Adding music to iMovie takes three steps: import the audio file, drag it into the timeline below your video, and adjust the volume so dialogue stays clear

iMovie stores audio in a separate track from your video, so you can add, trim, and fade music without touching your footage. The audio appears as a colored bar underneath your video clips in the timeline — you can see exactly where it starts and stops, and how it overlaps with dialogue or sound effects.

You can add music from your Mac's music library, from files you've downloaded, or from iMovie's built-in royalty-free soundtrack collection. The process is the same regardless of source: find the audio, drag it to the timeline, then adjust volume and timing to match your edit.

Key Takeaways

  • iMovie's audio track sits below your video in the timeline, so you can see exactly when music starts, stops, and overlaps with dialogue.
  • You can add music from Apple Music, your iTunes library, GarageBand projects, or iMovie's built-in royalty-free soundtrack collection without worrying about copyright.
  • Dragging audio into the timeline is faster than using menus — click and hold the audio file, then drop it where you want it to start.
  • Volume adjustment is the most important step: lower background music when someone is speaking so viewers can hear both.

Finding and importing audio into your iMovie project

iMovie can pull music from several places. The fastest source is iMovie's built-in soundtrack library — click the Music and Sound Effects button (the musical note icon) in the toolbar, then browse by mood or instrument. These tracks are royalty-free, meaning you can use them in videos you share publicly without copyright strikes.

If you want to use a song from your Mac's music library, open the Music app in a separate window, then drag the song directly into iMovie's timeline. You can also import audio files you've downloaded — just locate the file in Finder and drag it into the timeline the same way.

GarageBand projects work too. If you've recorded or composed audio in GarageBand, save it, then drag it into iMovie. This is useful if you want to add a voiceover or background music you've created yourself.

Placing audio in the timeline and adjusting timing

Once you've found your audio, click and hold it, then drag it into the audio track below your video clips. The audio will snap to the playhead (the vertical line showing where you're currently viewing) or to the edge of a nearby clip, making it easier to line up with specific moments in your video.

If the audio doesn't start exactly where you want it, click the audio clip in the timeline to select it, then drag the left or right edge to trim it. Dragging the left edge moves the start point forward; dragging the right edge shortens the end. You can also drag the entire audio clip left or right to move it without changing its length.

Play through your timeline to check the timing. Use the spacebar to start and stop playback, and watch the video and audio together to make sure music enters and exits at the right moments.

Controlling volume so dialogue stays audible

The most common mistake is leaving background music too loud. When someone is speaking, viewers need to hear the words clearly — music should support the dialogue, not compete with it.

To adjust volume, double-click the audio clip in the timeline. A volume slider appears above the clip. Drag the slider left to lower the volume, right to raise it. For background music under dialogue, aim for a level where you can still hear the music but the words come through clearly. Test by playing the section and listening with your speakers at normal volume.

If you want music to fade in or out smoothly instead of starting or stopping abruptly, click the audio clip, then look for the fade handles — small circles at the start and end of the audio bar. Drag these inward to create a fade. A fade-in makes music appear gradually; a fade-out makes it disappear gradually.

Using multiple audio tracks for layered sound

iMovie lets you add more than one audio track at a time. You might have background music, a voiceover, and sound effects all playing together. Each one gets its own track in the timeline, stacked vertically.

Add a second audio clip by dragging it into the timeline just like the first one. If it lands on top of your existing audio instead of creating a new track below it, drag it lower in the timeline area until a new track appears. You can then adjust each audio clip's volume independently.

This is especially useful for voiceovers — record your narration in GarageBand or Voice Memos, import it as a separate audio track, then layer background music underneath at a lower volume.

Removing or replacing audio in your project

If you've added music but want to remove it, click the audio clip in the timeline and press Delete. The video stays intact; only the audio disappears.

To replace audio without deleting it first, straightforward drag a new audio file onto the timeline. If you drag it to the same track where audio already exists, iMovie will ask whether you want to replace the existing clip or create a new track. Choose based on what you're trying to do — replace if you want to swap one song for another, or create a new track if you want both playing together.

Exporting your video with the audio included

When you export your finished iMovie project, the audio exports along with the video automatically. Click File, then Export, and choose your format — most people choose File to save as an MP4 video file, or YouTube if you're uploading directly to that platform.

The export process takes longer if your video is long or your Mac is older, but the audio stays synced with the video throughout. Once the export finishes, you can share the file or upload it anywhere.

Frequently Asked Questions

Can I use copyrighted music from Spotify or Apple Music?

Not without permission. Music from streaming services is protected by copyright, and using it in a video you share publicly will trigger copyright claims or takedowns. iMovie's built-in soundtrack library and royalty-free services like YouTube Audio Library are safe alternatives.

How do I record a voiceover and add it to my video?

Use the Voice Memos app on your Mac or GarageBand to record yourself speaking. Save the file, then drag it into iMovie's timeline as a separate audio track. Position it where you want the voiceover to start, adjust the volume so it's louder than background music, and trim the edges if needed.

What if my audio is out of sync with the video?

Click the audio clip in the timeline and drag it left or right to shift its timing. Play through the section to check alignment. If the audio drifts out of sync partway through, the file itself may have a timing issue — try re-exporting it from its source or using a different audio file.

Can I fade music in and out at the same time?

Yes. Click the audio clip to select it, then drag the small circle at the start of the audio bar inward to create a fade-in, and drag the circle at the end inward to create a fade-out. Both fades can happen in the same clip.