Sound issue -URGENT

[Ruzlier]

I am having an issue with my sound when I try and watch a youtube video. Audio randomly stops. It is usually at certain tones, as it will play for a few seconds, then stop for the rest of the video. It will stop at the same time if I re-watch a video over and over. It is different video to video,though.
Some videos where the sound is low, it does not happen.

When it happens, my audio devices shows "No audio devices connected" It is strange. No videos work from then on until I restart my browser.

It stays the same for each browser

I have:
Re-downloaded flash.
Cleared cookies, cache, history, ect.
Checked sound drivers.
Checked they are plugged in -__-
Tried another browser
Messed with flash settings.

I need to fix this soon for virtual school work due tomorrow
I am using chrome, and reinstalled it.

[WishBone]

It most likely is a driver issue. I know you mentioned you already checked them but I recommend double or even triple checking if you have the correct drivers installed. If all else fails, it could be an issue with your speakers or headphones.

[Mugetsu.]

I'd reinstall the driver or update the one you're using. If that doesn't help, I would send it to a specialist and see if they can find out the issue.