REW - DEQ 2496 - 64bit Vista - Coming Soon

[fuzz092888]

I'm not saying it's ideal, but I doubt it would have a significant impact on the results of the measurements overall especially.

Integrating the mains with your subwoofer can be very beneficial, and his receiver should be able to mix the LFE into the L-R Signals.

Receiver - DEQ
DEQ - Crossover(CX2310)
Crossover to Sub and Mains.

The biggest pain point is by far doing all the measurement work. I can't blame him if he doesn't want to fool with it. At some point good enough is good enough and I get tired of tinkering too. I just want to offer the option for something perhaps later he can fool with if he so chooses.

The receiver can't mix the LFE into the mains. LFE + main or the variations allow the L/R to play full range and also have the subs receive the frequencies below the crossover point, but there is no way to send the LFE track from movies to the mains.

True. After about 5 hours I gave up, disconnected the miniDSP and went Audyssey only after I and gain issues and clipping issues.

 

[Alex2507]

I think I got it ...



I know Doug would be proud.

 

[Alex2507]

there is no way to send the LFE track from movies to the mains.

Good to know.

True. After about 5 hours I gave up, disconnected the miniDSP and went Audyssey only after I had gain issues and clipping issues.

That blows. It only took me three days to get this far and this is a far cry from multiple position individually tailored curves for L&R. I never did calibrate my sound card or apply my calibration files. It will never be said that I flew too high or too fast for that matter.

If you're not making it happen in 5 hours, I don't even want to know. I don't know what half the sh!t you buy actually is. You said you had a DEQ too but it was a later model? Has anybody offered you 20 bucks for that humming hunk of unusable buzz bait?

 

[speakerman39]

Alex, have changed my mind. Think that I will just have you come for a visit and help me get everything dialed in.......LOL!!!! Hey, I do have some pulled pork. It is nice and BBQ'd too!

Cheers,

Phil

 

[fuzz092888]

That blows. It only took me three days to get this far and this is a far cry from multiple position individually tailored curves for L&R. I never did calibrate my sound card or apply my calibration files. It will never be said that I flew too high or too fast for that matter.

If you're not making it happen in 5 hours, I don't even want to know. I don't know what half the sh!t you buy actually is. You said you had a DEQ too but it was a later model? Has anybody offered you 20 bucks for that humming hunk of unusable buzz bait?

Don't get discouraged. My issues had nothing to do with taking measurements and generating EQ curves. Once you get the hang of it, that's the easy and quick part. Maybe an hour to do all of the measurements and curves if you're really getting into it. If you're doing more of quick and dirty with 3-5 measurements and letting REW do all the auto generating. It'll take you longer to set up and break down the measuring equipment than to actually do the measuring and EQing.

My issues were with channels clipping due to incompatible preout and input voltages. I also think I may have been clipping an amp channel somehow, but I still can't figure out how. I was getting nasty distortion from one of my woofers and I couldn't quite identify where in the signal chain it was occurring. I could manipulate certain things to either make it more or less noticeable, but couldn't eliminate it. I'm pretty sure it was the miniDSP 4x10 that was the culprit, because I never had that issue with the 2x4.

 

[Alex2507]

D I'm pretty sure it was the miniDSP 4x10 that was the culprit, because I never had that issue with the 2x4.

Do you get to return that? Not being sure of the cause is annoying. My DEQ hums a little. Having to be that close to the gear made it possible for me to hear the cable box and Oppo 83 ... and that teeny hiss when your ear is right beside the driver. But the DEQ itself I think hums. It's screwed to the shelf supports so from 6-12 inches away you know something is going on.

I played a bunch of stuff and actually raised the sub gain from flat to how much bass I wanted to be hearing with some music I know well. Obviously the nature of the bass is completely different. I usually don't exceed 70 db for music and at that level the bass needs a little push to get on stage. I guess if I intended to crank it to 84 db I would need to reign the sub gain back in to flatter-ish.

Here's the take-away from all this DEQ'ing and REW'ing: PENG said there was a learning curve.

Totally worth it ...

 

[Alex2507]

I found out the Dual Mono setting is in Utility.

YAA, did you see the file I attached? My ECM8000 doesn't start to turn wonky until about 30 Hz. I'm not worried but as the Hz drop, the correction is -3.87 @ 16 Hz so you should worry. That file is on an odd shaped disc. There are other files on there. I tried the drag and drop thing but failed and I don't know how to calibrate the sound card so REW isn't quite the scalpel it might be ATM. At least I know the mic is linear enough through my range of interest.

So the DEQ2496 is actually a good one position solution as one poster mentioned on diy forum. It doesn't average out a curve for multiple positions but for one position I bet it allows for individual distance settings. I could use that until I figure out how to use REW to do some averaging among other things, Something else I would like to know is if the volume of the test tone can be lowered ... like maybe by turning my subs down? Or right on the DEQ? I can't do that to my neighbors yet again. I guess at this point I could still use REW enough to generate sweeps instead of using the tone (pink?) generated by the DEQ.

I was thinking about using an REW sweep from 60 to 10,000 Hz and feeding it into my Yammy 663 center channel analog input. That signal is then run through the rec'r's GEQ. I'd like to be able to see what's going on there too. Oh yeah, I suppose I should be reading the guide over at HTS and maybe my manuals but some help with the questions and general how-to stuff is beyond appreciated.

My xenyx 802 has a wall wart power supply but it works even when it is not plugged in. Is that so it doesn't drain your laptop? BTW, I need a new battery for my laptop. The forum is in like sleep mode. I can't hyper link.

My Laptop:

http://www.cnet.com/products/asus-x83vm-x1-core-2-duo-p8400-2-26-ghz-14-1-inch-tft/

Any suggestions? ... okay, any suggestions that are anatomically feasible?

Huge learning curve for me but I guess it's interesting enough and I already have results. TLS' thing about being TDTOG is inches away from my current place in the audio world. I've had this stuff for years. The other YT video on the DEQ has a guy that says it is very intuitive and you can figure it out and oh, btw it does auto eq but that's well, that's just crazy advanced ... we don't mess with that. He's a pro sound/TV guy concerned with compression and delay.

I think the huge spike in my sub's response is due to cabinet size. If I poke holes in the plastic plate-amp housing the Vb will grow. That changes the port tuning frequency but which way.? Poking those holes is a one way street but at least REW will show what happened when and if I ever want to move furniture around. Too-da-loo.

 

[STRONGBADF1]

We could learn to live without electricity ... out in the woods.

I could...

 

[Alex2507]

HTS talks about using a midi thing and they link this $240 deal :

http://www.amazon.com/Edirol-UM-1EX-USB-MIDI-Interface/dp/B000BD321K

Seems steep and isn't there a way to not have another box in the mix? Can't the computer handle that?

I'm just taking a close look at my mixing board. It has 2 mic inputs and L&R outputs. I'm not sure what but there are implications. Clearly my life isn't complicated enough.

 

[fuzz092888]

YAA, did you see the file I attached? My ECM8000 doesn't start to turn wonky until about 30 Hz. I'm not worried but as the Hz drop, the correction is -3.87 @ 16 Hz so you should worry. That file is on an odd shaped disc. There are other files on there. I tried the drag and drop thing but failed and I don't know how to calibrate the sound card so REW isn't quite the scalpel it might be ATM. At least I know the mic is linear enough through my range of interest.

I didn't, I saw the measurement but not the file. Yea, My file corrects down to 5Hz I think. I also remember that when I finally figured out how to cal the sound card it started to roll off around 20Hz on the low end and like 15kHz on the top end.

So the DEQ2496 is actually a good one position solution as one poster mentioned on diy forum. It doesn't average out a curve for multiple positions but for one position I bet it allows for individual distance settings. I could use that until I figure out how to use REW to do some averaging among other things, Something else I would like to know is if the volume of the test tone can be lowered ... like maybe by turning my subs down? Or right on the DEQ? I can't do that to my neighbors yet again. I guess at this point I could still use REW enough to generate sweeps instead of using the tone (pink?) generated by the DEQ.

Mic sensitivity up mans volume can go down

I was thinking about using an REW sweep from 60 to 10,000 Hz and feeding it into my Yammy 663 center channel analog input. That signal is then run through the rec'r's GEQ. I'd like to be able to see what's going on there too. Oh yeah, I suppose I should be reading the guide over at HTS and maybe my manuals but some help with the questions and general how-to stuff is beyond appreciated.

Yea, that would work. It's interesting to see what the auto cals do.

My xenyx 802 has a wall wart power supply but it works even when it is not plugged in. Is that so it doesn't drain your laptop? BTW, I need a new battery for my laptop. The forum is in like sleep mode. I can't hyper link.

My Laptop:

http://www.cnet.com/products/asus-x83vm-x1-core-2-duo-p8400-2-26-ghz-14-1-inch-tft/

Any suggestions? ... okay, any suggestions that are anatomically feasible?

https://www.batteriesplus.com/battery/laptop/asus/x-series/x83vm=x1/com10076

Take the bottom cover off. There should be a little slider switch that allows you to pop the old battery out and install the new one

Huge learning curve for me but I guess it's interesting enough and I already have results. TLS' thing about being TDTOG is inches away from my current place in the audio world. I've had this stuff for years. The other YT video on the DEQ has a guy that says it is very intuitive and you can figure it out and oh, btw it does auto eq but that's well, that's just crazy advanced ... we don't mess with that. He's a pro sound/TV guy concerned with compression and delay.

I hae a 2496 too and there are a bunch of cool features. My only irritation is that it doesn't EQ low enough for most of my purposes, but I did repurpose it for my mains and I play to screw around with those and see what the width option and some other stuff can do.

 

[fuzz092888]

Do you get to return that? Not being sure of the cause is annoying. My DEQ hums a little. Having to be that close to the gear made it possible for me to hear the cable box and Oppo 83 ... and that teeny hiss when your ear is right beside the driver. But the DEQ itself I think hums. It's screwed to the shelf supports so from 6-12 inches away you know something is going on.

I played a bunch of stuff and actually raised the sub gain from flat to how much bass I wanted to be hearing with some music I know well. Obviously the nature of the bass is completely different. I usually don't exceed 70 db for music and at that level the bass needs a little push to get on stage. I guess if I intended to crank it to 84 db I would need to reign the sub gain back in to flatter-ish.

Here's the take-away from all this DEQ'ing and REW'ing: PENG said there was a learning curve.

Totally worth it ...

Nope. Bought it like two years ago. I guess I could e-mail them and ask, but I'm guessing shipping to China ain't cheap.

 

[fuzz092888]

HTS talks about using a midi thing and they link this $240 deal :

http://www.amazon.com/Edirol-UM-1EX-USB-MIDI-Interface/dp/B000BD321K

Seems steep and isn't there a way to not have another box in the mix? Can't the computer handle that?

I'm just taking a close look at my mixing board. It has 2 mic inputs and L&R outputs. I'm not sure what but there are implications. Clearly my life isn't complicated enough.

Are you trying to connect the 2496 to your computer to upload REW files to it?

I think this might work. I've been meaning to get one, but new and interesting subwoofers seem to keep getting in the way.

http://www.amazon.com/SANOXY-Cable-Converter-Keyboard-Window/dp/B0017H4EBG

 

[Alex2507]

Are you trying to connect the 2496 to your computer to upload REW files to it?

I think this might work. I've been meaning to get one, but new and interesting subwoofers seem to keep getting in the way.

http://www.amazon.com/SANOXY-Cable-Converter-Keyboard-Window/dp/B0017H4EBG

I don't have any rew files yet but yeah ... a computer connection would be better than manually selecting the frequencies for auto eq every time around.

Now how to raise the mic sensitivity ... and all that other stuff you said to do.

This midi interface is interesting too.

http://www.amazon.com/CREATIVE-EMU-XMIDI-MIDI-Interface/dp/B000JLU26W/ref=pd_sim_sbs_267_3?ie=UTF8&dpID=41u0k2iIU7L&dpSrc=sims&preST=_AC_UL160_SR160,160_&refRID=1NQ65KQSHGJA5TMRV3S7

I like the ones that are straight adapters but I wonder if they are all the same.

 

[Alex2507]

Turns out Jeff highlighted the part about turning down the test signal in the paper manual. The part in the vid about the I/O setting going to -12? That needs to be like -25 in my case. RTFM indeed.

HTS has a little thing about setting up my soundcard which btw is listed as end of service life but. It has worked alright so far.

I guess if was ever interested enough I could manually apply the correction to a measured sweep from the mic but I know it to be flat from 30 - 3k Hz. That's enough to keep me interested as the mostly unread Ultracurve and Xenyx manuals glare at me.

I used to know this Adam guy ... but irregardless.

 

[Alex2507]

Lo and behold. HTS has a thing on calibrating sound cards. How convenient. No cussin' over there though. Hmmm ...

 

[fuzz092888]

Lo and behold. HTS has a thing on calibrating sound cards. How convenient. No cussin' over there though. Hmmm ...

Calibrating the sound card just means you have to create a loop between your input and output. Then using REW's built in function to create the file.

What soundcard are you using again?

 

[Alex2507]

Calibrating the sound card just means you have to create a loop between your input and output. Then using REW's built in function to create the file.

What soundcard are you using again?

This Creative Soundblaster Live from the 90's.

I'm right in the middle of reading that part. Almost there ... this close ll.

I get side tracked.

 

[fuzz092888]

This Creative Soundblaster Live from the 90's.

I'm right in the middle of reading that part. Almost there ... this close ll.

I get side tracked.

How are powering the ECM? Is that sound card for ouput only when you're doing measurements or is that input too? Where is your mic in coming from?

 

[Alex2507]

How are powering the ECM? Is that sound card for ouput only when you're doing measurements or is that input too? Where is your mic in coming from?

The ECM is hooked up to the Xenyx 802. The Xenyx can be plugged into 120v or not. It has a phantom power button if that's what you're asking.

The sound card has both, output and input. The mic goes in the Xenyx and gets output via the R ch main out which goes to my sound card line-in. The sound card R line out goes to my rec'r's analog inputs on the front panel. I use a Y splitter there.

The REW help files are doing it for me. Sound card is calibrated. If you check loopback under Analysis, the left channel is to be used for that. Checking the levels with sub and speaker tones reads similar SPL for individual speakers and subs so that good.

Now it's about importing the mic calibration files off that CD. I'm a little fried but now I'm closer than ever. Soon.

 

[fuzz092888]

The ECM is hooked up to the Xenyx 802. The Xenyx can be plugged into 120v or not. It has a phantom power button if that's what you're asking.

The sound card has both, output and input. The mic goes in the Xenyx and gets output via the R ch main out which goes to my sound card line-in. The sound card R line out goes to my rec'r's analog inputs on the front panel. I use a Y splitter there.

The REW help files are doing it for me. Sound card is calibrated. If you check loopback under Analysis, the left channel is to be used for that. Checking the levels with sub and speaker tones reads similar SPL for individual speakers and subs so that good.

Now it's about importing the mic calibration files off that CD. I'm a little fried but now I'm closer than ever. Soon.

My question was because I noticed your soundcard didn't also have any mic in's with 120V. So when you calibrated stuff, you created the loop by outputting from your sound card into one of the in's in the Xenxy right?