The voice quality in the DRM system is much higher than that in the analogue AM broadcasting system because new encoding and decoding technologies are used in the DRM.
和传统广播系统相比，DRM数字广播系统在声音质量上是模拟调幅广播无法比拟的。
The apparatus adds a voice module in the main control board, which has signal monitoring function, encoding and decoding function, dialing signal sending function.
本发明所述的装置是在主控板中增加一个语音模块。语音模块具有信号监测功能，编解码功能，拨号信号发送功能。
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