Categories

Audio/video routing switcher

Posted on Wednesday, July 24th, 2013 in DIY by DP

thumpnail_avs50

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.

This entry was posted on Wednesday, July 24th, 2013 at 7:00 pm and is filed under DIY. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “Audio/video routing switcher”

  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.

Leave a Reply

Notify me of followup comments via e-mail. You can also subscribe without commenting.

Recent Comments

  • Geert Jordaens: I'm not sure what kind of licensing I have to add since it is a fairly straight forward implementation of the adaptive Huffman Decoding. For...
  • erich: For anyone interested, I've added some c++ code for adaptive huffman decoding in the git repository.
  • Sjaak: I would add some more protection in the used trigger file (on the serverpilot site) then not using a standard name :) hopefully they use...
  • Pete Castagna: My friend Charlie who worked in synthesizers at a DOD type of place made a modification to this avalanche pulse generator that allowed him to...
  • Sam Catchpole: Yes please :D