In a discussion with another forum member there was some interest in seeing some measurements taken with Omni Mic, specifically the SPL tap and the use of the “C” weighting and the use of “none” for weighting.
What I did first was to make sure the subs were reading 75db with my Onkyo internal test tone.
Microphone was never moved and all measurements were taken at -20 master volume.
I than ran How To Train Your Dragon from 1:14:25 – 1:15:00. In the screen shots as “HT”.
This was done with all speakers and subs playing and then with just the subs playing.
Screenshots shots show with the “C” weighting and “none” weighting.
I also did this with the XBOX 360 game Mass Effect 3 when the ship goes through the Mass Relay. I know, I know but it was very easy to reproduce in a quick manner and I did not have any other “known” movies sitting around.PLEASE note that I could not catch the graphs fast enough in the screen shots but what was in question was the “Peak” and “Max” values.
Screen shots in order are: