WO2002037316A3 - Method and apparatus for creating a unique audio signature - Google Patents

Method and apparatus for creating a unique audio signature Download PDF

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Publication number
WO2002037316A3
WO2002037316A3 PCT/US2001/050295 US0150295W WO0237316A3 WO 2002037316 A3 WO2002037316 A3 WO 2002037316A3 US 0150295 W US0150295 W US 0150295W WO 0237316 A3 WO0237316 A3 WO 0237316A3
Authority
WO
WIPO (PCT)
Prior art keywords
creating
signature
work
audio signature
unique audio
Prior art date
Application number
PCT/US2001/050295
Other languages
French (fr)
Other versions
WO2002037316A2 (en
Inventor
Erling H Wold
Thomas L Blum
Douglas F Keislar
James A Wheaton
Original Assignee
Audible Magic 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 Audible Magic Corp filed Critical Audible Magic Corp
Priority to AU2002234115A priority Critical patent/AU2002234115A1/en
Priority to EP01985137A priority patent/EP1354276B1/en
Priority to DE60131893T priority patent/DE60131893T2/en
Publication of WO2002037316A2 publication Critical patent/WO2002037316A2/en
Publication of WO2002037316A3 publication Critical patent/WO2002037316A3/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
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
    • 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
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/121—Musical libraries, i.e. musical databases indexed by musical parameters, wavetables, indexing schemes using musical parameters, musical rule bases or knowledge bases, e.g. for automatic composing methods
    • G10H2240/131—Library retrieval, i.e. searching a database or selecting a specific musical piece, segment, pattern, rule or parameter set
    • G10H2240/135—Library retrieval index, i.e. using an indexing scheme to efficiently retrieve a music piece
    • 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
    • G10H2250/215—Transforms, i.e. mathematical transforms into domains appropriate for musical signal processing, coding or compression
    • G10H2250/221—Cosine transform; DCT [discrete cosine transform], e.g. for use in lossy audio compression such as MP3
    • 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
    • G10H2250/261—Window, i.e. apodization function or tapering function amounting to the selection and appropriate weighting of a group of samples in a digital signal within some chosen time interval, outside of which it is zero valued

Abstract

A method and apparatus for creating a signature of a sampled work in real-time is disclosed herein. Unique signatures of an unknown audio work are created by segmenting a file into segments having predetermined segment and hop sizes. The signature then may be compared against reference signatures. One aspect may be characterized in that the hop size of the sampled work signature is less than the hop size of reference signatures. A method for identifying an unknown audio work is also disclosed.
PCT/US2001/050295 2000-11-03 2001-10-26 Method and apparatus for creating a unique audio signature WO2002037316A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2002234115A AU2002234115A1 (en) 2000-11-03 2001-10-26 Method and apparatus for creating a unique audio signature
EP01985137A EP1354276B1 (en) 2000-11-03 2001-10-26 Method and apparatus for creating a unique audio signature
DE60131893T DE60131893T2 (en) 2000-11-03 2001-10-26 METHOD AND DEVICE FOR PRODUCING UNIQUE AUDIO SIGNATURES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/706,227 US7562012B1 (en) 2000-11-03 2000-11-03 Method and apparatus for creating a unique audio signature
US09/706,227 2000-11-03

Publications (2)

Publication Number Publication Date
WO2002037316A2 WO2002037316A2 (en) 2002-05-10
WO2002037316A3 true WO2002037316A3 (en) 2003-08-21

Family

ID=24836728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/050295 WO2002037316A2 (en) 2000-11-03 2001-10-26 Method and apparatus for creating a unique audio signature

Country Status (7)

Country Link
US (2) US7562012B1 (en)
EP (1) EP1354276B1 (en)
AT (1) ATE381088T1 (en)
AU (1) AU2002234115A1 (en)
DE (1) DE60131893T2 (en)
ES (1) ES2296824T3 (en)
WO (1) WO2002037316A2 (en)

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