Sending a simple sinus, the output results in a weird subdivided waveform. See image.
Using a SupperCollider SynthDef with:
var sin = SinOsc.ar(0.5).dup * 0.5;
var in1 = sin.belaScope(0);
AnalogOut.ar(0, in1); // send to Analog Output 0
AnalogIn.ar(2).belaScope(2); // display Analog Output 0 (patch physically out0->in2)
Configured with:
SC_AudioDriver: sample rate = 44100.000000, driver's block size = 16
(4) analog input and (4) analog output channels, (16) digital channels, and (0) multiplexer channels.