Audio Channel Converter

Use this to shrink podcast and interview archives by going mono, or to up-convert mono voice-overs so pro editing software accepts them.

Version 0.1.46 is permanently free with all 76 tools and modules. No usage quota, time limit, license key or subscription.

Audio Channel Converter running in BulkPro on Windows
BulkPro, running locally on Windows

What it does

Use this to shrink podcast and interview archives by going mono, or to up-convert mono voice-overs so pro editing software accepts them.

How to use it

  1. 1Drag the audio files into the list.
  2. 2Pick a Target Channel Mode: Mono or Stereo.
  3. 3Click Run.

Use cases

Shrink a podcast archive

Add the stereo podcasts, target Mono, run. Files halve in size, speech quality stays fine.

Mono-ify interview recordings

Add the stereo interviews, target Mono, run. Saves storage.

Promote mono voice-over to stereo

Add the mono files, target Stereo, run. Pro software opens them happily.

Simplify a dual-channel field recording

Add the stereo field files, target Mono, run.

Frequently asked questions

Is Audio Channel Converter free?

Yes. Version 0.1.46 is permanently free with all 76 tools and modules included. There is no usage quota or time limit, and no license key, account or subscription is required.

Local processing

Runs on your CPU/GPU. No file leaves your machine.

Batch ready

Process dozens or thousands of files in one run.

Part of BulkPro

Bundled with 76 tools across 7 modules: one install, one app.

Detailed documentation

Full UI reference, step-by-step workflows, edge cases

Every input, button, and behavior documented for advanced users.

Open documentation