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iMovie audio disappearing

Hello!


I have several mp4 files with clear audio and when I upload them to iMovie to create to a video, there is no audio on playback. I've tried restarting both my computer, the app, as well as creating a new 'movie'. No luck. I also deleted the app and reinstalled. Google didn't have any answers and neither did my tech friends... so help?

MacBook Air 13″, macOS 10.15

Posted on Jul 9, 2020 1:12 PM

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Question marked as Top-ranking reply

Posted on Jul 9, 2020 4:50 PM

Not all Mp4 works with iMovie. It needs to be Mp4/AAC. AAC stands for Advanced Audio Coding.


Try converting your troublesome clips to H.264, Mp4/AAC with the free download, Handbrake. Do that even if the codec already is indicated to be Mp4/AAC. Re-rendering often cures the issue.


You can get Handbrake here:


https://handbrake.fr/


A simple way to do it is to open Handbrake and do a File/Open Source. Navigate to your video and choose it as the source from the resulting screen. Then do File/Start Encoding. Wait a couple of minutes for the conversion to complete. Then save and import the converted clip into iMovie. Now see if you get sound.


-- Rich

3 replies
Question marked as Top-ranking reply

Jul 9, 2020 4:50 PM in response to jesmccowan

Not all Mp4 works with iMovie. It needs to be Mp4/AAC. AAC stands for Advanced Audio Coding.


Try converting your troublesome clips to H.264, Mp4/AAC with the free download, Handbrake. Do that even if the codec already is indicated to be Mp4/AAC. Re-rendering often cures the issue.


You can get Handbrake here:


https://handbrake.fr/


A simple way to do it is to open Handbrake and do a File/Open Source. Navigate to your video and choose it as the source from the resulting screen. Then do File/Start Encoding. Wait a couple of minutes for the conversion to complete. Then save and import the converted clip into iMovie. Now see if you get sound.


-- Rich

iMovie audio disappearing

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