The exact sound format remains unknown at present. I will attempt to support it in the next release, but it likely will be experimental and unfinished. See more here:
http://wiibrew.org/index.php?title=Wiimote#Speaker
http://www.wiili.org/index.php/Wiimote#Speaker
As far as I know this API (for Java) supports usage of the Wiimote speaker:
http://www.wiili.org/WiiremoteJ
Has any progress been made into this? I found a GlovePIE script that apparently does what we need(/want):
http://www.wiili.org/forum/wiimote-speaker-script-t839.html
That's not quite the whole story...that script just plays a single frequency at a time through the speaker. That's easy. Playing back a recorded sample is much less forgiving since the actual sound format for playback is unknown and, as others have tried and found, the bluetooth stack doesn't seem able to keep up with playback 100% of the time so you wind up with pops/noise in the playback.
I may add some experimental sound support for the next version, but it won't be anywhere near perfect.
Brian Peek:Playing back a recorded sample is much less forgiving since the actual sound format for playback is unknown and, as others have tried and found, the bluetooth stack doesn't seem able to keep up with playback 100% of the time so you wind up with pops/noise in the playback.
polite bump :)