ES486146A1 - Un dispositivo sintetizador polifonico de senales periodicas - Google Patents
Un dispositivo sintetizador polifonico de senales periodicasInfo
- Publication number
- ES486146A1 ES486146A1 ES486146A ES486146A ES486146A1 ES 486146 A1 ES486146 A1 ES 486146A1 ES 486146 A ES486146 A ES 486146A ES 486146 A ES486146 A ES 486146A ES 486146 A1 ES486146 A1 ES 486146A1
- Authority
- ES
- Spain
- Prior art keywords
- synthesizer
- digital techniques
- memory
- addressing
- wave form
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000001143 conditioned effect Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 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
- G10H7/08—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
- G10H7/10—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 using coefficients or parameters stored in a memory, e.g. Fourier coefficients
- G10H7/105—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 using coefficients or parameters stored in a memory, e.g. Fourier coefficients using Fourier coefficients
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- General Physics & Mathematics (AREA)
- Algebra (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Un dispositivo sintetizador polifónico de señales periódicas del tipo que incluye: medios de producción de muestras numéricas sucesivas de una forma de onda periódica, de frecuencia de repetición variable, a partir de datos numéricos de fase y de amplitud especialmente; medios de conversión numérica analógica de las muestras sucesivas suministradas por los medios de producción; un número determinado de generadores de señales rectangulares de frecuencias diferentes, siendo la frecuencia de cada generador múltiplo de al menos una señal periódica que puede producir el sintetizador; un conjunto de bloques de memorias para contener datos numéricos que representan, al menos, la amplitud de las señales periódicas a producir; y medios de mando de lectura secuencial de los datos en los bloques de memorias, acoplados a los generadores y a los medios de producción de muestras, para aplicar los datos leídos a éstos sensiblemente en sincronismo con las señales de los generadores; estando caracterizado el sintetizador por el hecho de que el conjunto de los bloques de memorias está dividido en grupos que contienen, cada uno, el conjunto de los datos relativos a la producción de las señales periódicas en relación armónica de frecuencia con uno de los generadores, incluyendo cada bloque una memoria que contiene un dato de acceso de otro bloque, de manera que existe un encadenamiento de las direcciones de los bloques en cada grupo; y los medios de mando de lectura incluyen medios de acceso de los bloques de cada grupo según el encadenamiento de las direcciones en los bloques, a cada cambio de la señal del generador correspondiente.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7832727A FR2442485A1 (fr) | 1978-11-21 | 1978-11-21 | Synthetiseur numerique polyphonique de signaux periodiques |
| FR7907339A FR2452145A2 (fr) | 1979-03-23 | 1979-03-23 | Synthetiseur polyphonique de signaux periodiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES486146A1 true ES486146A1 (es) | 1980-06-16 |
Family
ID=26220857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES486146A Expired ES486146A1 (es) | 1978-11-21 | 1979-11-20 | Un dispositivo sintetizador polifonico de senales periodicas |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4279186A (es) |
| EP (1) | EP0011576B1 (es) |
| DD (1) | DD147288A5 (es) |
| DE (1) | DE2965764D1 (es) |
| ES (1) | ES486146A1 (es) |
| NO (1) | NO793756L (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632188A (en) * | 1979-08-24 | 1981-04-01 | Sony Corp | Waveform synthesizer |
| DE3023580C2 (de) * | 1980-06-24 | 1982-04-01 | Matth. Hohner Ag, 7218 Trossingen | Verfahren zur Phasensynchronisation digital synthetisierter Töne eines Musikinstruments und Schaltungsanordnung zur Durchführung des Verfahrens |
| EP0102169B1 (en) * | 1982-07-19 | 1987-09-16 | Matsushita Electric Industrial Co., Ltd. | Wave reading apparatus |
| DE3331176C1 (de) * | 1983-08-30 | 1990-01-25 | WERSI-electronic GmbH & Co KG, 5401 Halsenbach | Vorrichtung zur digitalen Erzeugung der Klänge von Instrumenten, insbesondere Schlagzeugklängen |
| JP2819948B2 (ja) * | 1992-07-16 | 1998-11-05 | ヤマハ株式会社 | 楽音信号記録再生装置 |
| US5444818A (en) * | 1992-12-03 | 1995-08-22 | International Business Machines Corporation | System and method for dynamically configuring synthesizers |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3610806A (en) * | 1969-10-30 | 1971-10-05 | North American Rockwell | Adaptive sustain system for digital electronic organ |
| US3955459A (en) * | 1973-06-12 | 1976-05-11 | Nippon Gakki Seizo Kabushiki Kaisha | Electronic musical instrument |
| JPS5651632B2 (es) * | 1974-09-17 | 1981-12-07 | ||
| US4023454A (en) * | 1975-08-28 | 1977-05-17 | Kabushiki Kaisha Dawai Gakki Seisakusho | Tone source apparatus for an electronic musical instrument |
| FR2344907A1 (fr) * | 1976-03-16 | 1977-10-14 | Deforeit Christian | Instrument de musique electronique polyphonique |
| US4177706A (en) * | 1976-09-08 | 1979-12-11 | Greenberger Alan J | Digital real time music synthesizer |
| FR2396375A1 (fr) * | 1977-07-01 | 1979-01-26 | Deforeit Christian | Synthetiseur polyphonique de signaux periodiques et instrument de musique electronique comportant un tel synthetiseur |
| US4193332A (en) * | 1978-09-18 | 1980-03-18 | Richardson Charles B | Music synthesizing circuit |
-
1979
- 1979-11-08 US US06/092,468 patent/US4279186A/en not_active Expired - Lifetime
- 1979-11-20 NO NO793756A patent/NO793756L/no unknown
- 1979-11-20 EP EP79400886A patent/EP0011576B1/fr not_active Expired
- 1979-11-20 ES ES486146A patent/ES486146A1/es not_active Expired
- 1979-11-20 DE DE7979400886T patent/DE2965764D1/de not_active Expired
- 1979-11-21 DD DD79217042A patent/DD147288A5/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4279186A (en) | 1981-07-21 |
| EP0011576B1 (fr) | 1983-06-22 |
| NO793756L (no) | 1980-05-22 |
| DD147288A5 (de) | 1981-03-25 |
| EP0011576A1 (fr) | 1980-05-28 |
| DE2965764D1 (en) | 1983-07-28 |
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