Browse > Article

DTV Lip-Sync Test Using Embedded Audio-Video Time Indexed Signals  

한찬호 (경북대학교 전자전기컴퓨터학부)
송규익 (경북대학교 전자전기컴퓨터학부)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.41, no.3, 2004 , pp. 155-162 More about this Journal
Abstract
This paper concentrated on lip synchronization (lip sync) test for DTV with respect to audio and video signals using a finite digital bitstream In this paper, we propose a new lip sync test method which does not effect on the current program by use of the transient effect area test signals (TATS) and audio-video time index lip sync test signals (TILS).the experimental result shows that the time difference between audio and video signal can be easily measured by captured oscilloscope waveform at any time.
Keywords
lip sync; DTV; digital bitstream; transient effect area test signal;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ATSC, 'Transmission Measurement and Camp liance for Digital Television Rev. A,' ATSC Standard A/64A, May 2000
2 DVB, 'Digital Video Broadcasting (DVB); Measurement Guidelines for Digital Video Broad casting (DVB) systems,' ETR 290, 1997
3 KETI 연구원 HDTV 사업단, '지상파 디지털 텔레비전 방송 잠정 규격(안),' 1999. 6
4 V. Snell, B. Devlin, 'Test Card 'M' -do you get the picture?,' IEE Colloquium, pp 1-5, Mar. 1999
5 W. Sohn, and J. Kim, 'System test of digital DBS system for video and audio signals,' IEEE Transactions on Broadcasting, vol. 45, pp. 187-191, June 1999   DOI   ScienceOn
6 Snell & Wilcox Internet Site: http://www.snellwilcox.com
7 T. Settle, and I. Ligang, 'Digital bit stream generator for testing MPEG video decoders,' IEEE Transactions on Consumer Electronics, vol. 42, pp. 422-430, Aug. 1996   DOI   ScienceOn
8 B. Devlin, C. Ridley, 'The case for real time MPEG testing,' Broadcasting Convention, pp LP56-LP62, Sep. 1997
9 C. Han, K. Kim, K. Lee, and K. Sohng 'Elimination of Discontinuity Phenonon for Repeated Play of DTV Stream due to Playtime Mismatch Between ES and TS,' IEEE International Conference on Consumer Electronics, Los Angeles, USA, pp. 212-213, June 2002   DOI
10 SMPTE, 'Standard for television - 1920${\times}$1080 scanning and interface,' SMPTE 274M, 1998
11 Scientific Atlanta Internet Site: http://www.scientific.com
12 ANSI T1.502, 'System M-NTSC Television Signals -- Network Interface Specifications and Performance Parameters', June 24, 1998