-
Join the MyBroadband community
South Africa’s biggest forum. Discuss, discover, and connect with thousands of members.
-
Question of the Day: What's the most interesting small town you've visited in South Africa?
HDMI over Ethernet
- Thread starter Ray7905
- Start date
bin3
Senior Member
- Joined
- Jun 22, 2005
- Messages
- 976
- Reaction score
- 15
Fairly vague question ...
In general, it's digital. Quality going in is quality going out. Sound is included in the HDMI spec.
But, then; you get converters and then you get converters ...
(Keep in mind bandwith: pushing 2k/4k through crappy copper leads to tears. High end usually go fiber)
In general, it's digital. Quality going in is quality going out. Sound is included in the HDMI spec.
But, then; you get converters and then you get converters ...
(Keep in mind bandwith: pushing 2k/4k through crappy copper leads to tears. High end usually go fiber)
Would be a separate cable between hdmi extenders we used cat5e and works perfectly..
Barbarian Conan
Executive Member
Yeah, as I understand it, it's not really doing any conversion allowing it to be sent over the network. It just enables the signal to be sent via ethernet cable, from one extender to another. Not through a switch.
How about HDMI over human*?
https://www.youtube.com/watch?v=TZXxr6BbACo
*only for very short distances
Exactly what I want to do
bin3
Senior Member
- Joined
- Jun 22, 2005
- Messages
- 976
- Reaction score
- 15
Ok.
So there are a few use cases here.
One is where you take a raw HDMI signal and you extend that to a device. Best quality, raw signal, usually not via a switch. Basically what you are doing is plugging in a very long HDMI cable. HDMI gets difficult to transfer longer than about 20m. For difficult see expensive.
Second is where you encode the source and either multi cast or point to point via a network. This is basically IPTV. Works well if you get it right. Sometimes is a major pain to get right. Especially multi cast you need a fairly strong network infrastructure. The source is encoded and then broadcast. The receiver needs to understand the source. Think Plex server and client
Depends what you want to do ...
So there are a few use cases here.
One is where you take a raw HDMI signal and you extend that to a device. Best quality, raw signal, usually not via a switch. Basically what you are doing is plugging in a very long HDMI cable. HDMI gets difficult to transfer longer than about 20m. For difficult see expensive.
Second is where you encode the source and either multi cast or point to point via a network. This is basically IPTV. Works well if you get it right. Sometimes is a major pain to get right. Especially multi cast you need a fairly strong network infrastructure. The source is encoded and then broadcast. The receiver needs to understand the source. Think Plex server and client
Depends what you want to do ...
Last edited:
HDMI is uncompressed video and audio, even for 10G ethernet you'll quickly run out of bandwidth.
The bandwidth of HDMI is far beyond Gigabit ethernet, so the reality check is that it is either forcing lower quality, compressing (>transcoding) or dropping data.
Reading over it, the more expensive extenders are point to point and use 10G. They also only support 4:2:0 colour coding at 60Hz 4K or 4:4:4 @ 30Hz
But if you are aiming to deliver it over Gigabit ethernet, the performance will be on par with the bandwidth.
The bandwidth of HDMI is far beyond Gigabit ethernet, so the reality check is that it is either forcing lower quality, compressing (>transcoding) or dropping data.
Reading over it, the more expensive extenders are point to point and use 10G. They also only support 4:2:0 colour coding at 60Hz 4K or 4:4:4 @ 30Hz
But if you are aiming to deliver it over Gigabit ethernet, the performance will be on par with the bandwidth.
gfmalan
Expert Member
I use Kramer for this and it “just work”.
I also use Kramer matrix 4x4, don’t know how the noname brands work.
I also use Kramer matrix 4x4, don’t know how the noname brands work.