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Dynamic Range Compression - AVR vs Blu-ray player or both?

post #1 of 7
Thread Starter 
Here's my setup:

Sony STR-DH820 Receiver
Sony BDP-S790 Blu-ray Player connected via HDMI

Both components have a Dynamic Range Compression feature which is adjustable on both. Is it a best practice to use the compression on one device or both? The default setting on the AVR is STD which is defined in the manual as: "STD: The dynamic range is compressed as intended by the recording engineer."

The default setting on the Blu-ray player is Auto which is defined in the manual as: "Auto: Performs playback at the levels specified by the disc (BD-ROM only). Other discs are played back at the [ON] level."

Apparently the Blu-ray player is using predefined Dolby compression levels for BD-ROMS and a standard flat compression on other audio sources. My thoughts were to disable DRC on the Blu-ray player and leave the AVR on STD, but I wanted to get input from others that may know more about it than I do for a best practice recommendation.

Thanks

NOTE: This is an entirely separate setting from my AVR's Sound Optimizer which is essentially a "Night Mode" that compresses audio down for low volume listening. I do not use this feature.
post #2 of 7
Do not use either.

Dynamic compression destroys sound quality and realism.

You want all the dynamic range possible.

Unfortunately, your Sony receiver is incapable of delivering it.
Sony overstates the capability of their receivers.
Event their top of the line receivers rated at 100+ watts per channel, only deliver about 35 watts per channel with 5 or 7 channels driven.
post #3 of 7
[quote=Dionyz;21940431]Do not use either.

Dynamic compression destroys sound quality and realism.

You want all the dynamic range possible.


What if you live in a Condo & want to listen at night or ealy morning & dont want to use Headphones?
post #4 of 7
Thread Starter 
I think I may have posted this in the wrong section. Can a mod move this to Audio theory, Setup and Chat for me?
post #5 of 7
DRC is applied to PCM. So, if you are bitstreaming to the AVR for decoding, DRC would have to be applied in the AVR. If you are decoding in the player, it should be applied there.
post #6 of 7
Thread Starter 
That makes sense. I'm bitstreaming to the AVR. I've been reading on multiple forums that best practice is to turn off DRC everywhere in order to get the full dynamic sound. I think I'm going to do that and see how it goes.
post #7 of 7
Well, yes. DRC can be useful under certain circumstances. But, most would agree it should not be used unless needed.
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