I’m a bit of a space nerd (see my avatar). One of the things I collected along the way was an old NASA paper from when they were designing acoustic suppression for the Saturn V rocket. An item included in the paper is the graph below which is measurements from an early test of the rocket’s first stage.
The question I’ve always had (kind of why I’m posting) is how would you even measure this? If I recall my fundamentals correctly, it’s beyond the limit of “sound” and basically into “continuous explosion” territory.
Could it be simple as. The measurement scale is Sound Power Level = P , SWL, LWA
Witch can go beyond or higher than the more normal Sound Pressure Level = p , SPL,LPA that is used in the normal field of sound.
That has the mentioned limit and sound power level can go much much higher without limits…?
And by different measurement results, scales, math and physics.
Yes As the simple answer on earth and in average atmospheric pressure.
And no. Changing one of those. You get more pressure as measured in db.
Since the physics are involved db’s can go way go beyond.
