Rerurn to Romy the Cat's Site

By distortion in the throat I mean distortion caused by the nonlinearitiy of air that manifest itself by high pressures.
I dont think this was known in those days.
If this makes any significant audible difference in this particullar case I dont know, but I wanted to compare a somehow comparable Tractrix with an Exponential, since there was some concern on  Jessies behalf regarding this.
Turbulence does not cause distortion as amplitude nonlinearities does, maybe it should be termed noise? Is this really a problem?

You are absolutely right that the conditions of the experiment can be questioned, and maybe comparing two horns of same volume or maybe same length would be more significant to our practices.
You can make the tractix to go as low as an Exponential, but then it would have a larger mouth diameter.
On the other hand in many cases the maximum allowable horn diameter can be the limiting factor and then the little AES paper is very helpful.

I agree  again, one cant predict how the result is really going to be unless you make the horn and listen to it in the intended set up etc. etc. but lets hope we are not completely blind and can make some reasonable predictions with our minds and whatever other means we have.

Rerurn to Romy the Cat's Site