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2010•Modern Electronics TechniqueRequires access

Voice Recording and Playback System Based on FPGA

Lili Li

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Abstract

The system achieves the I2C bus controller in the FPGA,the voice recording and playback functions are realized successfully in combination with high-quality digital signal audio encoder/decoder chip WM8731 based on Altera Corporation NiosII embedded soft processor.At the same time,the collected voice data is simulated taking advantage of MATLAB 7.0.4.The system uses SoPC technology to design their own acquisition module and I2C protocol driver module,and carries on real-time and high-speed acquisition and playback through AWALON bus mounted on NIOS soft-core.Practice shows that the system has high integration,good stability and high real-time performance.

About this research paper

What this paper is about

The system achieves the I2C bus controller in the FPGA,the voice recording and playback functions are realized successfully in combination with high-quality digital signal audio encoder/decoder chip WM8731 based on Altera Corporation NiosII embedded soft processor.At the same time,the collected voice data is simulated taking advantage of MATLAB 7.0.4.The system uses SoPC technology to design their own acquisition module and I2C protocol driver module,and carries on real-time and high-speed acquisition and playback through AWALON bus mounted on NIOS soft-core.Practice shows that the system has high integration,good stability and high real-time performance.

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Available abstract

The system achieves the I2C bus controller in the FPGA,the voice recording and playback functions are realized successfully in combination with high-quality digital signal audio encoder/decoder chip WM8731 based on Altera Corporation NiosII embedded soft processor.At the same time,the collected voice data is simulated taking advantage of MATLAB 7.0.4.The system uses SoPC technology to design their own acquisition module and I2C protocol driver module,and carries on real-time and high-speed acquisition and playback through AWALON bus mounted on NIOS soft-core.Practice shows that the system has high integration,good stability and high real-time performance.

Key concepts: Field-programmable gate array, Computer science, Computer hardware, Encoder, Embedded system, Nios II, Controller (irrigation), Data acquisition

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