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A computationally efficient DAB bit-stream processor

By R. Kazazoglu, S.S. Demirsoy, I. Kale and R.C.S. Morling


This paper describes an MPEG (moving pictures expert group) audio layer II - LFE (lower frequency extension) bit-stream processor targeting DAB (digital audio broadcasting) receivers that will handle the decoding of the frames in a computationally efficient manner to provide a synthesis sub-band filter with the reconstructed sub-band samples. Focus is given to the frequency sample reconstruction part, which handles the re-quantization and re-scaling of the samples once the necessary information is extracted from the frame. The comparison to a direct implementation of the frequency sample reconstruction block is carried out to prove increased computational efficiency

Topics: UOWSAT
Publisher: IEEE
Year: 2006
OAI identifier: oai:westminsterresearch.wmin.ac.uk:3336
Provided by: WestminsterResearch

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