Hello fellow knowledge seekers. What originally brought me here was the search for schematics and ideas for an improved spirit box, A.K.A Frank's Box, Ghost Box, etc.. IMHO, the biggest point for skeptics to use to pick these apart, is the possibility(probability?) of catching snippets of broadcast audio, and making it mean more than it does. There is a name for this, I just don't recall it ATM. I want to eliminate that pick apart point, by REVERSING the audio output BEFORE the speaker. Thus while still providing a way for whatever to manipulate the sound, it still nearly eliminates the chance of a full recognizable piece if audio being misinterpreted as contact. My personal design is simple, an AM radio with a fast sweep tuner chip, a reverb system and an audio recorder. I want to run the radio audio to a recorder, allow a brief period of overlap and then reverse what is recorded and allow it to playback through the speakers. Then record the final outcome. I welcome any thoughts or ideas and hope to actually build something soon.