The music by the SCM system is the smallest system and the planned expansion of LED display circuit and voice circuit.

该音乐门铃系统是由单片机最小系统及扩展LED显示电路和语音电路组成。

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The music alarm clock from SCM system is the smallest system and the expansion of LED display circuit and voice circuit .

该音乐闹钟系统是由单片机最小系统及扩展LED显示电路和语音电路组成。

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In this thesis through the project development process, research and design of radio-CD players and recorders voice player of the circuit, and Second Road signal synthesis.

在本毕业论文通过这个项目的开发过程，研究并设计广播录放盘CD机和语音播放部分电路，实现二路信号的合成。

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At the carrier switching office, the voice is separated from the data and converted back to regular circuit-switched voice.

CNN: Voice over DSL trial passes muster

Voice traffic on cellular networks currently is routed with what is known as a circuit-switched system.

WSJ: U.S. Wireless Carriers Move to New Technology��for Voice