How to set music or sound from a video as your iPhone alarm
The Clock app on iPhone can't take the sound from a video. Its alarm sounds come from the ringtones on your phone and the songs in your music library.
Clokk can. Save the video to Photos, open the Sounds tab in Clokk, tap From a video and pick the video; Clokk keeps only its audio. Choose up to 29 seconds under Pick an excerpt, then choose the sound for an alarm under Local audio.
What you need
- An iPhone with iOS 26.1 or later, and Clokk from the App Store.
- The video in your Photos library.
- Room for one more custom sound. The free version keeps 2 (recordings and sounds from videos count together); a membership removes the limit.
1. Get the video into Photos
Clokk reads videos from Photos. Videos you filmed are already there. If the video is in another app, use that app's save or download option to put it in Photos. Clokk doesn't open links.
2. Pull the sound out of the video
- Open Clokk and go to the Sounds tab.
- Tap From a video. The iOS photo picker opens, showing only videos.
- Tap the video. Clokk shows Pulling out the sound… while it works. A video stored in iCloud is downloaded first, which can take a little longer.
- The new sound opens in its own card and is saved under Local audio. It is named after the video's file, and a frame from the video becomes its cover. Type a new name if you like.
3. Choose the part that rings
- Under Pick an excerpt, drag the two handles along the waveform. The label shows how much is selected, for example “12s selected · max 29s”.
- Set Volume, and turn Gentle fade-in on or off.
- Tap Done. Back in the list, tap the sound to hear the part that will ring.
4. Set it as the alarm sound
- Go to the Alarms tab and tap +, or tap an alarm you already have.
- Tap Sound, then the Local audio tab in the panel.
- Tap the sound. It plays and is chosen.
- Tap Use, then ✓ to save the alarm.
Why 29 seconds
iOS limits how long an alarm sound can be, so an alarm plays at most 29 seconds. Clokk keeps the whole audio, so you can choose a different part any time: tap Edit next to the sound in the Sounds tab.
What Clokk sees
Clokk uses the iOS photo picker, so it doesn't need access to your photo library. It reads only the video you pick, keeps only the sound, and uploads nothing. The video in Photos is left as it was.
To record a voice instead, see Use a voice recording as your iPhone alarm.
Related questions
Can I use a video from a social media app?
Yes, once the video is saved in Photos. Clokk reads videos from Photos; it doesn't take links.
Is the video kept in Clokk?
No. Clokk keeps only the audio and one frame for the cover. The video in Photos is unchanged.
Can I change the part that rings later?
Yes. In the Sounds tab, tap Edit next to the sound and drag the handles under Pick an excerpt.
Does the sound sync to my other iPhone?
Not at the moment. Audio from videos stays on the phone where you imported it.