4K Monitors...

[Roberto Lequeux]

Thanks for those posts Most.

[Blair S. Paulsen]

Mike, you mentioned that the bit rate for HD distribution was similar to Blu-Ray and that the primary reason the Blu-Ray versions were better was tied to more sophisticated and time consuming encoding procedures. I was under the impression that the difference in bit rate was also pretty significant as distributors cram more channels into limited bandwidth.

I waited patiently for DirectTV to switch to MPEG-4 before buying in, then got a rude awakening when the majority of what came off the bird had actually been MPEG-2 encoded along the way and then re-encoded in real time to MPEG-4 creating some ugly concatenation artifacts. Yuck.

AS the delivery of content to the consumer evolves I am hoping that we see deployment of a hybrid system where you can surf available content swiftly at lower resolutions and then when you choose a "program" it can take over a significant portion of the pipe (bandwidth). Whether its RedRay or X265 or whatever, I don't think its crazy to think that a 40mbs bit rate would support nice looking 4K with 7.1 audio. As more and more computing relies on the "cloud" I think there will be plenty of impetus to offer 50mbs download speeds to a mass market. The real question, as usual, is how long will it take?

Cheers - #19

[Richard ndumu]

http://www.youtube.com/watch?v=MmsFl8TIWWc

[Josh Beadle]

http://www.youtube.com/watch?v=MmsFl8TIWWc

. . . "it's impressively large" . . . that what she said

[M Most]

Mike, you mentioned that the bit rate for HD distribution was similar to Blu-Ray and that the primary reason the Blu-Ray versions were better was tied to more sophisticated and time consuming encoding procedures. I was under the impression that the difference in bit rate was also pretty significant as distributors cram more channels into limited bandwidth.

I was referring to the bandwidth allocated for over the air HD broadcast, which is roughly 19Mb. It is, of course, true that the full bandwidth is rarely used by broadcast stations, who have shown a preference for multicasting, which is an option they were given when the bandwidth was awarded. The point I was trying to make is that even when the full bandwidth is used, the quality of the image and particularly motion rendition is inferior to that of material that utilizes programmed compression at a similar data rate (or even a lower data rate).

[Ryan Farnes]

There are so many 4K monitors (TVs) being released that we can hardly keep track. I wonder what that means to shows shot on 1080P?

Jim

In all seriousness, where on earth does a consumer of said shows buy a 4K TV or monitor?

[Stuart English]

I don't think its crazy to think that a 40mbs bit rate would support nice looking 4K with 7.1 audio.

It's not crazy at all, we are currently encoding for RED RAY at 20 Mb/s to deliver 4K cinema grade images and 7.1 audio (visually lossless v's DPX source files on a 40 ft screen) and that's only just above ATSC 19.3 Mb/s payload.

[Jose Lomeña]

Stuart 20 Mb or MB?

[Stuart English]

He he, maybe 4K content distribution will be here more quickly than anybody wish. Its time for Red Ray.

:-) All the pieces are falling into place Petr, watch this space....

[Stuart English]

Stuart 20 Mb or MB?

20 Mbit/sec Jose....