interpreter/lib/src/libsndfile-1.0.25/Octave/sndfile_save.m

   1 ## Copyright (C) 2002-2011  Erik de Castro Lopo
   2 ##
   3 ## This program is free software; you can redistribute it and/or modify
   4 ## it under the terms of the GNU General Public License as published by
   5 ## the Free Software Foundation; either version 2, or (at your option)
   6 ## any later version.
   7 ##
   8 ## This program is distributed in the hope that it will be useful, but
   9 ## WITHOUT ANY WARRANTY; without even the implied warranty of
  10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 ## General Public License for more details.
  12 ##
  13 ## You should have received a copy of the GNU General Public License
  14 ## along with this file.  If not, write to the Free Software Foundation,
  15 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 ## -*- texinfo -*-
  18 ## @deftypefn {Function File} {} sndfile_save (@var{filename, data, fs})
  19 ## Save the given @var{data} as audio data to the given at @var{fs}. Set
  20 ## the sample rate to @var{fs}.
  21 ## @end deftypefn
  22
  23 ## Author: Erik de Castro Lopo <erikd@mega-nerd.com>
  24 ## Description: Save data as a sound file
  25
  26 function sndfile_save (filename, data, fs)
  27
  28 if nargin != 3,
  29         error ("Need three input arguments: filename, data and fs.") ;
  30         endif
  31
  32 if (! isstr (filename)),
  33         error ("First parameter 'filename' is must be a string.") ;
  34         endif
  35
  36 if (max (size (fs)) > 1),
  37         error ("Second parameter 'fs' must be a single value, not an array or matrix.") ;
  38         endif
  39
  40 [nr nc] = size (data) ;
  41
  42 if (nr > nc),
  43         data = data' ;
  44         endif
  45
  46 samplerate = fs ;
  47 wavedata = data ;
  48
  49 str = sprintf ("save -mat-binary %s samplerate wavedata", filename) ;
  50
  51 eval (str) ;
  52
  53 endfunction