7 Replies Latest reply: May 7, 2008 7:21 PM by Graham K. Rogers
Rodman Flender Level 1 Level 1 (5 points)
I'm trying to record some video clips using my built-in iSight and Photo Booth, but the sound on the videos is wildly out of sync with the picture. Any suggestions to solve this problem are greatly appreciated, thanks!

Intel iMac, Mac OS X (10.5.2), 2.4 GHz Core 2 Duo, 2 GB 667 MHz DDR2 SDRAM
  • vince bennett Level 1 Level 1 (20 points)
    Photo Booth is not a video recorder Rodman, Do you mean iMovie?
  • Graham K. Rogers Level 5 Level 5 (5,430 points)
    I beg to differ, Vince. With PhotoBooth one may save still images, a series of stills, or a movie.

    As to Rodman's original query, I am unable to make any definite suggestion. Do you have enough RAM; are there several other applications open at the same time (particularly those that might also have access to iSight, like Comic Life, iMovie, iChat)?

    Have you tried restarting the computer or clearing preferences, e.g com.apple.PhotoBooth.plist in the USERNAME>Library>Preferences folder?
  • Rodman Flender Level 1 Level 1 (5 points)
    Thanks for your suggestions - I'll give them a try. I assumed 2 gigs was enough ram. Maybe I was wrong.
  • EZ Jim Level 7 Level 7 (21,680 points)
    Hello Rodman Flender

    I see you have not marked your question "Answered" yet, so you might want some other input after you try Graham's good ideas. If you don't already have resolution, when you post back, please key your answer numbers to the following questions. The additional info may help us offer more specific suggestions.

    (1) Try playing one of your saved PB clips back with the QuickTime Player. Is it equally out of sync when played back in QT? Does the sync delay seem constant throughout the clip, or some parts of the clip better than others? How may seconds would you estimate the "wildly out of sync" delay to be: a quarter-second, two seconds, ten seconds, etc.?

    (2) If you were not in a brightly lighted room when you noticed the problem, try restarting your Mac and, with no other apps running, and with LOTS of light, try another PB video recording to see if that works better.

    (4) Photo Booth is a basic, "fun", application, so it is not unusual for PB-recorded audio to be slightly out-of-sync. However, iMovie files played back in the QuickTime Player should be accurate. Testing that can help determine whether your problem is unique to PB or might indicate that your Mac or your file system needs attention.

    Try making a similar length video recording of a similar subject in good light using iMovie. Is the iMovie recording better synced than the PB playback of the PB recording? If you notice a delay in iMovie, too, what is your estimate of the iMovie delay in seconds?

    (4) Also, save (share) the iMovie recording and play the saved file back with QuickTime player. Is the saved iMovie video better synced during QT playback?

    (5) Use Get Info on your iMac's hard disk. Post back your "Capacity" and "Available" space numbers so we can rule out a lack of disk space as a contributor.

    If necessary, we will try to offer other suggestions based on the additional details you provide.

    EZ Jim

    PowerBook 1.67 GHz w/Mac OS X (10.4.11) G5 DP 1.8 w/Mac OS X (10.5.2)  External iSight
  • Rodman Flender Level 1 Level 1 (5 points)
    Thank you so much for your long and detailed reply. iMovie version 7 captured a video in sync. iMovie HD, my preferred version of iMovie, didn't recognize the iSight. And yes, the Photo Booth videos viewed in QT were still wildly out of sync - I define wildly as almost a second, and that's very bad especially when you're playing guitar! I hope they can fix this in Photo Booth because I liked its one-click video capture ease.

    Thanks again.
  • EZ Jim Level 7 Level 7 (21,680 points)
    You're welcome Rodman
    Thanks for the letting us know you got the answers you needed.

    In addition to posting here in this user discussion forum, you can use Mac OS X Feedback to send your Photo Booth suggestions directly to Apple. You will not get an answer, but you can be certain that Apple will see your input for consideration in future products.

    To offer Feedback on other Apple products, use Product Feedback for the product most closely related to your concerns.

    EZ Jim

    PowerBook 1.67 GHz w/Mac OS X (10.4.11) G5 DP 1.8 w/Mac OS X (10.5.2)  External iSight
  • Graham K. Rogers Level 5 Level 5 (5,430 points)
    2Gigs? Definitely enough.

    I see EZJim has given you the information to help you fix it over and above my starter ideas (I have learned something too). And thanks for the Star.