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The advent of DVB-T gives a realistic opportunity to provide remote interaction between the broadcaster and viewer. The in-band return channel (e.g. 1 kbit/s) using the UHF television band is studied in this document.
Recommendation that broadcasters wishing to exchange recording internationally for programme viewing should use the VHS format.
Recommendation that specifies a <CodingHistory> field in the <bext> chunk of the BWF with which to record the coding history of the audio signal. This document references EBU Tech 3285, EBU R85 and EBU N22.
Recommendation that when shooting film for television, ground glasses should be used in film cameras that show the camera aperture and the maximum safe scanned area for the film format (outlined in an Appendix). This document references EBU R86 and EBU R95.
Recommendation concerning the composition of reference audio signals on tape leaders intended for use in the exchange of TV programmes. This document references EBU R38 and EBU R48.
Recommendation defining the pixels that represent the active picture area in digital signals conforming to ITU-R Rec. BT.601.
Recommended signalling for audio transmission modes in the AES3 audio interace (AES/EBU audio interface, specified in EBU Tech. 3250)
Recommendation setting out the critical environmental parameters for the proper storage of processed acetate motion picture film. This document references EBU Tech 3289 and EBU R74.
Recommendation of an operational alignment procedure for Betacam SP equipment used for international television programme exchange. This document references EBU Rec. R38, EBU Rec. R49, EBU Tech. 3219 and EBU I17.
Recommendation specifying the hybrid optical/electrical connectors to be used between certain camera heads (requiring fibre optical interconnects) and their CCUs.
The EBU has standardised the BWF file format for sound programme material. Recordable data discs such as CD-R and DVD-R have many attractive features for the exchange of such sound programme files.
This is the report of the EBU Webcasting Project Group. It was published in June 1999 and as the technology has evolved considerably since it was written it should be considered as a historical text.