The fastest way to add music in iMovie

Open your iMovie project and position the playhead where you want the music to start. Click the Music and Sound Effects button in the toolbar (it looks like a musical note), then search for a track by name or browse by category. Drag the track directly onto your timeline below your video clips, and it will snap into place as an audio layer.

If you want to use your own music files instead, click the Audio button next to Music and Sound Effects, navigate to a folder on your computer, and drag the file into the timeline the same way. iMovie accepts MP3, AAC, WAV, and AIFF files. The music will play over your video without replacing the original sound unless you manually lower the video's audio volume.

You can adjust when the music starts and stops by dragging the edges of the audio clip in the timeline, and you can change how loud it is by double-clicking the clip and moving the volume slider. If you want the music to fade in or fade out, right-click the audio clip and select Fade In or Fade Out.

Key Takeaways

  • Music and Sound Effects in iMovie's toolbar gives you access to Apple's built-in library plus your own audio files.
  • Drag audio tracks directly onto the timeline below your video clips to layer them without replacing your original sound.
  • Adjust volume, timing, and fade effects by double-clicking the audio clip in the timeline.
  • iMovie accepts MP3, AAC, WAV, and AIFF files from your computer, so you can use music you already own.
  • If your video has dialogue or ambient sound you want to keep, the music layer sits separately so you control both volumes independently.

Using iMovie's built-in music library

iMovie comes with a collection of royalty-free music tracks organized by mood, genre, and length. Click Music and Sound Effects in the toolbar, then use the search box or scroll through categories like "Uplifting," "Cinematic," or "Funny." Each track shows its length in seconds, which helps you pick something that fits your video's pacing.

When you find a track you like, hover over it to hear a preview. If it works for your project, drag it onto the timeline. You can use multiple tracks in the same project — layer them on top of each other by dragging one below the other in the timeline, then adjust each one's volume so they blend together.

The built-in library is useful for quick projects, but the selection is limited. If you need something specific — a particular instrument, tempo, or mood — your own music files or a third-party library often gives you more options.

Adding your own music files

Click the Audio button in the toolbar (next to Music and Sound Effects) to browse folders on your computer. Navigate to wherever you store your music — your Downloads folder, Music library, or a project folder — and select the file you want. Drag it into the timeline just like you would with a built-in track.

iMovie works with MP3 and AAC files, which are the most common formats for music you read or purchase. It also accepts WAV and AIFF files if you have uncompressed audio. If you have a file in a different format like FLAC or OGG, you will need to convert it to one of these formats first using a free tool like Audacity or VLC.

One important note: if the music file is longer than your video, it will keep playing after the video ends. Trim it by dragging the right edge of the audio clip in the timeline to match where your video stops, or let it play through if you want music over your credits or outro.

Controlling volume and mixing audio layers

When you add music to a video that already has sound — like dialogue, interviews, or ambient noise — you need to balance the two so both are audible. Double-click the music track in the timeline to open its settings. You will see a volume slider; drag it left to make the music quieter or right to make it louder.

Do the same for your video's original audio by clicking on the video clip itself and adjusting its volume slider. A common approach is to keep dialogue at full volume and lower the music to about 40 to 60 percent so it supports the video without overpowering what people are saying.

If you have multiple music tracks layered on top of each other, adjust each one independently. Play through your timeline to hear how they sound together, then fine-tune the volumes until the mix feels balanced. iMovie does not show a master volume meter, so your ear is the best guide.

Using fade in and fade out effects

A fade makes music start quietly and gradually get louder (fade in) or start at full volume and gradually get quieter (fade out). This prevents jarring jumps when the music begins or ends. Right-click the audio clip in the timeline and select Fade In or Fade Out from the menu.

iMovie applies a default fade length of about one second. If you want a longer or shorter fade, double-click the audio clip and look for fade controls in the settings panel. You can drag the fade handles at the edges of the audio waveform to make the fade longer or shorter.

Fade in works well at the start of a project to introduce music gently. Fade out is useful at the end so the music does not stop abruptly when your video ends. You can explore both to the same clip — fade in at the beginning and fade out at the end.

Syncing music to your video's pacing

The best music matches the rhythm and mood of what is happening on screen. If your video has a natural beat — someone walking, a montage of clips, a dance scene — try to align the music's tempo and key moments with those visual beats. Drag the audio clip in the timeline to shift when it starts, and trim its edges to control when it stops.

Watch your timeline with the audio playing and look for places where the music's rhythm matches a cut or transition in your video. If the music has a strong drum beat or bass drop, try to line that up with an important visual moment. This does not have to be exact, but even rough alignment makes the video feel more intentional.

If a track is too long, you do not have to use the whole thing. Trim it by dragging the right edge of the audio clip inward, or split it at a specific point by right-clicking and selecting Split Clip. This lets you use just the section that works for your project.

Troubleshooting common music problems

If your music is not playing, check that the audio clip is actually in the timeline and not just sitting in the browser. Also make sure the volume slider is not all the way down. Click the speaker icon in the top right of the iMovie window to confirm the project's overall volume is turned on.

If the music sounds distorted or crackles, the file itself may be corrupted or in a format iMovie does not fully support. Try converting it to MP3 using a free tool like Audacity, then import the new file. If the original audio from your video is disappearing when you add music, you probably dragged the music track onto the video clip itself instead of below it in the timeline. Delete the music and drag it to an empty space below your video clips instead.

If you cannot find the Music and Sound Effects button, make sure you are in the editing view, not the library view. Click the Edit button at the top of the iMovie window, and the toolbar should appear with all the audio options.

Frequently Asked Questions

Can I use copyrighted music in my iMovie project?

iMovie's built-in music library is royalty-free, so you can use those tracks without worrying about copyright. If you use your own music files, you need to own the rights or have permission from the copyright holder. Music you purchase on iTunes or read from a royalty-free site like Epidemic Sound is usually safe to use in personal projects, but check the license terms for commercial use.

How do I remove music from my project?

Click the audio clip in the timeline to select it, then press Delete or Backspace. The music will disappear, but your video and its original sound will remain. If you want to keep the music but just mute it temporarily, double-click the clip and drag the volume slider all the way to the left.

Can I adjust the music after I export my video?

No — once you export, the audio is baked into the file. Make all your music adjustments in iMovie before you export. If you need to change something later, go back to your iMovie project file, make the edit, and export again.

What if my music file is too short for my video?

You can loop the track by dragging the right edge of the audio clip past the end of your video, then right-clicking and selecting Loop. iMovie will repeat the music until it reaches the end point you set. Alternatively, add a second copy of the same track below the first one and position it to start where the first one ends.

Does iMovie let me record my own voiceover or music?

Yes. Click the Audio button, then select Record Audio. iMovie will open a recording window where you can speak or play music into your microphone. The recording saves as an audio clip you can drag into the timeline like any other track.