Which Umik Cal file should I use for Dirac?

[paulwgraber]

I was always told to use the 90 degree file but other users have told me no to use the regular one?
Interesting enough Chat GPT says do not use the 90 degree

 

[lovinthehd]

Not a dirac user, but I did a little searching. Look at post 6 in this thread https://www.minidsp.com/community/threads/umik-1-mic-position-and-polar-plot.15895/

 

[paulwgraber]

From what I have read using the 0 degree cal file simply make your speakers more bright which I am not that opposed to to be honest.

 

[dlaloum]

For Dirac to get accurate measurements the mic needs to be facing straight up, and not pointing in any specific direction.

And as the mic has different sensitivity from the sides, as compared from directly in front, you have to use the right calibration file to get the right result - which is the 90 degree calibration file.

The 0 degree calibration file is used for near field measurments of specific speakers or drivers, typically at less than 1m distance from the speaker... to get an approximation of its anechoic response, rather than the "in room" response.

In any case definitely the 90 degree file.