Extending 4K & HDR with Jason Dustal

6/22/2018

Are high bandwidth signals over HDMI causing you headaches? In this educational webinar from AVPro Edge, Jason talks about HDMI cables, 18Gbps signals, system limitations, and how our products help you overcome these A/V hurdles. Take a listen and if you have questions or would like more info, give us a call at 605.274.6055

2 Comments

Tom Rupe

10/8/2020 11:06:50 am

Hi Jason, been watching your videos on YouTube trying to understand bandwidth, download speeds, Gbps, Mbps. I hope you don't mind if I ask a couple of questions.

In one video you discussed data rates for various 4K videos, for example 4K, 60, 4:2:0 requires 11.14Gbps. If Cat5/6/7 are limited 10.2Gbps then they are not able to stream this video using these cables with extenders?

Another thing I'm confused about is the 4K data rate of 11.14Gbps and how it relates to Internet download speeds. If Someone has a 150Mbps internet down speed and 1000 megabits equal 1 gigabit, how can a 150Mbps internet ever stream a 4K video requiring 11.14Gbps? I know I'm missing something, just don't know what.

Thanks for any clarity. Tom.

Jason Dustal link

10/13/2020 10:58:05 am

Hi Tom,

Thanks so much for checking out the videos and for your question!

This one actually comes up quite a bit. There are really 2 things that you need to know to understand what is going on here.

Firstly, your download speed and the HDMI speeds are not directly related. Download speed is the maximum amount of data that you can download every second. HDMI speed relates to how much data is traveling over the HDMI cable to give you Audio and Video from a source. What is important to see here are the streaming speeds. For example, a common movie in 4k HDR will stream at around 20 Mbps while the same movie on disc would give you maybe double or even triple the data. This gives you a more detailed image with less artifacts and much better audio fidelity.

The reason we can watch these high bandwidth streams at 20Mbps is due to compression. When the file is compressed you will lose subtle details in the image and the audio is not nearly as dynamic.

Streaming performance has gotten quite good, but for the very best experience we are still big advocates for physical media.

I hope this helps! Feel free to respond if you have additional questions!

Extending 4K & HDR with Jason Dustal

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