|
|
|
| A Method of Speech Enhancement Using Weighting Factors |
| PIAO ChunJun, CUI ShuangXi |
| Institute of Electric Engineering, Yanshan University, Qinhuangdao 066004 |
|
|
|
|
Abstract In this paper, a weighting factor for alleviating the speech distortion and reducing the residual noise in the speech enhancement system is derived. The function of weighting factor is to keep the energy of residual noise lower than the noise masking threshold and the speech distortion smaller than the residual noise. With Matlab language, the emulational results show the enhancement speech using the proposed method sounds more natural and leads to a significant reduction of the unnatural structure of the residual noise while alleviating the speech distortion.
|
|
Received: 19 December 2004
|
|
|
|
|
|
[1] Hu Y, Loizou P C. A Perceptually Motivated Approach for Speech Enhancement. IEEE Trans on Speech and Audio Processing, 2003, 11(5): 457-465
[2] Carnero B, Drygajlo A. Perceptual Speech Coding and Enhancement Using Frame-Synchronized Fast Wavelet Packet Transform Algorithms. IEEE Trans on Signal Processing, 1999, 47(6): 1622-1635
[3] Virag N. Single Channel Speech Enhancement Based on Masking Properties of the Human Auditory System. IEEE Trans on Speech and Audio Processing, 1999, 7(2): 126-137
[4] Ephraim Y, van Trees H L. A Signal Subspace Approach for Speech Enhancement. IEEE Trans on Speech and Audio Processing, 1995, 3(4): 251-266
[5] Cai H T, Yuan B T. A Speech Enhancement Algorithm Based on Masking Properties of Human Auditory System. Journal of China Institute of Communications, 2002, 23(8): 93-98 (in Chinese)
(蔡汉添,袁波涛.一种基于听觉掩蔽模型的语音增强算法.通信学报, 2002, 23(8): 93-98)
[6] Yao T R. Digital Speech Signal Process. Wuhan, China: Huazhong University of Technology Press, 1992 (in Chinese)
(姚天任.数字语音信号处理.武汉:华中理工大学出版社, 1992) |
|
|
|
2006, Vol. 19 
