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Optical audio and video transmitter - how to make?
Х-50:
Hello! Maybe I’m asking the question incorrectly in the search engine, but I didn’t find anything about an optical sound or image transmitter. Only the simplest circuits on YouTube, some even using solar panels (!) as a sensor, transmitted sound. Tell me, are there any ready-made solutions? Specialized chips? NOT via optical cable. What is this direction called? So that you can search for something more efficiently? How difficult is it to organize a transmission channel at 100-200 m? at 500 m? A few kilometers away? Thank you very much for your help.
Brumby:
Are you looking for an AV sender/receiver?
This is a common function with a lot of commercially available products, especially at the consumer level. Search on that term and see if you can find some that offer what you want.
Most offer transmission by RF, some by cable ... but are you after an optical transmission path by,say, a laser beam? It's a little unclear to me.
If you are after something a bit more special, please let us know some specifics.
Are you after a point-to-point solution, transmit to an existing receiver, etc.
Are you working with analog and/or digital inputs/outputs.
... and so on.
Х-50:
No. It is to transmit video or audio via an OPTICAL channel - NOT via a radio channel.
tom66:
Video requires high bandwidth.
As an example is 720x576 digital video with 8-bits per channel YCbCr 4:2:0 subsampled. At 50Hz frame rate, the bit rate is 248Mbit/s with no framing or blanking.
If you make it 1920x1080 digital video (1080p) at 60Hz then you need 1.5Gbit/s with no framing or blanking.
Don't even ask about 4K120Hz...
Now, you can of course compress video. 8Mbit/s using H.264 is quite acceptable for 1080p60 video, but then you need a hardware codec/decoder on either end of the link.
You could then use that with a project like RONJA;
https://en.wikipedia.org/wiki/RONJA
themadhippy:
--- Quote ---Video requires high bandwidth.
--- End quote ---
and optical is fine t for high bandwidth signals,thats if were talking fiber optical
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