AES Convention Papers Forum: Comment by Gary Eickmeier on "Effects of Loudspeaker Directivity on Perceived Sound Quality - A Review of Existing Studies"

Sat, 02 Jul 2011 15:26:00 -0600

Title: Effects of Loudspeaker Directivity on Perceived Sound Quality - A Review of Existing Studies
Paper 7745; AES Convention 126; May 2009
Comment by: Gary Eickmeier

The authors say that they will be doing future studies of radiation patterns and speaker positioning and would welcome input from the membership. Sigfried Linkwitz has challenged the membership to find the ultimate radiation pattern, speaker positioning, and room characteristics for stereophonic reproduction. I wrote a paper in October of 1989 that did not get published that answers all of these questions, and I would like to have my suggestions included in any future studies, but there is no directory of members' Email addresses so I can talk to anyone.

My paper was "An Image Model Theory for Stereophonic Sound", preprint 2869,

http://www.aes.org/e-lib/browse.cfm?elib=5825

and it gives the basis for the selection of "The Big Three" (radiation pattern, speaker positioning, and room acoustics) and my resultant choice for all three. The importance and urgency to communicate my suggestions is that others may not have considered my Big Three in any testing, and the problem is that if you get any one of them wrong, the whole image collapses and you would not know how close you are to the answer.

The paper proposes a different way of looking at stereophonic sound (the realistic reproduction of auditory perspective) that has been hinted at in previous work but never completely solved. I wish to correspond with whoever might be interested. I consider this a most important topic, and one of the last questions to be answered in audio engineering.

Gary Eickmeier

AES Convention Papers Forum: Comment by Ask Kaereby on "How Much Gain Should a Professional Microphone Preamplifier Have?"

Tue, 15 Mar 2011 07:05:19 -0600

Title: How Much Gain Should a Professional Microphone Preamplifier Have?
Paper 7999; AES Convention 128; May 2010
Comment by: Ask Kaereby

Interesting and good work on finding the necessary standard gain range - could you provide pointers to where the results may be found?

AES Convention Papers Forum Comments

AES Convention Papers Forum: Comment by Gary Eickmeier on "Effects of Loudspeaker Directivity on Perceived Sound Quality - A Review of Existing Studies"

AES Convention Papers Forum: Comment by Ask Kaereby on "How Much Gain Should a Professional Microphone Preamplifier Have?"