24-Bit PCM on Potter??? - Blu-ray Forum

ClaytonMG · 12-12-2007, 04:45 AM

Sorry to start another Potter thread, but I was just looking at the bitrate on the Potter films and each PCM track is at 4.6mbps. Doesn't that mean it's a 16-Bit track? I was reading the review on here and on HighDefDigest, and both places say 24-Bit.

Ascended_Saiyan · 12-12-2007, 04:49 AM

4.6Mbps PCM is 16-bit.

ClaytonMG · 12-12-2007, 04:53 AM

Quote:

Originally Posted by Ascended_Saiyan

4.6Mbps PCM is 16-bit.

Exactly, so why are these reviewers saying 24-Bit?

WickyWoo · 12-12-2007, 04:59 AM

Did you check Potter 5? I think only that one is 24

ClaytonMG · 12-12-2007, 04:59 AM

Quote:

Originally Posted by WickyWoo

Did you check Potter 5? I think only that one is 24

I've checked Potters 3, 4 and 5 and they're all 4.6mbps.

lgans316 · 12-12-2007, 07:21 AM

5 is 24-bit. 1,2,3 & 4 are 16-bit.

jd213 · 12-12-2007, 07:27 AM

Can anyone provide a screenshot of the bitrate meter for 5 to clear this up?

Deciazulado · 12-12-2007, 08:51 AM

Order of the Phoenix LPCM 5.1 Ch. 48 kHz 4.6 Mbps

lgans316 · 12-12-2007, 09:03 AM

Proof

http://bluray.highdefdigest.com/1121...hephoenix.html
https://www.blu-ray.com/movies/movie...71&show=review

jd213 · 12-12-2007, 09:11 AM

Quote:

Originally Posted by lgans316

http://bluray.highdefdigest.com/1121...hephoenix.html

Don't quote HighDefDigest as if they're the authority on specs. They've made quite a few mistakes before. They even still list 2001, A Clockwork Orange, and Eyes Wide Shut as being 24-bit as well, and those all show up as 4.6Mbps which means they're actually 16-bit.

lgans316 · 12-12-2007, 09:17 AM

How about https://www.blu-ray.com/movies/movie...71&show=review

?

jd213 · 12-12-2007, 09:26 AM

Specs from a review site can always be mistaken. Perhaps they were taken from the same source as HighDefDigest. If it does indeed say 4.6Mbps on the bitrate meter as people here have reported, then it's 16-bit. End of story.

UTVOL06 · 12-12-2007, 12:58 PM

Quote:

Originally Posted by jd213

Specs from a review site can always be mistaken. Perhaps they were taken from the same source as HighDefDigest. If it does indeed say 4.6Mbps on the bitrate meter as people here have reported, then it's 16-bit. End of story.

guess they made more room for Picture Quality.

ClaytonMG · 12-12-2007, 04:52 PM

Quote:

Originally Posted by lgans316

Proof

http://bluray.highdefdigest.com/1121...hephoenix.html
https://www.blu-ray.com/movies/movie...71&show=review

Yeah that's not proof, because they are indeed 16-Bit tracks...

As for them doing it to make more room for the picture quality, I highly doubt that since these were designed for HD DVD's anyway. So I am guessing the TrueHD track is also 16-Bit. Lets just hope the other fanboys don't get wind that the PCM track is 16 Bit and the TrueHD one is 24, otherwise they might think their's sounds better.

cregster · 12-12-2007, 06:28 PM

OK, Now I am confused. Dolby says True HD is bit for bit same as studio master. I know the studio master is NOT 16 bit. So, what's the deal? Is Dolby lying.

gand41f · 12-12-2007, 07:25 PM

Quote:

Originally Posted by cregster

OK, Now I am confused. Dolby says True HD is bit for bit same as studio master. I know the studio master is NOT 16 bit. So, what's the deal? Is Dolby lying.

It is bit for bit identical to the master used for encoding. If the studio downsampled the audio track from 24 bits to 16 bits prior to the endcoding to save space, then that's what you get on the final product.

enjoy
gandalf

12-12-2007, 04:45 AM	#1
ClaytonMG Blu-ray Samurai Member since:May 2006 Location:New Brighton, MN Home Theater Gallery:16 4K collection:839 Blu-ray collection:2379 Blu-ray reviews:2 Trading Score:1	24-Bit PCM on Potter??? Sorry to start another Potter thread, but I was just looking at the bitrate on the Potter films and each PCM track is at 4.6mbps. Doesn't that mean it's a 16-Bit track? I was reading the review on here and on HighDefDigest, and both places say 24-Bit.

12-12-2007, 09:03 AM	#9
lgans316 Blu-ray Baron Member since:Jul 2007 Location:RM16, United Kingdom Blu-ray reviews:17 Trading Score:498	Proof http://bluray.highdefdigest.com/1121...hephoenix.html https://www.blu-ray.com/movies/movie...71&show=review Last edited by lgans316; 12-12-2007 at 09:07 AM.

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12-12-2007, 04:49 AM	#2
Ascended_Saiyan Blu-ray Samurai Member since:Sep 2006 Location:Atlanta, Georgia Blu-ray collection:608 Trading Score:1	4.6Mbps PCM is 16-bit.

12-12-2007, 04:59 AM	#4
WickyWoo Blu-ray Champion Member since:May 2007 Trading Score:2	Did you check Potter 5? I think only that one is 24

12-12-2007, 07:21 AM	#6
lgans316 Blu-ray Baron Member since:Jul 2007 Location:RM16, United Kingdom Blu-ray reviews:17 Trading Score:498	5 is 24-bit. 1,2,3 & 4 are 16-bit.

12-12-2007, 07:27 AM	#7
jd213 Special Member Member since:Sep 2007 Location:less than 10 minutes from Akihabara	Can anyone provide a screenshot of the bitrate meter for 5 to clear this up?

12-12-2007, 08:51 AM	#8
Deciazulado Site Manager Top contributor Member since:Aug 2006 Location:USiberia Home Theater Gallery:6 4K collection:1160 Blu-ray collection:7047 DVD collection:4044	Order of the Phoenix LPCM 5.1 Ch. 48 kHz 4.6 Mbps

12-12-2007, 09:17 AM	#11
lgans316 Blu-ray Baron Member since:Jul 2007 Location:RM16, United Kingdom Blu-ray reviews:17 Trading Score:498	How about https://www.blu-ray.com/movies/movie...71&show=review ?

12-12-2007, 09:26 AM	#12
jd213 Special Member Member since:Sep 2007 Location:less than 10 minutes from Akihabara	Specs from a review site can always be mistaken. Perhaps they were taken from the same source as HighDefDigest. If it does indeed say 4.6Mbps on the bitrate meter as people here have reported, then it's 16-bit. End of story.

12-12-2007, 06:28 PM	#15
cregster Member Member since:Aug 2007	OK, Now I am confused. Dolby says True HD is bit for bit same as studio master. I know the studio master is NOT 16 bit. So, what's the deal? Is Dolby lying.

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