扬声器发射的声音频率1000赫兹是放置数米，从平面反映墙在一个大型会议厅，载有天然气。
A loudspeaker which emits sound of frequency 1000 Hz is placed several meters from a plane reflecting wall in a large chamber containing a gas.
为了解码需要样品的宽度文件(比特数)，和采样频率(赫兹)，和本的信道数。
In order to decode the file you need the width of the samples (number of bits), and the sampling frequency (Hertz), and the number of channels present.
为了解码需要样品的宽度文件(比特数)，和采样频率(赫兹)，和本的信道数。
In order to decode the file you need the width of the samples (number of bits), and the sampling frequency (Hertz), and the number of channels present.
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