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Advanced audio coding for digital sound broadcasting

: Brandenburg, K.; Kunz, O.; Quackenbush, S.

National Association of Broadcasters -NAB-:
52nd Broadcast Engineering Conference 1998. Proceedings
Washington, DC: NAB Office of Science and Technology, 1998
ISBN: 0-89324-307-8
Broadcast Engineering Conference <52, 1998, Las Vegas/Nev.>
Conference Paper
Fraunhofer IIS A ( IIS) ()
AAC; advanced audio coding; data compression; data reduction; Datenkomprimierung; Datenreduktion; filterbank; low bitrate audio coding; MPEG; MPEG-2; MPEG-4; perceptual audio coding; psychoacoustic; Psychoakustik; Toncodierung

Digital sound broadcasting systems are always in need for better bandwidth efficiency. The recently standardized MPEG-2 Advanced Audio Coding system delivers a factor of two improvement in compression efficiency over older technology like MPEG-Audio Layer-2. It has been designed for all applications needing high efficiency compression for high quality audio signals supporting mono, stereo and multi-channel material. Even more flexibility and coding modes will be available with the upcoming MPEG-4 Advanced Audio Coding and adds modes for low bit-rate speech coding, audio coding at very low bit-rates (down to a few kb/s) and the seamless integration of audio synthesis.