JPS5163613A - - Google Patents

Info

Publication number
JPS5163613A
JPS5163613A JP50115847A JP11584775A JPS5163613A JP S5163613 A JPS5163613 A JP S5163613A JP 50115847 A JP50115847 A JP 50115847A JP 11584775 A JP11584775 A JP 11584775A JP S5163613 A JPS5163613 A JP S5163613A
Authority
JP
Japan
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
Application number
JP50115847A
Other languages
Japanese (ja)
Other versions
JPS5335447B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Doichu Rarufu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Publication of JPS5163613A publication Critical patent/JPS5163613A/ja
Publication of JPS5335447B2 publication Critical patent/JPS5335447B2/ja
Expired legal-status Critical Current

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
    • 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
    • G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
    • G10H2250/141—Bessel functions, e.g. for smoothing or modulating, for FM audio synthesis or for expressing the vibration modes of a circular drum membrane

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)
  • Amplitude Modulation (AREA)
JP11584775A 1974-09-26 1975-09-25 Expired JPS5335447B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/509,705 US3972259A (en) 1974-09-26 1974-09-26 Production of pulse width modulation tonal effects in a computor organ

Publications (2)

Publication Number Publication Date
JPS5163613A true JPS5163613A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-06-02
JPS5335447B2 JPS5335447B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-09-27

Family

ID=24027777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11584775A Expired JPS5335447B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-09-26 1975-09-25

Country Status (2)

Country Link
US (1) US3972259A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5335447B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH594953A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1975-04-08 1978-01-31 Ito Patent Ag
US4133241A (en) * 1975-05-27 1979-01-09 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument utilizing recursive algorithm
US4116103A (en) * 1976-07-12 1978-09-26 Deutsch Research Laboratories, Ltd. Pulse width modulation in a digital tone synthesizer
US4189970A (en) * 1977-04-14 1980-02-26 Allen Organ Company Method and apparatus for achieving timbre modulation in an electronic musical instrument
US4205574A (en) * 1978-01-27 1980-06-03 The Wurlitzer Company Electronic musical instrument with variable pulse producing system
US4297935A (en) * 1978-02-24 1981-11-03 Marmon Company Divider keyer circuit for synthesis organ
US4211138A (en) * 1978-06-22 1980-07-08 Kawai Musical Instrument Mfg. Co., Ltd. Harmonic formant filter for an electronic musical instrument
US4763257A (en) * 1983-11-15 1988-08-09 Manfred Clynes Computerized system for imparting an expressive microstructure to successive notes in a musical score
US4704682A (en) * 1983-11-15 1987-11-03 Manfred Clynes Computerized system for imparting an expressive microstructure to succession of notes in a musical score
US4999773A (en) * 1983-11-15 1991-03-12 Manfred Clynes Technique for contouring amplitude of musical notes based on their relationship to the succeeding note
ITMC20030032A1 (it) * 2003-03-28 2004-09-29 Viscount Internat Spa Metodo e dispositivo elettronico per riprodurre il suono delle canne ad anima dell'organo liturgico, sfruttando la tecnica della modellazione fisica degli strumenti acustici

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610805A (en) * 1969-10-30 1971-10-05 North American Rockwell Attack and decay system for a digital electronic organ
GB1409763A (en) * 1972-01-17 1975-10-15 Nippon Musical Instruments Mfg Musical tone wave shape generating apparatus
JPS5236406B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-01-17 1977-09-16
US3809786A (en) * 1972-02-14 1974-05-07 Deutsch Res Lab Computor organ
US3809788A (en) * 1972-10-17 1974-05-07 Nippon Musical Instruments Mfg Computor organ using parallel processing
US3809789A (en) * 1972-12-13 1974-05-07 Nippon Musical Instruments Mfg Computor organ using harmonic limiting
US3809790A (en) * 1973-01-31 1974-05-07 Nippon Musical Instruments Mfg Implementation of combined footage stops in a computor organ

Also Published As

Publication number Publication date
JPS5335447B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-09-27
US3972259A (en) 1976-08-03

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