Audio speaker calibration help! I am clueless when it comes to this.. - AVS Forum
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post #1 of 18 Old 02-01-2013, 09:44 PM - Thread Starter
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Hey guys

just purchased the samsung HT-e6730w 7.1 system and for the life of me I cant seem to calibrate it to sound decent.

the reciever comes with a auto calibration mic but everytime I run it the speaker db and distance levels are all over the place.

for example

center db - 4
right speaker +4
left speaker -6
front top high right speaker +5
front top high left speaker +2
rear speaker+6
rear speaker-4

its all over the place! and everything sounds so muddy with no dynamic range at all.

I am placing the mic in the correct position and the results are still so random. is it my room acoustics?

should I just leave all my db levels to 0db and call it a day?

any help would be appreciated. thanks guys.
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post #2 of 18 Old 02-02-2013, 04:40 AM - Thread Starter
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post #3 of 18 Old 02-02-2013, 05:27 AM
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Originally Posted by TEH_CJ View Post

Hey guys

just purchased the samsung HT-e6730w 7.1 system and for the life of me I cant seem to calibrate it to sound decent.

the reciever comes with a auto calibration mic but everytime I run it the speaker db and distance levels are all over the place.

for example

center db - 4
right speaker +4
left speaker -6
front top high right speaker +5
front top high left speaker +2
rear speaker+6
rear speaker-4

its all over the place! and everything sounds so muddy with no dynamic range at all.

I am placing the mic in the correct position and the results are still so random. is it my room acoustics?

should I just leave all my db levels to 0db and call it a day?

any help would be appreciated. thanks guys.

It could be a lot of things, room acoustics is certainly a suspect.

My first question would be: Are the results fairly consistent from run to run, with individual speakers only changing by a little bit, or do you find that say, the rear right is sometimes +6 and sometimes -3?

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post #4 of 18 Old 02-02-2013, 05:45 AM - Thread Starter
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Thanks for the reply

yes I would say they are faily consistent

the right speakers are always a lot higher in db than the left and I have no idea why.

should i leave it at that or should I match them all up to be equal?

shouldn't all speakers be the same in volume?
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post #5 of 18 Old 02-02-2013, 05:57 AM
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Originally Posted by TEH_CJ View Post

Thanks for the reply

yes I would say they are faily consistent

the right speakers are always a lot higher in db than the left and I have no idea why.

should i leave it at that or should I match them all up to be equal?

shouldn't all speakers be the same in volume?
No. All speakers should not be at the same volume. The calibration processor is compensating for the many variables involved in your room. Are the right speakers farther away from the mic?

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post #6 of 18 Old 02-02-2013, 11:35 AM
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Quote:
Originally Posted by TEH_CJ View Post

Hey guys

just purchased the samsung HT-e6730w 7.1 system and for the life of me I cant seem to calibrate it to sound decent.

the reciever comes with a auto calibration mic but everytime I run it the speaker db and distance levels are all over the place.

for example

center db - 4
right speaker +4
left speaker -6
front top high right speaker +5
front top high left speaker +2
rear speaker+6
rear speaker-4

its all over the place! and everything sounds so muddy with no dynamic range at all.

I am placing the mic in the correct position and the results are still so random. is it my room acoustics?

should I just leave all my db levels to 0db and call it a day?

any help would be appreciated. thanks guys.

Does the receiver have built in test tones for each speaker? Do you have a sound pressure level meter? This is a manual way, and also, for you, it would be a visual way of seeing how each speaker is set different due to many room/acoustic issues...The mic is attempting to set each speaker to a level that is equal to your ears at the seating area. Proper placement of the speakers is a very good place to start, prior to calibrating.

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post #7 of 18 Old 02-02-2013, 12:15 PM
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I downloaded the user manual for your system to be familiar with what you're seeing.

My first, probably most obvious question may seem a bit dumb, but please bear with me.

How closely did you follow the setup instructions in the manual - particularly the speaker wiring, connections and assembly?

If meticulous attention is not paid to speaker wire polarity and connection integrity, it can have the results you describe. That's quite an assembly project, and re-checking the connections is a good idea. Be sure to verify the surround speaker's connections to the WiFi module too.

Note: I am a little dubious about the surround speaker positions shown in their manual. (page 15)
Usually these are mounted on the wall facing into the listening positions, not on the floor as shown.
Frankly, I think the picture is a generic one as it doesn't depict your speakers accurately.
The text however, describes the correct positioning - follow that instead.

You mention "rear" speakers. Your 7.1 system doesn't have "rear" speakers. Instead you have 4 Front speakers -

You should have
  • L+R Front plus L+R Top (4 total - arranged in two towers?)
  • Center
  • L+R Surround
  • Sub Woofer

Total: 7.1

Do I have the correct manual - Is what I'm describing what you have?

Rather than go on speculating, I'll wait to see your responses.
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post #8 of 18 Old 02-02-2013, 01:06 PM
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Well, that manual is a bit lacking. In looking at other's reviews of your system, I suspect the way the wiring works is glossed over in the manual...

Is this what your unit's speaker connection look like?

If so you can't screw up the polarity, as was my concern - just which wire / speaker goes to which plug. So just re-check that.


The documentation alludes to the "manual" (aka - non-automatic) speaker settings menu, but doesn't describe it at all. If I can't find one, we'll need to interact on that a bit.

Do you have the ability to post a screenshot of it?

I'll keep looking for it online.
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post #9 of 18 Old 02-02-2013, 05:27 PM - Thread Starter
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Thank you so much for the help guys I really appreciate it

yes that is the correct connection you are looking at. The Manuel is very vague at explaining how to use the auto calibration mic.

basically it just says to put the mic in the correct seating postion and let the test tones play. the system plays a variety of test tones to measure the EQ and distance of each speaker

but the results are always so random. I understand the system has to compensate for my room acoustics but the system sounds odd when I am playing a movie and the far right speaker sounds louder than the left. its not an even sound field at all..
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post #10 of 18 Old 02-02-2013, 05:45 PM
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No offense but all calibration systems are not created equal. If you are sure that you are doing it properly then I would just set it manually however it sounds good to you.

No, Mr. Bond. I expect you to die!
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post #11 of 18 Old 02-02-2013, 07:00 PM - Thread Starter
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Yeah I can't get this sounding right at all.

it is a vacuum tube amp so do you think the tubs have warped and that has ruined the sound?

sound is so bad it hurts my ears. everything sound so muddy!

disgusting!

and btw my rear speakers are crackling at high frequency sounds.
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post #12 of 18 Old 02-02-2013, 10:35 PM
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post #13 of 18 Old 02-03-2013, 01:27 AM - Thread Starter
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Wow...I stuffed up

I tried calling bing lee to return in and they wont allow it. frown.gif

I'm going to try sell these speakers on gumtree and buy those speakers you listed.

are they good quality?

thanks heaps man.
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post #14 of 18 Old 02-03-2013, 04:13 AM
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Quote:
Originally Posted by TEH_CJ View Post

Hey guys

just purchased the samsung HT-e6730w 7.1 system and for the life of me I cant seem to calibrate it to sound decent.

the reciever comes with a auto calibration mic but everytime I run it the speaker db and distance levels are all over the place.

for example

center db - 4
right speaker +4
left speaker -6
front top high right speaker +5
front top high left speaker +2
rear speaker+6
rear speaker-4

its all over the place! and everything sounds so muddy with no dynamic range at all.

I am placing the mic in the correct position and the results are still so random. is it my room acoustics?

Probably.
Quote:
should I just leave all my db levels to 0db and call it a day?

any help would be appreciated. thanks guys.

You should consider improving how you have located your speakers.

I'm thinking that if you posted a drawing of your room layout, some truth would be revealed.

The greatest AVR and speakers in the world can't fix a bad room or poor speaker placement, and you ain't got the best AVR or the best speakers in the world!

If you want to test whether or not your AVR is worth going forward with, you might want to find the biggest room you can like a reasonably empty basement or garage, and set up the speakers and AVR towards the middle of the room in a classic arrangement. See if the AVR can balance out something that is already in the ball park. If it can't do that, then get your money back, it is junk! If it can, then see how you can fit a better arrangement into the room you want to use it in.
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post #15 of 18 Old 02-03-2013, 06:27 AM - Thread Starter
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Thanks a lot man

just a question though guys

the auto mic is designed for the listen to be in the sweet spot correct?

so what happens when someone sits near the left speaker its obviously going to be louder so how do you compensate with that being louder?
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post #16 of 18 Old 02-03-2013, 06:35 AM
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What model avr do you have?

No, Mr. Bond. I expect you to die!
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post #17 of 18 Old 02-03-2013, 06:38 AM
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Originally Posted by TEH_CJ View Post

Thanks a lot man

just a question though guys

the auto mic is designed for the listen to be in the sweet spot correct?

so what happens when someone sits near the left speaker its obviously going to be louder so how do you compensate with that being louder?
Yes. And you cant. There is no way to make it sound perfect every place in the room at the same time.

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post #18 of 18 Old 02-03-2013, 06:01 PM
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Yes. And you cant. There is no way to make it sound perfect every place in the room at the same time.

+1 If your setup requires somebody to sit significantly off axis routinely you can adjust to decrease the annoyance factor of being off axis, but it will makek the sweet spot a little less sweet. For a while I had my right surround down 3 dB from its proper level for that very reason . . . but that's about compromising sound not achieving perfection
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