cepstrum analysis meaning in Chinese
倒频谱分析
Examples
- The theory of lpc and mel - scaled cepstrum analysis is introduced in this dissertation and how to extract lpcc and mfcc is elaborated
详细介绍了线性预测分析( lpc )和mel倒谱分析的原理及其具体实现过程。 - Based on high - dimension space geometry , every speech sample is looked as a point in space . then the speech sample point is extracted feature by lpc , mel - scaled cepstrum analysis or auto correlation - angle . their feature is looked as a point too
基于高维空间几何的思想，把每个样本点和其特征值看作高维空间中的一个点，用线性预测分析、 mel倒谱分析和自相关夹角法对样本点提取特征，然后用点在空间的投影来判别语音和非语音，根据判别结果来比较三种特征提取方法的优劣。 - The signal process function of the software include these function : digital filter , windowing , auto - correlation function and cross - correlation function , mean and variance , probability density function and probability distribution function statistic ; auto - power spectrum , cross - power spectrum , frequency response function , coherence function , cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )
软件的处理功能包括：数字滤波、时域加窗、自相关与互相关处理、均值和方差计算、概率密度和概率分布函数计算；在快速傅立叶变换( fft )基础上计算自功率谱、互功率谱、频率响应函数、相干函数、倒频谱分析；基于短时傅立叶变换( stft )的联合时频分析等。