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Hidef and audio/video bitrates
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Posted on August 23, 2007 at 05:14:49 | ||
Posts: 19522
Location: Fort Worth, TX Joined: October 25, 2000 |
I thought this post from an admittedly blu-ray advocate but with some credibility on the AVSforum might be interesting. Especially since some of the folks in this forum just might have a tiny bit of interest in audio quality for Hidef movies. I've had lingering questions concerning why HD DVD doesn't support lossless audio ? And wondered if storage capacity and audio bitrates were more the reason than studio indifference to lossless audio ? Paidgeek's opinions are not inconsistent with my own suspicions. It starts out with a Paidgeek quote: "To be very specific, what I am saying is that it is using lossless coding on all HD-DVD titles is not practical because it will compromise the picture. Not so on Blu-ray. Period." Followed later in thread by some clarification: "What I am trying to convey, (unsuccessfully so far as it generated a whole thread on one sentence) is this: At a max rate of 25 Mbps for video, HD-DVD always has some coding artifacts. At a max rate of 40 Mbps for video Blu-ray always has some coding artifacts (regardless of title). Having 60% more bandwidth for coding a difficult scene means Blu-ray can do a better job on such a scene. This has been demonstrated in months past using Paramount titles. Having said that, when you max out video bit rate on Blu-ray, you still have 8 Mbps to work with and we can put a lossless stream in there. If you have to limit the max rate of and HD-DVD to something south of 20Mbps in order to accommodate lossless audio, sometimes you will get away with it (avoiding obvious picture break-up), and sometimes you won't. This is one of the principle reasons that so few NA HD-DVD titles attempt it and why even fewer will do so for Europe." ___ Sony Pictures BD Insider |
BD-50s I reedited the post. (nt), posted on August 23, 2007 at 09:37:41 | |
Posts: 9741
Joined: September 24, 1999 |
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There you have it - the ever-popular Vast Microsoft Conspiracy(tm) strikes again! nt, posted on August 23, 2007 at 14:35:07 | |
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Lossless audio should be available on ALL HD media. nt, posted on August 23, 2007 at 14:46:11 | |
Posts: 19522
Location: Fort Worth, TX Joined: October 25, 2000 |
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And I should be rich and have beautiful ladies fawning over me [NT], posted on August 23, 2007 at 15:59:57 | |
;-) |
Business knowledge is obviously not one of your strengths, posted on August 23, 2007 at 18:10:33 | |
NTTAWWT |
Ooooh!, posted on August 23, 2007 at 19:01:31 | |
For an instant there I thought you were going to say "Unlike you with money and ladies"! |
That's not what I said - but I do agree that this conversation is going nowhere (nt), posted on August 24, 2007 at 06:07:45 | |
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This conversation is not worth continuing (nt), posted on August 24, 2007 at 12:03:25 | |
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Unbelievable, posted on August 24, 2007 at 20:27:25 | |
Jazz - you are either trolling me, or you are totally clueless. And yes, that was officially an insult. |
But would you apply the same standards to Apple?, posted on August 24, 2007 at 21:06:00 | |
You know, that they should stick to computing and not muck about with music players and phones? |