Method and apparatus for switching speech or audio signals
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United States of America Patent
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Jul 3, 2012
Grant Date -
Nov 3, 2011
app pub date -
Jun 16, 2011
filing date -
Apr 28, 2010
priority date (Note) -
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Abstract
A method and an apparatus for switching speech or audio signals, wherein the method for switching speech or audio signals includes when switching of a speech or audio, weighting a first high frequency band signal of a current frame of speech or audio signal and a second high frequency band signal of the previous M frame of speech or audio signals to obtain a processed first high frequency band signal, where M is greater than or equal to 1, and synthesizing the processed first high frequency band signal and a first low frequency band signal of the current frame of speech or audio signal into a wide frequency band signal. In this way, speech or audio signals with different bandwidths can be smoothly switched, thus improving the quality of audio signals received by a user.
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