Posted by Herbert König on Aug 20, 2009; 8:24pm
URL: https://forum.world.st/squeak-dev-Inquiry-Etoy-or-other-Projects-in-Physics-specifically-acoustics-tp84603p84607.html

Hi,

AR>> Please do! This looks very cool. I'd like to play with it myself.
HK> I'll let you know.
finally found the time to prepare it a bit.

So this is a dipole radiator simulation. A dipole radiator comprises two
speakers driven at so low frequencies that they act as point sources
without directivity.

The model calculates the interference of the two sound waves depending
on direction and frequency. Both speakers are assumed to radiate the
same frequencies.

To support it a bit there are the classes "SignalPlotter" expanding
on some test method in FFT and a logarithmic scale morph subclassed
from ScaleMorph.

All classes have comments and examples on the class side and you can
ask me. SignalPlotter's class side sampleContourPlot is the most
illustrative example.

I did it in 3.8.2 and tested in 3.10.2.

BTW it's even more fun doing this in reality but complicated to
understand if you don't have enough space around.


Cheers,

Herbert                            mailto:[hidden email]