基于频域的数字助听器中的啸叫检测与抑制
Audio Engineering(2012)
Abstract
介绍了基于频域的数字助听器中的啸叫检测和抑制系统。用一种高效的时频域变换滤波器组,用相位和能量两个方面的信号特征检测去判定信号是否处于啸叫状态。对啸叫语音进行频域压制从而达到抑制并消除啸叫的效果。实验结果表明,此系统性能优良。
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Key words
feedback suppression,oscillation detection,weighted overlap-add
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