Title :
A Hands-Free Unit with Noise Reduction by Using Adaptive Beamformer
Author :
Kobayashi, Kazunori ; Haneda, Yoichi ; Furuya, Ken´ichi ; Kataoka, Akitoshi
Author_Institution :
Nippon Telegraph & Telephone Corp., Tokyo
fDate :
2/1/2008 12:00:00 AM
Abstract :
This paper presents an implementation of an adaptive beamformer in a hands-free unit. The proposed adaptive beamformer suppresses stationary noise and interference sound. The adaptive beamformer and acoustic echo canceller were implemented in a compact hands-free unit with a low-cost DSP. Experimental results demonstrate the noise reduction performance of the hands-free unit.
Keywords :
array signal processing; echo suppression; interference suppression; acoustic echo canceller; adaptive beamformer; hands-free unit; interference sound; low-cost DSP; noise reduction; stationary noise; Acoustic noise; Adaptive arrays; Covariance matrix; Direction of arrival estimation; Echo cancellers; Filters; Interference suppression; Loudspeakers; Microphone arrays; Noise reduction;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2008.4470033
