无法初始化选定的声音。您可能无法播放此声音。请选择其他声音或不同的音频输出设备。
The selected voice could not be initialized. You may not be able to play this voice. Please try selecting a different voice or a different audio output device.
介绍了由GPS接收器、工控机和音频输出设备组成的公交车自动报站系统的功能、组成原理和关键技术，阐述了系统主要的硬件和软件设计方法。
The thesis analyses the function, the principles of composing and the key technology of GPS based buses'auto-announce system, also the hardware design and the software design are presented.
话筒与内置扬声器分别是与adc和DAC相连的音频输入与输出设备。
Microphone jacks and built-in speakers are devices connected to an ADC and DAC, respectively for the input and output of audio.
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