Abstract
With the high-speed development of VLSI, the DSP technology has been used in many areas. Audio treatment is the most important part of communication. Using this tech to realize audio treatment system in communication project is the foundations that realize more complex system. Based on what has been discussed above, the research content of this design is using DSP to complete the sound treatment: sound input and output, sound synthesis, sound condensing.
The content of this design: The possibility analysis of realization way, input signal compared with the output one through out ADC and DAC, the A law condensing method carried out data condensing, and realization the sound synthesis by 8253 and 8255.
The result of this design: Using TMSVC5410, MAX1246 ADC, MAX531 DAC realized sound input, output and sound-condensing. The designs keep them in concert and carried out the condensing in the process. Using 8253 and 8255 sent out the sound with fixed frequency.
Key words: Sound Input, Sound Output, Sound synthesis, Sound-Condensing.
随着大规模集成电路技术的飞速发展，DSP已经被应用到各个领域当中。语音处理是通信中的重要组成部分，在通信领域利用DSP实现语音处理系统设计是实现更复杂通信的基础。基于这些，本设计的研究内容就是利用DSP实现对语音的处理，包括：语音的输入与输出，语音的合成，语音的压缩算法的实现。
设计中完成的工作有：实现方法的可行性分析，输入信号与经过A/D和D/A转换后的输出信号的对比，A律压缩算法实现对数据的压缩，以及通过8253定时器和8255可编程控制器实现声音的合成。
设计结果是：利用TMSVC5410处理器和MAX1246A/D，MAX531D/A实现了语音的输入，输出以及语音数据压缩，使得输入输出信号保持一致且在处理过程中实现了数据压缩。并利用8253定时器和8255可编程控制器发出了指定频率的声音。
关键词：语音输入、语音输出、语音合成、语音压缩
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