CA2200447C - Synthese efficace de tonalites musicales produites par des excitations non lineaires - Google Patents

Synthese efficace de tonalites musicales produites par des excitations non lineaires Download PDF

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Publication number
CA2200447C
CA2200447C CA002200447A CA2200447A CA2200447C CA 2200447 C CA2200447 C CA 2200447C CA 002200447 A CA002200447 A CA 002200447A CA 2200447 A CA2200447 A CA 2200447A CA 2200447 C CA2200447 C CA 2200447C
Authority
CA
Canada
Prior art keywords
excitation
impulse response
resonator
filtering means
response
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.)
Expired - Fee Related
Application number
CA002200447A
Other languages
English (en)
Other versions
CA2200447A1 (fr
Inventor
Julius O. Smith, Iii
Scott A. Van Duyne
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.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
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 Leland Stanford Junior University filed Critical Leland Stanford Junior University
Priority claimed from PCT/US1996/006668 external-priority patent/WO1996036039A1/fr
Publication of CA2200447A1 publication Critical patent/CA2200447A1/fr
Application granted granted Critical
Publication of CA2200447C publication Critical patent/CA2200447C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G10H5/00—Instruments in which the tones are generated by means of electronic generators
    • G10H5/007—Real-time simulation of G10B, G10C, G10D-type instruments using recursive or non-linear techniques, e.g. waveguide networks, recursive algorithms
    • 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
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects
    • G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
    • G10H2210/281—Reverberation or echo
    • G10H2210/291—Reverberator using both direct, i.e. dry, and indirect, i.e. wet, signals or waveforms, indirect signals having sustained one or more virtual reflections
    • 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
    • G10H2250/041—Delay lines applied to musical processing
    • G10H2250/046—Delay lines applied to musical processing with intermediate taps
    • 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
    • G10H2250/315—Sound category-dependent sound synthesis processes [Gensound] for musical use; Sound category-specific synthesis-controlling parameters or control means therefor
    • G10H2250/441—Gensound string, i.e. generating the sound of a string instrument, controlling specific features of said sound
    • G10H2250/451—Plucked or struck string instrument sound synthesis, controlling specific features of said sound
    • 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
    • G10H2250/471—General musical sound synthesis principles, i.e. sound category-independent synthesis methods
    • G10H2250/511—Physical modelling or real-time simulation of the acoustomechanical behaviour of acoustic musical instruments using, e.g. waveguides or looped delay lines
    • G10H2250/515—Excitation circuits or excitation algorithms therefor
    • 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
    • G10H2250/471—General musical sound synthesis principles, i.e. sound category-independent synthesis methods
    • G10H2250/511—Physical modelling or real-time simulation of the acoustomechanical behaviour of acoustic musical instruments using, e.g. waveguides or looped delay lines
    • G10H2250/521—Closed loop models therefor, e.g. with filter and delay line
    • 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
    • G10H2250/471—General musical sound synthesis principles, i.e. sound category-independent synthesis methods
    • G10H2250/511—Physical modelling or real-time simulation of the acoustomechanical behaviour of acoustic musical instruments using, e.g. waveguides or looped delay lines
    • G10H2250/535—Waveguide or transmission line-based models

Landscapes

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

Abstract

Cette invention concerne un synthétiseur efficace à guide d'ondes numériques qui permet de simuler les tonalités produites par un élément vibrant excité de façon non linéaire et couplé à un résonateur, comme cela est le cas dans un piano. Dans un mode de réalisation préférée, le synthétiseur génère une impulsion d'excitation à partir d'une table contenant la réponse impulsionnelle de la caisse de résonance d'un piano. On peut également synthétiser l'impulsion d'excitation par filtrage du bruit blanc. Cette impulsion d'excitation est envoyée dans le filtre qui simule la collision entre le marteau et la corde du piano. Du fait que cette interaction marteau-corde n'est pas linéaire, les caractéristiques de ce filtre varient avec l'amplitude de la tonalité produite. L'impulsion d'excitation filtrée est ensuite transmise à un circuit de temporisation filtré qui met au point la vibration d'une corde de piano. Du fait que l'impulsion d'excitation contient déjà les effets du résonateur, il n'est pas nécessaire d'effectuer un filtrage supplémentaire de la tonalité produite par le circuit de temporisation pour mettre au point le résonateur.
CA002200447A 1995-05-10 1996-05-10 Synthese efficace de tonalites musicales produites par des excitations non lineaires Expired - Fee Related CA2200447C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US43874495A 1995-05-10 1995-05-10
US08/438,744 1995-05-10
PCT/US1996/006668 WO1996036039A1 (fr) 1995-05-10 1996-05-10 Synthese efficace de tonalites musicales produites par des excitations non lineaires

Publications (2)

Publication Number Publication Date
CA2200447A1 CA2200447A1 (fr) 1996-11-14
CA2200447C true CA2200447C (fr) 2006-12-05

Family

ID=37560810

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002200447A Expired - Fee Related CA2200447C (fr) 1995-05-10 1996-05-10 Synthese efficace de tonalites musicales produites par des excitations non lineaires

Country Status (1)

Country Link
CA (1) CA2200447C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009134166A1 (fr) * 2008-04-29 2009-11-05 Dmitry Edgarovich Elyashev Synthétiseur d’instrument musical simulé physiquement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009134166A1 (fr) * 2008-04-29 2009-11-05 Dmitry Edgarovich Elyashev Synthétiseur d’instrument musical simulé physiquement

Also Published As

Publication number Publication date
CA2200447A1 (fr) 1996-11-14

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Legal Events

Date Code Title Description
EEER Examination request
FZDC Discontinued application reinstated
MKLA Lapsed