EA201170559A1 - METHOD OF ANALYSIS OF DIGITAL MUSIC AUDIO SIGNAL - Google Patents

METHOD OF ANALYSIS OF DIGITAL MUSIC AUDIO SIGNAL

Info

Publication number
EA201170559A1
EA201170559A1 EA201170559A EA201170559A EA201170559A1 EA 201170559 A1 EA201170559 A1 EA 201170559A1 EA 201170559 A EA201170559 A EA 201170559A EA 201170559 A EA201170559 A EA 201170559A EA 201170559 A1 EA201170559 A1 EA 201170559A1
Authority
EA
Eurasian Patent Office
Prior art keywords
audio signal
musical audio
analysis
digital music
music audio
Prior art date
Application number
EA201170559A
Other languages
Russian (ru)
Inventor
Ларс Фернстрём
Риккардо Леонарди
Николас Скаринджелла
Original Assignee
Музеека С.А.
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 Музеека С.А. filed Critical Музеека С.А.
Publication of EA201170559A1 publication Critical patent/EA201170559A1/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
    • G10H1/36—Accompaniment arrangements
    • G10H1/38—Chord
    • G10H1/383—Chord detection and/or recognition, e.g. for correction, or automatic bass generation
    • 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
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/066—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for pitch analysis as part of wider processing for musical purposes, e.g. transcription, musical performance evaluation; Pitch recognition, e.g. in polyphonic sounds; Estimation or use of missing fundamental
    • 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
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/081—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for automatic key or tonality recognition, e.g. using musical rules or a knowledge base
    • 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
    • G10H2250/311—Neural networks for electrophonic musical instruments or musical processing, e.g. for musical recognition or control, automatic composition or improvisation

Abstract

Настоящее изобретение относится к способу представления музыкального аудиосигнала для анализа музыкального аудиосигнала (2) с целью выделения набора профилей семейств аккордов (CFP), содержащихся в музыкальном аудиосигнале (2), причем способ включает следующие шаги: а) применяют первый алгоритм (4) к музыкальному аудиосигналу (2) с целью выделения первичных данных (5), репрезентативных для тональности музыкального аудиосигнала (2), и b) применяют второй алгоритм (6) к указанным первичным данным (5) для получения вторичных данных (7), репрезентативных для тонального центра, содержащегося в первичных данных (5).The present invention relates to a method for representing a musical audio signal for analyzing a musical audio signal (2) in order to extract a set of chord family profiles (CFPs) contained in a musical audio signal (2), the method comprising the following steps: a) applying the first algorithm (4) to the musical audio signal (2) in order to extract primary data (5) representative of the tone of the musical audio signal (2), and b) apply the second algorithm (6) to said primary data (5) to obtain secondary data (7) representative of the tonal center contained in the primary data (5).

EA201170559A 2008-10-15 2008-10-15 METHOD OF ANALYSIS OF DIGITAL MUSIC AUDIO SIGNAL EA201170559A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/063911 WO2010043258A1 (en) 2008-10-15 2008-10-15 Method for analyzing a digital music audio signal

Publications (1)

Publication Number Publication Date
EA201170559A1 true EA201170559A1 (en) 2012-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EA201170559A EA201170559A1 (en) 2008-10-15 2008-10-15 METHOD OF ANALYSIS OF DIGITAL MUSIC AUDIO SIGNAL

Country Status (7)

Country Link
EP (1) EP2342708B1 (en)
JP (1) JP2012506061A (en)
CN (1) CN102187386A (en)
BR (1) BRPI0823192A2 (en)
CA (1) CA2740638A1 (en)
EA (1) EA201170559A1 (en)
WO (1) WO2010043258A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110254688A1 (en) * 2010-04-15 2011-10-20 Samsung Electronics Co., Ltd. User state recognition in a wireless communication system
US9263060B2 (en) 2012-08-21 2016-02-16 Marian Mason Publishing Company, Llc Artificial neural network based system for classification of the emotional content of digital music
US9257954B2 (en) * 2013-09-19 2016-02-09 Microsoft Technology Licensing, Llc Automatic audio harmonization based on pitch distributions
JP6671245B2 (en) * 2016-06-01 2020-03-25 株式会社Ｎｔｔドコモ Identification device
CN107135578B (en) * 2017-06-08 2020-01-10 复旦大学 Intelligent music chord-atmosphere lamp system based on TonaLighting adjusting technology
US11024288B2 (en) * 2018-09-04 2021-06-01 Gracenote, Inc. Methods and apparatus to segment audio and determine audio segment similarities
JP7375302B2 (en) * 2019-01-11 2023-11-08 ヤマハ株式会社 Acoustic analysis method, acoustic analysis device and program

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1091199A (en) * 1996-09-18 1998-04-10 Mitsubishi Electric Corp Recording and reproducing device
US6057502A (en) 1999-03-30 2000-05-02 Yamaha Corporation Apparatus and method for recognizing musical chords
JP3870727B2 (en) * 2001-06-20 2007-01-24 ヤマハ株式会社 Performance timing extraction method
JP2006202235A (en) * 2005-01-24 2006-08-03 Nara Institute Of Science & Technology Time-based phenomenon occurrence analysis apparatus and time-based phenomenon occurrence analysis method
JP2007041234A (en) * 2005-08-02 2007-02-15 Univ Of Tokyo Method for deducing key of music sound signal, and apparatus for deducing key
JP4722738B2 (en) * 2006-03-14 2011-07-13 三菱電機株式会社 Music analysis method and music analysis apparatus
JP4823804B2 (en) * 2006-08-09 2011-11-24 株式会社河合楽器製作所 Code name detection device and code name detection program
JP4214491B2 (en) * 2006-10-20 2009-01-28 ソニー株式会社 Signal processing apparatus and method, program, and recording medium
JP4315180B2 (en) 2006-10-20 2009-08-19 ソニー株式会社 Signal processing apparatus and method, program, and recording medium

Also Published As

Publication number Publication date
EP2342708A1 (en) 2011-07-13
BRPI0823192A2 (en) 2018-10-23
EP2342708B1 (en) 2012-07-18
WO2010043258A1 (en) 2010-04-22
CA2740638A1 (en) 2010-04-22
JP2012506061A (en) 2012-03-08
CN102187386A (en) 2011-09-14

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