14-Sep-99

Dolby Digital 5.1 Audio For DVB

At the International Broadcasting Convention (IBC) in Amsterdam (September 10-14, 1999) Dolby Laboratories ran a technology demonstration of Dolby Digital 5.1 audio, as part of a DVB-compliant broadcast system. Starting from the VTR, through a DP569 Dolby Digital encoder and an MPEG video encoder to the consumer set-top box (STB), end-to-end transport of high-quality, Dolby Digital 5.1-channel audio from broadcaster to home was demonstrated. The demonstration showed how a single multichannel audio bitstream can be decoded as a full 5.1 track, or alternatively in Dolby Surround, stereo or mono with a dynamic range tailored to suit whatever audio system is in use. Dolby Digital is the audio format for the Advanced Television Systems Committee (ATSC) digital television standard, and the digital cable standard of the Society of Cable Telecommunications Engineers (SCTE). It has also recently been recognized as an accepted audio transmission format for Digital Video Broadcasting (DVB). For DVD (Digital Versatile Disc), Dolby Digital is a standard audio format worldwide, meaning every DVD player in the world can decode it. Dolby Digital, with its 5.1 separate channels is now the backbone of the rapidly growing home cinema trend. Dolby Laboratories, the world leader in multichannel audio technology, develops audio signal-processing systems for use in consumer audio and video products, consumer audio and video entertainment media, and professional sound applications that include music recording, broadcasting, and film sound. The privately held company is headquartered in San Francisco, with offices in New York, Los Angeles, Shanghai, Tokyo, and European headquarters in England.