public ALCapture(AudioCaptureOptions options)
{
mutex.WaitOne();
usingResource++;
if (usingResource == 1)
{
// opens the default device.
_device = AlNative.alcCaptureOpenDevice(null, (uint)options.SampleRate, AlNative.AL_FORMAT_MONO16, 128);
checkAlcError();
}
mutex.ReleaseMutex();
}