Interframe differential coding of line spectrum frequencies

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10.1109-89.279286.pdf (321.58 KB)

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1994

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Abstract

Line spectrum frequencies (LSF's) uniquely represent the linear predictive coding (LPC) filter of a speech frame. In many vocoders LSF's are used to encode the LPC parameters. In this paper, an inter-frame differential coding scheme is presented for the LSF's. The LSF's of the current speech frame are predicted by using both the LSF's of the previous frame and some of the LSF's of the current frame. Then, the difference resulting from prediction is quantized.

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IEEE Transactions on Speech and Audio Processing

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IEEE

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Acoustic signal processing, Predictive control systems, Signal encoding, Signal filtering and prediction, Speech analysis, Speech coding, Speech synthesis, Vocoders

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http://hdl.handle.net/11693/13623

Published Version (Please cite this version)

http://dx.doi.org/10.1109/89.279286

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Scholarly Publications - Electrical and Electronics Engineering

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English

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Article