HK89994A - Musical tone producing device of waveshape memory readout type - Google Patents

Musical tone producing device of waveshape memory readout type Download PDF

Info

Publication number
HK89994A
HK89994A HK899994A HK899994A HK89994A HK 89994 A HK89994 A HK 89994A HK 899994 A HK899994 A HK 899994A HK 899994 A HK899994 A HK 899994A HK 89994 A HK89994 A HK 89994A
Authority
HK
Hong Kong
Prior art keywords
waveshape
tone
level
memory
touch
Prior art date
Application number
HK899994A
Other languages
English (en)
French (fr)
Inventor
Hideo Suzuki
Original Assignee
Yamaha Corporation
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 Corporation filed Critical Yamaha Corporation
Publication of HK89994A publication Critical patent/HK89994A/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
    • 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
    • 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
    • G10H1/055—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 switches with variable impedance elements
    • 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
    • G10H2250/095—Filter coefficient interpolation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/09—Filtering

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (1)

  1. Musiktonerzeugungsvorrichtung vom Wellenformspeicherauslesetyp, mit:    einer Wellenformspeichereinrichtung (12A;12B) zum Speichern von Wellenformdaten eines Tones im Digitalformat;    einer mit der Wellenformspeichereinrichtung (12A;12B) verbundene Ausleseeinrichtung zum Auslesen der Wellenformdaten aus der Wellenformspeichereinrichtung mit einer einer Höhe eines zu erzeugenden Musiktones entsprechenden Rate;    einer Steuerparametererzeugungseinrichtung (17A;17B) zur Erzeugung eines Tonfarbensteuerparameters, der mit der Zeit von dem Zeitpunkt an variiert, an dem die Ausleseeinrichtung mit dem Auslesen der Wellenformdaten beginnt;    einer Filtereinrichtung (14) zur Steuerung der Tonfarbencharakteristik der entsprechend den von der Steuerparametererzeugungseinrichtung erzeugten Tonfarbenparametern aus der Wellenformspeichereinrichtung (12A;12B) ausgelesenen Wellenformdaten,    einer Pegelinformationserzeugungseinrichtung (18;21) zur Erzeugung von Pegelinformation, die ebenfalls mit der Zeit von dem Zeitpunkt an variiert, an dem die Ausleseeinrichtung auf ein einen Startzeitpunkt des Musiktones anzeigendes Signal hin mit dem Auslesen der Wellenformdaten beginnt; und    einer mit der Pegelinformationserzeugungseinrichtung (18;21) verbundenen Pegelsteuereinrichtung (19;23) zum Modifizieren der Wellenformdaten entsprechend der Pegelinformation, so daß der Amplitudenpegel als Antwort auf die Pegelinformation variiert,    dadurch gekennzeichnet, daß    die Wellenformspeichereinrichtung (12A;12B) Wellenformdaten speichert, die einen bestimmten Teil einer vollständigen Tonwellenform vom Anfang bis zum Ende des Klingens eines Musiktones darstellen, der bestimmte Teil ein Teil mit mehreren Perioden des Musiktones ist, die Tonfarbe des bestimmten Teils mit der Zeit variiert und der Hüllkurvenamplitudenpegel des bestimmten Teils im wesentlichen konstant ist, und    daß die Filtereinrichtung (14) eine Digitalfiltereinrichtung ist und die Pegelsteuereinrichtung (19;23) hinter der Digitalfiltereinrichtung vorgesehen ist.
HK899994A 1983-09-02 1994-09-01 Musical tone producing device of waveshape memory readout type HK89994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58160429A JPS6052895A (ja) 1983-09-02 1983-09-02 楽音信号発生装置

Publications (1)

Publication Number Publication Date
HK89994A true HK89994A (en) 1994-09-09

Family

ID=15714736

Family Applications (2)

Application Number Title Priority Date Filing Date
HK899994A HK89994A (en) 1983-09-02 1994-09-01 Musical tone producing device of waveshape memory readout type
HK132895A HK132895A (en) 1983-09-02 1995-08-24 Musical tone producing device of waveshape memory readout type

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK132895A HK132895A (en) 1983-09-02 1995-08-24 Musical tone producing device of waveshape memory readout type

Country Status (5)

Country Link
US (2) US4738179A (de)
EP (1) EP0140008B1 (de)
JP (1) JPS6052895A (de)
DE (2) DE3486280T2 (de)
HK (2) HK89994A (de)

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Also Published As

Publication number Publication date
DE3486280D1 (de) 1994-03-31
JPS647400B2 (de) 1989-02-08
DE3483810D1 (de) 1991-02-07
HK132895A (en) 1995-09-01
JPS6052895A (ja) 1985-03-26
EP0140008B1 (de) 1991-01-02
US4738179A (en) 1988-04-19
DE3486280T2 (de) 1994-06-09
US4843938A (en) 1989-07-04
EP0140008A1 (de) 1985-05-08

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Effective date: 20040827

PE Patent expired