New PC-Speaker driver
Hello.
Quoted 5 lines · Albert D. Cahalan
Quoted 3 lines
as it's opened it starts generating some horrible clicks and a
high-pitched whine.
Do I blame my motherboard (actually, a laptop)? Is there any way to fix this, or at least improve it?Adding a capacitor is supposed to help a PC speaker sound driver.
Ah, of course, that's what Denis Vlasenko was talking about, now I see.
Clicks are caused by disabled ints, but whine is another problem.
Recalling my old 386 board where I tried similar driver under DOS and it also produced high pitched tone so I ended up adding a capacitor, which solved the problem. Now I think that the better solution is to add an option to use higher modulation rates.
I have added an option to use 36KHz instead of 18.5KHz. I beleive that this is far above the frequency range of any motherboard and can solve the problem.
Andrew Rodland, could you please test the new patch from my page and see if enabling the high freq modulation fixes your problem, at least whine, not clicks?