EP0463409A3 - Musical tone waveform generation apparatus - Google Patents

Musical tone waveform generation apparatus Download PDF

Info

Publication number
EP0463409A3
EP0463409A3 EP19910109115 EP91109115A EP0463409A3 EP 0463409 A3 EP0463409 A3 EP 0463409A3 EP 19910109115 EP19910109115 EP 19910109115 EP 91109115 A EP91109115 A EP 91109115A EP 0463409 A3 EP0463409 A3 EP 0463409A3
Authority
EP
European Patent Office
Prior art keywords
generation apparatus
musical tone
waveform generation
tone waveform
musical
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
Application number
EP19910109115
Other versions
EP0463409B1 (en
EP0463409A2 (en
Inventor
Ryuji Usami
Kosuke Shiba
Koichiro Daigo
Kazuo Ogura
Jun Hosoda
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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
Priority claimed from JP2171216A external-priority patent/JP3010693B2/en
Priority claimed from JP2171217A external-priority patent/JP3035991B2/en
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Publication of EP0463409A2 publication Critical patent/EP0463409A2/en
Publication of EP0463409A3 publication Critical patent/EP0463409A3/en
Application granted granted Critical
Publication of EP0463409B1 publication Critical patent/EP0463409B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10H5/00—Instruments in which the tones are generated by means of electronic generators
    • 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
    • G10H7/002—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof
    • G10H7/004—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof with one or more auxiliary processor in addition to the main processing unit
    • 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
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • 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
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
    • G10H1/057—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits
    • G10H1/0575—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits using a data store from which the envelope is synthesized
    • 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
    • G10H1/18—Selecting circuits
    • G10H1/183—Channel-assigning means for polyphonic instruments
    • G10H1/185—Channel-assigning means for polyphonic instruments associated with key multiplexing
    • G10H1/186—Microprocessor-controlled keyboard and assigning means
    • 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
    • G10H7/002—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof
    • G10H7/006—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof using two or more algorithms of different types to generate tones, e.g. according to tone color or to processor workload
    • 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
    • G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
    • G10H2250/591—DPCM [delta pulse code modulation]
    • 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
    • G10H2250/621—Waveform interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electrophonic Musical Instruments (AREA)
EP91109115A 1990-06-28 1991-06-04 Musical tone waveform generation apparatus Expired - Lifetime EP0463409B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2171216A JP3010693B2 (en) 1990-06-28 1990-06-28 Musical sound wave generator
JP171217/90 1990-06-28
JP2171217A JP3035991B2 (en) 1990-06-28 1990-06-28 Musical sound wave generator
JP171216/90 1990-06-28

Publications (3)

Publication Number Publication Date
EP0463409A2 EP0463409A2 (en) 1992-01-02
EP0463409A3 true EP0463409A3 (en) 1993-09-22
EP0463409B1 EP0463409B1 (en) 1998-12-30

Family

ID=26494012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109115A Expired - Lifetime EP0463409B1 (en) 1990-06-28 1991-06-04 Musical tone waveform generation apparatus

Country Status (3)

Country Link
EP (1) EP0463409B1 (en)
KR (1) KR950006029B1 (en)
DE (1) DE69130688T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69517896T2 (en) * 1994-09-13 2001-03-15 Yamaha Corp Electronic musical instrument and device for adding sound effects to the sound signal
US5898118A (en) * 1995-03-03 1999-04-27 Yamaha Corporation Computerized music apparatus composed of compatible software modules
JP3267106B2 (en) 1995-07-05 2002-03-18 ヤマハ株式会社 Musical tone waveform generation method
JP3975593B2 (en) 1999-01-21 2007-09-12 株式会社ソニー・コンピュータエンタテインメント Method for generating playback sound, electronic device for generating playback sound, and entertainment system
CN106155940A (en) * 2015-04-17 2016-11-23 扬智科技股份有限公司 The System on Chip/SoC of code and the code protection method of System on Chip/SoC can be protected

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184400A (en) * 1976-12-17 1980-01-22 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument utilizing data processing system
US4554857A (en) * 1982-06-04 1985-11-26 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument capable of varying a tone synthesis operation algorithm
JPH01101593A (en) * 1987-10-14 1989-04-19 Casio Comput Co Ltd Electronic musical instrument
EP0376342A2 (en) * 1988-12-29 1990-07-04 Casio Computer Company Limited Data processing apparatus for electronic musical instruments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184400A (en) * 1976-12-17 1980-01-22 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument utilizing data processing system
US4554857A (en) * 1982-06-04 1985-11-26 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument capable of varying a tone synthesis operation algorithm
JPH01101593A (en) * 1987-10-14 1989-04-19 Casio Comput Co Ltd Electronic musical instrument
EP0376342A2 (en) * 1988-12-29 1990-07-04 Casio Computer Company Limited Data processing apparatus for electronic musical instruments

Also Published As

Publication number Publication date
DE69130688T2 (en) 1999-09-09
EP0463409B1 (en) 1998-12-30
DE69130688D1 (en) 1999-02-11
EP0463409A2 (en) 1992-01-02
KR950006029B1 (en) 1995-06-07
KR920001423A (en) 1992-01-30

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