Adaptive Null-Forming Algorithm with Auditory Sub-bands

作者:Heng Zhang;Qiang Fu;Yonghong Yan 刊名: 上传者:奚晓丹

【摘要】This paper presents a modified noise reduction algorithm for speech enhancement based on the scheme of null-forming. A fixed infinite-duration impulse response (IIR) filter is designed to calibrate the mismatch of the microphone pair. To weaken the performance degradation caused by narrow-band effect; the signal is decomposed into several specified sub-bands with auditory characters. This increases the signal to noise ratio (SNR) considerably while preserving the auditory effect. Experiments are carried out to show the effectiveness of these processes.