Originally Posted by skn-xda
I think I may have figured out the cause - Viber. I froze it with TB, charged phone to full, unplugged, restarted and now the 1013 (audio_out4) wakelock is only 1s since 1h30m or so. Earlier it would have been almost as much as 1h25m!
I solved it by removed the viber also.
I experienced the same problem.
Don't know what is causing it as I have totally lost track what is my last installed or updated application.
Tried reinstall it & didn't see the audioout 4 wakelock again...sounds good for first steps.
Then install 5 applications one n tried reboot as the problem can be seen immediately.
Finally, got to know it was actually caused by d viber application. Not sure whether it was my last update on around 20 Mar.
It works perfectly now after two days so far.