Title :
Auditory model based speech enhancement system for hands-free devices
Author :
Petrovsky, Alexander ; Bielawski, Krzysztof
Author_Institution :
Real Time Syst. Dept., Bialystok Tech. Univ., Bialystok, Poland
Abstract :
This paper introduce the new solution of integrated system to acoustic echo and noise reduction in order to improve the speech intelligibility in communication with used of the hands-free devices. The filter bank is proposed with minimum requirement of the band quantity to approximate psychoacoustic scale with nonuniform bands design using the first order all-pass transformation. Proposed solution fit in application of the 16-bit signal and sampling rate from 8 kHz.
Keywords :
acoustic signal processing; all-pass filters; echo suppression; signal sampling; speech enhancement; speech intelligibility; acoustic echo reduction; all-pass transformation; approximate psychoacoustic scale; auditory model based speech enhancement system; filter bank; frequency 8 kHz; hands-free device; integrated system; noise reduction; nonuniform band design; sampling rate; speech intelligibility; Speech;
Conference_Titel :
Signal Processing Conference, 2002 11th European
Conference_Location :
Toulouse
