I know it sounds a little bit weird, but I was wondering is there any way to do so? I mean activate adc~ with conditions, just don't let it directly activated.
I have searched through some documentation and google, but nothing really useful.

if you do this ? adconoff.pd

@gopal Yeah agree, struggling out at last

@auaa If [adc~] is in a subpatch you can also use [switch~] to turn the subpatch on and off.