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在VCD视盘机中,数字信号处理器(Digital Signal Processor,缩写为DSP)是数字信号进行还原处理的第1道关口,经DSP还原的数字信号在进行MPEG1解码后再经PAL/NTSC编码器和音频D/A转换器还原成模拟的视频信号和音频信号。由此可见DSP的重要性。本文专门介绍DSP的基本原理及其各种集成电路。
In the VCD player, the digital signal processor (Digital Signal Processor, abbreviated as DSP) is the digital signal to restore the first pass, the digital signal restored by the DSP after MPEG1 decoding by PAL / NTSC encoder and audio The D / A converter reverts to analog video and audio signals. This shows the importance of DSP. This article specifically describes the basic principles of DSP and its various integrated circuits.