Freeverb .set parameters

1

The Freeverb does not respond to Synth.set parameters
The parameters can only be executed one upon launch
Is this normal ?

2

works over here…

a = {FreeVerb.ar(Impulse.ar(3), \mix.kr(1), \room.kr(1))}.play
a.set(\room, 0)
3

Yeah I must have been doing something wrong
Now it works