www.pudn.com > voicebox2.zip > CONTENTS.M

% Voicebox: Speech Processing Toolbox 
% 
% Audio File Input/Output 
%   readwav    - Read a WAV file 
%   writewav   - Write a WAV file 
%   readhtk    - Read HTK waveform files 
%   writehtk   - Write HTK waveform files 
%   readsfs    - Read SFS files 
%   readsph    - Read SPHERE/TIMIT waveform files 
%   readaif    - Read AIFF Audio Interchange file format file 
%   readcnx    - Raed BT Connex database files 
% 
% Frequency Scales 
%   frq2mel    - Convert Hertz to mel scale 
%   mel2frq    - Convert mel scale to Hertz 
%   frq2erb    - Convert Hertz to erb rate scale 
%   erb2frq    - Convert erb rate scale to Hertz 
%   frq2midi   - Convert Hertz to midi scale of semitones 
%   midi2frq   - Convert midi scale of semitones to Hertz 
% 
% Fourier/DCT/Hartley Transforms 
%   rfft       - FFT of real data 
%   irfft      - Inverse of FFT of real data 
%   rsfft      - FFT of real symmetric data 
%   rdct       - DCT of real data 
%   irdct      - Inverse of DCT of real data 
%   rhartley   - Hartley transform of real data 
% 
% Random Number Generation 
%   randvec    - Generate random vectors 
%   usasi      - Generate USASI noise 
%   randfilt   - Generate filtered random noise without transients 
% 
% Vector Distances 
%   disteusq   - Calculate euclidean/mahanalobis distances between two sets of vectors 
%   distchar   - COSH spectral distance between AR coefficient sets  
%   distitar   - Itakura spectral distance between AR coefficient sets  
%   distisar   - Itakura-Saito spectral distance between AR coefficient sets 
%   distchpf   - COSH spectral distance between power spectra  
%   distitpf   - Itakura spectral distance between power spectra  
%   distispf   - Itakura-Saito spectral distance between power spectra  
% 
% Speech Analysis 
%   activlev   - Calculate the active level of speech (ITU-T P.56) 
%   enframe    - Divide a speech signal into frames 
%   spgrambw   - Monochrome spectrogram 
%   schmitt    - Pass a signal through a schmitt trigger 
% 
% LPC Analysis of Speech 
%   lpcauto    - LPC analysis: autocorrelation method 
%   lpccovar   - LPC analysis: covariance method 
%   lpc--2--   - Convert between alternative LPC representation 
%   lpcrr2am   - Matrix with all LPC filters up to order p 
%   lpcconv    - Arbitrary conversion between LPC representations 
%   lpcbwexp   - Bandwidth expansion of LPC filter 
%   ccwarpf    - warp complex cepstrum coefficients 
%   lpcifilt   - inverse filter a speech signal 
%   lpcrand    - create random stable filters 
% 
% Speech Synthesis 
%   glotros    - Rosenberg model of glottal waveform 
%   glotlf     - Liljencrants-Fant model of glottal waveform 
% 
% Speech Enhancement 
%   specsubm   - Spectral subtraction 
% 
% Speech Coding 
%   lin2pcmu   - Convert linear PCM to mu-law PCM 
%   pcma2lin   - Convert A-law PCM to linear PCM 
%   pcmu2lin   - Convert mu-law PCM to linear PCM 
%   lin2pcma   - Convert linear PCM to A-law PCM 
%   kmeans     - Vector quantisation: k-means algorithm 
%   kmeanlbg   - Vector quantisation: LBG algorithm 
%   potsband   - Create telephone bandwidth filter 
% 
% Speech Recognition 
%   melbankm   - Mel filterbank transformation matrix 
%   melcepst   - Mel cepstrum frontend for recogniser 
%   cep2pow    - Convert mel cepstram means & variances to power domain 
%   pow2cep    - Convert power domain means & variances to mel cepstrum 
%   gaussmix   - Fit a gaussian mixture model to data values 
% 
% Utility Functions 
%   zerotrim   - Remove empty trailing rows and columns 
%   permutes   - All n! permutations of 1:n 
%   choosenk   - All choices of k elements out of 1:n 
%   bitsprec   - Rounds values to a precision of n bits 
%   sprintsi   - Print a value with an SI multiplier 
%   logsum     - Calculates log(sum(exp(x))) without overflow 
%   dualdiag   - Simultaneously diagonalise two hermitian matrices 
%   dlyapsq    - Solve the discrete lyapunov equation 
 
% Unclassified 
%   window     -  
%   windowx    -  
 
% Missing 
 
%   Copyright (c) 1998 Mike Brookes 
% 
%      Last modified Wed Jan  9 15:22:33 2002 
% 
%   VOICEBOX is a MATLAB toolbox for speech processing. Home page is at 
%   http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html 
% 
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%   This program is free software; you can redistribute it and/or modify 
%   it under the terms of the GNU General Public License as published by 
%   the Free Software Foundation; either version 2 of the License, or 
%   (at your option) any later version. 
% 
%   This program is distributed in the hope that it will be useful, 
%   but WITHOUT ANY WARRANTY; without even the implied warranty of 
%   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
%   GNU General Public License for more details. 
% 
%   You can obtain a copy of the GNU General Public License from 
%   ftp://prep.ai.mit.edu/pub/gnu/COPYING-2.0 or by writing to 
%   Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA. 
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