The basic steps for adding music to any video
Adding background music to a video means importing an audio file into your editing software, placing it on a separate audio track below your video, and adjusting its volume so it sits behind dialogue or other sounds. The process is nearly identical across all editing tools — you import the music, drag it to the timeline, and trim or fade it as needed.
The main difference between tools is where the import button lives and how many audio tracks you can stack. Free tools like DaVinci Resolve and iMovie let you add multiple music tracks; some phone apps limit you to one. Before you start, gather your music files in one folder so you can find them quickly.
Most people make one mistake early: they add music at full volume. Background music should sit underneath dialogue or narration, not compete with it. You will adjust the volume after you hear how it sounds against the rest of your audio.
Key Takeaways
- Import your music file into the editing software, then drag it onto an audio track below your video on the timeline.
- Background music should play at 30 to 50 percent volume so it does not drown out dialogue, narration, or other important sounds.
- Use fade-in and fade-out effects at the start and end of your music so it does not cut off abruptly.
- Most editing tools let you preview the audio mix before you export, so play back a section with both video and music to hear how they work together.
Importing music into your editing software
The first step is to tell your software where your music file lives. In DaVinci Resolve, click the Media Pool panel on the left, then click the folder icon and navigate to your music file. In iMovie on Mac, go to the Music and Sound Effects button in the toolbar, then search for your file or drag it directly into the project. On a phone with CapCut or similar apps, tap the Music button at the bottom, then Import Audio or Local Audio, and select your file.
Your music file should be in a common format: MP3, WAV, or M4A. If you have a file in a different format and your software will not recognize it, you may need to convert it first using a free tool like Audacity or an online converter — but start with the format your software expects, because conversion adds an extra step.
Once the file appears in your software, you have imported it. Do not click play yet. The next step is to place it on the timeline where your video sits.
Placing music on the timeline and syncing it to your video
Your timeline is the horizontal strip that shows your video broken into frames. Below the video track, there is usually an audio track or a space where you can add one. Drag your music file from the import panel directly onto that audio track. It will snap into place, usually starting at the beginning of your video.
If your music needs to start partway through the video — for example, after an intro or a title card — click and drag the music clip to the right until it lines up with the frame where you want it to begin. You can see the exact frame number as you drag, which helps you sync music to a specific moment like a beat drop or a scene change.
Play back a few seconds of your video with the music to hear how they sit together. This is the moment you will notice if the music is too loud, too quiet, or starting at the wrong time. Do not adjust anything yet — just listen and take notes on what needs to change.
Adjusting volume so music sits behind other sounds
Background music should never be louder than dialogue, narration, or important sound effects. The standard approach is to set your music to 30 to 50 percent of its full volume, then raise or lower it based on what you hear.
In most editing software, right-click the music clip on the timeline and look for Volume, Gain, or Audio Levels. A slider will appear — drag it to the left to lower the volume. Start at around 40 percent and play back a section with both your video and music. If you can still hear the dialogue clearly and the music adds texture without fighting for attention, you have the right level. If the music drowns out speech, lower it more. If it is barely noticeable, raise it slightly.
Some software shows a volume graph as a line running through the audio clip. You can click on that line and drag it up or down to change volume at specific moments — useful if your music needs to be quieter during dialogue and louder during silent scenes. This is called keyframing, and it takes practice, but the basic idea is straightforward: click the line where you want the change, then drag up or down.
Fading music in and out so it does not cut off abruptly
A music file that starts at full volume the when ready the video begins sounds jarring. A fade-in — where the music gradually gets louder over the first second or two — sounds intentional and professional. The same is true at the end: fade the music out instead of letting it stop suddenly.
In DaVinci Resolve, right-click the music clip and select Fade In or Fade Out. A small curve will appear at the start or end of the clip showing the fade. In iMovie, click the music clip, then look for the Fade In and Fade Out sliders in the inspector panel on the right. Drag each slider to set how long the fade lasts — usually one to two seconds is enough.
On phone apps like CapCut, tap the music clip, then look for Fade In or Fade Out in the menu that appears. Set it to one or two seconds. Play back the start and end of your video to confirm the fade sounds smooth and not too slow or too fast.
Trimming music to match your video length
Your music file might be three minutes long, but your video might be only 45 seconds. You need to trim the music so it ends when your video ends, or it will keep playing after the video stops.
On the timeline, find the end of your music clip. A small handle or line marks the edge. Click and drag that handle to the left until the music ends at the same frame where your video ends. You can see the frame numbers as you drag, which helps you line them up exactly. If you want the music to fade out in the last second, trim it so it ends one second before the video ends, then add a fade-out effect.
If your music is shorter than your video and you want it to loop — play again from the start — most software lets you duplicate the clip and place a copy right after the first one. This works best with music that does not have a distinct beginning or end, like ambient background tracks.
Previewing your mix before you export
Before you save or export your video, play back the entire thing with both video and audio to catch problems you might have missed. Listen for moments where the music is too loud, where it cuts off awkwardly, or where it does not match the mood of the scene.
Most editing software has a play button in the preview window. Click it and watch the full video. If you hear something that needs fixing, pause, make the adjustment, and play that section again. Common fixes are lowering the music volume a bit more, extending a fade, or moving the music to start a few frames later.
If your video has multiple audio tracks — music plus dialogue plus sound effects — listen carefully to make sure you can hear all three without any one drowning out the others. This is called balancing your mix, and it is the difference between amateur and polished video.
Frequently Asked Questions
Can I use copyrighted music from YouTube or Spotify in my video?
No. Music on YouTube and Spotify is protected by copyright, and using it without permission can result in your video being taken down or claimed by the copyright holder. Use music from royalty-free sites like Pixabay, Pexels, or YouTube Audio Library instead — these offer music you can use legally in your videos.
What if my music is out of sync with my video?
Click and drag the music clip left or right on the timeline to move it earlier or later. Play back a few seconds to hear if it lines up with the moment you want. If the music needs to start exactly on a beat or a scene change, zoom in on the timeline so you can see individual frames and position it more precisely.
How do I make music fade out gradually at the end instead of stopping suddenly?
Right-click the music clip and select Fade Out, or find the fade controls in your software's inspector panel. Set the fade duration to one or two seconds, then play back the end of your video to confirm it sounds smooth. The music will gradually get quieter instead of cutting off.
Can I add more than one music track to the same video?
Yes. Most editing software lets you add multiple audio tracks. Drag a second music file onto a different audio track below the first one, adjust its volume, and trim it to the length you need. You can layer background music with sound effects or multiple songs that play at different times in your video.
What volume level should background music be at?
Start at 30 to 50 percent of full volume, then adjust based on what you hear. If dialogue or narration is present, the music should be quiet enough that you can hear every word clearly. If there is no dialogue, you can raise the music to 60 to 70 percent. The key is to listen to a playback and adjust until it sounds right to you.