FR2442485A1 - Synthetiseur numerique polyphonique de signaux periodiques - Google Patents
Synthetiseur numerique polyphonique de signaux periodiquesInfo
- Publication number
- FR2442485A1 FR2442485A1 FR7832727A FR7832727A FR2442485A1 FR 2442485 A1 FR2442485 A1 FR 2442485A1 FR 7832727 A FR7832727 A FR 7832727A FR 7832727 A FR7832727 A FR 7832727A FR 2442485 A1 FR2442485 A1 FR 2442485A1
- Authority
- FR
- France
- Prior art keywords
- synthesiser
- keyboard
- synthesising
- polyphonic
- manuals
- 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
- 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)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
L'invention concerne un synthétiseur polyphonique de signaux périodiques utilisant les techniques numériques. L'ensemble des données qui caractérisent chaque échantillon de chaque signal périodique est défini dans des blocs de mémoires inclus dans des groupes associés à autant de circuits générateurs de signaux rectangulaires. Une mémoire supplémentaire par groupe contient en outre un sous-multiple commun de la phase instantanée des signaux périodiques du groupe. Les opérations de lecture, de calcul et de conversion se font selon un enchaînement prédéterminé, d'après le contenu des mémoires. Applications aux instruments de musiques.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7832727A FR2442485A1 (fr) | 1978-11-21 | 1978-11-21 | Synthetiseur numerique polyphonique de signaux periodiques |
US06/092,468 US4279186A (en) | 1978-11-21 | 1979-11-08 | Polyphonic synthesizer of periodic signals using digital techniques |
DE7979400886T DE2965764D1 (en) | 1978-11-21 | 1979-11-20 | Polyphonic synthesizer of periodical signals using digital techniques |
ES486146A ES486146A1 (es) | 1978-11-21 | 1979-11-20 | Un dispositivo sintetizador polifonico de senales periodicas |
NO793756A NO793756L (no) | 1978-11-21 | 1979-11-20 | Polyfonisk syntetisator for periodiske signaler som anvender numerisk teknikk |
AT79400886T ATE3918T1 (de) | 1978-11-21 | 1979-11-20 | Polyphone syntheseschaltung fuer periodische signale unter anwendung digitaler techniken. |
EP79400886A EP0011576B1 (fr) | 1978-11-21 | 1979-11-20 | Synthétiseur polyphonique de signaux périodiques utilisant les techniques numériques |
DD79217042A DD147288A5 (de) | 1978-11-21 | 1979-11-21 | Polyphoner synthesizer periodischer signale unter verwendung digitaler verfahren |
JP15010779A JPS5598795A (en) | 1978-11-21 | 1979-11-21 | Polyphonics synthesizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7832727A FR2442485A1 (fr) | 1978-11-21 | 1978-11-21 | Synthetiseur numerique polyphonique de signaux periodiques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2442485A1 true FR2442485A1 (fr) | 1980-06-20 |
FR2442485B1 FR2442485B1 (fr) | 1981-05-29 |
Family
ID=9215099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7832727A Granted FR2442485A1 (fr) | 1978-11-21 | 1978-11-21 | Synthetiseur numerique polyphonique de signaux periodiques |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5598795A (fr) |
FR (1) | FR2442485A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2153149A1 (fr) * | 1969-10-30 | 1973-05-04 | North American Rockwell | |
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 |
FR2396375A1 (fr) * | 1977-07-01 | 1979-01-26 | Deforeit Christian | Synthetiseur polyphonique de signaux periodiques et instrument de musique electronique comportant un tel synthetiseur |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS526612A (en) * | 1975-06-24 | 1977-01-19 | Raita Nouki Kk | Rice transplanting machin with concave seedling resting plate in crossssection |
-
1978
- 1978-11-21 FR FR7832727A patent/FR2442485A1/fr active Granted
-
1979
- 1979-11-21 JP JP15010779A patent/JPS5598795A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2153149A1 (fr) * | 1969-10-30 | 1973-05-04 | North American Rockwell | |
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 |
FR2396375A1 (fr) * | 1977-07-01 | 1979-01-26 | Deforeit Christian | Synthetiseur polyphonique de signaux periodiques et instrument de musique electronique comportant un tel synthetiseur |
Also Published As
Publication number | Publication date |
---|---|
JPS5598795A (en) | 1980-07-28 |
FR2442485B1 (fr) | 1981-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CA | Change of address | ||
TP | Transmission of property | ||
CL | Concession to grant licences | ||
ST | Notification of lapse |