Electronics Projects, Vocoder Circuit Change the Sound article
"audio control circuits, " tagged with
summarizes examples of a circuit that can change the sound effect on audio file will give more or less the idea of a device called circuit Okita vocoder clone ..
Voice coder circuit are all sources of PCBs, drawings, bill of materials .. Circuit diagram consists of three sections headphone amp section is a quality simple circuit can be used in different applications
Vocoder sample sounds
source electro-music.com Vocoder Circuit pcb schematic Alternative link: vocoder-circuit-change-the-sound.rar alternative link2 alternative link3