DBraun
commented
2 years ago The add processor is meant for stereo inputs, but I think your first input isn't stereo. I think if you did inst1.get_num_output_channels() you would get 24. The remaining 4 instruments are probably 2 each, so that makes a total of 32.
You could try
# 0 inputs and 2 outputs
if inst1.can_set_bus(0, 2):
inst1.set_bus(0, 2)
print('changed bus!')Then build the graph and your code might work.
Otherwise, you can use a Faust processor to prune the channels of any processor. See this example: https://faustide.grame.fr/?autorun=1&voices=0&name=untitled2&inline=aW1wb3J0KCJzdGRmYXVzdC5saWIiKTsNCg0KcHJvY2VzcyA9IHNpLmJ1cygyNCkgPDogYmEuc2VsZWN0b3IoMCwgMjQpLCBiYS5zZWxlY3RvcigxLCAyNCk7
inst1 = engine.make_plugin_processor(n1, 'xxx')
...
inst5 = engine.make_plugin_processor(n5, 'xxx')
inst1_stereo = engine.make_faust_processor("faust")
C = inst1.get_num_output_channels()
# take the first 2 channels of C channels
inst1_stereo.set_dsp_string(f"process = si.bus({C}) <: ba.selector(0, {C}), ba.selector(1, {C});")
mix = engine.make_add_processor('mix', [1, 1, 1, 1, 1])
engine.load_graph([
(inst1, []),
(inst1_stereo , [inst1.get_name()]),
(inst2, []),
(inst3, []),
(inst4, []),
(inst5, []),
(mix, [inst1_stereo.get_name(), inst2.get_name(), ... inst5.get_name()])
]
engine.render(time)
w = engine.get_audio()
Centauria
I have code below:
it gives me warning below:
what confuses me is that I have not connected any
Gunshotplugin in the code. And the result audio contains only first track I've added.I searched for the doc but only got the signature of the
make_add_processor. So did I miss anything?