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
source electro-music.com Vocoder Circuit pcb schematic Alternative link:
Vocoder Circuit Change the Sound
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Published: 2008/08/06 Tags: audio control circuits
USB Hub Circuit
First on the Net diagram of a USB Hub for your computer, this assembly is being tested this page will be updated during the tests and complete assurance of that Hub. The cost is very low since you have to get only USB connectors and quartz 6 MHz (RadioSpares) for example. See the Texas site for the availability of other components.
USB Hub TUSB2046 Circuit