Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
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United States of America Patent
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Feb 27, 2018
Grant Date -
Sep 15, 2016
app pub date -
Mar 16, 2016
filing date -
Mar 9, 2010
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Abstract
An apparatus for generating a bandwidth extended audio signal from an input signal, includes a patch generator for generating one or more patch signals from the input signal, wherein the patch generator is configured for performing a time stretching of subband signals from an analysis filterbank, and wherein the patch generator further includes a phase adjuster for adjusting phases of the subband signals using a filterbank-channel dependent phase correction.
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