Nothing Special   »   [go: up one dir, main page]

CA2200447A1 - Efficient synthesis of musical tones having nonlinear excitations - Google Patents

Efficient synthesis of musical tones having nonlinear excitations

Info

Publication number
CA2200447A1
CA2200447A1 CA002200447A CA2200447A CA2200447A1 CA 2200447 A1 CA2200447 A1 CA 2200447A1 CA 002200447 A CA002200447 A CA 002200447A CA 2200447 A CA2200447 A CA 2200447A CA 2200447 A1 CA2200447 A1 CA 2200447A1
Authority
CA
Canada
Prior art keywords
excitation pulse
piano
resonator
string
nonlinear
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
CA002200447A
Other languages
French (fr)
Other versions
CA2200447C (en
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
Individual
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 Individual filed Critical Individual
Priority claimed from PCT/US1996/006668 external-priority patent/WO1996036039A1/en
Publication of CA2200447A1 publication Critical patent/CA2200447A1/en
Application granted granted Critical
Publication of CA2200447C publication Critical patent/CA2200447C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

An efficient digital waveguide synthesizer is disclosed for simulating the tones produced by a non-linearly excited vibrational element coupled to a resonator, such as in a piano. In a preferred embodiment, the synthesizer creates an excitation pulse from a table containing the impulse response of a piano sound board and enclosure. Alternately, this excitation pulse can be synthesized by filtering white noise.
The excitation pulse is fed into the filter that simulates the collision of the piano hammer and string. Because the hammer-string interaction is nonlinear, the characteristics of this filter vary with the amplitude of the tone produced. The filtered excitation pulse is then fed into a filtered delay line loop which models the vibration of a piano string. Because the excitation pulse already contains effects of the resonator, the tone produced by the delay line loop does not require additional filtering in order to model the resonator.
CA002200447A 1995-05-10 1996-05-10 Efficient synthesis of musical tones having nonlinear excitations Expired - Fee Related CA2200447C (en)

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 (en) 1995-05-10 1996-05-10 Efficient synthesis of musical tones having nonlinear excitations

Publications (2)

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

Family

ID=37560810

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002200447A Expired - Fee Related CA2200447C (en) 1995-05-10 1996-05-10 Efficient synthesis of musical tones having nonlinear excitations

Country Status (1)

Country Link
CA (1) CA2200447C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2364956C1 (en) * 2008-04-29 2009-08-20 Дмитрий Эдгарович Эльяшев Synthesiser of musical instrument with physical modelling

Also Published As

Publication number Publication date
CA2200447C (en) 2006-12-05

Similar Documents

Publication Publication Date Title
ATE208530T1 (en) EFFICIENT SYNTHESIS OF MUSICAL SOUNDS GENERATED BY NON-LINEAR DRIVE
EP0922257A1 (en) Method for inharmonic tone generation using a coupled mode digital filter
US5500486A (en) Physical model musical tone synthesis system employing filtered delay loop
US5352849A (en) Musical tone synthesizing apparatus simulating interaction between plural strings
US5180877A (en) Musical tone synthesizing apparatus using wave guide synthesis
CA2200447A1 (en) Efficient synthesis of musical tones having nonlinear excitations
JP2745923B2 (en) Electronic musical instrument
KR920022197A (en) Instrument sound signal forming device
US5223657A (en) Musical tone generating device with simulation of harmonics technique of a stringed instrument
Hsu et al. Percussion synthesis using loopback frequency modulation oscillators
JP2940011B2 (en) Music synthesizer
SE8006850L (en) LJUDSYNTETISATOR
JP3090667B2 (en) Music synthesizer
JP2768195B2 (en) Music synthesizer
JPH0883067A (en) Musical tone controller of electronic musical instrument
US5206448A (en) Musical tone generation device for synthesizing wind or string instruments
JPH04204599A (en) Musical sound signal generating device
JP2782831B2 (en) Music synthesizer
JP2782836B2 (en) Music synthesizer
US5741994A (en) Waveguide musical tone synthesizing apparatus with noise modulation of waveguide coupling
JPS58168097A (en) Voice synthesizer
JP2940012B2 (en) Music synthesizer
JPH0546169A (en) Musical sound synthesizing device
Smith et al. Overview of the commuted piano synthesis technique
JPH07175475A (en) Electronic musical instrument

Legal Events

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