声音采集比对

说明：  声音采集 现实中的声音是一段连续的信号， 现在大部分的声音是以离散的数字信号保存下来，例如CD、MP3音频格式。 在保存这些信息时，考虑到对声音质量和存储的效率， 需要对声音的几个重要的基本属性进行研究。
(Sound Acquisition In reality, sound is a continuous signal. Now most of the sound is stored in discrete digital signals, such as CD, MP3 audio format. In order to preserve this information, considering the sound quality and storage efficiency, several important basic attributes of sound need to be studied.)