Interframe differential coding of line spectrum frequencies

E Erzin,A.E Cetin

doi:10.1109/89.279286

Interframe differential coding of line spectrum frequencies

E Erzin, A.E Cetin

Open Access

https://doi.org/10.1109/89.279286

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Journal: IEEE Transactions on Audio, Speech and Language Processing	Publication Date: Apr 1, 1994
Citations: 13

Affiliation: Bilkent University

#Line Spectrum Frequencies #Linear Predictive Coding + Show 8 more

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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 interframe 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.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>

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