Infanem Second Voice

[andNand]

Hey there, I recently stumbled upon this GitHub-repo reverse engineering the Infanem Second Voice. Seeing as schematics (or any information) from Infanem are scarce, maybe someone can have a go at it? I shot Jonas a mail and he was fine with me posting his reverse engineered schematic:


He also sent me a link to this FSB thread, the PCB the schematic is based on can be found there.