Step 1: Import the MP4 files which has no sound in iMovie Once you have downloaded the software from the Internet, a user friendly wizard will guide you through the complete installation process and you can also choose your custom settings in between. So users are given the complete freedom to try the software first before they pay. The software comes in both trial and purchase versions. Install and launch it.ĭownload Wondershare Wondershare UniConverter (Video Converter Ultiamte) ( for Windows, for Mac). Guide on how to Fix iMovie MP4 no sound after import Prepare: Download Wondershare UniConverter (Video Converter ultimate) for Mac. It’s easy to solve MP4 iMovie no sound issue on Mac Monterey, Big Sur, Catalina, macOS Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion, etc., or on iOS devices iPhone 11, iPhone 12, iPhone Xr, iPhone Xs, iPhone X, iPhone 8, iPhone 7, iPhone 6, iPhone 5, iPhone 4, iPhone 3GS, iPad, iPad Air, iPad mini and iPad Pro. To fix the issue of MP4 no sound in iMovie import, you can convert the unsupported MP4 to iMovie supported MP4 with AAC audio codec. iMovie supports audio codec of MP3, WAV, M4A, AIFF, AAC, if you video files are encoded in other audio codec, such as ac3, dts, mp3, you can encounter the problem of no audio in MP4 video playback in iMovie. The problem is caused by the audio codec isse.

The Reason why there is no sound or missing audio in MP4 imported in iMovie, iMovie for iOS iPhone/iPad and the Fix Though, MP4 is a supported video format for iMovie, many users find that MP4 video has no sound or audio after imported in iMovie (iMovie 10, iMovie 10.1.9, iMovie for iOS iPhone/iPad included). In the early post, TechiSky introduces the Best Video Format for iMovie, which is MP4, MOV, MPEG-2, AVCHD, DV, HDV, MPEG-4, H.264.

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