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Serizawa et al., 1999 - Google Patents

Joint optimization of LPC and closed-loop pitch parameters in CELP coders

Serizawa et al., 1999

Document ID
5088817202152832041
Author
Serizawa M
Gersho A
Publication year
Publication venue
IEEE Signal Processing Letters

External Links

Snippet

In code-excited linear prediction (CELP) coders, computation of linear prediction coefficient (LPC) parameters is generally performed open-loop, and subsequently the pitch predictor parameters are found for each subframe by a closed-loop search. To improve these two …
Continue reading at ieeexplore.ieee.org (other versions)

Classifications

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    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
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