Recent content by Erdman

Thank you very much. I have this option "adjust clock with accoustic ref" checked. I am sorry to bring you some strange errors... it could come from anything strange in my own operating system (for example, I do not use pulse audio but only ALSA). I can give any info needed for further...

Hello John, Thanks for your quick reply and support. About null pointer exception : the cause you point out is perhaps not exactly the right one here, as I do not get message about lack of SPL calibration (or at least not at each issue and random close of REW). But I do get warning about too...

Hello, I use linux, up to date MX Linux 21 (Debian based). I installed (and reinstalled several times) REW 5.20.8 then 5.20.9. I have done some measurements (for room correction) with REW and a miniDSP Umik-1. I had some valid results, but I had frequent errors in REW (java issues according to...

Thank you very much for your help, John.

John, While I got a little of your attention, may I ask for options which are to be used when exporting an IR as a wav file, to use in a convolution engine ? - I was advised to use "symetrical window", for example 500 ms left and 500 ms right - "Normaiise samples to peak value" : to be checked...

Hello John, Thank you very much for the added explanations. I've just tried what you suggested : on the corrected response I remove IR delay, and the phase was quite perfectly the same as expected. Now I have a better understanding of what is an "impulse" and what's the effect of convolution...

Hello John, Thank for your quick reply and explanations, that's nice. OK for that : "Neither the SPL nor t=0 adjustments make any difference to what a convolution engine will do with the file, they are just conveniences for your visualisation of the corresponding magnitude and phase...

Hello avnirvana community, and thanks for sharing about REW ! I've got a few questions about REW and IR export as wav file. Actually, I took some measurements for left and right speakers and set up IR for correction : 1- one IR for gain correction, from a RMS average of my measurements and...

OK, thank you for having check !

Hello John, Thank you for your reply... and above all for REW itself ! That's a very skilled-and-generous piece of software. Concerning the "input" being greyed, what worries me is that I had to turn up or down the volume on my amp to get the mean SPL at the same level between two set of...

Hello AV NIRVANA community, As a new member I am glad to join this forum. I am quite interested in HiFi and have just picked up a umik-1 to make some measurements. On my linux laptop (MX Linux 21, based on Debian 10) with ALSA (no pulseaudio) : when launching REW (last 5.20.8 version), I got...