JPH11503243A - 楽音を合成する際に異なる波形を生成するための方法および装置 - Google Patents
楽音を合成する際に異なる波形を生成するための方法および装置Info
- Publication number
- JPH11503243A JPH11503243A JP8530152A JP53015296A JPH11503243A JP H11503243 A JPH11503243 A JP H11503243A JP 8530152 A JP8530152 A JP 8530152A JP 53015296 A JP53015296 A JP 53015296A JP H11503243 A JPH11503243 A JP H11503243A
- Authority
- JP
- Japan
- Prior art keywords
- waveform
- phase angle
- multiplexer
- angle input
- shifter
- 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.)
- Granted
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
- G10H5/00—Instruments in which the tones are generated by means of electronic generators
- G10H5/10—Instruments in which the tones are generated by means of electronic generators using generation of non-sinusoidal basic tones, e.g. saw-tooth
-
- 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
- G10H2250/551—Waveform approximation, e.g. piecewise approximation of sinusoidal or complex waveforms
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.位相角入力(300)を改変して出力を生成するためのマルチプレクサ/シフタ(3 40)と、 該マルチプレクサ/シフタ(304)の出力を改変して出力を生成するための組合せ 論理回路(310、318)と、 該マルチプレクサ/シフタ(304)の出力に、該組合せ論理回路(310、318)の出力 を乗じて、波形を生成するための乗算器(312)とを備える、位相角入力から所定 の波形を生成するための回路。 2.前記組合せ論理回路が、排他的ORゲート(318)のバンクおよびANDゲート(310 )のバンクを備える、請求項1に記載の回路。 3.前記ANDゲート(310)のバンクが、前記排他的ORゲート(318)のバンクに続く 、請求項2に記載の回路。 4.位相角入力(300)を多重化/シフトするステップと、 組合せ論理(310、318)を使用して、該多重化/シフトするステップの結果を改 変するステップと、 該多重化/シフトするステップおよび該改変するステップの結果を乗じて波形 を生成するステップとを包含する、位相角入力から所定の波形を生成するための 方法。 5.前記多重化/シフトするステップが、ヌルオペレーションを実施するステッ プを包含する、請求項4に記載の方法。 6.前記組み合わせ論理(310、318)を使用して、前記多重化/シフトするステッ プの結果を改変するステップが、追加の加算、またはキャリーチェインを必要と するいかなる演算も行わない、請求項4または5に記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41851895A | 1995-04-07 | 1995-04-07 | |
US08/418,518 | 1995-04-07 | ||
US418.518 | 1995-04-07 | ||
PCT/IB1996/000398 WO1996031868A1 (en) | 1995-04-07 | 1996-04-05 | Method and apparatus for creating different waveforms when synthesizing musical sounds |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11503243A true JPH11503243A (ja) | 1999-03-23 |
JP3228753B2 JP3228753B2 (ja) | 2001-11-12 |
Family
ID=23658453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53015296A Expired - Lifetime JP3228753B2 (ja) | 1995-04-07 | 1996-04-05 | 楽音を合成する際に異なる波形を生成するための方法および装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6091269A (ja) |
EP (1) | EP0819301B1 (ja) |
JP (1) | JP3228753B2 (ja) |
AU (1) | AU5344796A (ja) |
DE (1) | DE69619364T2 (ja) |
ES (1) | ES2173277T3 (ja) |
TW (1) | TW326521B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5808691A (en) * | 1995-12-12 | 1998-09-15 | Cirrus Logic, Inc. | Digital carrier synthesis synchronized to a reference signal that is asynchronous with respect to a digital sampling clock |
US6581082B1 (en) * | 2000-02-22 | 2003-06-17 | Rockwell Collins | Reduced gate count differentiator |
US7209937B2 (en) * | 2003-07-10 | 2007-04-24 | Raytheon Company | Method and apparatus for generation of arbitrary mono-cycle waveforms |
US7787634B1 (en) | 2006-01-16 | 2010-08-31 | Philip Young Dahl | Musical distortion circuits |
US7847177B2 (en) * | 2008-07-24 | 2010-12-07 | Freescale Semiconductor, Inc. | Digital complex tone generator and corresponding methods |
KR102386706B1 (ko) | 2015-06-11 | 2022-04-14 | 삼성디스플레이 주식회사 | 표시 장치 및 이를 구비한 시계 |
CN111467643A (zh) * | 2020-03-20 | 2020-07-31 | 肖赫 | 助眠方法、装置、计算机设备和存储介质 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US34481A (en) * | 1862-02-25 | Improved smoothing-iron | ||
US3515039A (en) * | 1964-01-29 | 1970-06-02 | Matsushita Electric Ind Co Ltd | Electronic musical instruments with tone generating,mixing,and distributing systems |
US3979991A (en) * | 1968-05-22 | 1976-09-14 | Matsushita Electric Industrial Co., Ltd. | Electronic expression device for producing tremulant effect |
US3534144A (en) * | 1969-01-02 | 1970-10-13 | Hammond Corp | Keyer-synthesizer for an electronic musical instrument employing an integrated circuit |
US3649821A (en) * | 1970-06-15 | 1972-03-14 | Philco Ford Corp | Digital multiple-tone generator |
US3888153A (en) * | 1973-06-28 | 1975-06-10 | Nippon Gakki Seiko Kk | Anharmonic overtone generation in a computor organ |
US4018121A (en) * | 1974-03-26 | 1977-04-19 | The Board Of Trustees Of Leland Stanford Junior University | Method of synthesizing a musical sound |
JPS5297722A (en) * | 1976-02-12 | 1977-08-16 | Nippon Gakki Seizo Kk | Electronic musical instrument |
US4130876A (en) * | 1977-05-27 | 1978-12-19 | Nippon Gakki Seizo Kabushiki Kaisha | Method of and apparatus for composing approximate sinusoidal waveform |
US4175464A (en) * | 1978-01-03 | 1979-11-27 | Kawai Musical Instrument Mfg. Co. Ltd. | Musical tone generator with time variant overtones |
JPS5567799A (en) * | 1978-11-16 | 1980-05-22 | Nippon Musical Instruments Mfg | Electronic musical instrument |
FR2465477B1 (fr) * | 1979-09-21 | 1985-09-06 | Publimepharm | Procede et dispositif a transfert circulaire pour le conditionnement automatise d'ampoules pharmaceutiques |
US4259888A (en) * | 1979-12-06 | 1981-04-07 | Norlin Industries, Inc. | Tone generation system employing triangular waves |
US4318045A (en) * | 1980-04-10 | 1982-03-02 | Rca Corporation | Symmetrical waveform signal generator having coherent frequency shift capability |
US4453869A (en) * | 1981-04-07 | 1984-06-12 | Cremieux George V | Fastener technology |
JPS5814191A (ja) * | 1981-07-17 | 1983-01-26 | ヤマハ株式会社 | 変調効果装置 |
US4554858A (en) * | 1982-08-13 | 1985-11-26 | Nippon Gakki Seizo Kabushiki Kaisha | Digital filter for an electronic musical instrument |
USRE34481E (en) | 1982-12-17 | 1993-12-21 | Casio Computer Co., Ltd. | Electronic musical instrument |
JP2599193B2 (ja) * | 1989-01-26 | 1997-04-09 | 株式会社河合楽器製作所 | 楽音情報表現方法及び楽音情報表現装置 |
JP2766662B2 (ja) * | 1989-03-15 | 1998-06-18 | 株式会社河合楽器製作所 | 楽音発生装置の波形データ読み出し装置及び波形データ読み出し方法 |
DE69018687T2 (de) * | 1989-04-21 | 1996-01-25 | Yamaha Corp | Musiksynthesizer. |
JP2580774B2 (ja) * | 1989-05-15 | 1997-02-12 | ヤマハ株式会社 | 楽音合成装置 |
US5223653A (en) * | 1989-05-15 | 1993-06-29 | Yamaha Corporation | Musical tone synthesizing apparatus |
US5157215A (en) * | 1989-09-20 | 1992-10-20 | Casio Computer Co., Ltd. | Electronic musical instrument for modulating musical tone signal with voice |
JP2580821B2 (ja) * | 1990-02-20 | 1997-02-12 | ヤマハ株式会社 | 楽音波形信号形成装置 |
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 |
US5243658A (en) * | 1990-08-10 | 1993-09-07 | Casio Computer Co., Ltd. | Modulation effect adding apparatus |
US5194684A (en) * | 1990-11-01 | 1993-03-16 | International Business Machines Corporation | Method and apparatus for selective reduction of upper harmonic content in digital synthesizer excitation signals |
JP3102049B2 (ja) * | 1991-03-22 | 2000-10-23 | カシオ計算機株式会社 | 電子楽器の音色パラメータ編集装置 |
US5187677A (en) * | 1991-08-23 | 1993-02-16 | Hewlett-Packard Company | Waveform synthesizer through simulating multiplication |
US5543578A (en) * | 1993-09-02 | 1996-08-06 | Mediavision, Inc. | Residual excited wave guide |
-
1996
- 1996-04-05 DE DE69619364T patent/DE69619364T2/de not_active Expired - Lifetime
- 1996-04-05 AU AU53447/96A patent/AU5344796A/en not_active Abandoned
- 1996-04-05 EP EP96910151A patent/EP0819301B1/en not_active Expired - Lifetime
- 1996-04-05 ES ES96910151T patent/ES2173277T3/es not_active Expired - Lifetime
- 1996-04-05 JP JP53015296A patent/JP3228753B2/ja not_active Expired - Lifetime
- 1996-04-10 TW TW085104236A patent/TW326521B/zh not_active IP Right Cessation
- 1996-07-17 US US08/682,383 patent/US6091269A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0819301A1 (en) | 1998-01-21 |
EP0819301B1 (en) | 2002-02-20 |
TW326521B (en) | 1998-02-11 |
US6091269A (en) | 2000-07-18 |
JP3228753B2 (ja) | 2001-11-12 |
AU5344796A (en) | 1996-10-23 |
ES2173277T3 (es) | 2002-10-16 |
DE69619364T2 (de) | 2002-07-18 |
DE69619364D1 (de) | 2002-03-28 |
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