Title :
A Hands-Free Unit with Noise Reduction by Using Adaptive Beamformer
Author :
Kobayashi, Kazunori ; Haneda, Yoichi ; Furuya, Ken Ichi ; Kataoka, Akitoshi
Author_Institution :
NTT Cyber Space Labs., NTT Corp., Tokyo
Abstract :
This paper presents an implementation of 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. The experimental results demonstrate the noise reduction performance of the hands-free unit.
Keywords :
acoustic signal processing; array signal processing; echo suppression; loudspeakers; microphones; acoustic echo canceller; adaptive beamformer; hands-free unit; interference sound suppression; noise reduction; stationary noise suppression; Acoustic noise; Adaptive arrays; Covariance matrix; Digital signal processing; Echo cancellers; Filters; Interference suppression; Loudspeakers; Microphone arrays; Noise reduction;
Conference_Titel :
Consumer Electronics, 2008. ICCE 2008. Digest of Technical Papers. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1458-1
Electronic_ISBN :
978-1-4244-1459-8
DOI :
10.1109/ICCE.2008.4587865
