Wave problem

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#1251

From: Mike
Date: Sat, 14 Apr 2001 15:40

26 lines
1473 bytes

Hi!

What is wrong with this code? It should generate raw wave data (8-bit,
48.000 Hz, unsigned) - triangular wave, but it doesn't. It generates
something
like that, but with some strange offsets.

=========================================
#include <math.h>
#include <iostream.h>
unsigned long int freq = 1;
unsigned long int i;
main() {
 FILE *output_file;
 output_file = fopen("test.raw", "wb");
 for (i = 0; i < (freq * 48000); ++i) {
  fputc(int(256.0 * fabsl(fmodl((2.0 * i * freq) / 48000.0 - 0.5, 2.0) -

1.0) - 128.0), output_file);
 }
 fclose(output_file);
}
=========================================


Mike

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