Skip navigation
This discussion is archived

Replacing audio in QT movie doesn't change overall size of movie?

5953 Views 1 Reply Latest reply: Apr 9, 2008 9:40 AM by QuickTimeKirk RSS
Ben Low Level 1 Level 1 (45 points)
Currently Being Moderated
Apr 9, 2008 7:55 AM
H-264 movie made for web distribution. My best video compressor only creates AIF audio files ... which are mighty big.

I made an MP3 audio file in Logic.

I replaced the original AIF audio in the Quicktime movie with the MP3 audio ... (which is 23 megs smaller) but 'info' says the QT movie is still the same size.

How can I replace audio track in QT movie (with a smaller size audio track ... and see the difference registered in the QT movie 'info'?

All ears,

G5 2.5Ghz, Mac OS X (10.4.2)
  • QuickTimeKirk Level 8 Level 8 (47,365 points)
    Open your audio/video QuickTime file and then open the the Movie Properties window.
    Highlight (single click) on the "Video" track and "Extract" (upper left of that window) to make a new video only version.
    Open your audio QuickTime file, select all (Command-A) and copy (Command-C). This stores your audio track on the Clipboard.
    Switch back to your "extracted" video track, select all (Command-A) and choose "Add to Selection & Scale" (Edit menu).
    Test this file and then "Save As" to make a self contained QuickTime .mov file from these parts.
    Mac mini (G4 1.4), iMac G3 400, and Sony laptop using XP, Mac OS X (10.5.2), 10.3.9 OS 9.2


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.