Otherwise run a snapshot build, like M7. Apart from the screen dimming, it's a flawless build and I use it everyday.
This thread is full of a lot of complaining and empty whining, but no real constructive feedback
Look at the bug tracker and see if the problem is listed there. If not, file a bug for it. Make sure it's reproducible and get a logcat or whatever other files the devs need, if possible.
And check the nightly changelogs. The rom is being updated EVERYDAY. If you don't see any new commits for the mic or sound and it was broken in the previous nightly, guess what? It's probably still broken! There's no need to come on this thread and continually post about it.
Coming to this thread to state that something is broken is pretty much pointless. I doubt dhacker or any of the devs read this thread because every day the posts are exactly the same drivel (broken mic, camera, display, etc.) with no logcats or other helpful files or insight on fixing the problem (that's for the general section, NOT the dev forum). YOU ARE NOT HELPING DEVS BY DOING THIS. Given that dhacker has to contend with this in the dev section, it's a small wonder he feels like he's single-handedly supporting this device.
As many are too impatient and ignorant to learn how to use JIRA, I may start a bug tracking thread if needed like I did for my previous device as shown here: http://forum.xda-developers.com/show....php?t=2161205
But please, keep the dev forum clean and stop with the complaining. Helps no one and it's just more useless posts to sort through.