My computer has suddenly stopped making noise.

When i plug my headphones in it dosnt work, nor does the sound work without headphones. DOes anyone know how to fix it?

Hello Batfanmanfanman,
I would be concerned too if audio from my Mac was not working. I found a couple of articles with steps you can try.
I recommend first resetting the PRAM on your computer:
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
You can find the full article here:
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
I found another article that is applicable to the audio issue as well. I recommend reviewing the steps in the following article:
Troubleshooting issues with no audio from built-in speakers on Macs
http://support.apple.com/kb/TS1574
Thank you for posting in the Apple Support Communities.
Best,
Sheila M.

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