audio codec rankings - Blu-ray Forum

sjmssmpsn · 02-05-2008, 03:28 AM

whats the rankings of the differant audio encodes (lossless,DD+, etc.) from best to worst. thanks

Clark Kent · 02-05-2008, 11:47 PM

Theoretically PCM, DTS-HD MA, and Dolby TrueHD(with dialnorm disengaged) are all equivalent given the same master soundtrack and are the highest fidelity possible. It gets a little messier when you start talking about the lossy codecs.

The various flavors of lossy DTS and Dolby Digital and their sound quality all depend on what bitrate the respective soundtrack is. DTS-HD HR is the best lossy codec(ignoring Dolby Digital Plus since no BD uses it) but is rarely used. Most would agree that DTS at 1509 kbps is the next best lossy soundtrack(the same as found on dvd). At the next lower level is Dolby Digital at 640 kbps and DTS at 768 kbps, which are very close to each other in sound. Next lower in quality is the lower bitrate versions of Dolby Digital like 448 kbps, which make up the bulk of modern dvds.

Slec · 02-05-2008, 11:54 PM

A pretty good read on codec differences
http://www.highdefdigest.com/news/show/1064

sjmssmpsn · 02-06-2008, 04:51 PM

thanks for the help.

johnno1986 · 03-03-2008, 06:03 AM

Does anyone know of a website that gives me this info? Maybe one with an illustration of the order of audio codecs from best to worst or vice versa? I found one the other day but now I can't remember it.

Canada · 03-03-2008, 08:04 AM

probably for me

1. Uncompressed PCM
2. DD True HD
3. DTSMA (I can only decode the core 1.5 mbps)
4. DTS
5. Dolby Digital

Slec · 03-03-2008, 12:15 PM

Quote:

Originally Posted by johnno1986

Does anyone know of a website that gives me this info? Maybe one with an illustration of the order of audio codecs from best to worst or vice versa? I found one the other day but now I can't remember it.

explanation of all codecs...
http://www.highdefdigest.com/news/show/1064

Explanation of lossy vs. lossless
http://www.highdefdigest.com/news/sh...ess_Audio/1233

cnowels · 03-03-2008, 12:22 PM

These are all great articles.

But is there a chart somewhere that shows the bitrate for the different codecs? I've got a friend who thinks Dolby Digital is the end-all of audio. These prove that he's wrong - but I really want to show him HOW wrong he is.

Slec · 03-03-2008, 12:24 PM

Quote:

Originally Posted by cnowels

These are all great articles.

But is there a chart somewhere that shows the bitrate for the different codecs? I've got a friend who thinks Dolby Digital is the end-all of audio. These prove that he's wrong - but I really want to show him HOW wrong he is.

Then pop in a movie that has Dolby Digital and PCM on it. Show him the bit rate meter. The bit rates on movies will vary based on what is involved on the track. The Dolby track will be around 448kbps (maxing out at 640kbps), A PCM track can be 7Mbps. If that doesn't do it, nothing will...

cnowels · 03-03-2008, 12:34 PM

Quote:

Originally Posted by Slec

Then pop in a movie that has Dolby Digital and PCM on it. Show him the bit rate meter. The bit rates on movies will vary based on what is involved on the track. The Dolby track will be around 448kbps (maxing out at 640kbps), A PCM track can be 7Mbps. If that doesn't do it, nothing will...

Unfortunately, my Panny BD30 doesn't have a bit rate meter. One of the few disappointments I've had with it.

Slec · 03-03-2008, 12:53 PM

hmm...If your receiver can handle the high def codecs, then pick out one with a basic/more traditional tracks, then switch to the highdef codec.

lDlisturb3d · 04-05-2010, 04:50 AM

1.Uncompressed PCM
2.DTS MA
3 Dolby True HD
4.DTS
5.Dolby digital ex
6.Dolby Digital.

02-05-2008, 03:28 AM	#1
sjmssmpsn Member Member since:Nov 2007	audio codec rankings whats the rankings of the differant audio encodes (lossless,DD+, etc.) from best to worst. thanks

03-03-2008, 06:03 AM	#5
johnno1986 Active Member Member since:Aug 2007 Location:Brisbane, Queensland, Australia Blu-ray collection:478	audio codec rankings Does anyone know of a website that gives me this info? Maybe one with an illustration of the order of audio codecs from best to worst or vice versa? I found one the other day but now I can't remember it.

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02-05-2008, 11:47 PM	#2
Clark Kent Blu-ray Prince Top contributor Member since:Oct 2007 Location:Metropolis Blu-ray reviews:2 Trading Score:184	Theoretically PCM, DTS-HD MA, and Dolby TrueHD(with dialnorm disengaged) are all equivalent given the same master soundtrack and are the highest fidelity possible. It gets a little messier when you start talking about the lossy codecs. The various flavors of lossy DTS and Dolby Digital and their sound quality all depend on what bitrate the respective soundtrack is. DTS-HD HR is the best lossy codec(ignoring Dolby Digital Plus since no BD uses it) but is rarely used. Most would agree that DTS at 1509 kbps is the next best lossy soundtrack(the same as found on dvd). At the next lower level is Dolby Digital at 640 kbps and DTS at 768 kbps, which are very close to each other in sound. Next lower in quality is the lower bitrate versions of Dolby Digital like 448 kbps, which make up the bulk of modern dvds.

02-05-2008, 11:54 PM	#3
Slec Blu-ray Samurai Top ranked HT gallery Top contributor Member since:Dec 2007 Location:Baltimore, MD Home Theater Gallery:29 Blu-ray collection:241 Blu-ray reviews: 7 Trading Score:30	A pretty good read on codec differences http://www.highdefdigest.com/news/show/1064

02-06-2008, 04:51 PM	#4
sjmssmpsn Member Member since:Nov 2007	thanks for the help.

03-03-2008, 08:04 AM	#6
Canada Blu-ray Archduke Top contributor Member since:Mar 2007 Location:Victoria, BC Home Theater Gallery:17 4K collection:305 Blu-ray collection:1201 DVD collection:37 Blu-ray reviews:42	probably for me 1. Uncompressed PCM 2. DD True HD 3. DTSMA (I can only decode the core 1.5 mbps) 4. DTS 5. Dolby Digital

03-03-2008, 12:22 PM	#8
cnowels Active Member Member since:Jan 2008 Location:Chesapeake, VA Blu-ray collection:154	These are all great articles. But is there a chart somewhere that shows the bitrate for the different codecs? I've got a friend who thinks Dolby Digital is the end-all of audio. These prove that he's wrong - but I really want to show him HOW wrong he is.

03-03-2008, 12:53 PM	#11
Slec Blu-ray Samurai Top ranked HT gallery Top contributor Member since:Dec 2007 Location:Baltimore, MD Home Theater Gallery:29 Blu-ray collection:241 Blu-ray reviews: 7 Trading Score:30	hmm...If your receiver can handle the high def codecs, then pick out one with a basic/more traditional tracks, then switch to the highdef codec.

04-05-2010, 04:50 AM	#12
lDlisturb3d Blu-ray Samurai Top ranked HT gallery Top contributor Member since:Oct 2009 Location:Norfolk, VA Criterion Collection: 33 Steelbooks: 28 Home Theater Gallery:53 4K collection:11 Blu-ray collection:464 DVD collection:12 Blu-ray reviews: 127 Trading Score:4	1.Uncompressed PCM 2.DTS MA 3 Dolby True HD 4.DTS 5.Dolby digital ex 6.Dolby Digital.

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