Record into WAV file

Question

Since I\'ve posted this question, I\'ve been trying to write a valid WAV file myself from raw PCM data. I\'ve managed to write the FLAC converter (tested and works), but it

Answer 1

Error codes returned by snd_* functions are negative. There are functions that can return a positive value to indicate success (e.g., snd_pcm_readi returns the number of frames).

Answer 2

TRY THIS:

printf("Channels: %d\n", hdr->number_of_channels);
for (i = 0; i < 2*16000/128; i++)
{
    printf("\n Recording %d",i);
    err = snd_pcm_readi(handle, buffer, frames);
    write(filedesc, buffer, size);
 }