how can in cal file change the level of the microphone ?

[user44455555]

I have three microphones(all XLR) and i record a measure and depend on microphone i change later the cal file fo compare.microphone results.

I try this line in cal file on top to see if anything change
Sens Factor =4.0dB
or
Sensitivity -12.34 dBFS

as explained here https://www.roomeqwizard.com/help/help_en-GB/html/calfiles.html

it did not change anything in level when reload the cal file

how can i change the cal file so all microphone have same level after load the cal file ?

BTW: seem microphones for around 80$ give alot worses results. a beyerdynamic mm1 give 5.8 db more output as the ik multimedia mems and have less noise floor on same preamp and setting . I never thought that there are so much diffrence on microphones.

 

[John Mulcahy]

Are you reloading the cal file using "Change cal" on the measurements you had already made? That is the only way to update their cal data.

 

[user44455555]

Are you reloading the cal file using "Change cal" on the measurements you had already made? That is the only way to update their cal data.

yes i edit it with a editor and save it . i try reload , or start rew new, switch to other cal file and then reload the edit. stay always same. i use the spl meter long time ago for this input. maybe it can disable something ?. I use asio device. .I know from the usb ears device that it accept levels.

rew read the cal file curve in, because it show correct whwn mic/meter cal is enable

begin of the cal file i change value is . the line with ; is a comment and not process from REW right ?


;for beyerdynamic Sensitivity: 15.3mV/Pa = -36.3dBV
;Frequency[Hz] "rel. Level [dB], 90-degree-curve"
Sensitivity -12.34 dBFS
50 0.5
60 0.3
70 0.2
80 0.2
90 0.1
100 0.1
110 0.1
120 0.0
130 -0.0
140 -0.1
150 -0.1

REW version is V5.31.3. when click change cal, i see in the rew file selector on right side preview that file is correct.see screenshot this button i use. cal file change but sensivity change not. screenshot look a little strange because i load also in the other microphone this cal file. the cal file i add sensitivity is the file 90 Grad. the 0 Grad i have not change. because i change sensivity when switch between 0 and 90 grad bass level need change

 

[John Mulcahy]

Changing the cal file works OK for me as long as the measurement was made with a cal file to start with. If that's not working for you could change the spl offset by the amount you need using the graph action for that.

 

[user44455555]

If that's not working for you could change the spl offset by the amount you need using the graph action for that.

I notice now if a cal file did not have a sensitivity or sensfactor inside it do not set back the value that was in the spl meter calibrate choose. I better add in all my 3 cal files sensivity values, then i can set my input gain of soundbox to middle and change sensitivity facter in cal file that it fit

maybe the spl meter calibrate give a hint so i can easy calculate which sensivity i need add in cal file ?