1st measurement -- discrepancy in input dB level and SPL on graph ?

[noviygera]

Hello!

in my 1st measurement (using UMIK) I am confused:

The actual input level is 77.19 dB but the graph window shows my curve to be around 60 to 65 dB.
What is the reason for that and how to I get the graph to show the actual reading?

thanks!

 

[John Mulcahy]

That is the actual reading. The SPL figure in the levels panel is the total input across all frequencies, the level of any individual frequency will be lower. The "Adjust RTA levels" option in the Appearance controls shifts things to show a graph closer to that a sweep at the desired level would produce. Check the help for more detail.

 

[noviygera]

Thank you!