Bruel and kjaer 2232 sound level

[mfinzi]

Hi just got good calibrated B and K 2232 sound level meter. Want use it for REW spl meter calibration. Am l in the right direction. Regarss Mfinzi

 

[Wayne A. Pflughaupt]

If you’re asking if the B&K can be used to calibrate REW’s SPL meter, the answer is yes. However, if you have a USB measurement mic, then the SPL calibration is not needed.

Regards,
Wayne

 

[akl]

if you have a USB measurement mic, then the SPL calibration is not needed.

I use 3 minidsp UMIK 1 and the calibration file had been wrong by more than 3 dB !
IF you measure the sensitivity of a loudspeaker taht is double the power and a lot of power if you have to buy that extra power.

 

[akl]

Hi just got good calibrated B and K 2232 sound level meter. Want use it for REW spl meter calibration. Am l in the right direction. Regarss Mfinzi

I would use periodic pink noise and (synchronised) analysis by REW . 500 - 2k (?) or 150-5k . Make several measurements and vary many parameters, If you get a steady calibration all is o.k. . (You should note the # dBFS at a certain SPL level and calculate your max. SPL level).
Since even B&K SPL-Meters have errors and all measurements (especially in-room) have errors this cal may be accurate by 0.5 dB.
For higher accuracy you have to use pistonphones or even more sophisticated equipment to come near +- 0.2 dB SPL.
I use a lot of B&K 2209 , I am quite happy, but ... they are a little heavier than an UMIK 1 .

 

[DanDan]

I have a B&K 2250 with a Calibrator. At different times I measured two UMIKs, both were 1.8dB off.
It is possible to correct the UMIK Cal File. Open the file, it's just text, change the first sensitivity figure up or down the correcting amount.