Noise reduction method and echo cancellation system applying same

The invention belongs to the technical field of echo cancellation, and particularly relates to a noise reduction method and an echo cancellation system applying the same. The noise reduction method comprises the steps: acquiring a burr threshold pow-threshold according to a far-end sound signal; and weakening data w smaller than the burr threshold pow-threshold in the estimated sound signal. According to the technical scheme, the burr threshold pow-threshold obtained based on the far-end sound signal can well evaluate and estimate whether the data in the sound signal contains residual glitch noise or not, so that the corresponding data w is weakened to remove the glitch noise. 本发明属于回声消除技术领域，具体涉及一种降噪方法及应用该方法的回声消除系统。该降噪方法，包括：根据远端声音信号获取毛刺阈值pow_threshold；削弱估算声音信号中小于所述毛刺阈值pow_threshold的数据w。上述技术方案中，基于远端声音信号获取的毛刺阈值pow_threshold能够较好的评估估算声音信号中的数据是否包含残留的毛刺噪声，从而将相应的数据w进行削弱以去除毛刺噪声。