OK. Here we go.
https://forum.audacityteam.org/t/help-making-awesome-sound-effects/30995/1
That topic contains the before and after sound clips of the work I did for that poster. Use that voice (I know we tell people not to use MP3 for anything) and Generate > Pink Noise for the other side. Use the numbers I posted for you.
It should look like the illustration just before you apply the effect. It should sound close to RobotVoice.mp3 when you get done. Let us know how it works.
It’s possible you ran out of memory or hard drive space and everything else is working just fine.
Koz