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Fi IB3-18 x 8 and SEOS pure 10 kits! - Page 29

post #841 of 1021
Thread Starter 
I will run the loopback on both the AVR and amp. Can one use HDMI out and the analog mic as the input? I sold my UMM6 to a fellow member since it was simple and they are first starting measurements. I sold it cheap too! So I am stuck with my EMC-8000 and mobile pre. I have the cal files already installed for both. I am just wondering if I could use both analog and digital?
post #842 of 1021
There is nothing preventing you from sending digital (HDMI) to the AVR and using the mobile pre with the mic. The only issue is that when you calibrate the sound card (mobile pre), you are calibrating any coloration that the sound card adds to the mix. When you are not using the output of the sound card, you cannot be sure that the calibration is relevant anymore.

With my Tascam US-122MKII my calibration yielded very good results and was only down by a very small amount at 3 hz if I remember correctly. I tested that sound card against my o-scope and felt pretty confident that the output was really flat and that the calibration results were almost completely for the input side of the sound card. I found similar results with a $3 usb sound card from ebay, the output was pretty flat but the input was horrible. I don't know if most sound cards are the same or not.
post #843 of 1021
Thread Starter 
So just for fun I said screw it and threw in a new battery to my RS meter and hooked it up to my new lab top with HDMI out. So my input is my external mic and the output is the SR8100 thru HDMI. I set the meter and calibrated it and ran 15 dBs under reference on the MV which is 40. The meter has no cal files just c-weighting and no sound card involved. Here is what I got.



I am trying to load the drivers of mobile pre to my computer but for some reason the computer is not finding mobile pre even after I have installed the drivers.
post #844 of 1021
In windows, go to the device manager and see if it listed there.
post #845 of 1021
Thread Starter 
Quote:
Originally Posted by Mrkazador View Post

In windows, go to the device manager and see if it listed there.

This is windows 8 which I never used before, kind of a PITA because I am used to windows 7.
post #846 of 1021
I've never used win8 but I assume you can search for programs, search for device manager.
post #847 of 1021
Thread Starter 
Quote:
Originally Posted by Mrkazador View Post

I've never used win8 but I assume you can search for programs, search for device manager.

I can't even find programs
post #848 of 1021
<---This guy.

Not a fan of Windows 8.

MK, mad respect for taking the time to really nail down your measurement issues. I'm learning a lot in regards to troubleshooting/loopback, etc...
post #849 of 1021
Right click on the bottom left of the screen and "Programs and Features" should be at the top of the pop-up, at least it is on mine.
post #850 of 1021
If you haven't yet, go to microsoft and download windows 8.1 at least takes to the desktop after boot instead of the tablet mode made for touch screen machines
post #851 of 1021
Thread Starter 
BTW, just for old times sake and what everyone thought was a great system when I put it together, here was the eD 190v2's measured with the old computer, RS meter(same one), to computer, to my Ada processor, to my Behringer EP-2500's. This was just C-weighting and no cal files:



Here are the IB subs



I am going to bring home my windows 7 office computer with hdmi(I love the HDMI output for measuring) and see if I can get my mobile pre to show up and use that as the input. I want to compare mics and see what happens. The RS digital meter was measured by Notnyt a while ago and it measured just like his calibrated mics but I bought the cross spectrum EMC 8000 anyways. This is the first time I got something to represent a sealed system and it was repeatable, go figure.
post #852 of 1021
Quote:
Originally Posted by popalock View Post

<---This guy.

Not a fan of Windows 8.

MK, mad respect for taking the time to really nail down your measurement issues. I'm learning a lot in regards to troubleshooting/loopback, etc...
+1 mad props

I'm learning tons as well.
post #853 of 1021
Quote:
Originally Posted by popalock View Post

^---This guy.

Not a fan of Windows 8.

+1 for this guy too.


Quote:
Originally Posted by popalock View Post

MK, mad respect for taking the time to really nail down your measurement issues. I'm learning a lot in regards to troubleshooting/loopback, etc...
Big ups to MK for his never ending madness and tireless persistence. On with the data!
post #854 of 1021
Thread Starter 
Here is a graph using the EMC 8000 and hdmi output



RS meter with c weighting

post #855 of 1021
Thread Starter 
Here is a full response right channel.

post #856 of 1021
same two pics scaled the same and overlayed. i'd call them a pretty darn good match from ~5hz up to 60hz or so where it gets squirrelly.

post #857 of 1021
"Big ups to MK for his never ending madness and tireless persistence."

cheers to that!
post #858 of 1021
Thread Starter 
3 Hz as well. Can I run spec lab from this computer and measure from my room? This computer has a bluray player in it.
post #859 of 1021
Thread Starter 
I have a bassis on the way and will get a nearfield response then add an LT to it. I will then remeasure the LP and see what happens.
post #860 of 1021
Marchand WM-8?
post #861 of 1021
Thread Starter 
I don't know, I traded a member for it. It is mono which is perfect for me.
post #862 of 1021
Thread Starter 
Yes it is this one but mono

post #863 of 1021
Stepped controls?

Just curious. I was thinking of still getting one of these. I just wish it also had a phase option.
post #864 of 1021
Nice! Slick little unit there.
post #865 of 1021
Thread Starter 
Bassis in the house, here is a full range response without any EQ, right channel and subs only.

post #866 of 1021
Looks to me like you don't even need the Bassis, James. smile.gif

In fact I only see the rolloff ~12hz kick in and that's most likely just the signal chain rearing it's head in and there is nothing the Bassis can do about that. frown.gif However on it's own it's dead flat to about 2hz so it sure won't add any rolloff.
post #867 of 1021
Thread Starter 
Well, the only thing in the chain that can rolloff is the processor and clone. Those were 100 and 105 dBs sweeps. I am using a Sherbourn processor now rather than the receiver. Same clone though.
post #868 of 1021
Honestly the amount of rolloff you have is not that bad. I'm pretty impressed.
post #869 of 1021
Thread Starter 
My processor will not power up now! Keeps shutting down. I would have had a close mic and bassis going by now! WTF! Calling Emotiva tomorrow, I wish Sherbourn still existed. The good news I am finally getting repeatable graphs again to show compression sweeps or whatever.
post #870 of 1021
Thread Starter 
Could the bassis cause this problem? I will disconnect it and try again tomorrow to be sure.
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