How do I make 2 voices in ONE audacity track sound about the same volume?

[steve]

This is probably really simple for you.

No
It's not simple for anyone.

The best you can do is to "compress" the track so that it remains at about the same level throughout. That will make the quiet voice louder when it is on its own. It will not help when both voices are speaking at the same time.

There's a plug-in here that you could try: https://wiki.audacityteam.org/wiki/Nyqu ... vel_Speech
That is a "Nyquist plug-in".
Installation instructions for Windows here: https://manual.audacityteam.org/man/ins ... st_install

(Please note that Audacity no longer officially supports Windows XP.)

[jesskang]

In my use case I think Levelator may not be the best solution but it certainly is the easiest.

[steve]

it certainly is the easiest.

Easier than the "Level Speech" plug-in? I didn't think that was possible