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About

Convert stereo audio to mono online in your browser

Fix one-sided microphone recordings, eliminate phase cancellation, or prepare audio for podcasts and telephone playback by downmixing stereo channels to mono. Processes completely client-side.

How to use Convert Stereo to Mono

  1. Choose a video or audio file.
  2. Select whether to blend both channels or isolate the left/right mic channel.
  3. Click Convert Stereo to Mono.
  4. Download your balanced mono media file.
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Frequently Asked Questions

Why would I want mono audio?
When an interviewer mic records exclusively to the left channel and leaves the right channel silent, converting to mono balances the voice in both ears of the listener.
Will this reduce file size?
Yes! Storing a single audio channel instead of two independent stereo tracks typically reduces the audio stream size by nearly half.
Accepted formats: MP4, WEBM, MOV, MKV, MPEG, WAV, OGG, WEBM, MP4