Merge Audio

Upload your audio files to the Kapwing Studio, place them on the timeline, and drag each clip into the order you want them to play. Position clips back-to-back to join them into one continuous track, then preview the sequence before exporting.

You can also use the Audio Editor to shorten individual recordings and remove unwanted sections before combining them.

Yes, Kapwing supports MP3, AAC, M4A, MP4, MPEG, OGG, WAV, WebM, and FLAC, so your files do not need to start in the same format. You can add supported files to the same timeline and combine them in one project without converting each file first.

Recordings captured with different microphones, devices, or environments can vary in volume and sound quality. After combining them, adjust individual tracks and use Kapwing’s audio tools to reduce background noise and enhance spoken audio.

Explore the Audio Enhancer for more ways to clean up and edit recordings.

Yes, fades and crossfades can help smooth the transition between clips instead of switching abruptly from one recording or song to another. You can add fade-in, fade-out, or crossfade effects using the "Effects" section in the righthand sidebar. Adjust the fade speed between tracks, then preview the result before exporting.

Yes, your audio remains editable on the timeline while you work, so you can continue adjusting clip order, volume, timing, trimming, and other elements before exporting the finished project.

Merging or joining usually means placing clips one after another to create a continuous track. Layering places audio on multiple timeline tracks so sounds can play simultaneously.

Kapwing supports both workflows, so you can join interview segments sequentially while also layering music, voiceovers, or sound effects underneath them.

Yes, add audio and video to the same Kapwing project to combine music, narration, sound effects, or other audio with visual content. You can control where each file appears on the timeline and continue editing the project before exporting.

If you need to combine multiple videos, images, and audio files into one project, use Kapwing’s Merge Videos tool. If your main goal is adding a soundtrack or recording to an existing video, use Add Audio to Video.

Adjust where each audio clip starts and ends so the timing feels natural, then balance volume levels between tracks to avoid sudden changes in loudness. Trimming pauses or unwanted audio around each transition can also help separate recordings flow together more naturally.

For a more gradual transition, fade one track in or out or add a crossfade between audio tracks. Preview the transition on the timeline and adjust its timing until the change between clips fits the rest of your track.

Yes, place audio files on separate layers of the Kapwing timeline and adjust their timing so they overlap and play at the same time. You can control each track independently, including its position, duration, and volume.

Overlapping audio is useful for mixing background music with dialogue, adding ambient sound to a recording, or placing sound effects at specific moments. You can also adjust how long tracks overlap to create layered transitions instead of joining every clip back-to-back.