Method and apparatus for receiving an encoded speech signal based on codebooks
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United States of America Patent
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Jan 29, 2013
Grant Date -
Nov 3, 2011
app pub date -
Aug 10, 2010
filing date -
Dec 14, 1993
priority date (Note) -
Expired
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Abstract
A method and apparatus for processing speech in a wireless communication system uses CELP speech encoded signals. A decoder receives encoded speech including a code index, a code index gain, a pitch lag, a pitch gain, and a line spectral pair (LSP) index. An innovation codevector and an adaptive codevector are determined and scaled. An excitation sequence is generated. Reconstructed speech is then output based on the excitation sequence and LSP index.
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