Weird roll off at 16khz?

[recaro19]

Hey everyone,

Wondering if someone can assist me with a weird issue. Had my measurements looked at and apparantly there is a really weird roll off at 16khz. I have no idea how this is happening but it is across all measurements i've taken.

My settings are 10hz to 22000hz so i'm lost. Image attached.

 

[billrobbo]

It may help if we know what equipment you are using, both your system and the measuring gear.

 

[John Mulcahy]

If there are significant delays through the system the end of the sweep may not be getting captured. If that is happening use the acoustic timing reference so REW can synchronise the capture.

 

[recaro19]

Hey fellas,

Thanks for getting back to me.

Equipment I used to make measurements:

- Sonarwerks XF Microphone
- 2014 late MacBook pro
- Komplete Kontrol Audio 6 soundcard.

 

[recaro19]

Where do i find this?

Is there a set up procedure or some set guidelines to using it or just an activational thing where i check a box?

 

[John Mulcahy]

Measuring with a timing reference.

 

[recaro19]

Measuring with a timing reference.

Which should i choose for accurate measurements? I have no idea what any of this means....lol

 

[John Mulcahy]

Select the acoustic timing reference option on the Measure dialog and choose one of your main speakers as the timing reference output.

 

[recaro19]

got it! Thanks John!