KR930005221B1 - Tone signal generating apparatus for electronic musical instrument - Google Patents

Tone signal generating apparatus for electronic musical instrument

Info

Publication number
KR930005221B1
KR930005221B1 KR8920242A KR890020242A KR930005221B1 KR 930005221 B1 KR930005221 B1 KR 930005221B1 KR 8920242 A KR8920242 A KR 8920242A KR 890020242 A KR890020242 A KR 890020242A KR 930005221 B1 KR930005221 B1 KR 930005221B1
Authority
KR
South Korea
Prior art keywords
signal generating
generating apparatus
musical instrument
tone signal
electronic musical
Prior art date
Application number
KR8920242A
Other languages
Korean (ko)
Other versions
KR900010646A (en
Inventor
Kousuke Shiba
Katsuo Okura
Ryuji Usami
Gouichiro Dai
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 JP63334161A external-priority patent/JP2576615B2/en
Priority claimed from JP63334166A external-priority patent/JP2576618B2/en
Priority claimed from JP63334162A external-priority patent/JP2576616B2/en
Priority claimed from JP63334163A external-priority patent/JP2576617B2/en
Priority claimed from JP63334158A external-priority patent/JP2576613B2/en
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Publication of KR900010646A publication Critical patent/KR900010646A/en
Application granted granted Critical
Publication of KR930005221B1 publication Critical patent/KR930005221B1/en

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
    • G10H7/02—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
    • G10H1/04—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
    • 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
    • G10H7/08—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
    • 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)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Electrophonic Musical Instruments (AREA)
KR8920242A 1988-12-29 1989-12-29 Tone signal generating apparatus for electronic musical instrument KR930005221B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP334158 1988-12-29
JP63334161A JP2576615B2 (en) 1988-12-29 1988-12-29 Processing equipment
JP63334166A JP2576618B2 (en) 1988-12-29 1988-12-29 Processing equipment
JP63334162A JP2576616B2 (en) 1988-12-29 1988-12-29 Processing equipment
JP63334163A JP2576617B2 (en) 1988-12-29 1988-12-29 Processing equipment
JP63334158A JP2576613B2 (en) 1988-12-29 1988-12-29 Processing equipment

Publications (2)

Publication Number Publication Date
KR900010646A KR900010646A (en) 1990-07-09
KR930005221B1 true KR930005221B1 (en) 1993-06-16

Family

ID=27531219

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8920242A KR930005221B1 (en) 1988-12-29 1989-12-29 Tone signal generating apparatus for electronic musical instrument

Country Status (3)

Country Link
EP (1) EP0376342B1 (en)
KR (1) KR930005221B1 (en)
DE (1) DE68917113T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69130688T2 (en) * 1990-06-28 1999-09-09 Casio Computer Co Ltd Device for generating music waveforms
JP2705395B2 (en) * 1991-10-07 1998-01-28 ヤマハ株式会社 Electronic musical instrument
JP3267106B2 (en) * 1995-07-05 2002-03-18 ヤマハ株式会社 Musical tone waveform generation method
CN1145519A (en) * 1995-09-01 1997-03-19 苏勇 Audio signal fidelity speed variable treatment method
EP1011091B1 (en) 1995-09-29 2004-04-28 Yamaha Corporation Musical tone-generating method and musical tone-generating apparatus
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5375919A (en) * 1976-12-17 1978-07-05 Nippon Gakki Seizo Kk Electronic instrument
GB2013386A (en) * 1977-09-10 1979-08-08 Fox H M Electronic sound processing device
JPS6145297A (en) * 1984-08-09 1986-03-05 カシオ計算機株式会社 Electronic musical instrument
JPH067323B2 (en) * 1984-11-30 1994-01-26 カシオ計算機株式会社 Electronic musical instrument

Also Published As

Publication number Publication date
KR900010646A (en) 1990-07-09
DE68917113T2 (en) 1995-03-16
DE68917113D1 (en) 1994-09-01
EP0376342A2 (en) 1990-07-04
EP0376342B1 (en) 1994-07-27
EP0376342A3 (en) 1990-11-28

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20010605

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee