JPS6243199B2 - - Google Patents
Info
- Publication number
- JPS6243199B2 JPS6243199B2 JP53123123A JP12312378A JPS6243199B2 JP S6243199 B2 JPS6243199 B2 JP S6243199B2 JP 53123123 A JP53123123 A JP 53123123A JP 12312378 A JP12312378 A JP 12312378A JP S6243199 B2 JPS6243199 B2 JP S6243199B2
- Authority
- JP
- Japan
- Prior art keywords
- digital
- filter
- data
- digital filter
- input
- 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
Links
- 238000001914 filtration Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 9
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000015654 memory Effects 0.000 description 32
- 230000004044 response Effects 0.000 description 17
- 238000005070 sampling Methods 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 101000822695 Clostridium perfringens (strain 13 / Type A) Small, acid-soluble spore protein C1 Proteins 0.000 description 1
- 101000655262 Clostridium perfringens (strain 13 / Type A) Small, acid-soluble spore protein C2 Proteins 0.000 description 1
- 101000655256 Paraclostridium bifermentans Small, acid-soluble spore protein alpha Proteins 0.000 description 1
- 101000655264 Paraclostridium bifermentans Small, acid-soluble spore protein beta Proteins 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- G10H7/02—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
- G10H7/04—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 in which amplitudes are read at varying rates, e.g. according to pitch
-
- 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
-
- 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
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/471—General musical sound synthesis principles, i.e. sound category-independent synthesis methods
- G10H2250/481—Formant synthesis, i.e. simulating the human speech production mechanism by exciting formant resonators, e.g. mimicking vocal tract filtering as in LPC synthesis vocoders, wherein musical instruments may be used as excitation signal to the time-varying filter estimated from a singer's speech
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Electrophonic Musical Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/839,916 US4267761A (en) | 1977-10-06 | 1977-10-06 | Musical tone generator utilizing digital sliding formant filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5459922A JPS5459922A (en) | 1979-05-15 |
| JPS6243199B2 true JPS6243199B2 (US20100223739A1-20100909-C00005.png) | 1987-09-11 |
Family
ID=25280974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12312378A Granted JPS5459922A (en) | 1977-10-06 | 1978-10-05 | Musical tone generator using digital slide type formant filter |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4267761A (US20100223739A1-20100909-C00005.png) |
| JP (1) | JPS5459922A (US20100223739A1-20100909-C00005.png) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746295A (en) * | 1980-09-05 | 1982-03-16 | Nippon Musical Instruments Mfg | Electronic musical instrument |
| US4351218A (en) * | 1981-04-02 | 1982-09-28 | Kawai Musical Instrument Mfg. Co., Ltd. | Recursive formant generator for an electronic musical instrument |
| JPS57176096A (en) * | 1981-04-23 | 1982-10-29 | Nippon Musical Instruments Mfg | Electronic musical instrument |
| JPS58111096A (ja) * | 1981-12-25 | 1983-07-01 | ヤマハ株式会社 | 電子楽器のデイジタルフイルタ装置 |
| JPS5944096A (ja) * | 1982-09-06 | 1984-03-12 | ヤマハ株式会社 | 電子楽器のデイジタルフイルタ装置 |
| JPS6031189A (ja) * | 1983-07-30 | 1985-02-16 | カシオ計算機株式会社 | 楽音発生装置 |
| JPS6052895A (ja) * | 1983-09-02 | 1985-03-26 | ヤマハ株式会社 | 楽音信号発生装置 |
| JPS6153839A (ja) * | 1984-08-23 | 1986-03-17 | Sony Corp | 波形整形装置 |
| JPH079588B2 (ja) * | 1984-08-31 | 1995-02-01 | ヤマハ株式会社 | 楽音発生装置 |
| JPH0631968B2 (ja) * | 1984-10-30 | 1994-04-27 | ヤマハ株式会社 | 楽音信号発生装置 |
| US5036541A (en) * | 1988-02-19 | 1991-07-30 | Yamaha Corporation | Modulation effect device |
| 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 |
| JP2623942B2 (ja) * | 1990-09-05 | 1997-06-25 | ヤマハ株式会社 | 楽音信号発生装置 |
| FR2702896B1 (fr) * | 1993-03-17 | 1995-06-09 | Sgs Thomson Microelectronics | Generateur multifrequence programmable. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140115A (US20100223739A1-20100909-C00005.png) * | 1974-07-25 | 1976-04-03 | Nippon Musical Instruments Mfg |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3515792A (en) * | 1967-08-16 | 1970-06-02 | North American Rockwell | Digital organ |
| US3878749A (en) * | 1972-12-12 | 1975-04-22 | Allen Organ Co | Walsh function tone generator and system |
| GB1503613A (en) * | 1974-03-06 | 1978-03-15 | Matsushita Electric Ind Co Ltd | Electronic musical instruments |
| JPS5251926A (en) * | 1975-10-23 | 1977-04-26 | Nippon Gakki Seizo Kk | Electronic musical instrument |
| US4101964A (en) * | 1976-01-08 | 1978-07-18 | The United States Of America As Represented By The Secretary Of The Army | Digital filter for pulse code modulation signals |
| US4122742A (en) * | 1976-08-03 | 1978-10-31 | Deutsch Research Laboratories, Ltd. | Transient voice generator |
| JPS5376726A (en) * | 1976-12-20 | 1978-07-07 | Toshiba Corp | Synchronizing system digital filter |
-
1977
- 1977-10-06 US US05/839,916 patent/US4267761A/en not_active Expired - Lifetime
-
1978
- 1978-10-05 JP JP12312378A patent/JPS5459922A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140115A (US20100223739A1-20100909-C00005.png) * | 1974-07-25 | 1976-04-03 | Nippon Musical Instruments Mfg |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5459922A (en) | 1979-05-15 |
| US4267761A (en) | 1981-05-19 |
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