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An audio coding system using subband backward linear prediction

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1 Author(s)
Lin Yin ; Speech & Audio Syst. Lab., Nokia Res. Center, Tampere, Finland

In this paper, block backward adaptive linear predictors are used for improving the performance of perceptual audio codecs. Based on the investigation on different linear prediction algorithms, a signal dependent adaptive-switched predictor is developed. This predictor not only delivers significant coding gain for stationary signals but also recovers quickly from transient signals. At a bitrate of 64 kbit/s, the performance of the new codec for most critical test sequences is significantly better than MPEG-1 Layer II

Published in:

Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on  (Volume:4 )

Date of Conference:

9-12 Jun 1997