Doepfer

Hello. I am very interested about the possibilities of the A-190-5 Polyphonic Midi-to-CV/Gate Interface. Does anybody knows if four oscillators controlled by one Midi channel, could be connected to a A-138 B mixer module and this output connected to a single filter and ADSR envelope to make a complete polyphonic system? Or would I need a filter and adsr and vca per voice?

Thanks,
Sidney.