Rerurn to Romy the Cat's Site


In the Forum: Horn-Loaded Speakers
In the Thread: Good midbass is complicated, if not unobtainable.
Post Subject: ExplanationPosted by Gargoyle on: 12/23/2015
fiogf49gjkf0d
 Romy wrote:
My question is: why in this picture the concept of Acoustic Power or Acoustical Watt can advance anything? I am not being sarcastic, I just truly do not know where to use it.


Sorry, I'm not trying to answer for Scott, but think of it this way, the resistance of air is nonlinear, but the calculations of wattage is usually done in a linear fashion, 100 watt amp plus 100 watt amp is 200 watt.

It is a parameter that you can apply to anything that produces sound, the electrical wattage is almost arbitrary and system dependent.

Now as far as what frequency for orchestra etc, one can surmise that 1 acoustical watt was more or less full band of whatever song they were playing during the test.
Just as the 100 acoustical watts (140db) cited for a turboprop aircraft taking off would be a combination of the frequencies made by the engine.

An engineer could then figure out how much wattage he actually needs to reproduce a turboprop taking off, based off of the acoustic power and the efficiency of his speaker combinations.
He could then place this system on a runway and ideally from some distance it will sound the same as a real airplane, minus the motion.

Rerurn to Romy the Cat's Site