kabushiki Kaisha | 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 |
JPS60147793A (ja) * | 1984-01-12 | 1985-08-03 | ヤマハ株式会社 | 楽音信号発生装置 |
US4633749A (en) * | 1984-01-12 | 1987-01-06 | Nippon Gakki Seizo Kabushiki Kaisha | Tone signal generation device for an electronic musical instrument |
-
1986
- 1986-04-09 EP EP86104867A patent/EP0199192B1/de not_active Expired - Lifetime
- 1986-04-09 DE DE3650389T patent/DE3650389T2/de not_active Expired - Lifetime
- 1986-04-10 US US06/850,287 patent/US4719833A/en not_active Expired - Lifetime
-
1996
- 1996-10-10 HK HK188396A patent/HK188396A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3650389T2 (de) | 1996-03-07 |
US4719833A (en) | 1988-01-19 |
EP0199192A3 (en) | 1988-07-06 |
HK188396A (en) | 1996-10-18 |
EP0199192A2 (de) | 1986-10-29 |
EP0199192B1 (de) | 1995-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |