介绍了立体声数字功率放大器系统的基本结构，深入讨论了数字功率放大器的数字信号处理部分的实现原理。

This paper introduces the basic structure of a digital power amplifier system, with an in-depth discussion on the implementation of the digital signal processing parts in this system.

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本文设计的虚拟环绕立体声系统，将普通双声道音频信号经过数字信号处理器（DSP）处理，转变成具有环绕立体声效果的双声道音频信号。

The simulant surrounding stereo-system designed in this paper can convert the ordinary audio-signal to stereo audio-signal through the processing of Digital Signal Processor (DSP).

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该系统是由一个非常高品质的数字放大器提供100瓦的数字立体声。

The system is powered by a very high quality digital amplifier delivering 100 Watts of high-end digital stereo.

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