Title :
A broadband beamforming method based on microphone array for the speech enhancement
Author :
Wang, Dongxia ; Zheng, Jiachao ; Wu, Tao
Author_Institution :
Electron. & Inf. Eng. Coll., Liaoning Univ. of Technol., Jinzhou, China
Abstract :
A broadband beamforming method based on wavelet filterbanks and adaptive beamforming is proposed for speech enhancement in this paper. First, using the wavelet analysis filterbanks, noisy speech signals are transformed into wavelet domain with wavelet coefficients as output. Then the beamforming based on generalized sidelobe canceller (GSC) operates on the wavelet coefficients. Finally, the enhanced full-band speech signals were finally reconstructed by synthesizing the enhanced subband speech signals by used of the wavelet synthesis filterbanks. Simulation results demonstrate its effect.
Keywords :
array signal processing; microphone arrays; speech enhancement; wavelet transforms; adaptive beamforming; broadband beamforming; full-band speech signals; generalized sidelobe canceller; microphone array; noisy speech signals; speech enhancement; subband speech signals; wavelet analysis filterbanks; wavelet coefficients; wavelet domain; wavelet filterbanks; Adaptive filters; Array signal processing; Arrays; Broadband communication; Microphones; Speech; Speech enhancement; broadband beamforming; microphone array; speech enhancement; wavelet filterbanks;
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555758
