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soudcarddemo
- 声音的傅立叶变换演示 提供了matlab下的函数接口-voice of the Fourier Transform provides a demonstration of Matlab interface function
smbPitchShift
- c++ 短时傅立叶变换实现移频的程序 -pitch shift using short time fourir transform to
music_recognize_on_matlab
- 从信号处理的角度讲，小波(变换)是强有力的时频分析(处理)工具，是在克服傅立叶变换缺点的基础上发展而来的，所以从信号处理的角度认识小波，需要傅立叶变换、傅立叶级数、滤波器等的基础知识。 -From signal processing perspective, the wavelet (transform) is a powerful time-frequency analysis (processing) tool is to overcome the shortcomings on th
harmonic
- 语音harmonic特征提取，先对语音信号分帧，然后对每一帧使用中心频率维基音频率的倍数的带通滤波器进行滤波，最后滤波结果的傅立叶变换的结果-Voice harmonic feature extraction, the first speech signal sub-frame, and then using the center frequency for each frame of Wiki sound frequency multiple of the band-pass filter f
speech-signal-filter
- 使用matlab语言对一段语音信号进行滤波处理，首先分析时域信号，之后进行傅立叶变换，转换成频域，使用巴特沃斯低通滤波器去除高频部分。-Use matlab language of a voice signal is filtered first time domain signal after the Fourier transform is converted into the frequency domain, using a Butterworth low-pass filter to