All possible. To employ Patterns directly, you could do something like this:
(
SynthDef(\dcSetter, { |out, val|
Out.ar(out, K2A.ar(val))
}).add;
)
(
x = Pmono(\dcSetter,
\dur, 0.2,
\val, Pwhite(0.0, 0.05),
\out, 2 // suppose this is your out to analog device
).play
)
x.stop