Wireless Audio Video Two TV's

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taylorroach

69 posts

Master Geek

#169606 19-Mar-2015 19:59

Hello,

I currently rent and want to be able to watch TV in bed. No aerial cables etc are in the bedroom and because I rent I don't want to do any wiring.

Is their any wireless options? I have heard that the Wireless AV senders are fairly useless. All my equipment: Apple TV, Blu Ray Player, Tivo & Xbox all connected to my pioneer amp via HDMI and then to my TV.

Would be cool to be able to send all of these to the room but I am mainly after the TIVO connection so it has also a component and standard AV out.

Is their anything in the market that would use WIFI to send this?

Guttered about the TV I purchased in the lounge recently a 55inch LG tv but it has no outputs only a couple of inputs.

Any ideas?

Thanks,

Taylor.

SirHumphreyAppleby

2844 posts

Uber Geek

#1263691 19-Mar-2015 21:00

Not WiFi-based, but have you considered a wireless HDMI transmitter?

You could use a matrix switch to control the input to the amp and the transmitter independently.

taylorroach

69 posts

Master Geek

#1263696 19-Mar-2015 21:25

Have you had experience with a HDMI transmitter? are they reliable?

have you got a link for these products?

thanks for the advice

richms

28168 posts

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#1263700 19-Mar-2015 21:31

The one that a friend used had compression artifacts that were really visible over text - so pushing a windows desktop to another display had huge issues with blur and fuzzy edges. It looked alright on picture based content and the already soft edges on captions and credits etc didnt freak it out as much. It also added a little bit of latency so gaming or interactive PC use over it wasnt pleasant - about the same as when game mode on a TV is disabled. - 2-3 frames I guess.

It dropped out sometimes depending on the orientation of the ends, and it didnt support ARC or CEC over the wireless HDMI link. It did HDCP at the source end. Never tested if it needed a HDCP screen on the other end but I suspect so since it was from a vaugely known brand not a china special.

Richard rich.ms

SirHumphreyAppleby

2844 posts

Uber Geek

#1263701 19-Mar-2015 21:31

taylorroach: Have you had experience with a HDMI transmitter? are they reliable?

have you got a link for these products?

thanks for the advice

Sorry, I don't have any experience with wireless products. They are quite expensive, and given nobody else would want to pay the bill to get the wireless connected to their individual televisions, I ended up taking a different route and getting a USB DVB-T transmitter to feed the signal in to the aerial wiring via a computer. Unfortunately, the capture cards I had weren't very reliable, so the whole system is shut down until I get around to finding new cards, which will probably be when Sky replaces their decoder with a HDMI-capable one, sometime in the next year or so.

richms

28168 posts

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#1263704 19-Mar-2015 21:36

How does that transmitter work for you?

I would like to see a solution with a DVB-S card, soft cam and then a DVB-T modulator because that would keep the already aweful MPEG stream from any furthur degradation. Unfortunatly with sky doing these hardware upgrades any use of third party softcams etc is probably a bit risky to be starting off with now, but will see what they do once all the old hardware has gone from service.

Richard rich.ms

taylorroach

69 posts

Master Geek

#1263705 19-Mar-2015 21:36

Okay cool, Thinking about it I wouldn't want to use it a hell of a lot and only at night so I could run a cable on the ground and pack it up during the day. But im guessing HDMI cables can't go to far?

Whats most length you can use RCA or component cables?

richms

28168 posts

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#1263706 19-Mar-2015 21:38

HDMI over cat6 would be the way to go if you are packing it up regulaly. that way when the cable is finally damaged its cheap-as to replace it. You can put long HDMI's on the boxes to get them closer to where they need to go. I tested my cheapies with 5m HDMIs at each end and a 10m cat6 and it was stable with the fridge turning on and off, whereas a 7.5m hdmi was not.

Richard rich.ms

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SirHumphreyAppleby

2844 posts

Uber Geek

#1263707 19-Mar-2015 21:38

taylorroach: Whats most length you can use RCA or component cables?

A few meters at most. I have a nice thick 10m audio cable, and the composite signal is completely unusable if you try to run video over it. Component might be okay over a longer distance, and I've used S-Video over a 15m cable with usable results. YMMV.

SirHumphreyAppleby

2844 posts

Uber Geek

#1263711 19-Mar-2015 21:47

richms: How does that transmitter work for you?

I would like to see a solution with a DVB-S card, soft cam and then a DVB-T modulator because that would keep the already aweful MPEG stream from any furthur degradation. Unfortunatly with sky doing these hardware upgrades any use of third party softcams etc is probably a bit risky to be starting off with now, but will see what they do once all the old hardware has gone from service.

The transmitter itself seems to work fine. I was capturing MPEG data from a hardware encoder and sending it via DVB-T without re-encoding. I can't seem to find my notes, so I'm going to have to work it out again, but you also need to construct the relevant tables for DVB-T compatibility and inject those periodically in to the stream.

I looked at OpenCaster, but I believe in the end I used this software or a combination of both... http://www.scara.com/~schirmer/o/mplex13818/

richms

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#1263718 19-Mar-2015 22:07

SirHumphreyAppleby:
taylorroach: Whats most length you can use RCA or component cables?

A few meters at most. I have a nice thick 10m audio cable, and the composite signal is completely unusable if you try to run video over it. Component might be okay over a longer distance, and I've used S-Video over a 15m cable with usable results. YMMV.

That would be because it was a audio cable. Video needs 75 ohm coax not barely shielded unknown impedance audio cable.

I have put component over 15 meters of solid copper cctv grade rg59 fine. 1080i. Didn't see any issues on it but it was in the days of rubbish plasma tvs that weren't 1080 so might have had some degradation I didn't see.

Richard rich.ms