Graph Axis Limits

[mkane]

I have my numbers all messed up and can't even find my measurements. Could a kind soul get me in the ballpark with some top/bottom/left/right numbers please. & thanks

 

[AudiocRaver]

a common set of graph limits for frequency response measurements with REW is
10 Hz to 22 kHz
45 dB to 105 dB

 

[mkane]

Thanks for the reply. When I push on the EQ legend ant the top of the page and set some values when I go to look at the chart they only show a portion of the chart. I have the axis limits so far off the charts don't' show.

 

[mkane]

When I try and retrieve a file to load to EG it says the format is wrong. Long learning curve here sorry. Is it mdat, filters settings, All files?

 

[mkane]

Think I've figured out which file it likes. XML files seems to work. Still haven't got the axis boundary figured out yet

 

[mkane]

I never have enough headroom to get a clean measurement. What to do. Help appreciated.

 

[AudiocRaver]

Headroom: Is your SPL calibration done? Are you using a UMIK-1 USB mic (mic gain is in the calibration file, no calibration needed)? Or a regular XLR mic with audio interface (manual calibration is necessary)?

Measurements are typically done between 75 dB SPL (conversation level) and 85 dB SPL (quite loud, but not uncomfortable). Even with variations, most room freq responses don't go above 90 or 95 dB, you should see 10 dB of headroom.

Do you have an .mdat file you can attach? (you might need a few more posts before they'ss let you attach a file)

 

[mkane]

How does this look? Yes using UMIK mic. Finally figured the mic gain after 3 days thanks. Here's a couple of files. Thanks for hanging in the r. Johns been helping out on another thread i started.

 

[AudiocRaver]

When you save a Room EQ Wizard file with measurements it will have a .mdat extension. Do you have one of those you can attach?

 

[mkane]

Like this. I deleted the upload because the format wasn't right.