Build a multitrack voiceover for a remote interview

You have a remote interview recording and a separate voiceover, but joining them into one clean piece can be tricky. If everything sits in one audio file, a small edit can disrupt the rest of the mix.

Use separate tracks to keep the interview, narration, and optional music organized. The Audio Editor runs in your browser and can arrange files on tracks, trim clips, add fades, and export a WAV or MP3.

Build the voiceover

1. Open the Audio Editor and load your interview recording and narration files. Add an intro or music file only if you plan to use one. Keep an unchanged copy of the original recordings in a separate folder.
2. Put the interview recording on one track and the narration on another. If you have several narration takes, keep them separate while you decide which parts to use. Place optional music on its own track.
3. Listen to the interview and find the points where the narration belongs. Move each narration clip to the matching time on the timeline. If the narration is meant to explain a response, try placing it between spoken sections instead of over the interviewee’s words.
4. Trim unwanted silence, false starts, and repeated lines from the clips. The Audio Editor can split audio at silent sections, but listen to each split before removing anything. A quiet breath or the start of a word can be mistaken for silence.
5. Add fades where a clip starts or ends abruptly. Listen through the beginning, each transition, and the ending, then export a WAV for further editing or an MP3 for a smaller file that is easy to share.

For a step-by-step guide to joining several recordings, see How to join several audio clips into one file. For a voiceover, keep the interview and narration on separate tracks even if you plan to export one finished mix.

Choose how the tracks should work

Keep the interview speech clear

If your voiceover introduces or explains an answer, place it before or after the interviewee speaks. Two voices playing at once can be hard to understand, especially on phone speakers. If you need narration over an answer, keep that section short and check that both voices remain understandable in the exported file.

Add music only where it helps

Music can make an opening or transition feel intentional, but it competes with speech. Try using it in an intro or outro first. If you want it under a voice, use a quiet music source and listen on headphones and ordinary speakers. If the music masks words, choose a quieter source or leave it out.

Choose an export for the next step

WAV is a good choice when someone will edit the mix further or when you want an uncompressed file. MP3 is smaller and convenient for review or sharing. Exporting to MP3 reduces file size, but it also compresses the audio. Keep the separate source files if you may need to revise the edit later.

How to fix a rough mix

1. Remove extra silence. Trim pauses at the start and end of a clip, but leave a little room before speech so the edit does not sound rushed. Check any automatic silence splits before deleting sections.
2. Repair abrupt cuts. Add a short fade at a cut that clicks or feels sudden. If the cut removes part of a word, undo it and move the edit point until the full word is intact.
3. Separate voices that overlap. Move narration to a gap between interview answers, or shorten it to fit. If both voices must play together, listen carefully at a normal speaking volume. If words are difficult to follow, rearrange the clips rather than relying on a listener to guess.
4. Check levels before adding music. If one source is much louder than the others, first identify which file is causing the imbalance. Use a quieter music file or a more evenly recorded narration take. Do not assume that placing a file on a separate track automatically makes it quieter.
5. Export a short test. If the full mix is long, export a short section with a transition and listen to it before finishing the whole edit. If the result sounds different from the timeline, check the clip positions and export format, then export again.

Why separate tracks help

A track is a lane for audio, while a clip is an individual piece of sound placed in that lane. Keeping the interview, narration, and music apart makes it easier to move or trim one part without cutting the others. It also gives you a clearer view of where sounds overlap and where there are gaps.

Keep the original interview recording unchanged. If a client asks for a different opening, a shorter answer, or no music, you can return to the source files and make a new edit instead of rebuilding the whole mix from a single flattened recording.

The Audio Editor works in your browser, and the audio files you open and export stay on your device.