Streaming UHD 4K Video: Difference between revisions
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=More Information= |
=More Information= |
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==About UHD 4K video streaming== |
==About UHD 4K video streaming== |
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Many people enjoy watching movies and shows through online streaming services such as Netflix, YouTube, Amazon, Vimeo, BBC iPlayer, iTunes etc. There are lots of services to choose from and most charge a monthly subscription, usually offering their |
Many people enjoy watching movies and shows through online streaming services such as Netflix, YouTube, Amazon, Vimeo, BBC iPlayer, iTunes etc. There are lots of services to choose from and most charge a monthly subscription, usually offering their ultra high definition quality versions for a slightly higher fee. |
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[[File:4KUHD.png|300px|thumb|none]] |
[[File:4KUHD.png|300px|thumb|none]] |
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Typically, 4K UHD video has a resolution of 3840x2160 |
Typically, 4K UHD video has a resolution of 3840x2160. You will need a compatible television or player. |
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Different content providers will have their own requirements |
Different content providers will have their own requirements for hardware and software, as well as differing minimum speed requirement for your Internet connection. |
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Typically, UHD 4K video will require a minimum of 25Mbit/s, however, some providers are encoding their video streams in different ways (e.g. using |
Typically, UHD 4K video will require a minimum of 25Mbit/s, however, some providers are encoding their video streams in different ways (e.g. using variable bit rate as opposed to constant bit rate) meaning that minimum speed requirements are lower - perhaps around 17Mbit/s. In 2018, the requirement for Netflix 4K UHD was around 17Mbit/s. Other services, such as BBC, Amazon etc. may well be higher, even up to 35Mbit/s. |
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During the 2018 football World |
During the 2018 football World Cup, the [https://www.bbc.co.uk/news/technology-44308154 BBC suggested] that 40Mbit/s speed was required for their 4K streams at 50 frames per second. |
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==Congestion== |
==Congestion== |
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*Look on the Control Pages for the 'Rate' of your line: |
*Look on the Control Pages for the 'Rate' of your line: |
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**[[File:Control-pages-rate.png|500px|thumb|none|Rate is the download speed of your line]] |
**[[File:Control-pages-rate.png|500px|thumb|none|Rate is the download speed of your line]] |
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**You |
**You need the Rate to be around 25M or more (some UHD may only need around 17M or so) |
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*Check our CQM graphs on the control pages: |
*Check our CQM graphs on the control pages: |
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**Your graph should look nice |
**Your graph should look nice and clean - no red pixels indicating packet loss, no blue or bright green latency spikes. Whilst streaming you'll see the download shown. For example: |
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**[[File:Cqm-4k.png|700px|thumb|none|Streaming 4k shown on the CQM graphs]] |
**[[File:Cqm-4k.png|700px|thumb|none|Streaming 4k shown on the CQM graphs]] |
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**Our Support staff can help you understand your graph, do get in touch |
**Our Support staff can help you understand your graph, do get in touch |
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