The starting point of this project is an easy-to-handle video false color device, sound reactive and also suitable for a DJ. The input signal can be a PAL/NTSC video camera or video player. As output device you can use a flatscreen monitor or a beamer. The Visualist has mainly analog circuits so the effects are in real time. You need to have some knowledge of electronic circuits, parts and soldering. Success!
Projects from Make: Magazine
Visualist, ’70s Video Effects
Sound reactive video effects device for camera or pre-recorded video material. Unique retro psychedelic color effects, straight out of the seventies!
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Steps
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Step #1:
- The block diagram of the sound board shows the selection switch between the built-in microphone and the line input. After that comes the automatic volume control. Third is the filter for bass, mid and high tones. Last are the LED drivers for the Light Dependent Resistors. They control the RGB color saturation in the output video signal.
- The second picture shows the sound circuit.
- The third picture is a photo of the sound board built on a single island board.
Conclusion
This project is a good start for further experimentation with video effects. A PDF guide of the Visualist gives a bit more information. You can download it from here.
