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From: keller@uicsl.UUCP
Newsgroups: net.audio
Subject: Re: Fletcher-Munson curves obsolete? - (nf)
Message-ID: <2700008@uicsl.UUCP>
Date: Mon, 26-Mar-84 20:58:00 EST
Article-I.D.: uicsl.2700008
Posted: Mon Mar 26 20:58:00 1984
Date-Received: Wed, 11-Apr-84 01:16:16 EST
References: <273@opus.UUCP>
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Nf-ID: #R:opus:-27300:uicsl:2700008:000:602
Nf-From: uicsl!keller    Mar 26 19:58:00 1984

#R:opus:-27300:uicsl:2700008:000:602
uicsl!keller    Mar 26 19:58:00 1984

From my Crown IC-150A preamp manual:

"The work of two research teams has been widely accepted throughout the
audio field. The findings of Fletcher and Munson (1933) has been used as a
basis for loudness compensation for many years. More recently, the I.S.O.
(International Standards Organization) has accepted the work of a second
team, Robinson and Dadson (1956), as being more accurate. As a result, the
trend in the audio industry is to use the I.S.O. curves as a basis for
loudness compensation."

My Crown equipment has worked flawlessly for 8 years, but would anyone
choose Crown today?

-Shaun