Re: C program for playing sound

https://files.catbox.moe/5jvu18.wav
Here is the recording of the effect as requested, new code below.

#include <stdlib.h>
#include <stdint.h>
#include <alsa/asoundlib.h>

#define STEREO              2
#define BITS            16 / 8
#define FRAMEBUFFERSIZE   512 // in samples
#define PERIODS             2
#define SAMPLERATE      11025

void snd_error_checker(int error, char *function_name)
{
     if (error)
     {
         printf("Error (%s): %s\n", function_name, snd_strerror(error));
         // exit(EXIT_FAILURE);
     }
}

int main(void)
{
     snd_pcm_t *handle;
     uint32_t channels                   = STEREO;
     uint32_t sample_size                = BITS; // 16 bit
     uint32_t frame_size                 = sample_size * channels;
     snd_pcm_uframes_t frames            = FRAMEBUFFERSIZE / frame_size;
     snd_pcm_uframes_t frames_per_period = frames / PERIODS;
     int32_t dir = 0; // No idea what this does.
     snd_pcm_hw_params_t *params;
     int16_t *buffer;
     FILE *wav;
     int32_t size;
     int error;

     error = snd_pcm_open(&handle, "default", SND_PCM_STREAM_PLAYBACK, 0);
     snd_error_checker(error, "snd_pcm_open()");
     snd_pcm_hw_params_alloca(&params);
     error = snd_pcm_hw_params_any(handle, params);
     snd_error_checker(error, "snd_pcm_hw_params_any()");
     error = snd_pcm_hw_params_set_buffer_size(handle, params, frames);
     snd_error_checker(error, "snd_pcm_hw_params_set_buffer_size()");
     error = snd_pcm_hw_params_set_period_size(handle, params, 
frames_per_period, dir);
     snd_error_checker(error, "snd_pcm_hw_params_set_period_size()");
     error = snd_pcm_hw_params_set_rate(handle, params, SAMPLERATE, dir);
     snd_error_checker(error, "snd_pcm_hw_params_set_rate()");
     error = snd_pcm_hw_params_set_access(handle, params, 
SND_PCM_ACCESS_RW_INTERLEAVED);
     snd_error_checker(error, "snd_pcm_hw_params_set_access()");
     error = snd_pcm_hw_params_set_channels(handle, params, STEREO);
     snd_error_checker(error, "snd_pcm_hw_params_set_channels()");
     error = snd_pcm_hw_params_set_format(handle, params, 
SND_PCM_FORMAT_S16_LE);
     snd_error_checker(error, "snd_pcm_hw_params_set_format()");
     error = snd_pcm_hw_params(handle, params);
     snd_error_checker(error, "snd_pcm_hw_params()");

     // Insert samples to framebuffer.
     wav = fopen("pcm1611s.wav", "r");
     fseek(wav, 0L, SEEK_END);
     size = ftell(wav);
     fseek(wav, 0L, SEEK_SET);
     buffer = malloc(size);
     fread(buffer, sizeof(int16_t), size, wav);
     fclose(wav);
     size /= sizeof(int16_t);

     // Set ptrbuffer 46 bytes ahead to skip the header.
     for (int16_t *ptrbuffer = buffer + 46; size > ptrbuffer - buffer; 
ptrbuffer += FRAMEBUFFERSIZE * STEREO * BITS)
     {
         error = snd_pcm_writei(handle, ptrbuffer, frames);
         if (error)
         {
             snd_pcm_recover(handle, error, 0);
         }
     }
     snd_pcm_drain(handle);
     snd_pcm_close(handle);
     exit(EXIT_SUCCESS);
}