Mac os x output

Did you check your input volume in your sound system preferences?

I mean open the sound system preferences, click the input tab, and see if the input volume slider is set high enough so that the input level is registering input sound.

Why did you flag my question post as correct? Or did you do what I said here after your last post and that fixed the problem?

zoefromnsw wrote:

My mac os x output sound doesn't work when i skype someone

The sound settings for Skype are done in Skype Preferences, not in System Preferences.

Look at that Preference pane I illustrated. Keep still - don't type - and speak at a normal volume. Do you see the sound meter moving? If so does it read at least half way up?

Now type or bang the table. Do you see the sound meter moving?

And you are using the internal microphone?

Try this. Open the Quicktime X player. From the File menu choose 'New Audio recording'. Click the little down-arrow at the right-hand side to confirm that it is set to the internal microphone.

Click the red 'record' button in the center and record yourself speaking, typing and banging on the table. Click the same button to stop. You can now play the recording and listen to it. Can you hear your voice at all? When you type or bang the table do you hear the sort of sounds you expect, or crackling sounds, or what? If you can post the recording it might be useful (upload it to your webspace if any, and post the URL).

or as 'Quicktime Player' in your Applications folder (having it may depend on the version of Snow Leopard you have, I'm not sure whether it was there from the beginning).

zoefromnsw wrote:

what webspace

You'd know if you had any. Are you able at least to make the recording and report on it? If not, my suspicion can't be confirmed, but I rather think your mic is faulty. This will require the services of an authorised repair centre.