Encoding and decoding of interchannel phase differences between audio signals
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United States of America Patent
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Feb 26, 2019
Grant Date -
Dec 21, 2017
app pub date -
Jun 12, 2017
filing date -
Jun 20, 2016
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Abstract
A device for processing audio signals includes an interchannel temporal mismatch analyzer, an interchannel phase difference (IPD) mode selector and an IPD estimator. The interchannel temporal mismatch analyzer is configured to determine an interchannel temporal mismatch value indicative of a temporal misalignment between a first audio signal and a second audio signal. The IPD mode selector is configured to select an IPD mode based on at least the interchannel temporal mismatch value. The IPD estimator is configured to determine IPD values based on the first audio signal and the second audio signal. The IPD values have a resolution corresponding to the selected IPD mode.
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