[Elecraft] Psychoacoustics and Simulation

[Jim Brown]

On Mon, 31 May 2010 22:38:30 -0400, Bill Tippett wrote:

>In 1994 he unveiled the Bose
>Auditioner program, a software tool that allows acoustic engineers to
>hear precisely what a proposed audio system will sound like from any
>seat in a large venue even before building construction begins.

>On the day that Jacob unveiled the project, Bose admitted that he
>hadn’t expected it to succeed. “He let me work on that with a team of
>five engineers for 10 years—most of the time thinking that it was
>impossible,” Jacob says, shaking his head in disbelief.

I've known Ken for many years. The Bose Auditioner was used as a 
marketing tool, and for most of its life, could only be used with Bose 
loudspeakers. As a marketing tool, it has been successful. As a design 
tool for system engineers, it has not.  

Two of my colleagues in Berlin, Dr. Wolfgang Ahnert and Stefan 
Feistal, developed acoustic modeling software for sound systems in 
rooms, beginning around 1985. It was well deveoped and in its second 
version by 1990, and by 1994 it had auralization capabliity. That 
software is called EASE. It has always been open for all loudspeaker 
manufacturers to provide the carefully measured data required. 
Currently at version 4.3 with V 5 in development, EASE is pretty much 
the standard for system design and acoustic modeling worldwide. I've 
been a Beta tester since 1990. 

http://afmg.eu/index.php/company.html

73,

Jim K9YC