Receiver Degrade Picture Quality? - AVS Forum
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post #1 of 9 Old 03-30-2011, 05:31 PM - Thread Starter
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Had a DirecTV HD DVR hooked directly into a brand new 55" Sony Bravia NX810 and the picture was literally blow-your-socks-off amazing. People would comment on it constantly. It was pure eye candy. Best I have *ever* seen.

Then I bought a Sony STR-DH820 Receiver and plugged the DirecTV into that, and then out to the Television by HDMI.

Now the picture doesn't blow me away that much anymore. The clarity isnt the same. It feels like maybe a 5% degradation in crisp-ness. Only a psychotic perfectionist like me would notice the difference. But its different. There seems to be some lag when things are moving as well, which wasnt there when the DVR was directly connected.

Are we talking an issue of needing higher speed HDMI cables? I cant imagine that a brand new $400 sony receiver would be degrading the picture quality ...
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post #2 of 9 Old 03-30-2011, 08:02 PM
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Maybe the DVR is putting out one resolution and the receiver is converting it to a different resolution (e.g. from 1080i to 720p), or the receiver is doing some other kind of video processing. Check the output resolution of both the DVR and the receiver and make sure they're the same. Also turn off any video processing in the receiver.
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post #3 of 9 Old 03-30-2011, 08:10 PM
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Have somebody help u do a blind A-B test just be be sure it's not placebo.

Solution: FREE. Explanation: I will have to charge$ you.

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post #4 of 9 Old 03-31-2011, 03:36 AM
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I thought I saw the same thing with my Onkyo receiver. Thats why I prefer to go from the source directly to the TV, without anything in the middle.
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post #5 of 9 Old 03-31-2011, 04:11 AM
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If that is the case just switch it back.
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post #6 of 9 Old 03-31-2011, 05:35 AM
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If you have access to HDNet, and they're still sending out their test patterns, you could measure your guesstimated loss by comparing the two hookups. See http://www.avsforum.com/avs-vb/showt...5#post20229775 ,which suggests a technique for HDMI vs. YPbPr comparison instead of DirecTV with and without a receiver. -- John
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post #7 of 9 Old 03-31-2011, 07:18 PM
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With HDMI, if you aren't processing the signal at the receiver, and you aren't getting sparkles or worse, the receiver isn't affecting your picture. The TV is getting exactly what was put out by the source.
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post #8 of 9 Old 04-07-2011, 09:51 AM
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Turn on HDMI pass through in the receiver's HDMI settings then turn it off. Test again by watching TV with the receiver turned off. That way you can be assured there is no signal processing occurring within the receiver. Compare it to when the receiver is running to see if there is any degredation.

There shouldn't be any degredation at all. I own the STR-DH820 and have not experienced any degredation through HDMI connections.
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post #9 of 9 Old 04-08-2011, 04:57 AM
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If it bothers you, you can run the HDMI directly to the TV and run optical from your DVR to the AV receiver.
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