数字化技术已全面的进入音频公共广播领域，对航空行业带来实质性的变革。
Meanwhile, Digital technique has already gotten into the field of audio broadcast completely, bringing material change to our professions.
随着数字信号处理技术的不断成熟，专业的音频处理和传输正逐渐从模拟向数字化过渡。
With digital signal processing technology maturity, professional audio processing and transmitting are changing from analog to digital.
重点介绍了数字化音频信息、数字音频文件、音乐合成技术及乐器数字接口MIDI。
Digitized audiofrequency information, digitized audiofrequency file, music composite technology, MIDI, etc., are emphatically introduced.
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