中文说明：(1) 音频信号信号输入，从声卡输入、从WAV文件输入、从标准信号发生器输入；(2) 信号波形分析，包括幅值、频率、周期、相位的估计，以及统计量峰值、均值、均方值和方差的计算；(3) 信号频谱分析，频率、周期的估计，图形显示幅值谱、相位谱、实频谱、虚频谱和功率谱的曲线。
English Description：
(1) audio signal signal entered, from sound card entered, and from WAV file entered, and from standard signal generator entered; (2) signal waveform analysis, including site value, and frequency, and cycle, and phase of estimated, and statistics volume peak, and are value, and are party value and variance of calculation; (3) signal spectrum analysis, frequency, and cycle of estimated, graphics displayed site value spectrum, and phase spectrum, and real spectrum, and virtual spectrum and power spectrum of curve.