I recently purchased my first HD tv and I'm really confused regarding HD. How come my sky+ box can handle HD broadcasts perfectly when they are basically transmitted through the air and yet when I try to stream an HD video either through the net or locally it buffers. I don't understand how an HD signal can be sent through the air flawlessly but when sent via a wire it struggles!!!!!
Satellites = Crazy Powerful & Heavily Directional & Well Optimised Internet / Local networking = A big mess
also sky is 720p or 1080i as opposed to 1080p which basically halves the bandwidth straight off the bat.
HD from Satellite/Cable/Terrestrial source usually maxes out at 6Mbps. Uncompressed BR stream is around 25-30Mbps, Samsung Oceanic video is 40mbps.
You should be able to stream a 1080p MKV with 5.1 sound happily over a wired 100mbps LAN, so if you're having issues it'll likely be down to either your hardware or network... What hardware are you using? Computer/Laptop/Tablet? Wired network/Wireless/Homeplugs?
200mbps netgear av homeplugs and I have an 8gig line that maxes out around 650kbps. The netgear has an led on it that changes colour depending on the quality of the connection to the other homeplug and it's green which means it's running at the higher end of it's capability. Unfortunately I don't sem to be able to adjust the play quality of things like you tube on my panasonic smart tv so eeverything gets played at HD levels and buffers, you don't even seem to be able to pause and let it download a little before you start playing the video.
That should be enough for Youtube 720p but 1080 will be a struggle. If your TV doesn't auto choose the correct resolution (or you cant find a setting) for your net speed then there is nothing you can do about it. Re:Local Playback You may want to speed test your homeplugs. Re:Satellite vs Internet The satellite is using a totally different protocol where everyone watches the same thing at the same time. Multiple devices can listen in on the same airwaves, so it is much more efficient. Only 1 device will be receiving an internet stream, so everyone that wants to watch has a different stream. Multicasting could theoretically help with this, but you would lose the On Demand functionality and AFAIK beyond your own network broadcast packets will be dropped. Someone please tell me if I'm talking ****.
Makes a lot of sense to me. How would I test the speeds of my homeplugs?, plug my laptop into the adaptor the tv is plugged into and run speedtest.net? or can I ping the adaptor somehow.
Get yourself a 1080p recording on your pc then share it and play it on your tv. It will show you if you have an internal network or external internet speed problem.
Me or Crapbag? You wouldn't believe I had my CCNA would you. Tired, hungover me doesn't like explaining.
Lol just noticed I had been corrected on the 8gig line, lol, if I had one of those I wouldn't have an issue . Theres a couple of HD sample videos that come with windows and they stream fine to my tv so it must be my net connection. What progs do people use to download you tube video's, I'd like to try a couple more vids just to see. I used to used keepvid but that keeps asking me to use their downloader.
Unfortunately the apps on the TV don't have the same buffering ability as the PC so will depend a lot more on the quality of your connection.
Yeh I had a feeling that would be the case, shame you can't stick a memory stick in the usb slot to give it somewhere to buffer the video too.
You can often do that to add PVR abilities to yur TV (depending on model) if you have not done it, works well.
Hooked up my raspberry PI (running XBMC) to my router and an external hdd and I'm now streaming to my tele which is cool. Not HD though as I don't have any HD videos yet. In an unrelated issue my tv keeps having noticable changes in contrast on dark scenes even though I don't have dynamic on, might put up a post about it unless anyone has any ideas. Maybe this is normal on flat panel tv's?
