http://marjan.fesb.hr/~mateljan/arta/papers/Jambrosic-aaaa2007.pdf
some interesting read on the topic
Thanks, I will read into those docs soon!
I just thought something else, regarding the sine sweeps. I’m not really deep into this matter, but it seems logical somehow. Shouldn’t it be fair enough for rough tries to just reverse the sweep used, and then convolve the recorded data with it? I’ll try that soon in the digital domain, when no colourage from speaker and mic are in the game, and when I have the cdp tool installed on my system…seems too easy for me right now…
Ofc sweeps are grand, they don’t blow speakers so fast like impulses, and the whole wattage of the speaker gets concentrated at one frequency at a time. But you have one downside, it is very annoying, you need good speakers and a good mic, and the time where about any slight background noise can fuck up your ir of that special place is stretched painfully, so you have to record again and again because of that dog barking, and the guy sneezing, and your heavy panting of pain of expectation of yet another noise…
it is very annoying, you need good speakers and a good mic, and the time where about any slight background noise can fuck up your ir of that special place is stretched painfully, so you have to record again and again because of that dog barking, and the guy sneezing, and your heavy panting of pain of expectation of yet another noise…
No one said it’s easy 
EDIT: or cheap, lets take an example made by Pros:
http://www.openairlib.net/auralizationdb/content/terrys-factory-warehouse
done with:
-Genelec S30D Speaker / $2850
-
Neumann KM 140 Cardioid / $1350
-
Soundfield SPS422B Microphone/ $5500
Total: ~$10k
http://www.prosoundnetwork.com/archives/genelec-s30d-powered-ribbon-speaker/25974
http://www.daleproaudio.com/p-10439-soundfield-sps422b-microphone-system.aspx
And that’s only the beginning, probably more speakers are needed for omnidirectional sine sweep + probably something between 2 and 6 mics are needed to do Stereo / 5.1 recordings. Do the math! 
That’s probably why almost all the people uploading IR recordings toopenairlib.net are researchers, scientist, professors - most likely with some considerable funding.
Korg M1 only was/is mono (no osc panning), but the built-in fx are stereo AFAIK.
Oh… maybe that’s why I thought it was in stereo. Either way, I got it to sound the way I wanted using Renoise built-in fx and Korgs own fx.
Haha, i guess i’ll be going the lo fi version either way, i’m definately not buying a 5K+ mic the next few millenniums. 
Edit: I can’t wait to go to my secret spot in the woods where echo sounds unreal, i’m baffled everytime i go there. I could try to throw a rock off the cliff, but i guess it would bounce around and make a whole lot of noise. I could ask my friend to bring his hunting rifle, but i doubt he wants to be caught with a rifle in the middle of a national park. We are however close to new years eve and they start right about now to sell this horrible firework crap, so i could buy some of those and make a homemade firecracker with on big bang (firecrackers aren’t allowed here not even around new year, but huge and dangerous fireworks containing firecrackers are ok, one or two weeks in the year, obviously. This all makes sense if you put all logic aside ). I guess that would be my best choice.
I think these videos are funny and useful. Unfortunately not the best sound quality, still learned a lot.