System for conealing missing audio waveforms
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United States of America Patent
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Feb 18, 2014
Grant Date -
Aug 29, 2013
app pub date -
Dec 17, 2012
filing date -
Dec 21, 2006
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Abstract
In one embodiment, a method can include: (i) establishing an internet protocol (IP) connection; (ii) forming a buffered version of a plurality of voice frame slices from received audio packets; and (iii) when an erasure is detected, performing a packet loss concealment (PLC) to provide a synthesized speech signal for the erasure, where the PLC can include: (a) identifying first and second pitches from the buffered version of the plurality of voice frame slices; and (b) forming the synthesized speech signal by using the first and second pitches, and more if needed, followed by an overlay-add (OLA).
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