Overlay two SPL "logging" measurements

[Alomor]

Hi, I have two SPL "logging" measurements (SPL meter -> logger), which are SPL vs time graphs. I wonder if I can overlay them like I do with "normal" frequency response measurements.
They are measurements of my car during driving, before and after the sound deadening; overlaying the graphs would allow for a quick comparison.
Thank you.

 

[John Mulcahy]

There isn't an overlay graph for SPL log files as the files have too many traces. You could drag them into Excel and compare the data there.