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LFE, DVD-A and SACD?

Apparently there are some odd things going on here. The subwoofer channel, with or without bass management, may contain both bass and LFE information. LFE information should be boosted in the processor to play at plus 10dB SPL. Obviuosly, this should happen before bass management mixes LFE and "regular" bass.

All of my DVD-As play back on my Denon DVM-4800 at appropriate levels, leading me to conclude that DVD-A (as a group) and Denon are somewhat clear on this. As I understand it, LFE content is flagged and handled appropriately. However, if I play back a movie through my 5.1 analogue outputs (instead of through my AVR-4800), the bass is down by 10 dB.

There seem to be a lot of complaints about bass levels from the multichannel SACD camp. Outlaw, the masters of bass management, have stated that some players automatically attenuate the bass by 10 dB and some studios are mixing the bass at -10 dB.

Curiouser and curiouser. Can anyone shed some light on this?


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Topic - LFE, DVD-A and SACD? - Jim Pearce 11:39:09 04/14/03 (21)


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