Re: [K3] transmit equalizer settings

Posted by Jim Brown-10 on
URL: http://elecraft.85.s1.nabble.com/K3-transmit-equalizer-settings-tp4615446p4622883.html

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




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