Estimation of speech energy based on code excited linear prediction (CELP) parameters extracted from a partially-decoded CELP-encoded bit stream and applications of same
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United States of America Patent
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Dec 8, 2015
Grant Date -
Feb 28, 2013
app pub date -
Aug 22, 2011
filing date -
Aug 22, 2011
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Abstract
Methods, systems, and non-transitory computer readable media for estimating speech energy of an encoded bit stream based on coding parameters extracted from the partially-decoded bit stream are disclosed. In an embodiment, a disclosed method includes receiving a CELP-encoded bit stream, partially decoding the bit stream, and estimating the speech energy of the bit stream based a set of four or fewer CELP parameters extracted from the partially decoded bit stream. In another embodiment, a disclosed method includes receiving a CELP-encoded bit stream, partially decoding the bit stream, extracting at least one CELP parameter from the partially decoded bit stream, and estimating the speech energy of the bit stream based on the extracted at least one CELP parameter without calculating a linear prediction coding (LPC) filter response energy.
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