Short-time windowing, endpoint detection, short-term average energy, zero crossing rate, autocorrelation function and so on are analysed in time domain. Short-time Fourier transform method, spectrogram and other related issuses are discussed in frequency domain. 在时域分析中讨论了短时加窗、端点检测、短时平均能量、短时过零率以及自相关函数等相关问题;在频域分析中讨论了短时傅里叶变换法、语谱图等相关问题。
These algorithms are more available than classical windowing method to eliminate the noise in frequency respond function. 将这些算法用于剔除频率响应函数中的噪音比传统的加窗方法更为有效。