Audio-Video Synchronization Across DTV Transport Interfaces: The Impossible Dream?

Metadata

Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 1999, No. 8, pp. 1–8
Abstract: The end-to-end DTV production, distribution, and broadcast system is a complex assemblage of many digital processing and storage devices. A number of interfaces are required to transport the compressed and uncompressed DTV audio and video signals between devices in the system. Each component of the DTV system imposes its own latency on the audio and/or video signals flowing through it, and the delays imposed on audio and video signals respectively are typically unequal, compromising audio-video synchronization. It is incumbent on those implementing DTV production, post production, and broadcast systems to be aware of the latencies present at each interface, and to take steps to correct synchronization errors at each stage, thereby preventing the buildup of lip sync errors. This paper will discuss the potential trouble spots within the DTV system.
Publication Date: 1999-11-01
DOI: 10.5594/M00341
Link: https://doi.org/10.5594/M00341
Author(s): Randall HoffnerABC, Inc., New York, New York
Copyright: © 1999 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. AES3–1992 (r. 1997) AES Recommended Practice for Digital Audio Engineering—Serial Transmission Format for Two-Channel Linearly Represented Digital Audio Data , New York , Audio Engineering Society , 1997 . EXTERNAL
10. SMPTE 302M—1997 Mapping of AES-3 Data Into MPEG-2 Transport Stream , White Plains , Society of Motion Picture and Television Engineers , 1997 . EXTERNAL
11. SMPTE 305M—1998 Serial Data Transport Interface , White Plains , Society of Motion Picture and Television Engineers , 1998 . EXTERNAL
12. Proposed SMPTE 324M—12 Channel Serial Interface for Digital Audio and Auxiliary Data, White Plains, SMPTE Journal 108 :8, August, 1999 , p. 600 – 603 . EXTERNAL
2. ATSC A/52–1995 Digital Audio Compression (AC-3) Standard , Washington , Advanced Television Systems Committee , 1995 . EXTERNAL
3. ATSC A/53–1995 ATSC Digital Television Standard , Washington , Advanced Television Systems Committee , 1995 . EXTERNAL
4. EBU Technical Recommendation R37–1997 The relative timing of the sound and vision components of a television signal , Geneva , European Broadcasting Union , 1997 . EXTERNAL
5. IEC 60958 (1989–02) Digital Audio Interface , Geneva , International Electrotechnical Commission , 1989 . EXTERNAL
6. ITU-T Rec. J.100 (June, 1990) Tolerances for Transmission Time Differences Between the Vision and Sound Components of a Television Signal , Geneva , International Telecommunications Union , 1990 . EXTERNAL
7. SMPTE 259M—1993 10-Bit 4:2:2 Component and 4fsc NTSC Composite Digital Signals—Serial Digital Interface , White Plains , Society of Motion Picture and Television Engineers , 1993 . EXTERNAL
8. SMPTE 292M—1996 Bit-Serial Digital Interface for High-Definition Television Systems , White Plains , Society of Motion Picture and Television Engineers , 1996 . EXTERNAL
9. SMPTE 299M—1997 24-Bit Digital Audio Format for HDTV Bit-Serial Interface , White Plains , Society of Motion Picture and Television Engineers , 1997 . EXTERNAL

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-M00341.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Randall Hoffner; Audio-Video Synchronization Across DTV Transport Interfaces: The Impossible Dream?, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at https://doi.org/10.5594/M00341

Snippet:

Randall Hoffner; Audio-Video Synchronization Across DTV Transport Interfaces: The Impossible Dream?, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at https://doi.org/10.5594/M00341

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">Randall Hoffner; <cite>Audio-Video Synchronization Across DTV Transport Interfaces: The Impossible Dream?</cite>, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at <a href="https://doi.org/10.5594/M00341" target="_blank" rel="noopener">https://doi.org/10.5594/M00341</a></span>

SMPTE's HTML Pub

Preview:

Randall Hoffner; Audio-Video Synchronization Across DTV Transport Interfaces: The Impossible Dream?, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999
doi: 10.5594/M00341
url: https://doi.org/10.5594/M00341

Snippet:

<li>
Randall Hoffner; <cite id="bib-10-5594-m00341">Audio-Video Synchronization Across DTV Transport Interfaces: The Impossible Dream?</cite>, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999
<span class="doi">10.5594/M00341</span>
</li>