To add music to a video, import the video and a music file into an editor, put the music on a separate audio track, align it with the picture, adjust its level around speech, and export a new video. Open that exported file before calling the job finished. Hearing music in the editing timeline does not prove it made it into the delivery file.
Start with the video you actually need to publish. A silent product montage, a narrated lesson, and a recording of someone speaking need different music decisions. This walkthrough uses a thirty-second workshop example, with original practice files you can download and rebuild. It covers assembly and delivery; the voice and background-music mixing guide goes deeper into balancing a difficult recording.
Choose the music source and preserve the original video
Make a project folder with separate places for source video, music, narration, project files, and exports. Keep the untouched video even if its camera audio seems useless. That track may contain a useful clap for synchronization, a natural room sound, or a line you later decide to restore.
Use a music file whose usage terms fit the project. A subscription that lets you listen to a song is not the same as permission to distribute it inside your video. Record the source, track name, acquisition date, and relevant license or permission. For generated music, retain the generation record and check the service terms that apply to your intended use.
Pick a section with a suitable beginning and ending before importing it. If the video begins with an instruction, a busy drum fill can make the first words harder to follow. If it ends with a quiet demonstration, an abrupt musical stop may feel accidental. Choosing a calmer section often saves more work than trying to repair the wrong arrangement with volume automation.
Add the files to a desktop timeline
In Clipchamp, open the project, use My media and Import media to bring in your files, then place the video and audio on the timeline. Microsoft's audio-import instructions document importing files, adding audio to the timeline, and moving or trimming it. The article uses personal-account controls; work-account options can differ.
- Put the video at the start of the project and confirm its duration.
- Keep spoken audio audible while you arrange the picture. If narration is a separate file, align it before mixing music.
- Place the music below the video on its own track. Move its start to the intended beat or visual change.
- Trim the music to the project boundary. Inspect both ends at a closer timeline zoom.
- Play the whole sequence, then save the editing project before exporting.
If the imported music appears after the video instead of underneath it, move it to the intended audio position. A file in the media bin is only available to the project; it is not necessarily included in the timeline. Likewise, an audio clip beyond the final picture may extend the export with empty frames. Check the end of every track.
Do not mute all original sound automatically. For a narrated demonstration, retain the narration. For a montage with distracting camera handling noise, muting the source can be sensible. For an event clip, a little original ambience may be part of what the viewer expects. Decide explicitly which sounds remain.
Use an iPhone branch when the footage is already there
In an iMovie movie project on iPhone, use Add Media, then Audio, and choose a soundtrack or an available file source. Apple's iMovie music guide explains soundtrack selection and importing from iCloud Drive. A protected or unavailable song may not be usable, even if it appears in your library.
After inserting the audio, replay the actual section of the movie where it landed. Trim the chosen passage and listen for a musical ending. A mobile editor may automatically fit some background music to the project, but that does not guarantee the chosen words, beat, and ending work together. Check them yourself.
Keep sufficient free storage for both the editing project and the exported movie. If an export fails, confirm that the source media is still available locally or can finish downloading. Repeatedly deleting the project and starting over makes diagnosis harder. First test a short copy of the troublesome section.
Rebuild the thirty-second example
Read the mix before you press play
Our example uses a generated editorial still as the picture, a short original synthetic music composition, and Windows stock synthetic narration. It is a local assembly demonstration, not a filmed workshop or a hands-on test of Clipchamp or iMovie. The source kit contains three lossless music stems and the narration timeline.
Download the practice source kit Download the timing sheet
| Time | Purpose | Audio decision |
|---|---|---|
| 0–4 seconds | Establish the scene | Music alone before narration starts |
| 4–18.8 seconds | Explain the workshop exercise | Keep the voice clear; reduce the bed |
| 18.8–25 seconds | Hold the scene | Leave the bed low after the final phrase |
| 25–30 seconds | Leave a clean ending | Music returns, then fades at the end |
The teaching script is: “Welcome to the Cedar workshop. Today we are turning three small ideas into one finished project. Listen for the words while the music supports the scene. Keep the original files, then check the exported video.” Place the provided narration file at zero; its opening silence already places speech four seconds into the timeline.
Compare these two versions at the same playback volume. They contain the same voice and music. The first keeps a more prominent bed; the second lowers it across the narration window. These settings demonstrate a choice for these source files, not a universal percentage for every song.
Music-forward version
Voice-forward version
Listen especially to “three small ideas” and “check the exported video.” If you have to concentrate to recover a word, reduce or simplify the bed. Do not turn up the entire mix to compensate, because that raises the competing music too.
Export the movie, then inspect the delivered file
Choose an export format and dimensions accepted by the destination. Save a clearly named version such as cedar-workshop-30s-mix02.mp4. Avoid overwriting the only approved version while trying a new music balance. A project file is useful for revisions, but the recipient normally needs the rendered movie.
Open the export in a separate player. Confirm the first frame, first sound, speech entry, last sentence, and final frame. Listen once through headphones and once through the ordinary device speaker your audience may use. Also watch with sound off: essential instructions should not exist only in the soundtrack.
If there is no music, check whether its track was muted or outside the exported range. If music starts twice, look for a duplicate clip or audio already baked into the source. If the ending is too long, inspect trailing audio rather than trimming only the picture. For a set of deliverables, the file-delivery workflow helps connect filenames to their approved scripts and timing.
How QuestStudio helps
Music Lab can help you explore a background-music direction. Start with the job: a restrained instrumental bed, a clear duration target, and room for speech. Review the available model and its controls before generating. A useful source still needs timing, editing, and listening checks in your chosen video editor.
If the music must support several ad lengths, plan those versions with the short-form ad music workflow. Keep the approved master and derive each shorter cut deliberately. Adding a track is a small operation; delivering a video that feels intentional depends on the choices around it.
Frequently asked questions
Can I add music without removing the original sound?
Yes. Keep the original audio and music on separate tracks where the editor allows it, then balance them. Mute original sound only when that is an intentional decision for the video.
Why can I hear music in the editor but not in the export?
Check the exported range, muted tracks, unavailable source files, and audio settings. Open the actual exported file in another player before changing the mix.
What volume should background music use?
There is no reliable universal percentage. Establish clear speech first, lower the music until every word is understandable, and check the final export on ordinary listening devices.
Can I use a song from a streaming subscription?
A listening subscription does not by itself establish permission to distribute a song inside a video. Use music with terms or permission covering your intended publication and keep the record.
Are these example files a real editor benchmark?
No. The files were assembled locally with FFmpeg from original synthesized music, stock synthetic speech, and an AI-generated illustration. The application instructions are based on the linked official documentation.
Create a background music idea
Use Music Lab to explore an original bed, then assemble the approved audio in your video editor.
Hero: AI-generated editorial illustration. Original teaching materials and documented feature research, checked October 28, 2026. Visual guides updated October 29, 2026. Examples are labeled where synthetic or hypothetical.