HK168695A - Tone signal generation device employing a digital filter - Google Patents

Tone signal generation device employing a digital filter

Info

Publication number
HK168695A
HK168695A HK168695A HK168695A HK168695A HK 168695 A HK168695 A HK 168695A HK 168695 A HK168695 A HK 168695A HK 168695 A HK168695 A HK 168695A HK 168695 A HK168695 A HK 168695A
Authority
HK
Hong Kong
Prior art keywords
signal generation
generation device
digital filter
tone signal
device employing
Prior art date
Application number
HK168695A
Inventor
Hideo Suzuki
Original Assignee
Yamaha Corp
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 Yamaha Corp filed Critical Yamaha Corp
Publication of HK168695A publication Critical patent/HK168695A/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
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
    • G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
    • 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
    • G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
    • G10H2250/111—Impulse response, i.e. filters defined or specifed by their temporal impulse response features, e.g. for echo or reverberation applications
    • G10H2250/115—FIR impulse, e.g. for echoes or room acoustics, the shape of the impulse response is specified in particular according to delay times
    • 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
    • G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
    • G10H2250/111—Impulse response, i.e. filters defined or specifed by their temporal impulse response features, e.g. for echo or reverberation applications
    • G10H2250/121—IIR impulse
    • 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
    • G10H2250/145—Convolution, e.g. of a music input signal with a desired impulse response to compute an output
    • 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
    • G10H2250/545—Aliasing, i.e. preventing, eliminating or deliberately using aliasing noise, distortions or artifacts in sampled or synthesised waveforms, e.g. by band limiting, oversampling or undersampling, respectively

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Analogue/Digital Conversion (AREA)
HK168695A 1986-12-30 1995-11-02 Tone signal generation device employing a digital filter HK168695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61311285A JPH0754432B2 (en) 1986-12-30 1986-12-30 Music signal generator

Publications (1)

Publication Number Publication Date
HK168695A true HK168695A (en) 1995-11-10

Family

ID=18015294

Family Applications (1)

Application Number Title Priority Date Filing Date
HK168695A HK168695A (en) 1986-12-30 1995-11-02 Tone signal generation device employing a digital filter

Country Status (5)

Country Link
EP (1) EP0273447B1 (en)
JP (1) JPH0754432B2 (en)
DE (1) DE3785654T2 (en)
HK (1) HK168695A (en)
SG (1) SG6495G (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0285895A (en) * 1988-09-22 1990-03-27 Casio Comput Co Ltd Musical tone waveform synthesizing device for electronic musical instrument
DE3943796C2 (en) * 1988-11-19 2002-09-12 Sony Computer Entertainment Inc Source audio data generator
US5086475A (en) * 1988-11-19 1992-02-04 Sony Corporation Apparatus for generating, recording or reproducing sound source data
DE3938311C2 (en) * 1988-11-19 2002-03-28 Sony Computer Entertainment Inc Device for generating source sound data
DE69018687T2 (en) * 1989-04-21 1996-01-25 Yamaha Corp Music synthesizer.
US5194681A (en) * 1989-09-22 1993-03-16 Yamaha Corporation Musical tone generating apparatus
JP2576647B2 (en) * 1989-11-30 1997-01-29 ヤマハ株式会社 Waveform generator
JPH03221997A (en) * 1990-01-29 1991-09-30 Kawai Musical Instr Mfg Co Ltd Electronic musical instrument
JP2623942B2 (en) * 1990-09-05 1997-06-25 ヤマハ株式会社 Music signal generator
JP2722907B2 (en) * 1991-12-13 1998-03-09 ヤマハ株式会社 Waveform generator
US5416264A (en) * 1992-07-27 1995-05-16 Yamaha Corporation Waveform-forming device having memory storing non-compressed/compressed waveform samples
FR2973186A1 (en) 2011-03-22 2012-09-28 Sagemcom Broadband Sas METHOD AND DEVICE FOR CONFIGURING ON THE BASIS OF MANAGEMENT RULES
JP6079982B2 (en) * 2012-03-05 2017-02-15 カシオ計算機株式会社 Musical sound generating apparatus, musical sound generating method and program

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036096A (en) * 1974-07-11 1977-07-19 Nippon Gakki Seizo Kabushiki Kaisha Musical tone waveshape generator
JPS5851307B2 (en) * 1974-07-11 1983-11-15 ヤマハ株式会社 Hakei Hatsei Souchi
US4020332A (en) * 1975-09-24 1977-04-26 Bell Telephone Laboratories, Incorporated Interpolation-decimation circuit for increasing or decreasing digital sampling frequency
JPS5917838B2 (en) * 1977-11-01 1984-04-24 ヤマハ株式会社 Waveform generator for electronic musical instruments
US4245541A (en) * 1979-06-01 1981-01-20 Kawai Musical Instrument Mfg. Co., Ltd. Apparatus for reducing noise in digital to analog conversion
US4256003A (en) * 1979-07-19 1981-03-17 Kawai Musical Instrument Mfg. Co., Ltd. Note frequency generator for an electronic musical instrument
JPS572116A (en) * 1980-06-05 1982-01-07 Casio Comput Co Ltd Digital filter device
JPS572114A (en) * 1980-06-05 1982-01-07 Casio Comput Co Ltd Digital filter device
JPS572115A (en) * 1980-06-05 1982-01-07 Casio Comput Co Ltd Digital filter device
JPS5898793A (en) * 1981-12-08 1983-06-11 パイオニア株式会社 Voice synthesizer
JPS5952911A (en) * 1982-09-20 1984-03-27 Nec Corp Transversal filter
JPS61286899A (en) * 1985-06-14 1986-12-17 赤井電機株式会社 Electronic musical instrument
JPH0732343B2 (en) * 1985-04-17 1995-04-10 日本電気株式会社 Asynchronous sampling frequency conversion method
JPH0631989B2 (en) * 1985-11-14 1994-04-27 ロ−ランド株式会社 Waveform generator for electronic musical instruments
JPH0631989A (en) * 1992-07-16 1994-02-08 Olympus Optical Co Ltd Control method of printing of page printer

Also Published As

Publication number Publication date
SG6495G (en) 1995-06-16
JPH0754432B2 (en) 1995-06-07
EP0273447A3 (en) 1990-03-07
EP0273447B1 (en) 1993-04-28
DE3785654T2 (en) 1993-10-07
EP0273447A2 (en) 1988-07-06
DE3785654D1 (en) 1993-06-03
JPS63168695A (en) 1988-07-12

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20071228