[Elecraft] [K3] transmit equalizer settings

[Jim Brown]

On Tue, 23 Feb 2010 15:05:11 -0600, Grant Youngman wrote:

>There is plenty of research around that demonstrates that infrasonic content
>between 20-80Hz contributes to a less tiring listening environment,

Please cite that research. I'm sure that psychoacoustic professionals would 
love to hear of work in direct contraction to nearly a century of published 
research to the contrary. 

>adds to presence and realism 

There is NO content in human speech below 80 Hz. All that spectrum consists 
of microphone defects (breath pops, mechanical noise) and room noise.

>(the sense you're not listening or talking to the world
>through a 1940's telephone set) and contributes to improved intelligibility 
>in certain consonants, especially among male speakers.

FALSE! As a consultant in the design of sound systems for large and small 
public spaces for 25 years, particularly spaces with difficult acoustics, 
this is something I've had to learn a lot about. :) The science in this area 
is not new, and it's been quite well understood for half a century.

73,

Jim Brown K9YC
Fellow Audio Engineering Society
Member Emeritus Acoustical Society of America