That's alright, no worries. I mean I'm not expecting RayDunzl to have to go through and correct his shoutometer with air absorption, (he can if he wants of course), but it is a significant effect which is why I brought it up.@Robbo99999 I see your point now, I was too fast in my response. Basically you propose a substantial correction to the Shoutometer. My conclusion is that you made relevant correction to the Shoutometer that still serves its intended purpose.