对输入信号进行频谱分析，可以实现声音的即时采集并分析适合从事音频信号处理和分析。-Of the input signal spectral analysis, can achieve real-time voice fit to engage in collection and analysis of audio signal processing and analysis.

c++写的音频软件，有录音功能，并实时看语谱图-c++ to write audio software, recording and real-time view spectrogram