RTA graph freq resp on REW 5.20.13

[caseopia]

Hi John,need some advice

i took measurement using umik-1 and rew 5.20.13 on my right tweeter. But the graph won't drop under 1 Khz
instead it rise like crazy on 50 Hz - 100 Hz
then i uninstal and get the old version rew 5.19 same umik-1 mic and same tweeter to measure.
it came normal, the graph drop at 3Khz nothing left under 3 Khz. Can you advice me John? Thank you.

 

[John Mulcahy]

Can you post some screenshots? What test signal are you using?

 

[Nordo]

Hi John,need some advice

i took measurement using umik-1 and rew 5.20.13 on my right tweeter. But the graph won't drop under 1 Khz
instead it rise like crazy on 50 Hz - 100 Hz
then i uninstal and get the old version rew 5.19 same umik-1 mic and same tweeter to measure.
it came normal, the graph drop at 3Khz nothing left under 3 Khz. Can you advice me John? Thank you.

I recently did some speaker testing (for crossover design) using a UMIK-1 and the latest version of REW.
SPL graphs were normal and what was expected - i.e. no anomalies.
Make sure all your settings in REW are correct. Read Making Measurements in the REW help
In particular, don't use the subwoofer signal unless you are testing a true sub.

 

[caseopia]

Can you post some screenshots? What test signal are you using?

Using pink noise,play from source unit (head unit) car audio.

 

[John Mulcahy]

Perhaps an issue with the pink noise filtering if it was sourced from REW, depending on what settings you were using. There are some fixes in that area in the V5.20.14 early access build.

 

[caseopia]

Perhaps an issue with the pink noise filtering if it was sourced from REW, depending on what settings you were using. There are some fixes in that area in the V5.20.14 early access build.

Yes John, V5.20.14 great.My pink noise measurement graph back normal.

Thanks