Title :
Study on 2-dimensional microphone circular array speech enhancement algorithm based on the DOA
Author :
Xiaoyu Ma ; Kun Mu
Author_Institution :
Dept. of Comput. Sci. & Eng., Henan Inst. Of Eng., Zhengzhou, China
Abstract :
In order to improve the beamformer´s robustness against DOA estimation error, reduce the beamformer´s attenuation against the target signal, this paper proposes an improved beamformer algorithm based on the frequency focusing, which makes the beam´s pattern in the sound bandwidth tend to be uniform, reduces the speech distortion, and further improves the effect of the speech enhancement.
Keywords :
array signal processing; direction-of-arrival estimation; microphone arrays; speech enhancement; 2-dimensional microphone circular array speech enhancement algorithm; DOA estimation error; beamformer attenuation; frequency focusing; sound bandwidth; speech distortion; Arrays; Covariance matrix; Focusing; Interference; Noise; Speech; Speech enhancement; DOA estimation; Frequency focusing; Microphone array beam-forming; Speech enhancement;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023608
