Calibrated mic issue

[Joshi@111]

I am currently measuring my subwoofer with dayton audio umm 6 mic. But in REW its doesn't show any low frequency spl & it show good spl from 150hz..
I m not getting wether it a fault of mic or software..
If any buddy know something about this please let me know.

 

[TNT]

... or maybe the woofer isn't so "sub"...?

//

 

[Joshi@111]

It is sub only...i also try with another way by just playing 50 hz node ... still some time mic show 50hz peak in rta analyser but not for all time ..is there any firmware for mic which need to update? Or is there any issue with pc/software (REW)settings?

 

[AllenB]

What about gating?

 

[maxolini]

You have a laptop ? Test inside your car.
If no lap, bring the PC outside ,
Thing is that you need to test with another source of bass,

Since you don't have another mic to compare you can't tell but you have many other sources , your friends speakers , your neighbors 5.1 systems , your family trucks or cars.

If all of those test the same, means a bad mic or wrong settings.

There is many ways to skin a cat 😺

 

[bwaslo]

What is the line frequency in the your country? (Try to avoid that in your tests)

 

[Booger weldz]

I am currently measuring my subwoofer with dayton audio umm 6 mic. But in REW its doesn't show any low frequency spl & it show good spl from 150hz..
I m not getting wether it a fault of mic or software..
If any buddy know something about this please let me know.

Your Settings in rew starting the measurement @ 150 hz ?

 

[maxolini]

 

[ctrlx]

OP, do you get a flat response with a loop-back test ?