A television talkback system is described which enables speech communication between studio centers, outside broadcast and news gathering sites. The speech signals are digitally encoded using low-bit rate CELP encoders and the data carried in teletext format during the television vertical blanking interval (VBI). Two channels can be conveyed within a single teletext line per field at a data rate of 7.6kb/s per channel. The system simplifies the provision of talkback circuits and can be used throughout the broadcast chain including the output from broadcast transmitters.

Authors: Spicer, Colin; Johnson, Andrew
Affiliation: BBC Research and Development, Tadworth, Surrey, U.K.
AES Conference: UK 9th Conference: Managing the Bit Budget (MBB) (May 1994)
Paper Number: MBB-14
Publication Date: May 1, 1994 Import into BibTeX
Subject: Managing the Bit Budget
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=6114

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes17)   /procuk/1994lo05/1591.pdf

Start a discussion about this paper!