Probably everyone has done one so I figured I might try as well.
After reading a few documents and a thread at EmuTalk I was able to do a really buggy Chip-8 emulator which properly runs about 1% of the games

Since this was just to get a basic idea how emulators work I didn´t bother to polish the emu or fix the bugs.

Now it might be a while until I start anything similar or fix the issues on this emulator but I was wondering about one thing:
How to actually emulate (make) a sound?
Can anyone post links to some docs about that?
For Chip-8 I simply used system beep which was enough but for any more advanced system (eg. Game Boy) that simply won´t cut it.

Thanks in advance for any help on that subject.

Btw: If you decide to download this alpha (should be pre-alpha really) emulator i hope that you will have fun laughing at glitches like I did.