介绍了采用D类放大器来完成音频信号变换与放大的电路设计。
This paper introduces design of the circuit which uses a class-D amplifier to converse and enlarge the audio signal.
音频处理的数字化是利用数字滤波算法对采集到的音频信号进行变换处理来实现的。
The audio processing digitization is using the digital filter algorithm to sample and process the audio signal.
基于TCP/IP协议思路，在嵌入式系统中研究采用数字信号来实现音频信号的传输。
Study of the transmission that about aural signal realized by digital signal, at embedded system based on the TCP/IP protocol.
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