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5.1 analog vs optical

bryy
03-27-2006, 09:49 PM
I was wondering for those of you who have tried both 5.1 multi channel analog vs optical/digital which sounds better? I have a very low end receiver(sony str-de598) but it has both imputs. I see the new hd dvd systems offer 5.1 multi analog so I was just looking for some feedback on the 2 types.Thanks

Nevada_MO_Guy
03-28-2006, 03:52 AM
I was wondering for those of you who have tried both 5.1 multi channel analog vs optical/digital which sounds better?
I remember reading somewhere that the 6 channel analog would be best used with Super Audio CD's (SACD) and audio DVD's (DVD-A).
Dolby Digital and DTS stuff is best optical.

mfabien
03-28-2006, 05:40 AM
DVD-A offers High Resolution audio.

The equivalent for DVD-V(ideo) is lossless Dolby Digital Plus and DTS-HD. The HD DVD player needs to have the DAC for the technology plus speaker configuration and bass management.

If this topic is of interest, you may read the following:

http://www.spannerworks.net/reference/10_1a.asp

Bottom line:

For most people with normal ears, present DD and DTS does the job (digital connection). DVD-A and lossless offer audio in its original form with no exclusions (analog connections). Most excluded audio data would not be heard anyway.

Beastslayer1
03-28-2006, 09:38 AM
If my memory serves me right SACD and DVD-Audio are decoded only as 5.1 analog output not optical or digital coaxial.

mfabien
03-28-2006, 10:07 AM
If my memory serves me right SACD and DVD-Audio are decoded only as 5.1 analog output not optical or digital coaxial.

Correct. Lossless DD Plus and DTS-HD with new players HD-XA1 and the forthcoming BR player, same way = 6 analog cables.

But DD 5.1 and DTS surround is very good via digital connection. But DVD-A fans may argue otherwise.

AudialDelta
03-28-2006, 10:20 AM
Correct. Lossless DD Plus and DTS-HD with new players HD-XA1 and the forthcoming BR player, same way = 6 analog cables.

But DD 5.1 and DTS surround is very good via digital connection. But DVD-A fans may argue otherwise.

But it would be a tough argument to win with no way to do a direct comparison.

mfabien
03-28-2006, 10:39 AM
Sure there is a way...

with a universal DVD player, one that has the 6 analog outputs, play a DVD-A, like one from Steely Dan, in High Resolution with the analogs, then, remove the analogs, connect the player via digital audio and select DTS surround.

AudialDelta
03-29-2006, 04:30 PM
Sure there is a way...

with a universal DVD player, one that has the 6 analog outputs, play a DVD-A, like one from Steely Dan, in High Resolution with the analogs, then, remove the analogs, connect the player via digital audio and select DTS surround.


The time lag between comparisons is too long to have any consistency that is not completely related to your knowledge of which way it is connected. Direct A / B comparison is needed for accuracy. Double blind is needed for accuracy & consistency.