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WO2007036844A3 - Method and apparatus for automatic structure analysis of audio - Google Patents

Method and apparatus for automatic structure analysis of audio Download PDF

Info

Publication number
WO2007036844A3
WO2007036844A3 PCT/IB2006/053388 IB2006053388W WO2007036844A3 WO 2007036844 A3 WO2007036844 A3 WO 2007036844A3 IB 2006053388 W IB2006053388 W IB 2006053388W WO 2007036844 A3 WO2007036844 A3 WO 2007036844A3
Authority
WO
WIPO (PCT)
Prior art keywords
audio
content item
audio content
structure analysis
automatic structure
Prior art date
Application number
PCT/IB2006/053388
Other languages
French (fr)
Other versions
WO2007036844A2 (en
Inventor
Aweke N Lemma
Francesco F M Zijderveld
Original Assignee
Koninkl Philips Electronics Nv
Aweke N Lemma
Francesco F M Zijderveld
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 Koninkl Philips Electronics Nv, Aweke N Lemma, Francesco F M Zijderveld filed Critical Koninkl Philips Electronics Nv
Publication of WO2007036844A2 publication Critical patent/WO2007036844A2/en
Publication of WO2007036844A3 publication Critical patent/WO2007036844A3/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • 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
    • G10H1/0008—Associated control or indicating means
    • G10H1/0025—Automatic or semi-automatic music composition, e.g. producing random music, applying rules from music theory or modifying a musical 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
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/46—Volume control
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • 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
    • G10H2210/076—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 extraction of timing, tempo; Beat detection
    • 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
    • G10H2210/101—Music Composition or musical creation; Tools or processes therefor
    • G10H2210/125—Medley, i.e. linking parts of different musical pieces in one single piece, e.g. sound collage, DJ mix
    • 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
    • G10H2250/025—Envelope processing of music signals in, e.g. time domain, transform domain or cepstrum domain
    • G10H2250/031—Spectrum envelope processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Auxiliary Devices For Music (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

Method and apparatus for determining the intra and/or outro of an audio content item in which the location (EOIBS; SOOBS) at which the beat strength of the audio content item remains above a first threshold level for a minimum time interval and the location (EOILVL; SOOLVL) at which the signal level of the audio content item remained above a second threshold level for a minimum time interval are used to identify the end of the intra (EOI) and/or start of the outro (SOO).
PCT/IB2006/053388 2005-09-30 2006-09-20 Method and apparatus for automatic structure analysis of audio WO2007036844A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05109084 2005-09-30
EP05109084.3 2005-09-30

Publications (2)

Publication Number Publication Date
WO2007036844A2 WO2007036844A2 (en) 2007-04-05
WO2007036844A3 true WO2007036844A3 (en) 2007-07-19

Family

ID=37852301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/053388 WO2007036844A2 (en) 2005-09-30 2006-09-20 Method and apparatus for automatic structure analysis of audio

Country Status (1)

Country Link
WO (1) WO2007036844A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10101960B2 (en) 2015-05-19 2018-10-16 Spotify Ab System for managing transitions between media content items

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258879A2 (en) * 2001-05-18 2002-11-20 Pioneer Corporation Beat density detecting apparatus and information playback apparatus
EP1320101A2 (en) * 2001-12-13 2003-06-18 Matsushita Electric Industrial Co., Ltd. Sound critical points retrieving apparatus and method, sound reproducing apparatus and sound signal editing apparatus using sound critical points retrieving method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258879A2 (en) * 2001-05-18 2002-11-20 Pioneer Corporation Beat density detecting apparatus and information playback apparatus
EP1320101A2 (en) * 2001-12-13 2003-06-18 Matsushita Electric Industrial Co., Ltd. Sound critical points retrieving apparatus and method, sound reproducing apparatus and sound signal editing apparatus using sound critical points retrieving method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AWEKE N. LEMMA: "AutoDJ: the art of electronic music mixing", PROC. SPIE MULTIMEDIA SYSTEMS AND APPLICATIONS VIII, vol. 6015, October 2005 (2005-10-01), XP002426092, Retrieved from the Internet <URL:http://spiedl.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PSISDG006015000001601517000001&idtype=cvips&prog=normal> [retrieved on 20070321] *
TZANETAKIS G; ESSL G; COOK P: "Human perception and computer extraction of musical beat strength", DAFX02, 5TH INTERNATIONAL CONFERENCE ON DIGITAL AUDIO EFFECTS, 26 September 2002 (2002-09-26) - 28 September 2002 (2002-09-28), Hamburg, Germany, XP002426091, Retrieved from the Internet <URL:http://www.cs.uvic.ca/~gtzan/work/pubs/dafx02gtzan.pdf> [retrieved on 20070321] *

Also Published As

Publication number Publication date
WO2007036844A2 (en) 2007-04-05

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