The Hardware Development Of High Performance Audio Processing System Based On C6727

As the quality of people's life was improved in recent years, more and more people started to enjoy the voice of high performance. High performance audio processing system has come into people's daily life. This paper researches in how to develop a high performance audio processing system.Firstly, the paper simply introduces the meaning of the development of the high performance audio processing system and the standard of the distinguishing of it. Then, the paper introduces the whole system design. Lastly, the paper introduces the design of some main function module of the system in detail.The system is made up of five main function module: audio processing module, audio sampling module, audio output module, memory module and communicating module. The core of the audio processing module is the DSP TMS320C6727, provided by TI, which is also the core of the whole system and can process the audio data in a high speed and in real time. The important part of the audio sampling module is the A/D convert of the audio signal, and that of the audio sampling module is the D/A convert of the audio signal. The PCM4204 and PCM4104 provided by TI are used, and they have high sampling rate and more bits of encoding, which can reduce distortion of audio signal. The memory is used for saving data. The communicating module is used for communicating with other devices.In the paper I designed the hardware structure of the system after lucubrating the chips such as DSP TMS320C6727, ADC PCM4204 and DAC PCM4104 etc; Then, according to the SCH of the system, I completed the PCB layout; At the end, I finished the debugging of each function module of the system and showed the flow chart of the debugging.The result of the debugging indicates that the design is right, and the system works well as we hope.