msf_mfcc - Mel Frequency Cepstral Coefficients §

 function feat = msf_mfcc(speech,fs,varargin)

given a speech signal, splits it into frames and computes Mel frequency cepstral coefficients for each frame. For a tutorial on MFCCs, see MFCC tutorial.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 mfccs = msf_mfcc(signal,16000,'nfilt',40,'ncep',12);

msf_lpc - Linear Prediction Coefficients §

 function feat = msf_lpc(speech,fs,varargin)

given a speech signal, splits it into frames and computes Linear Prediction Coefficients for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 lpcs = msf_lpc(signal,16000,'order',10);

msf_rc - Reflection Coefficients §

 function feat = msf_rc(speech,fs,varargin)

given a speech signal, splits it into frames and computes Reflection Coefficients for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 rcs = msf_rc(signal,16000,'order',10);

msf_logfb - Log Filterbank Energies §

 function feat = msf_logfb(speech,fs,varargin)

given a speech signal, splits it into frames and computes log filterbank energies for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 logfbs = msf_logfb(signal,16000,'nfilt',40,'ncep',12);

msf_filterbank - return a mel-spaced filterbank §

 function fbank = msf_filterbank(nfilt,fs,lowfreq,highfreq,nfft)

returns a mel-spaced filterbank for use with filterbank energies, mfccs, sscs etc.

Example usage:

 lpcs = msf_filterbank(26,16000,0,16000,512);

msf_lsf - Line Spectral Frequencies §

 function feat = msf_lsf(speech,fs,varargin)

given a speech signal, splits it into frames and computes Line Spectral Frequencies for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 lsfs = msf_lsf(signal,16000,'order',10);

msf_lpcc - Log Area Ratios §

 function feat = msf_lar(speech,fs,varargin)

given a speech signal, splits it into frames and computes Log Area Ratios for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 lars = msf_lar(signal,16000,'order',10);

msf_framesig - break a signal into frames §

 function win_frames = msf_framesig(signal, frame_len, frame_step, winfunc)

Takes a 1 by N signal, and breaks it up into frames. Each frame starts frame_step samples after the start of the previous frame. Each frame is windowed by wintype.

- to specify window, use e.g. @hamming, @(x)chebwin(x,30), @(x)ones(x,1), etc.

Example usage with hamming window:

 frames = msf_framesig(speech, winlen*fs, winstep*fs, @(x)hamming(x));

msf_lpcc - Linear Prediction Cepstral Coefficients §

 function feat = msf_lpcc(speech,fs,varargin)

given a speech signal, splits it into frames and computes Linear Prediction Cepstral Coefficients for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 lpccs = msf_lpcc(signal,16000,'order',10);

msf_ssc - Spectral Subband Centroids §

 function feat = msf_ssc(speech,fs,varargin)

given a speech signal, splits it into frames and computes Spectral Subband Centroids for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 sscs = msf_ssc(signal,16000,'nfilt',40,'ncep',12);

msf_powspec - Compute power spectrum of audio frames §

 function pspec = msf_powspec(speech,fs,varargin)

given a speech signal, splits it into frames and computes the power spectrum for each frame.

optional arguments supported include the following 'name', value pairs from the 3rd argument on:

Example usage:

 lpcs = msf_powspec(signal,16000,'winlen',0.5);