WO2007036844A3 - Method and apparatus for automatic structure analysis of audio - Google Patents
Method and apparatus for automatic structure analysis of audio Download PDFInfo
- 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
Links
Classifications
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- 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).
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)
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)
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 |
-
2006
- 2006-09-20 WO PCT/IB2006/053388 patent/WO2007036844A2/en active Application Filing
Patent Citations (2)
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)
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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