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Overlay Audio

Mix two audio tracks so they play together. The result is an MP3.

How it works

  1. Upload Audio 1 and Audio 2 (MP3, WAV, M4A or OGG).
  2. Set when Audio 2 should start, and adjust each track's volume.
  3. Click Mix Audio and download the result as an MP3.

What can you use this tool for?

  • Layering background music under a voice recording
  • Adding a sound effect on top of a video's audio track
  • Mixing a narration with ambient sound
  • Combining two overlapping recordings into one

Useful details

  • Accepts MP3, WAV, M4A and OGG audio files for both inputs
  • Audio 2 can be delayed by a chosen number of seconds before it starts
  • Each track's volume can be adjusted from 0% to 200% independently
  • The mixed result is delivered as a single MP3

FAQ

Can I overlay two audio files online?

Yes — upload two files, choose when the second one starts and set each track's volume, then Vaxeho mixes them into one MP3.

Can I delay when the second track starts?

Yes — set an offset in seconds so Audio 2 starts partway through Audio 1 instead of at the same time.

Can I control the volume of each track separately?

Yes — Audio 1 and Audio 2 each have their own volume setting from 0% to 200%.

Which audio formats are supported?

You can upload MP3, WAV, M4A or OGG files. The mixed result is delivered as MP3.

Do I need to install software?

No — mixing happens on the server. You only need a browser.