Method and system for encoding left and right channels of a stereo sound signal selecting between two and four sub-frames models depending on the bit budget
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United States of America Patent
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Jul 6, 2021
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Jul 25, 2019
app pub date -
Mar 29, 2019
filing date -
Sep 25, 2015
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Abstract
A stereo sound encoding method and system, for encoding left and right channels of a stereo sound signal, down mix the left and right channels of the stereo sound signal to produce primary and secondary channels and encode the primary and secondary channels. Encoding the primary channel and encoding the secondary channel comprise determining a first bit budget to encode the primary channel and a second bit budget to encode the secondary channel. If the second bit budget is sufficient, the secondary channel is encoded using a four subframes model and, if the second bit budget is insufficient for using the four subframes model, the secondary channel is encoded using a two subframes model.
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