Problem with THX Sound Test

TechChallenged

Someone tell me its going to be OK. I don't want to consume a weekend tearing apart my setup if this is not a problem. I used the Haunted Mansion DVD THX sound check. The check results went as follows;

Test Sound....................Actual Sound

Left front......................Same
Right front.....................Same
Center...........................Same
Sub................................Same
Right Surround...............Right Surround/Left Surround
Back Surround................Back Surround/Left Surround
Left Surround.................Same

My DVD player is a Samsung HD931 using Optical Cable to a Yamaha RX-V2400. The Yamaha sound test is correct.

Has anyone had similar experiances?

AsSiMiLaTeD

I don't understand your question...

TechChallenged

Sorry, initial post is as clear as mud.
Why is the sound coming from the left and right surround when the check says it should come from only the Right surround. Is something broke?

PolkThug

If your Yammie sound test is correct, I would guess the problem is on the DVD.

movieguy

the thx test assumes you have a side and rear surround set up , if your set up is 5.1 it will split the side surround signal and send it to both you rear speakers at the same time , watch the screen during the test and you'll see side surrounds as well as rear surrounds.

TechChallenged

The Test does recognize both side and rear surrounds. The issue is that the right surround check plays both left and right surround. Left surround check only plays left surround. Back surround check plays on both Back and left surround.

TechChallenged

Any suggestions out there.

Shizelbs

Does your receiver put out test tones for each channel?

kuntasensei

I had something similar in my room, but it turned out to be due to reflections from a glass door. When the right surround tone sounded, it sounded like both the left and right surround were making noise... but it was actually just the reflected sound from the glass door making it sound that way. You might try walking up to the speaker to make sure the speaker is making the noise and not some weird room acoustics.

gidrah

Originally posted by Shizelbs
Does your receiver put out test tones for each channel?

That's the key. Good question. I'm assuming that what's happening is that the test DVD (or something else if possible) is not 6.1 capable and so something is getting compromised. Disable your center rear and run the tests again.

TechChallenged

The receiver does put out test tones for each channel. Tonight I will disable the center rear and run the test again. I will also try this test using my 563a instead of the 931 to see if it is my player. Thanks for the help.

TechChallenged

Problem solved. My DVD player Audio Setting was set to PCM instead of Dolby. I can't believe it was this simple. Thanks again for all your suggestions.