Forum Question: No sound QuickTime or iTunes

I have a Mac Pro 1st generation with 6Gb of Ram. The problem that I am experiencing is that I have no sound while using Apple Programs such as QuickTime. Quick Time will play my MPG videos but there is no audio. If I play the same videos using the VLC player they play perfectly with both video and audio. I can use iDVD to produce a DVD of my MPG or WMV movies but I obtain the same outcome with the resulting DVD having good video but not audio. The only apple OS X and iLife programs that have sound with it is iTunes and DVD player. If I install a DVD made with Wondershare DVD Creator the DVD player will play just fine and it has the audio. What do I have to do to get audio with QuickTime and iDVD?

— Don

Comments: 5 Responses to “No sound QuickTime or iTunes”

    9/6/10 @ 4:16 pm

    Here are some things to try:
    1. Restart
    2. Throw away sound preferences
    3. Check to make sure iTunes volume (the separate one in iTunes) isn’t down — though this wouldn’t explain QT
    4. Check the sound output device in the system prefs. Change and change back
    5. Try different videos. Perhaps the sound in those videos is using a strange setting and VLC is compensating while QT is not
    6. Take it to the Genius Bar and see what they say — no substitute for taking a hands-on look.

    9/6/10 @ 5:08 pm

    Thanks for the help and the suggestions. It’s not very easy for me to take my computer to a Genius Bar since I am a missionary to the country of Mexico and the closest Genius Bar is 3hours (150miles) away from me. I hope that what you suggest will work. You have been a great help to me on previous questions.

      9/6/10 @ 6:39 pm

      I hope so. But I’m a how-to guy, and you really need a fix-it guy. And a fix-it guy really needs to be hands on to be effective anyway.

    9/6/10 @ 6:09 pm

    I tried each thing that you suggested but nothing worked. The QT player will not even play the audio for Apple add material.

      9/6/10 @ 6:29 pm

      I’d try a system reinstall (backup first of course). Or, take it to an expert who can loom at it firsthand, like at the Genius Bar.

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