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GB0607215D0 - Method and apparatus for measuring audio/video sync delay - Google Patents

Method and apparatus for measuring audio/video sync delay

Info

Publication number
GB0607215D0
GB0607215D0 GBGB0607215.1A GB0607215A GB0607215D0 GB 0607215 D0 GB0607215 D0 GB 0607215D0 GB 0607215 A GB0607215 A GB 0607215A GB 0607215 D0 GB0607215 D0 GB 0607215D0
Authority
GB
United Kingdom
Prior art keywords
video sync
sync delay
measuring audio
audio
measuring
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.)
Granted
Application number
GBGB0607215.1A
Other versions
GB2437123A (en
GB2437123B (en
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.)
Tektronix International Sales GmbH
Original Assignee
VQUAL Ltd
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 VQUAL Ltd filed Critical VQUAL Ltd
Priority to GB0607215A priority Critical patent/GB2437123B/en
Publication of GB0607215D0 publication Critical patent/GB0607215D0/en
Priority to EP07732245A priority patent/EP2005762A1/en
Priority to PCT/GB2007/001191 priority patent/WO2007116205A1/en
Priority to JP2009504802A priority patent/JP5025722B2/en
Publication of GB2437123A publication Critical patent/GB2437123A/en
Application granted granted Critical
Publication of GB2437123B publication Critical patent/GB2437123B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4341—Demultiplexing of audio and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2368—Multiplexing of audio and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8547—Content authoring involving timestamps for synchronizing content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Receiver Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
GB0607215A 2006-04-10 2006-04-10 Method and apparatus for measuring audio/video sync delay Active GB2437123B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0607215A GB2437123B (en) 2006-04-10 2006-04-10 Method and apparatus for measuring audio/video sync delay
EP07732245A EP2005762A1 (en) 2006-04-10 2007-03-30 Method and apparatus for measuring audio/video sync delay
PCT/GB2007/001191 WO2007116205A1 (en) 2006-04-10 2007-03-30 Method and apparatus for measuring audio/video sync delay
JP2009504802A JP5025722B2 (en) 2006-04-10 2007-03-30 Audio / video synchronization delay measuring method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0607215A GB2437123B (en) 2006-04-10 2006-04-10 Method and apparatus for measuring audio/video sync delay

Publications (3)

Publication Number Publication Date
GB0607215D0 true GB0607215D0 (en) 2006-05-17
GB2437123A GB2437123A (en) 2007-10-17
GB2437123B GB2437123B (en) 2011-01-26

Family

ID=36539692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0607215A Active GB2437123B (en) 2006-04-10 2006-04-10 Method and apparatus for measuring audio/video sync delay

Country Status (4)

Country Link
EP (1) EP2005762A1 (en)
JP (1) JP5025722B2 (en)
GB (1) GB2437123B (en)
WO (1) WO2007116205A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112601077A (en) * 2020-12-11 2021-04-02 杭州当虹科技股份有限公司 Automatic encoder delay measuring method based on audio

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009115121A2 (en) * 2008-03-19 2009-09-24 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for measuring audio-video time skew and end-to-end delay
JP5160950B2 (en) * 2008-04-25 2013-03-13 株式会社タイトー Timing correction program, portable terminal, and processing timing synchronization method
US20110170537A1 (en) * 2010-01-08 2011-07-14 Marius Ungureanu One Way and Round Trip Delays Using Telephony In-Band Tones
CN103796006A (en) * 2012-10-30 2014-05-14 中兴通讯股份有限公司 System and method for labial sound synchronization test
CN106358039B (en) * 2016-09-07 2019-02-01 深圳Tcl数字技术有限公司 Sound draws synchronous detecting method and device
GB2586986B (en) * 2019-09-10 2023-05-24 Hitomi Ltd Signal variation measurement
CN112351273B (en) * 2020-11-04 2022-03-01 新华三大数据技术有限公司 Video playing quality detection method and device
CN112601078B (en) * 2020-12-11 2022-07-26 杭州当虹科技股份有限公司 Automatic encoder delay measuring method based on video

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326102A (en) * 1980-02-04 1982-04-20 Msi Data Corporation Audio data transmission device with coupling device
JPH05236513A (en) * 1992-02-21 1993-09-10 Shibasoku Co Ltd Method for counting transmission delay time difference between television video signal and audio signal
US6836295B1 (en) * 1995-12-07 2004-12-28 J. Carl Cooper Audio to video timing measurement for MPEG type television systems
US5818520A (en) * 1996-02-12 1998-10-06 Tektronix, Inc. Programmable instrument for automatic measurement of compressed video quality
EP0888019A1 (en) * 1997-06-23 1998-12-30 Hewlett-Packard Company Method and apparatus for measuring the quality of a video transmission
US6208745B1 (en) * 1997-12-30 2001-03-27 Sarnoff Corporation Method and apparatus for imbedding a watermark into a bitstream representation of a digital image sequence
GB9804071D0 (en) * 1998-02-27 1998-04-22 Ridgeway Systems And Software Audio-video telephony
US6414960B1 (en) * 1998-12-29 2002-07-02 International Business Machines Corp. Apparatus and method of in-service audio/video synchronization testing
JP2001298757A (en) * 2000-04-11 2001-10-26 Nippon Hoso Kyokai <Nhk> Video and audio delay time difference measuring device
JP2003259314A (en) * 2002-02-26 2003-09-12 Nippon Hoso Kyokai <Nhk> Video audio synchronization method and system thereof
JP2004158913A (en) * 2002-11-01 2004-06-03 Canon Inc Audiovisual processor
JP2004242130A (en) * 2003-02-07 2004-08-26 Nippon Hoso Kyokai <Nhk> Signal generating device and method for measuring video/audio transmission time difference, and signal analysis device and method therefor
KR100499037B1 (en) * 2003-07-01 2005-07-01 엘지전자 주식회사 Method and apparatus of dtv lip-sync test
WO2005025224A1 (en) * 2003-09-02 2005-03-17 Sony Corporation Content reception device, video/audio output timing control method, and content providing system
US20050219366A1 (en) * 2004-03-31 2005-10-06 Hollowbush Richard R Digital audio-video differential delay and channel analyzer
CN100442858C (en) * 2005-10-11 2008-12-10 华为技术有限公司 Lip synchronous method for multimedia real-time transmission in packet network and apparatus thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112601077A (en) * 2020-12-11 2021-04-02 杭州当虹科技股份有限公司 Automatic encoder delay measuring method based on audio
CN112601077B (en) * 2020-12-11 2022-07-26 杭州当虹科技股份有限公司 Automatic encoder delay measuring method based on audio

Also Published As

Publication number Publication date
GB2437123A (en) 2007-10-17
WO2007116205A1 (en) 2007-10-18
GB2437123B (en) 2011-01-26
EP2005762A1 (en) 2008-12-24
JP5025722B2 (en) 2012-09-12
JP2009533920A (en) 2009-09-17
WO2007116205A9 (en) 2009-04-09

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Legal Events

Date Code Title Description
COOA Change in applicant's name or ownership of the application

Owner name: TEKTRONIX INTERNATIONAL SALES GMBH

Free format text: FORMER APPLICANT(S): TEKTRONIX BRISTOL LIMITED

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20190411 AND 20190417

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20210311 AND 20210317