Missing "Use Custom Mix" Option

I’ve searched high and low for this, and I cannot find ANYWHERE, on how to get the “use custom mix (for example to export a 5.1 multichannel file)” option to appear on Audacity. I do have surround system built in my computer, I do have Dolby 5.1 Surround System drivers, and YET it doesn’t appear. I have LAME built in as well as the FFMPEG set-up, and the latest 3.0.0 Audacity.

I just wanted to try and separate music from dialogue on a certain scene of mine or at least TRY to do that, but I can’t even find a program that has this capability, and when I realized Audacity has surround system editing capabilities, I thought “oh maybe this might work” nope, it hasn’t, because I don’t have the option listed on Audacity.

[u]Edit > Preferences > Import Export[/u]

Did you even listen to the damned post?! I said I tried that already! It didn’t show up!

Please tell us EXACTLY what you are doing, step-by-step, and where you run into a problem. What format are you exporting to? (WAV? MP3? etc?).

Hi guys.

Using Win10 and Audacity 3.0.3 but I also am struggling to get the “Use Custom Mix” and" Surround 5.1 option to show. I installed the appropriate FFmpeg library but can’t seem to get anywhere. Can anyone help me please?

Many thanks


Audacity does not have “Surround 5.1” option. What it has is the ability to export multi-channel audio files.
Note that the number of supported channels depends on the file format.

To enable the option, enable “Use Advanced Mixing Options:” in “Preferences > Import / Export”.
See: https://manual.audacityteam.org/man/import_export_preferences.html
and https://manual.audacityteam.org/man/advanced_mixing_options.html