I'm just getting everything together for my first build and while I'm waiting for everything to arrive, I decided to make a voice changer.  When I started researching voice changers I considered making a TKTalkie because the creator was kind enough to share his design , but I figured I'd take a crack at making my own first.  I managed to find the amp on Amazon, that I think most of you are using.  The system uses an Arduino nano with a DFPlayer mini.  You can turn on a bandpass filter to make th