Hi there,

Reading a bit more and people are seeming to suggest that going from a 5.1 analog output to a 5.1 analog input, the LFE channel would be reduced by 10db as part of the standard ?

and that it should be in the procesor that could compensate for this ?

Roy.

Huh? Why should it? There's no call for this in the standards....

Seems to be a common issue that many are coming across when attempting to feed 5.1 analog outputs from a HD-DVD/Blu-ray player into a conventional AV amp in order to access lossless soundtracks in the absence of a HDMI connection. See here for an example.

http://www.avforums.com/forums/showthread.php?t=456161

Given that it affects DD and DTS, it probably affected normal DVD players using analog outputs in just the same way except nobody really noticed as we all used the s/pdif digital connection between player and amp which compensates (in the processor) for this 10db difference automatically.

The problem, I suppose, is that when using analog connections the processor has no way of knowing whether the original audio source is coming from multichannel music, eg DVD-A, or from a DD/DTS movie soundtrack.

According to the link above, it looks like Pioneer, Denon, etc are now providing a 10db boost option on the LFE channel of their amps due it becoming more of an issue than it used to be. Now if this was on a 'per-input' basis, it could be switched on for the analog inputs only and you would then just have to remember to switch it off when playing a multichannel music source through this input.

Allan

quote:

Originally posted by Allan Probin:
Given that it affects DD and DTS, it probably affected normal DVD players using analog outputs in just the same way except nobody really noticed as we all used the s/pdif digital connection between player and amp which compensates (in the processor) for this 10db difference automatically.
Allan

So that's why live DVDs offering PCM tracks sound louder? For years I thought standard DVD movies were "level-capped" for some reason.