PC speaker

I've been reading about outputting PCM audio through the internal PC speaker using "Pulse-width modulation". If I understand correctly, this is acheived by retracting the speaker cone before it has a chance to fully extend. My question is now this: would it be possible, by spending all CPU resources on this task, to keep the speaker cone in its current mid-extension position, by rapidly (as fast as the CPU will allow) toggling the current to it?

>>14
You've never seen shitty Christmas lights or low brightness LED displays. With shitty Christmas lights you can see them flicker, just like CRTs.

With LED backlit displays, turn down their brightness, then wave your hand in front of them. Compare to when the brightness is at max.