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Nicolas_GIST
- the "gist" features (aka "holistic representation of spatial envelope") are really simple to understand and to compute
v1s-0.0.4_scene.tar
- the "gist" features (aka "holistic representation of spatial envelope") are really simple to understand and to compute
musicdsp
- musicdsp source code archive-Analysis Beat Detector Class Coefficients for Daubechies wavelets 1-38 DFT Envelope detector Envelope Detector class (C++) Envelope follower with different attack and release Fast in-place Walsh-Hadamard Tra
qiuimf
- 安装过emd工具的，可直接求各imf分量的瞬时频率，包络频谱-Emd tools installed, you can find a direct component of the instantaneous frequency of each imf, the envelope spectrum
libogg
- 首先对输入音频PCM信号进行时频分析，决定MDCT的长度，即加窗，然后进行MDCT变换；同时对原始音频信号要进行FFT分析。两种变换的频谱系输入给心理声学模型单元，MDCT系数用于噪声掩蔽计算，H可结果用于音调掩蔽特性计算，共同构造总的掩蔽曲线。然后根据MDCT系数及掩蔽曲线，对频谱系数进行线性预测分析用LPC(Linear Prediction Coefficience，线性预测系数)表示频谱包络，即基底曲线(Floor Curve)；或通过线性分段逼近方式获得基底曲线。从MDCT系数中去掉
envelopee
- 非常实用的音频包络提取手段，自己测试感觉挺准确的-Very useful audio envelope extraction methods, their own test feel quite accurate