EP1387514A3 - Signal comparison method and apparatus - Google Patents

Signal comparison method and apparatus Download PDF

Info

Publication number
EP1387514A3
EP1387514A3 EP03254607A EP03254607A EP1387514A3 EP 1387514 A3 EP1387514 A3 EP 1387514A3 EP 03254607 A EP03254607 A EP 03254607A EP 03254607 A EP03254607 A EP 03254607A EP 1387514 A3 EP1387514 A3 EP 1387514A3
Authority
EP
European Patent Office
Prior art keywords
signal
audio
signals
provides
audio signals
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.)
Withdrawn
Application number
EP03254607A
Other languages
German (de)
French (fr)
Other versions
EP1387514A2 (en
Inventor
Yuan-Xing British Broadcasting Corp. Zheng
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting 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 British Broadcasting Corp filed Critical British Broadcasting Corp
Publication of EP1387514A2 publication Critical patent/EP1387514A2/en
Publication of EP1387514A3 publication Critical patent/EP1387514A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting
    • H04H20/14—Arrangements for observation, testing or troubleshooting for monitoring programmes
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/56—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
    • H04H60/58—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 of audio
    • 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
    • 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
    • G10H2240/141—Library retrieval matching, i.e. any of the steps of matching an inputted segment or phrase with musical database contents, e.g. query by humming, singing or playing; the steps may include, e.g. musical analysis of the input, musical feature extraction, query formulation, or details of the retrieval process
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The invention provides a method and apparatus for determining the relative time difference or delay between first and second audio signals that represent substantially the same audio content. The invention also provides a method and an apparatus for determining whether two audio signals contain the same audio content.
A comparison of the two audio signals is carried out using a low-bit representation of each signal that is generated using the dominant frequency within successive portions or frames of the signal. This audio representation can also be used as a means of comparing two video programmes of which the audio signal is a part.
As the analysis is based on the frequencies present within the audio signal, it can for example, be performed more quickly than an analysis based on the energy of the audio signal. As a resul-t, the determination can be made in real time, allowing it to be advantageously used in the field of broadcasting to confirm that a signal being transmitted by a regional broadcasting centre is in accordance with the master signal being sent to it by a programme originator.
The invention may also be used to synchronise two like signals with each other.
EP03254607A 2002-07-31 2003-07-24 Signal comparison method and apparatus Withdrawn EP1387514A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0217772A GB2391322B (en) 2002-07-31 2002-07-31 Signal comparison method and apparatus
GB0217772 2002-07-31

Publications (2)

Publication Number Publication Date
EP1387514A2 EP1387514A2 (en) 2004-02-04
EP1387514A3 true EP1387514A3 (en) 2008-12-10

Family

ID=9941474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03254607A Withdrawn EP1387514A3 (en) 2002-07-31 2003-07-24 Signal comparison method and apparatus

Country Status (2)

Country Link
EP (1) EP1387514A3 (en)
GB (1) GB2391322B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050080576A1 (en) * 2003-10-10 2005-04-14 Dickerson Robert T. Method and system for frequency domain time correlation
EP2774391A4 (en) * 2011-10-31 2016-01-20 Nokia Technologies Oy Audio scene rendering by aligning series of time-varying feature data
KR101315970B1 (en) * 2012-05-23 2013-10-08 (주)엔써즈 Apparatus and method for recognizing content using audio signal
CN110718237B (en) * 2018-07-12 2023-08-18 阿里巴巴集团控股有限公司 Crosstalk data detection method and electronic equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226718A (en) * 1988-11-17 1990-07-04 British Broadcasting Corp Aligning two audio signals
WO2000079709A1 (en) * 1999-06-18 2000-12-28 Apel Steven G Audience survey system, and systems and methods for compressing and correlating audio signals
WO2001004870A1 (en) * 1999-07-08 2001-01-18 Constantin Papaodysseus Method of automatic recognition of musical compositions and sound signals
CA2310769A1 (en) * 1999-10-27 2001-04-27 Nielsen Media Research, Inc. Audio signature extraction and correlation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099456A (en) * 1990-06-13 1992-03-24 Hughes Aircraft Company Passive locating system
DE4243831A1 (en) * 1992-12-23 1994-06-30 Daimler Benz Ag Procedure for estimating the runtime on disturbed voice channels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226718A (en) * 1988-11-17 1990-07-04 British Broadcasting Corp Aligning two audio signals
WO2000079709A1 (en) * 1999-06-18 2000-12-28 Apel Steven G Audience survey system, and systems and methods for compressing and correlating audio signals
WO2001004870A1 (en) * 1999-07-08 2001-01-18 Constantin Papaodysseus Method of automatic recognition of musical compositions and sound signals
CA2310769A1 (en) * 1999-10-27 2001-04-27 Nielsen Media Research, Inc. Audio signature extraction and correlation

Also Published As

Publication number Publication date
EP1387514A2 (en) 2004-02-04
GB2391322A (en) 2004-02-04
GB0217772D0 (en) 2002-09-11
GB2391322B (en) 2005-12-14

Similar Documents

Publication Publication Date Title
EP1610588A3 (en) Audio signal processing
WO2002049356A3 (en) Automatic multi-camera video composition
CA2257444A1 (en) Method and apparatus for localization of an acoustic source
CA2335486A1 (en) Apparatus and method for adjusting audio equipment in acoustic environments
EP0986269A3 (en) In-service realtime picture quality analysis
EP1562401A3 (en) Sound reproduction apparatus and sound reproduction method
AU1704900A (en) System and method for determining the audience of digital radio programmes broadcast through the internet
WO2003060630A3 (en) Method and apparatus for identifying a digital audio signal
EP1947648A3 (en) Audio/video reproducing apparatus and method
DE60021708D1 (en) JUFF BUFFER AND METHOD FOR ADJUSTING IT
DE602005017358D1 (en) METHOD AND DEVICE FOR TIMING A SIGNAL
EP1722598A3 (en) Audio device and method for generating surround sound
AU2003263270A1 (en) Method and apparatus for classifying sound signals
EP1372340A3 (en) Method and apparatus for dynamic contrast improvement in video pictures
EP1267591A3 (en) Sound signal playback machine and method thereof
EP1901457A3 (en) Fast channel switching method and apparatus for digital broadcast receiver
EP1641317A3 (en) Storage Medium Storing Stereo Enhancement Processing Program, Stereo Enhancement Apparatus and Stereo Enhancement Method
US7088832B1 (en) IFB system apparatus and method
DE60103008D1 (en) METHOD AND DEVICE FOR ECHO REDUCTION
EP1387514A3 (en) Signal comparison method and apparatus
EP1511358A3 (en) Automatic sound field correction apparatus and computer program therefor
EP1753231A3 (en) Method and apparatus for processing video signal
WO2007021669A3 (en) Method and apparatus for digital mts receiver
ATE360326T1 (en) METHOD AND DEVICE FOR ADJUSTING THE TIME DIFFERENCE OF VIDEO AND AUDIO SIGNAL IN A TELEVISION
KR20160065510A (en) Method for producing video file or streaming packet including non-audible sound wave and television broadcasting system using the method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20090610

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20091029

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150203