此应用程序将记录来自输入设备的音频信号。
This application will record audio signals from an input device.
记录时显示实时信号和频谱图。
Plots of the immediate signal and the spectrogram are displayed while recording.
显示的长度和频率窗口可调。
Display length and the frequency window are adjustable.
无限制的录制是可能的，可以通过按钮停止。
An unlimited recording is possible and can be stopped by pressing a button.
之后，您可以将记录数据保存为一个wav文件，播放记录文件，打开波形，并以图形形式进行打印或开始新的记录。
Afterwards you are able to save the record as a wav-file, play the record, open the wave form and sprectrogram as figures or start a new record.
完整源码下载地址：
http://page2.dfpan.com/fs/5lac5j9252511289166/
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