Thank you for your response, it is very explicative.
1) Fade: the chirp has a fade-in of 0.1 ms and fade out of 15 ms
My point is that it can be easily seen that both nofade and ES shows an almost perfect DIRAC in time domain while fade does not.
Also there is a difference between nofade and ES in frequency domain at very high freq. (close to Nyquist) that is due to the different formulations of the chirps (all info about Expochirp can be found here: http://expochirp.tumblr.com/)
Now the discussion I reckon shall be on the difference this does make in the real world for room correction purposes and if a difference is perceived by the user between the two different IRs.
You says: “The way we do room correction means that pre-ring (if it happens and I have not seen it in practice) is not an issue.”
I also agree with you that probably C74 forum is not the right place to discuss about math on this topic but I really appreciate the fact that you are willing to discuss more in detail, thank you.
Re deconvolution, I am not an expert in this and I really appreciate your offer to prepare sample patches.
I wish you a very nice day
Sep 18, 2012 at 2:09pm #232055