Design and Implementation of Audio Process System Based on DSP

Abstract:

The real-time processing for the input analog audio signal, audio processing program is proposed based on DSP. The system use FFT algorithm as the core, first, the input analog audio signal is sampled and A/D conversion using TLV320AIC23, and then use high speed digital signal processor to make real-time processing for the signal. Theoretical and experimental results show that the system can meet the design requirements, it has the advantage of high real-time and simple structure. The system has a good application and reference value for the development and design of data collecting and remote monitoring.

• Periodical: Advanced Materials Research (Volumes 945-949)
• Pages: 1752-1755
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.945-949.1752
• Online since: June 2014
• Authors: Chui Xin Chen*, Yang Hong Mao
• Keywords: DSP, FFT, Real-Time Processing

References

[1] Andrew Bateman, Iain Paterson-Stephens. DSP Algorithm. Application and design[M]. Beijing: China Machine Press, (2003).

[2] Zhao hongliang. TMS320C55x DSP application system design[M]. Beijing: Beihang University press, 2010: 315-325.

[3] Cui lianhe. I2C achieve the configuration and research of audio sampling chip TLV320AIC23 [J]. Coal technology, 2011, 30(1): 162-163.

[4] Zhu yan. DSP principle and application[M]. Beijing: publishing house of electronics industry, (2008).