Hi,
to modify the first audio channel on the first input in the first slot you are looking for this parameter.
params.frameslots.0.ports.16.signals.1.channels.0.gain
the second input first channel looks like this
params.frameslots.0.ports.17.signals.1.channels.0.gain
Notice that the Slot number starts at 0 and the port starts at 16 (first input). If you are looking to change audio on the output instead it would be as follows.
params.frameslots.0.ports.0.signals.1.channels.0.gain
If you want to change the audio delay on the first input in the first slot you are looking for this parameter.
params.frameslots.0.ports.16.signals.1.channels.0.delay
You need to have the an Ultrisync license enabled on the input to be able to use this parameter.
Hope this helps!
Mike
#Ultrix