DD 5.1 vs True stereo LPCM 5.1 - Blu-ray Forum

blue comet · 02-17-2009, 08:32 PM

Is there much of a difference to the ear between the above formats ? Is it worth changing receivers for the difference.. thanks in advance

jeff92k7 · 02-17-2009, 08:36 PM

I'm not sure what you mean by "True stereo LPCM 5.1."

LPCM is uncompressed digital audio and will sound better than Dolby Digital 5.1 which is compressed. If you are talking about multichannel LPCM audio delivered via HDMI cable, then yes, it will sound much better. If however you are talking about LPCM 2.0 delivered via a digital optical or coaxial connection, then you will only be getting two channels of a multichannel Blu-Ray mix and while those channels may sound better, your overall sound will be worse due to the loss of the extra channels (in my opinion).

fronn · 02-17-2009, 10:16 PM

It would depend on your ears, speakers and receiver. It's hard to answer...

You may notice a huge difference, you may not notice any appreciable difference. :/

dobyblue · 02-17-2009, 10:31 PM

Given that you already have a receiver I'd say you will notice an appreciable difference.

I had a lowly JBL 5.1 system several years ago and listening to the difference between the Dolby 5.1 and Advanced Resolution 24/48 5.1 mixes on the DualDisc release of NIN's "The Downward Spiral" showed me an immediate an apparent difference in clarity between the two.

Listening on PC speakers, etc., most likely not - listening on entry level 5.1 separate speakers and up, I think it's likely you will notice a difference.

It was the difference listening on that $200 JBL system the spurred me onto the 5.1 speaker system I currently have made up from Paradigm Reference and Monitor components.

02-17-2009, 08:32 PM	#1
blue comet Member Member since:Jun 2008	DD 5.1 vs True stereo LPCM 5.1 Is there much of a difference to the ear between the above formats ? Is it worth changing receivers for the difference.. thanks in advance

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02-17-2009, 08:36 PM	#2
jeff92k7 Active Member Member since:Dec 2008 Location:Dallas, Texas Blu-ray collection:13	I'm not sure what you mean by "True stereo LPCM 5.1." LPCM is uncompressed digital audio and will sound better than Dolby Digital 5.1 which is compressed. If you are talking about multichannel LPCM audio delivered via HDMI cable, then yes, it will sound much better. If however you are talking about LPCM 2.0 delivered via a digital optical or coaxial connection, then you will only be getting two channels of a multichannel Blu-Ray mix and while those channels may sound better, your overall sound will be worse due to the loss of the extra channels (in my opinion).

02-17-2009, 10:16 PM	#3
fronn Expert Member Member since:Sep 2007 Location:St. Paul, Minnesota Blu-ray collection:- DVD collection:- Blu-ray reviews:1	It would depend on your ears, speakers and receiver. It's hard to answer... You may notice a huge difference, you may not notice any appreciable difference. :/

02-17-2009, 10:31 PM	#4
dobyblue Super Moderator Top contributor Member since:Jul 2006 Location:Ontario, Canada Home Theater Gallery:71 4K collection:55 Blu-ray collection:655 Blu-ray reviews: 15	Given that you already have a receiver I'd say you will notice an appreciable difference. I had a lowly JBL 5.1 system several years ago and listening to the difference between the Dolby 5.1 and Advanced Resolution 24/48 5.1 mixes on the DualDisc release of NIN's "The Downward Spiral" showed me an immediate an apparent difference in clarity between the two. Listening on PC speakers, etc., most likely not - listening on entry level 5.1 separate speakers and up, I think it's likely you will notice a difference. It was the difference listening on that $200 JBL system the spurred me onto the 5.1 speaker system I currently have made up from Paradigm Reference and Monitor components.

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