toneAC v1.2 - Twice the volume, higher quality, higher frequency, etc.

I'm still testing it, but I think I found an error.

int f;

while(1)
{
  f = random( 50, 120);
  toneAC(f, 5, 0, true);
  delay(100);
  noToneAC();    // reset registers
}

The example is okay with the noToneAC() to reset the registers.
Try to remove the noToneAC(), that results in gaps in the sound.
Perhaps the counter has to roll-over ?