Audio/video routing switcher

in DIY by DP | 1 comment

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Benoit Frigon  posted his audio/video routing switcher project:

It’s an audio/video (composite) routing switcher, i used it to switch between video sources on my tv. The tv I had back then only had 1 video input. It consist of a 8×8 video crosspoint (MAX4456) and a 16×16 analog crosspoint (AD8113) controlled by a small microcontroller (pic18f452). It allowed me to distribute an audio/video signal from 5 different sources to 5 outputs by selecting it on the panel. I could split the audio from one input channel and take the video from another one if I wanted. It has 8 presets I can program to quickly recall channels assignation. It’s still working and I still use it today, but now, it’s used for routing audio only.

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Comments

  1. Alan says:

    Many people with old, functional amps have to consider throwing them out – just because of digital video. HDMI in, out, S/PDIF (optical & coax format)… it all adds up.
    Old amps used to have phono in, and cassette “through” for mastering your cassette mixes. If you’re lucky, you have 1 capable of 5.1 surround sound.
    An alternative to buying a whole new amp is a “selector” or, as called here, a router. This one only handles analog video, and according to the article is currently only handling audio, but he goes on to mention a HDMI sequel in the works. Throw in a S/PDIF split and you could have something big.

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