Recent content by tony22

Got it. Certainly for developing convolutions I do separate L and R channels, and for doing detailed acoustical measurements (I've worked with John Dykstra at GIK in the past). Once in a while though doing a "quick" two channel measurement is... well, quick. :)

Ah, right. That capture was from a set of measurements I used to create convolution files for Minimstreamer. But that shouldn't affect what I'm seeing with these differences, should it? (at least for FR - yes I guess it will affect what I see in Filtered IR) As to the mic position, I use a laser...

FDW?

Right in front of me the whole time. 🤦‍♂️ But now that I've confirmed the cal files are the same, I'm even more at a loss. I'm attaching the MDAT file if you could look at it. Simple two channel measurement of my system taken literally five days apart. Same mic position, same speaker locations...

Sweeet! Thanks John. You da man!

@John Mulcahy, hi. I was wondering if all of the "configuration data" associated with a given measurement is saved. I asked because I'm trying to figure out an oddity with a couple of measurements I took earlier this year, and for the life of me it almost looks like I used the wrong CAL file for...

:TThank you!

It looks like this right now but is other threads and in some tutorials I see it look like what I "expect" it to look like, as an example How is this done?

I set up a short sweep and positioned the capsule of the mic right in front of the tweeter (trickier than I expected!). Both tweets measure out essentially flat to 20KHz. All good. Thanks to all who helped.

I've done text files from EQ, but I can't figure out if there's a way to generate a convo WAV file.

:laugh::laugh::laugh: Good luck!

I think I understand your rhetoricalness. :) So maybe the question is - how much over the ambient SPL is enough for the sweep SPL to be effective?

If I use a calibrated SPL meter and run it right up to the midrange, say, just to get an easier way to read SPLs, what should it measure right up at the speaker to do this?

Is 4M new? I thought 1M was the longest sample rate; that's what I'd been using. Here's what's got me scratching my head. After reading about this I decided to see if my tweeters could reproduce out to 20KHz. My speakers are well designed, with a FR spec'd out to -2dB at 20KHz. I set up my...

Yep, I do. And I never go above 75dB SPL. What if I was using the longest sweep length available?