Emulator

WAV and MP3 would be the most used formats, I'd say. Sound output mix is different
from what I'm requesting, that's the real-time sound output from your computer. I'm
talking about the sound output from Dolphin dumped to an AVI along with rendered
frames, then played back later in real time. Unless I'm interpreting your question
wrong?

He wants Dolphin to dump video with sound (as a single video file). I'd like this too.

Yeah, very cool for make speedruns, tas, walkthrough and more :D!!We need sound in
framedump.
Ps : Isn't easy put sound in framedump? :P

Issue 2886 has been merged into this issue.

uhhh...nobody tried to do it?

Agreed, don't know why this has seemed to have lost interest. Would really like to see some further development into this, it will change Dolphin a great deal in terms of recording gameplay and speedruns.

http://forums.dolphin-emulator.com/showthread.php?tid=14984

This hasn't been thoroughly tested, but it seems to do the trick.

Is there a build with those patches?

I broke my build trying to apply it-- TortoiseSVN is a pain with patches. I'm trying to figure it out, and I'll post a build if I get it working.

Thanks for the effort thegamefreak. ;)