Method and apparatus for removing jitter in audio data transmission
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United States of America Patent
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Dec 4, 2018
Grant Date -
Jan 25, 2018
app pub date -
Sep 15, 2016
filing date -
Oct 1, 2015
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Abstract
In accordance with an example embodiment of the present invention, disclosed is a method and an apparatus thereof for removing jitter introduced by a packet switched network. Each received audio frame comprises a primary portion and a redundancy portion. The redundancy portion comprises a partial redundant copy of a previous frame that is offset by k frames. If a frame n is lost, a frame n+k that comprises the partial redundant copy of the lost frame n, is located in a jitter buffer. Based on the frame n+k, a substitute frame n′ substituting the lost frame n is created and a substitution indicator of the substitute frame n′ is set to indicate that the redundancy portion of the substitute fame n′ should be used in decoding.
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