R.I.P. Uncompressed PCM (2006-2008)

[cajmoyper]

I'm the first to admit that it's incredibly difficult, nearly impossible, to tell the difference between TrueHD, DTS HD MA, and uncompressed PCM, but for some reason, I always felt better listening to uncompressed audio. There was no worrying about compression or Dial Norm as with TrueHD, this way, the only way to grade an audio track was by the mix of the film's sound mixers and editors. There was something to be said about Blu-ray's ability to put the whole studio master on it's 50 gig's. But now with Sony's virtual completion of PCM to TrueHD transition, and BV/ Disney starting (Enchanted, National Treasure 2) starting to move from PCM to TrueHD, I honestly think by the end of the year, uncompressed PCM will be no more. Farewell, my friend.

[Marcusarilius]

Could be. Who but The Shadow knows for sure. For some reason, I find that DTS HDMA tracks "seem" more dynamic on a consistant basis, but there are a couple DD True HDMA tracks that are equally as dynamic.

[Clark Kent]

I would have been happy with PCM tracks forever, but the studios are worrying about bandwidth and capacity concerns in the future when they load up every BD with all these Profile 1.1 and 2.0 extras. I bet the smaller independent studios continue to use PCM for a little longer.

[Heart&Soul]

I don't see why PCM should limit what they put on the disc. Get the picture and audio at its best and then put what you can to fill the disc.

[saprano]

I prefer PCM over DTS-HD or TruHD, it sounds more compleat to me, Im sure there all the same but TruHD has some volume issue's. it lower than PCM, they need to start adding a DB boost or something, DTS does it

I hope studios dont get rid of PCM, its the most compleat,its not compressed, its untouched, so please keep on using it.

[buckshot]

if no lpcm than dts hd should be the standard. i don't think they should make room for crappy gimmicky extras, they should make the pq as good as they can. every single bit of bandwith not for audio should go to video.

[Canada]

If Uncompressed PCM does go the way of the Dodo which I belive it will, I hope DTS MA becomes the standard.

It is wierd because I was watching the Golden Compass and the bit rate got had an average bitrate (5.4mbps). I thought the reason to us DTS-MA was because it uses up less space than Uncompressed PCM ?

[saprano]

Was it variable? it gets high only when needed, like some loud actions scenes will get up to 8mbps. and in quiet scenes it stays low.

[Sith]

as long as a movie comes out with one of the 3 i'm happy....but uncompressed disney soundtracks are super nice...

[saprano]

well there still are disney movie's coming out with PCM thank god, and lionsgate the eye has a 7.1 PCM soundstack https://www.blu-ray.com/movies/movies.php?id=797

I think studios will still use it.

[Whytewash]

lionsgate uses PCM all the time. i dont think it will go anywhere for a while

[MarekM]

Originally Posted by Canada

If Uncompressed PCM does go the way of the Dodo which I belive it will, I hope DTS MA becomes the standard.

It is wierd because I was watching the Golden Compass and the bit rate got had an average bitrate (5.4mbps). I thought the reason to us DTS-MA was because it uses up less space than Uncompressed PCM ?

well Golden Compass is 7.1, that's why bitrate is bigger...

DTS-HD Master Audio 7.1 6208Kbps (48kHz/24-bit)
DTS-HD Master Audio 5.1 4109Kbps (48kHz/24-bit)
DTS-HD Master Audio 5.1 2533Kbps (48kHz/16-bit) from avs audio thread "

with PCM you have 4.6mbps for 16bit, or 6.9 mbps for 24bit on 5.1
with PCM 7.1 you have 6.144 mbps for 16bit, and I don't know number for 24bit 7.1

Marek

[aygie]

Originally Posted by Marcusarilius

Could be. Who but The Shadow knows for sure. For some reason, I find that DTS HDMA tracks "seem" more dynamic on a consistant basis, but there are a couple DD True HDMA tracks that are equally as dynamic.

Why was Marcusarilius banned????

[saprano]

Thats what i want to know

[aygie]

Originally Posted by saprano

Thats what i want to know

Dude have you still got your post count being displayed? How weird?

[Baseball3]

Originally Posted by Heart&Soul

I don't see why PCM should limit what they put on the disc. Get the picture and audio at its best and then put what you can to fill the disc.

to much of a use of common sense. I am with you 100 percent!

[dobyblue]

Originally Posted by MarekM

with PCM you have 4.6mbps for 16bit, or 6.9 mbps for 24bit on 5.1
with PCM 7.1 you have 6.144 mbps for 16bit, and I don't know number for 24bit 7.1
Marek

24 x 48 x 8 = 9.216 Mbps (7.1 24/48 PCM)
24 x 96 x 8 = 18.432 Mbps (7.1 24/96 PCM)
24 x 192 x 6 = 27.648 Mbps (5.1 24/192 PCM = Blu-ray maximum audio bitrate)

[amason]

I would rather have a full 50GB dics with just the movie that has the best video quality and audio quality than have not the best with special feature.

[akbungle]

Originally Posted by Whytewash

lionsgate uses PCM all the time. i dont think it will go anywhere for a while

Actually Lionsgate is using DTS HD Master Audio more and more.(Which is fine by me)
IMHO PCM=DTS MA > DD True HD (slightly)

[Yeha-Noha]

Well let's look at the brighter side, there's always the chance that DD and DTS might get hit with a patent infringement lawsuits!