A computationally efficient DAB bit-stream processor

Kazazoglu, Renan and Demirsoy, Suleyman S. and Kale, Izzet and Morling, Richard C.S. (2006) A computationally efficient DAB bit-stream processor. In: 2006 IEEE International Symposium on Circuits and Systems. ISCAS 2006. Proceedings. IEEE, Los Alamitos, USA, pp. 5543-5546. ISBN 0780393902


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Official URL: http://dx.doi.org/10.1109/ISCAS.2006.1693890


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.

Item Type: Book Section
Uncontrolled Keywords: Audio coding, data compression, digital audio broadcasting, quantisation (signal), receivers, scaling circuits, signal reconstruction, signal sampling, DAB, LFE, MPEG, audio layer II, bit-stream processor, digital audio broadcasting receiver, frequency sample reconstruction, lower frequency extension, moving pictures expert group, sample requantization, sample rescaling
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 19 Feb 2007
Last Modified: 11 Aug 2010 14:31
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/3336

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