The audio on my macbook air keeps shutting down

Question

I have just had a new Macbook air with OS X 10.9 on it.
The audio works on speakers and also on headphones when I start up the computer, but after I plug in my headphones and used an application like Skype or just itunes, and then close the screen for a while, the audio stops working on both the mini-jack port and the built in speakers.
Yes, I have tried all the steps from this article http://support.apple.com/kb/TS1574
The built in speakers are on, it is not muted, the volume scale goes up and down - but there is no sound output whatsoever.
If I restart the computer, the audio works again, but it is getting a little tedious having to restart my mac whenever I want the audio to work.
Anyone with similar experience? Am I unknowingly doing some kind of keyboard shortcut that disables all audio?
Help!

Answer 1

Maiakm
but after I plug in my headphones and used an application like Skype or just itunes, and then close the screen for a while
Yes, this is a known little issue Ive personally tested quite a lot, .....techs are working on a fix.
A: if you put your Air to sleep keep headphones unplugged
B: go into Sys preference > energy >  UNcheck "put hard disks to sleep" on both tabs
C: IF you have the APP BOOM installed........REMOVE it, period
Peace
Am I unknowingly doing some kind of keyboard shortcut that disables all audio?
No, its a little issue to be fixed in Mavericks with the Air.
REF:
https://discussions.apple.com/thread/5482053?start=60&tstart=0