Title: Background noise cancellation for hands-free communication system of car cabin using adaptive feedforward algorithms
Authors: Wu, JD
Lee, TH
Bai, MSR
機械工程學系
Department of Mechanical Engineering
Keywords: hands-free communication;car cabin;ANC;DSP
Issue Date: 2003
Abstract: This paper describes the background noise attenuation for hands-free communication systems of car cabins using adaptive feedforward noise control algorithm. For hands-free telephone system, the quality of communication usually is effect by background noise such as engine noise and aerodynamic noise. In the present study, an active noise control (ANC) design for reducing car cabin periodic background noise from engine and broadband random noise using adaptive feedforward control are investigated. The control algorithm is based on the well-known filtered-x least mean square (FXLMS) with multi-sine synthesized reference signal and frequency counting technology is implemented on a digital signal processor (DSP) platform. Experimental results indicated that the proposed design was effective suppressing 15 dB in periodic engine noise and 2-3 dB in broadband random background noise.
URI: http://hdl.handle.net/11536/28270
http://dx.doi.org/10.1504/IJVD.2003.003356
ISSN: 0143-3369
DOI: 10.1504/IJVD.2003.003356
Journal: INTERNATIONAL JOURNAL OF VEHICLE DESIGN
Volume: 31
Issue: 4
Begin Page: 440
End Page: 451
Appears in Collections:Articles