Mono to Stereo Converter

Convert mono audio files to stereo

What is Mono to Stereo Converter?

This tool converts single-channel mono audio recordings into dual-channel stereo files. It supports multiple stereo conversion modes including simple duplication, stereo widening, and panning control, so your mono recordings sound fuller and more spatial.

How to use

  1. Upload a mono audio file in WAV, MP3, OGG, or FLAC format.
  2. Choose a stereo mode: duplicate (same audio on both channels), widen (add subtle delay and EQ for spatial effect), or custom pan.
  3. Preview the stereo output, adjust settings if needed, then download the converted file as WAV.

Result

A podcaster uploads a mono voice recording and uses the widen mode to add subtle spatial depth, making the audio sound more natural through headphones.

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