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HDMI over IP with low latency?

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Sean Schult:
As above. Looking to do a matrix switch (~12 in, ~20 out) by VLAN tagging HDMI over IP. The hangup is that this will be used for gaming, so latency is an issue. Looking <50ms ideally but not more than 100ms for sure or the games will be unplayable. There's tons of Chinese brand devices on Amazon but most of them do not spec a latency and based on the information I can find, it'd be around 150ms for the better ones and around 500ms for the worse ones. But they don't seem to be very consistent, even within the same manufacturer. Goes with the territory I guess. At least they're affordable though, less than $100 per unit. I've also found the Just-Add-Power brand which seems to be exactly what I'm looking for but I fear they will be much more expensive. Needing ~32 units will add up quickly to an impossible number. Nobody publishes prices for them despite rave reviews everywhere. Don't understand why they don't publish at least the MSRP and let us infer what the street price might be.

Anybody know how much the JAP units cost? Any dealers here willing to PM me an idea what I'm in for? Or anyone have experience with a different model that does what I need? Today's needs are 1080p60 but would be nice to future-proof with 4K support if possible. Thanks in advance!

Taylor Hall:
HDBaseT may be your saving grace here, it's a fairly new standard but works quite well with incredibly low latency (pretty sure it's in the microsecond rather than millisecond) in pretty much any resolution up to 4k (though I think the framerate takes a bit of a hit).

Most matrices will come with the HDBaseT baluns, though I don't know of one off-hand that will support the arrangement of I/O that you want, the largest I've seen is a 16x16, but that doesn't mean they don't exist. A lot of mid/high tier models are modular so they can probably be slaved to one another to increase I/O count without resorting to getting a single unit with a price with an extra digit or two in front of the comma...

Caleb Dueck:
Do you need to change the quantities of I/O, and span more than a room or two?  If so, video over IP (SVSI is great) is perfect.  Altona and many others also make options above the cheap Far East brands. 

If it's more simple - HDbaseT is more what you need. 

Cost will be more than a couple hundred per end point though.  HDbaseT matrices or network switches for IP alone are around that. 

Sent from my VS980 4G using Tapatalk

Tom Bourke:

--- Quote ---Looking to do a matrix switch (~12 in, ~20 out) by VLAN tagging HDMI over IP
--- End quote ---
The "by VLAN tagging" part has me wondering what your trying to do.  It reads to me your trying to do the matrix switch at the network level.  I doubt that will work, or if it does it will be unstable.

What is the over all goal?  Switching computers to stations? at what distances?

Sean Schult:
Thanks guys. Here's the clarifications requested.

I am not considering HDbaseT because the required matrix size would be prohibitively expensive. If somebody can point me to a 12x20 matrix for a couple grand, I'd reconsider that, but I don't expect that to exist.

This spans two floors of a venue and several rooms. All cable runs within 300ft but most more than 100ft. Flexibility is a goal as the owner may want to add/move/change sources and displays. Running cat6 is a lot easier than running HDMI.

Yes I am trying to do the matrix switch at the network level. I've done it years ago, and there are several products out there for this purpose. It worked well for me on a Cisco Catalyst 3650, and I've read that it works well on the Cisco SG300/SG500 series as well which is what I would spec.

Overall goal is to implement a flexible matrix switch which can present any source to any location from a central control panel. I have a lot of options for the control so less worried about that. Mostly worried about finding HDMI over IP adapters which have low latency and are reasonably affordable. The cheap ones are less than $100 each. I suspect the latency on these would make them unusable for gaming. The JAP ones I cannot find a price for but suspect them to be $500+ however advertise a latency within my spec. Looking for something in the middle or a deal on JAP stuff.

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