Will a stereo file already work?
If the source already has 1–2 channels, the tool stops and says so. There is nothing to fold.
Convert 5.1 surround to stereo
Fold 5.1 / 7.1 home-theater tracks into a stereo file phones and laptops can play. DTS and Dolby Digital included. The file stays on your device.
Frequently asked questions
Does 7.1 work too?
Yes. Any track with 3 or more channels is treated as surround.
Is this a cinema-grade downmix?
It is a standard channel fold, not a supervised re-mix. Fine for playback, not a substitute for a re-recording mixer.
Do you upload the file?
No. Decode and encode stay in the browser.
Which output should I pick?
AAC for phones, MP3 if you need every player, WAV if you will edit again.
Can I keep 5.1 and just change the codec?
Use the DTS or AC-3 converters if you only need a different format, not a stereo fold.