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Joint encoding and decoding methods for digital audio broadcasting of multiple programs

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4 Author(s)
N. Naik ; iBiquity Digital Corp., Warren, NJ, USA ; D. Sinha ; C. -E. W. Sundberg ; J. Tracey

We introduce new methods for increasing the performance of multiprogram digital audio broadcast systems, e.g., satellite digital audio broadcasting. Joint multiprogram encoding is an attractive possibility for parallel broadcasting of a large number of programs. Joint coding extended over multiple audio frames in time give further improvements. The benefits of this kind of statistical multiplexing yield improved audio quality and/or higher capacity in terms of number of programs. We describe the new Joint Multiple Program Encoding Technique in the context of the perceptual audio coding (PAC) type of algorithms. We also describe methods for multi-program transmission including Equal Error Protection (EEP) as well as Unequal Error Protection (UEP) and improved error concealment for multiple program transmission. Some of the techniques described in this paper, are currently being used in satellite digital audio broadcasting in the United States.

Published in:

IEEE Transactions on Broadcasting  (Volume:51 ,  Issue: 4 )