In addition to the system and the cost of mileage statistics, also has calendar functions and voice broadcast.
本系统除了里程统计和费用计算以外，还具有万年历和语音播报功能。
Voice signal acquisition, compression, broadcast, the transmission system is an important component.
压缩 、播放、传输是上述系统的一个重要组成部分。
Results The hospital broadcast system was built based on ISD4004 voice chip and infrared remote control.
结果：利用ISD4004语音芯片，构建了基于红外遥控的医院语音播报系统。
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