Sporadic noise reduction for robust speech recognition in mobile devices

In this paper, a framework of sporadic noise detection and cancellation is proposed. To improve the intelligence of sporadic noise detection, the difference residual detective signalbased detection algorithm is proposed. For performance evaluation, missing and false error rates, and speech recognition rates are measured. The results show remarkable performance improvement.

[1]  P. A. Barrett,et al.  Robust noise detection for speech detection and enhancement , 1997 .

[2]  I. Kauppinen,et al.  Methods for detecting impulsive noise in speech and audio signals , 2002, 2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628).

[3]  Kathryn Momtahan,et al.  Linear prediction based packet loss concealment algorithm for PCM coded speech , 2001, IEEE Trans. Speech Audio Process..

[4]  M. Karjalainen,et al.  Detection of clicks in audio signals using warped linear prediction , 2002, 2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628).