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iPhone User Guide

Trim video length, adjust speed, and edit audio on iPhone

In the Photos app, you can trim a video you recorded on your iPhone to change where it starts and stops. You can also adjust the playback speed, and change the portion of a video that appears in slow motion when you record in Slo-mo mode.

When you record a video with Spatial Audio, you can use Audio Mix to edit the sound in the Photos app (available on supported models).

Trim a video

  1. Go to the Photos app 👁 Image
    on your iPhone.

  2. Open a video, then tap 👁 the Edit button
    .

  3. Drag either end of the frame viewer below the video to adjust the start and stop times, then tap Done.

  4. Tap Save Video to save only the trimmed video, or Save Video as New Clip to save both versions of the video.

    👁 The Edit screen in the Photos app with a video playing in the center. In the frame viewer below the video, frames to include in the trimmed video are selected and outlined in yellow. On the bottom of the screen are the Video, Audio Mix, Adjust, Filters, and Crop buttons; the Video button is selected.

To undo edits after you save, open the video, tap 👁 the Edit button
, then tap Revert.

Note: A video saved as a new clip can’t be reverted to the original.

Edit the video playback speed

You can slow down videos that were captured at a high frame rate for a dramatic effect.

  1. Go to the Photos app 👁 Image
    on your iPhone.

  2. Open a video, tap 👁 the Edit button
    ,     then tap Video.

  3. Tap 👁 the Playback Speed button
    ,     then tap a playback speed.

    Note: The playback options available depend on the format of the video you captured. The larger the format you capture, the more options are available.

Edit the slow-motion section of a video shot in Slo-mo mode

  1. Go to the Photos app 👁 Image
    on your iPhone.

  2. Open a video shot in Slo-mo mode, then tap 👁 the Edit button
    .

  3. Drag the black vertical bars beneath the frame viewer to set where the video is played in slow motion.

Edit sound with Audio Mix

When you record a video with iPhone 16 or later, you can choose between three recording options: Spatial Audio, Studio, and Mono. When you record with Spatial Audio, you can use Audio Mix to customize the sound in your video.

  1. Go to the Photos app 👁 Image
    on your iPhone.

  2. Open a video, then tap 👁 the Edit button
    .

  3. Tap Audio Mix, then choose one of the following:

    • Standard: Play the original audio you recorded.

    • In-Frame: Reduce sounds and voices from sources not visible in the video frame.

    • Studio: Reduce background sounds and reverb, to make it sound more like you’re recording in a professional studio.

    • Cinematic: Put all the voices onto a front-facing track and leave environmental noises in surround, like the audio in movies.

  4. Drag the slider below the mix options to increase or decrease the effect and background noise levels.

  5. Tap Done.

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