Audio Signal Processing Based on FPGA

Jing Bo Zhang; Xiao Feng Wang; Shu Fang Zhang

doi:10.4028/www.scientific.net/AMR.1049-1050.1759

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1049-1050Audio Signal Processing Based on FPGA

Audio Signal Processing Based on FPGA

Abstract:

This paper presents a system of audio signal processing based on FPGA,the system uses audio codec chip LM4550 to A/D transform and D/A transform the input analog audio signal and output digital audio signal.Using FPGA as the high speed signal processor to realize volume adjustment and audio effect control,so it can output different style music.Meantime, the system designs a FFT computing module and control system of VGA display interface,to compute the digital audio signal which is A/D transformed,and real-time display the frequency spectrum of audio signal on VGA.

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Periodical:

Advanced Materials Research (Volumes 1049-1050)

Pages:

1759-1764

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1049-1050.1759

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Online since:

October 2014

Authors:

Jing Bo Zhang*, Xiao Feng Wang, Shu Fang Zhang

Keywords:

Audio Signal, FPGA, Vg

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* - Corresponding Author

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