Speaker Distance

[bread29]

When running an 'auto-setup' using the supplied mic, do you change the speaker distance that the receiver sets if it is incorrect? In the past, I have been changing the receiver's 'auto-setup' numbers to the correct speaker distance (ft) to the listening position. I have a Yamaha-rx-v863. Thanks.

 

[gmichael]

When running an 'auto-setup' using the supplied mic, do you change the speaker distance that the receiver sets if it is incorrect? In the past, I have been changing the receiver's 'auto-setup' numbers to the correct speaker distance (ft) to the listening position. I have a Yamaha-rx-v863. Thanks.

Hi,

Yes, change them to the correct numbers. Auto-speaker distance is something that they haven't seemed to perfect yet.

 

[bread29]

Will do! Thanks.

 

[dapack69]

How much of a difference would that make? I mean will one actually be able to tell?

 

[GranteedEV]

It mostly just takes lag time into account IIRC.

I'd set it if it's way off and the only thing between the receiver and speakers is 14 gauge wire but if there's more devices in the signal path, then I'd keep it the same, because IIRC it also considers any other devices hooked up like an external amp

 

[TLS Guy]

Hi,

Yes, change them to the correct numbers. Auto-speaker distance is something that they haven't seemed to perfect yet.

Wrong! Setting the correct speaker distance is one of the greatest benefits of the auto set up. All speakers have varying degrees of time delay and the actual measured distance is seldom the correct number.

 

[3db]

I have to say for my listening area that my RX-V1800 nailed the distance measurement spot on with all my speakers including the sub.

It even got the disatnces correct for my speakers connected to my other receiver!!!

 

[bread29]

So yay or nay? The RX-V863 didn't nail it spot-on, but it was close within an inch or two in some cases. However, the sub measurement was way off by many feet.

 

[tom67]

My common sense approach is to first set up the receiver manually.Run a monitor cord (if your receiver has this function) to your tv, as you wont want to have to hover over the receiver to see your settings. If for no other reason, you really should understand the parameters and settings and know how to change them......then do the auto setup a couple of times and see if you like the sound better in your primary listening spots. My YPAO setup is frankly unacceptable and hence an unusable function for me.....no big deal since I like tinkering.

 

[PENG]

I measured the horizontal distance from the center point of my speakers where I position the mike and the auto set up always set them to within one of two decimal point of a feet (1 to 2.5 inches) for all 7.1 channel. To me, it is amazingly accurate. It depends on your room acoustic conditions and the software.

 

[ParadigmDawg]

As TLS stated, it is setting a time domain not a physical distance. Leave it alone unless the auto cal is junk. I trust Audyessy but I don't know about YPAO since it isn't as robust.

 

[PENG]

So yay or nay? The RX-V863 didn't nail it spot-on, but it was close within an inch or two in some cases. However, the sub measurement was way off by many feet.

If they are within a few inches and you are sitting 10 ft away you can leave it alone. If it is way off then it needs to be investigated further. I am not sure about the sub being off by "many feet" but I would be curious enough to move it a foot or so, try it again, with and without disabling the low pass filter (if there is one), see the result first before saying anything.

 

[PENG]

As TLS stated, it is setting a time domain not a physical distance. Leave it alone unless the auto cal is junk. I trust Audyessy but I don't know about YPAO since it isn't as robust.

Just to make things a little clearer, it uses the time domain to figure out the physical distance so the objective is still to get the physical distance right.

The accuracy of the results depend largely on the auto cal system itself as well as the room. A few inches is not going to matter but "many feet" off is of a concern unless he is sitting many many more feet from his sub.

 

[ParadigmDawg]

Just to make things a little clearer, it uses the time domain to figure out the physical distance so the objective is still to get the physical distance right.

The accuracy of the results depend largely on the auto cal system itself as well as the room. A few inches is not going to matter but "many feet" off is of a concern unless he is sitting many many more feet from his sub.

Can you explain why Audyssey has my sub at 24.5 ft?

 

[PENG]

Can you explain why Audyssey has my sub at 24.5 ft?

I did a quick search and found one from Gene:

http://www.audioholics.com/reviews/receivers/yamaha-RX-Z9/auto-set-up-and-ypao-configuration

In the "Distance Check" paragraph he said something about the sub's large wavelengths, room.. etc. I guess that's one reason why it helps if you disable the LP filter during the auto cal process. I also suspect YAPO may not be as accurate as Audyssey in distance measurements. Basically subs are a bigger challenge for auto cal system to figure out the distance. No big deal as you can always punch in the physically measured number.

That being said, I don't you how far off your sub is, mine is within a couple of inches and we both have Audyssey XT. If 24.5 ft is say a few feet off the actual physical distance then I suggested you do it again but make sure you follow Audyssey instructions to the letter, such as ensuring a noise floor of <45 dB, using tripod, disabling LP filter etc.

 

[ParadigmDawg]

I did a quick search and found one from Gene:

http://www.audioholics.com/reviews/receivers/yamaha-RX-Z9/auto-set-up-and-ypao-configuration

In the "Distance Check" paragraph he said something about the sub's large wavelengths, room.. etc. I guess that's one reason why it helps if you disable the LP filter during the auto cal process. I also suspect YAPO may not be as accurate as Audyssey in distance measurements. Basically subs are a bigger challenge for auto cal system to figure out the distance. No big deal as you can always punch in the physically measured number.

That being said, I don't you how far off your sub is, mine is within a couple of inches and we both have Audyssey XT. If 24.5 ft is say a few feet off the actual physical distance then I suggested you do it again but make sure you follow Audyssey instructions to the letter, such as ensuring a noise floor of <45 dB, using tripod, disabling LP filter etc.

Just jacking with you. I have two subs and use an AS-EQ so it is a lot more resolution and doing a lot of stuff.

 

[3db]

As TLS stated, it is setting a time domain not a physical distance. Leave it alone unless the auto cal is junk. I trust Audyessy but I don't know about YPAO since it isn't as robust.

Nothing wrong with YPAO. It nailed my speaker/sub distances accurately in the two rooms that I had the system in.

 

[GO-NAD!]

I have to say for my listening area that my RX-V1800 nailed the distance measurement spot on with all my speakers including the sub.

Worked perfectly for me as well.

 

[bread29]

Ran the YAPO again and the sub distance setting was off by 8 feet from the actual distance. The Sub is located 17 feet from listening position and YAPO set it at 9ft. I have been changing the distance to the 'correct' number, but really can't tell the difference in sound between the two.

 

[billy p]

The distance really sets the amplitude of the signal and has little to do with the sound.