Sound Out of Sync After Uploading to Imovie
Troubleshoot audio or video problems with uploads on YouTube
If you're having problems with the sound or video of your upload, try these troubleshooting steps to solve the result.
Audio bug
Audio and video are out of sync
Make sure that the durations of your audio and video tracks are the aforementioned. If your audio track is shorter or longer than your video, your audio and video may non sync correctly.
Sound plays on a computer just not on a mobile device
If your video's sound is playing correctly on a estimator but not on a mobile device, your audio may have poor mono compatibility.
Videos often have stereo audio, which contains audio for left and right speakers (similar headphones). Almost mobile devices only have 1 speaker. When your mobile device plays stereo audio, it has to convert information technology to mono (unmarried speaker) audio before your video plays.
If the audio in your video has poor 'mono compatibility', the mono conversion process can reduce the sound quality or mute the sound. This problem often happens when several audio recordings are used in one video.
Make sure that your audio is 'in phase'.
Other sound or video problems
Editing your video'south settings can solve common audio and video issues. To review and change your video's settings:
Open the video in a video-editing program
To open your raw video, employ a video-editing program on a calculator. If you recorded your video on a mobile device, you lot can open the video using a mobile editing app.
Verify video settings
In your video editor, double check that your video settings lucifer our recommended upload settings.
Video settings:
- Compression Blazon: H.264
- Frame rate: 24, 25, xxx, 48, 50, 60 FPS rates are preferred. Other less mutual frame rates like 23.98, 29.97 and 59.94 are also acceptable.
- Data rate: Automatic
- Key frames: Automatic
- Frame reordering: Unticked
Audio/Sound settings:
- Format: AAC-LC
- Bitrate: 128–256 kbps
- Sample rate: 44100 or 48000
Other settings:
- Size: Choose the original size of the video
Save and export
Once the video has the recommended settings, re-upload the video on YouTube.
Video issues
New video can't be played in higher qualities (4K, 1080p)
When you upload a video, it volition initially be candy in a low quality. This process helps you complete the upload catamenia faster. Higher qualities, such as 4K or 1080p, tin have more than time to process. While this processing happens, your video may seem to be missing higher qualities for several hours.
If you'd like new uploads to be available in all qualities, try uploading your video as unlisted first. You can later make your video public once all qualities are bachelor. Learn more than about video quality for new uploads.
Note: Higher qualities like 4K may non be available on specific devices or browsers because of platform limitations.
Colours aren't being displayed correctly
If colours aren't beingness displayed correctly, make sure that your video'south transfer characteristics, colour primaries and color matrix coefficient metadata friction match how the video was mastered.
- Not-HDR videos: Use BT.709
- HDR videos: Larn more
If colours still aren't being rendered correctly, it may be due to your browser or device. To isolate the problem, exam your original video and your YouTube upload on other browsers.
Other sound or video bug
Editing your video'southward settings can solve common audio and video bug. To review and change your video's settings:
Open the video in a video-editing program
To open your raw video, apply a video-editing programme on a computer. If you lot recorded your video on a mobile device, you lot can open the video using a mobile editing app.
Verify video settings
In your video editor, double check that your video settings match our recommended upload settings.
Video settings:
- Compression Type: H.264
- Frame rate: 24, 25, xxx, 48, l, threescore FPS rates are preferred. Other less common frame rates like 23.98, 29.97 and 59.94 are too acceptable.
- Data rate: Automatic
- Key frames: Automatic
- Frame reordering: Unticked
Audio/Audio settings:
- Format: AAC-LC
- Bitrate: 128–256 kbps
- Sample rate: 44100 or 48000
Other settings:
- Size: Cull the original size of the video
Save and export
Once the video has the recommended settings, re-upload the video on YouTube.
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Source: https://support.google.com/youtube/answer/58134?hl=en-GB
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