+++ /dev/null
-/*
-** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-**
-** 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 should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include <sndfile.h>
-
-#include "utils.h"
-#include "generate.h"
-
-#define SF_MAX(x,y) ((x) > (y) ? (x) : (y))
-
-static float crappy_snare (float *output, int len, int offset, float gain, float maxabs) ;
-
-void
-generate_file (const char * filename, int format, int len)
-{ float * output ;
- float maxabs = 0.0 ;
-
- output = calloc (len, sizeof (float)) ;
-
- maxabs = crappy_snare (output, len, 0, 0.95, maxabs) ;
- maxabs = crappy_snare (output, len, len / 4, 0.85, maxabs) ;
- maxabs = crappy_snare (output, len, 2 * len / 4, 0.85, maxabs) ;
- crappy_snare (output, len, 3 * len / 4, 0.85, maxabs) ;
-
- write_mono_file (filename, format, 44100, output, len) ;
-
- free (output) ;
-} /* generate_file */
-
-static inline float
-rand_float (void)
-{ return rand () / (0.5 * RAND_MAX) - 1.0 ;
-} /* rand_float */
-
-static float
-crappy_snare (float *output, int len, int offset, float gain, float maxabs)
-{ int k ;
- float env = 0.0 ;
-
- for (k = offset ; k < len && env < gain ; k++)
- { env += 0.03 ;
- output [k] += env * rand_float () ;
- maxabs = SF_MAX (maxabs, fabs (output [k])) ;
- } ;
-
- for ( ; k < len && env > 1e-8 ; k++)
- { env *= 0.995 ;
- output [k] += env * rand_float () ;
- maxabs = SF_MAX (maxabs, fabs (output [k])) ;
- } ;
-
- return maxabs ;
-} /* crappy_snare */