Method and apparatus for transmitting an encoded speech signal
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United States of America Patent
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Aug 10, 2010
Grant Date -
Apr 30, 2009
app pub date -
Oct 28, 2008
filing date -
Dec 14, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for processing speech in a wireless communication system uses code excited linear prediction (CELP) speech encoded signals. A speech input receives samples of a speech signal and a codebook analysis block selects an index of a code from one or more codebooks. A prediction error between a predicted current sample and a current sample of the speech samples is determined. An innovation sequence is determined based on the prediction error and an index is selected based on the innovation sequence. The index is transmitted to the receiver to enable reconstruction of the speech signal at the receiver.
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