Low Power Embedded Speech Enhancement System Based on a Fixed-Point DSP

Yu Cai; Jianping Yuan; Xiaochuan Ma; Chaohuan Hou

doi:10.1109/DASC.2009.30

Dependable, Autonomic and Secure Computing, IEEE International Symposium on

Low Power Embedded Speech Enhancement System Based on a Fixed-Point DSP

Year: 2009, Pages: 132-136

DOI Bookmark: 10.1109/DASC.2009.30

Authors

Yu Cai
Jianping Yuan
Xiaochuan Ma
Chaohuan Hou

Abstract

In this paper, we introduce a practical real-time speech enhancement system based on the TI TMS320VC5509A digital signal processor (DSP). A stereo audio codec is used as the analog input/output (I/O). The algorithm for noise reduction is an improved and optimized spectral-subtraction method. The detailed design of the hardware and software is described and the experiments show an improved performance. Low power consumption and high efficiency make the whole system suitable for portable devices.

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Low Power Embedded Speech Enhancement System Based on a Fixed-Point DSP

Authors

Abstract

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