lumiera_/src/tool/main.c

/*
  OutputProbe  -  tool to investigate external output connections

  Copyright (C)         Lumiera.org
    2011,               Odin Omdal Hørthe <odin.omdal@gmail.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., 675 Mass Ave, Cambridge, MA 02139, USA.

* *****************************************************/


#include "alsa.h"

#include <unistd.h>
#include <stdint.h>
#include <stdio.h>


#define SAMPLE_RATE 44100

int16_t quiet[SAMPLE_RATE], noisy[SAMPLE_RATE];

void main () {

    for (int i=0; i<SAMPLE_RATE; i++)
    {
        quiet[i] = 0;
        noisy[i] = i%30000;
    }
    audio_start(44100, 2);

    for (int i=0; i<10; i++)
    {
        audio_write(noisy, SAMPLE_RATE);
        printf("=================================\n");
        audio_write(quiet, SAMPLE_RATE);
        printf("\n");
    }

    audio_stop();
}