how to turn off custom user voices

[jryan15]

so yesterday i trained google to recognize my voice... this morning my wife could use assistant because it didn't recognize her voice. she went ahead and trained her voice only to find that now some of the apps that i setup were not linked to her anymore. i can see that this will be a pia especially when we have to setup things like "our groceries" separately for my wife and kids.

at this point, i just want to go back to how it was with only me setup and no custom voice tracking.

can someone let me know how to reach the parameter to turn that off?

thanks!