If you don’t have a full range driver and taking in consideration that A and M don’t really start to differ until 2.5KHz (at least with your UMIK unit), do you think that it could be possible to use as a source the tweeter of a loudspeaker with a crossover frequency of 2 KHz or lower?

Thx

Is this the utility you are talking about in MiniDSP forum?

http://www.minidsp.com/forum/umik-questions/10088-translate-0-degree-calibration-to-90-degree

If not, could you point me to the right utility, please?

Thanks!

I did find the utility in the MiniDSP forum and I tried it.

The results were very similar to the results I got with your method, although they seem to correct a small variation between 2-5kHz. Overall, as it’s much easier and faster, I guess the utility is the way to go (I was surprised to see it worked so well). I’m really glad I had read your article first and made my own file, following your instructions to verify it. I’m not sure I’d have trusted a utility could do it automatically otherwise :).

Overall the main differences using both methods are above 10kHz, with a max of around 5dB around 15kHz (in my room). The two corrections are very, very similar, and the small differences probably not audible.

Thanks again for taking the time to post this!

I just wanted to say thank you very much for this. I’ve just done this to create a 90 degrees calibration file for my Umik-1 from the standard calibration file, and it worked great.

There was no phase data in the original file, so I didn’t add it. It doesn’t look like REW needs it anyway.

Thanks again for taking the time to share this, most appreciated!