An Audio Acquisition and Release System Based on DSP

doi:10.3969/j.issn.1006-2475.2012.06.040

Computer and Modernization ›› 2012, Vol. 1 ›› Issue (6): 147-151.doi: 10.3969/j.issn.1006-2475.2012.06.040

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An Audio Acquisition and Release System Based on DSP

XIAO Qi-yang, FANG Yuan

School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China

Received:2012-02-08 Revised:1900-01-01 Online:2012-06-14 Published:2012-06-14

Abstract

Abstract: An audio signal processing system based on DSP is introduced. The system adopts TI's low power consumption DSP TMS320VC5509A as the main processor, and TLV320AIC23 as the audio codec chip. Therefore, the system's hardware platform and software design are completed based on them, which can be used as a universal platform for other audio signal processing. The paper expounds in detail the method of interface that connects codec chip with DSP. At last, it provides an example of data transmission based on DMA interruption, which upgrades procession speed largely.

Key words: DSP, audio processing, audio codec, interface design, DMA

CLC Number:

TP368.1

XIAO Qi-yang;FANG Yuan. An Audio Acquisition and Release System Based on DSP[J]. Computer and Modernization, 2012, 1(6): 147-151.

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