Noise suppression device and noise suppressing method
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United States of America Patent
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Jun 9, 2020
Grant Date -
Feb 1, 2018
app pub date -
Jun 29, 2017
filing date -
Jul 27, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A noise suppression device including: a processor configured to: divide a voice signal into frames such that two successive frames overlap each other; compute a frequency spectrum for the voice signal; remove a noise component from an amplitude component of the frequency spectrum to compute a noise suppression amplitude component; compare amplitude components or noise suppression amplitude components for each pair of successive frames to compute a comparison value for each frequency; compute a gain according to the comparison value for each frequency; compute a corrected amplitude component for each frequency by multiplying the noise suppression amplitude component by the corresponding gain; and compute a corrected voice signal based on the corrected amplitude component for each frequency.
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