I have a sub connected and my monitors are close the wall. Should I set the monitors and sub to all default settings before I take measurements? Also I know Arc2 needs to be set for 48k for measurements but this does not apply when it's running on the bus right?
 
How do you add an image? It won't let me paste one in?
 
 
 
 
 

Mosvalve
 
How do you add an image? It won't let me paste one in?
 

I keep my images on photobucket and they have a link address and I use the icon to insert a picture URL.

I'm gonna try posting an image of my Arc2. Not sure if this matters but my monitors are 31 inches apart. Is that too close?
 

 
Well, I'm trying the photobucket method for posting images. This is my ARC2 plot. As might be apparent, I have no sub.
 

Mosvalve
I'm gonna try posting an image of my Arc2. Not sure if this matters but my monitors are 31 inches apart. Is that too close?
 

See that gold line? You've got a boomy room (more so than mine). See that white line? Arc has compensated most excellently.

Jimbo21
 
Well, I'm trying the photobucket method for posting images. This is my ARC2 plot. As might be apparent, I have no sub.
 

See those dips on the left? You've either not done equal distance measuring or you've got some really radical physical stuff happening in your room. Maybe you have no treatment?
 
One thing to remember, ARC will not be as effective on a non-minimally-treated room.

Mosvalve
I have a sub connected and my monitors are close the wall. Should I set the monitors and sub to all default settings before I take measurements? Also I know Arc2 needs to be set for 48k for measurements but this does not apply when it's running on the bus right?

One of the side benefits of ARC is the freq response plot you see after doing your measurements. Even if you think your room isn't a problem, you may be surprised at how bumpy that curve is. To get the most out of ARC, you ought to adjust the placement and settings of your monitors and sub so that the uncorrected plot is as flat as possible. Time consuming, yes, but worth the effort IMHO.

When measuring, it also pays to be precise as possible with mic placement. ARC seems to get confused if you don't follow the manual's suggested technique of starting with dead center, then left and right at exactly symmetrical positions for the rest of the measurements. Using a tape measure is not overkill.

And yes, the measuring is done at 48k, but the correction can handle anything up to 192k.

Cheers,
Eddie

Eddie TX
When measuring, it also pays to be precise as possible with mic placement. ARC seems to get confused if you don't follow the manual's suggested technique of starting with dead center, then left and right at exactly symmetrical positions for the rest of the measurements. Using a tape measure is not overkill.

With ARC2 I used a tape measure and a T-Square and put tape on the floor with exact marks and then made sure the center of the mic stand was on that tape mark.
 
With ARC 1 i just kind of marked it off.
 
It shows (I think) in the comparison of my two screen shots (that were many months apart).

I made a grid of sorts on the floor in front of my speakers and used a tape measure to ensure accurate measure points.  I then taped a laser pointer to the measurement mic so that I could be sure the mic was directly above each of the measurement points.
 
I think it is also recommended that you take the measurements in the area you are most likely to be in when you are using ARC - ARC allows for different measurement profiles; I made one for my primary mixing position, but you can also make one for the listening couch position (for clients), but this profile is only good for clients in the listening couch position and I wouldn't use it otherwise.

bapu

Jimbo21
 
Well, I'm trying the photobucket method for posting images. This is my ARC2 plot. As might be apparent, I have no sub.
 

See those dips on the left? You've either not done equal distance measuring or you've got some really radical physical stuff happening in your room. Maybe you have no treatment?
 
One thing to remember, ARC will not be as effective on a non-minimally-treated room.

 
I thought it was because I don't have a sub. I have traps in the corners and treatment on the side wall at the listening position as well. My room is asymmetrical though with a high kind of vaulted type ceiling. I did not use a measuring tape, just eyeballed the mic placement. I guess it's back to the old drafting board for another go. And thanks for letting me know.