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Re: AM Audio Processors
To: CRTech <crtech@crtech.org>
Subject: Re: AM Audio Processors
From: Willie Barnett <wbradiolists@gmail.com>
Date: Fri, 20 Jul 2018 11:22:38 -0400
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Just a handful of thoughts from a "former" AM guy of 20 years. :) (It's still in my blood, tho!)

I wouldn't decrease the high end bandwidth like that. It helps with speech clarity to keep those highs out to 9KHz or so. There really isn't much "power" in the highs, either. Depending upon the radio, those highs will help with intelligibility.

You COULD reduce the low end a few DB, tho. THAT is where POWER is really wasted, considering that the VAST MAJORITY of AM listening isn't done on hi-fi systems with big woofers. ;) Anything below ~50Hz, for example, is really unnecessary for talk formats. A slope-off, rather than a brickwall, is good. Too much bass makes talk sound too muddy.

Willie...


On Wed, Jul 11, 2018 at 6:29 PM, RADIO DOCTOR <lylehenry@fastmail.fm> wrote:

I'm also wondering if it would make sense to cut the audio bandwidth in half from the 9200, say 4.5kHZ instead of 9-ish to stop wasting modulation on frequencies that almost no receivers except the modulation monitor can pass?
Follow-Ups: Re: AM Audio Processors
(RADIO DOCTOR <lylehenry@fastmail.fm>, 22 Jul 2018 23:12:18 -0000)
References: AM Audio Processors
(Tom Van Gorkom <tomvangorkom@gmail.com>, 11 Jul 2018 19:16:24 -0000)
Re: AM Audio Processors
(Mark Carol Bohnett <mbohnett43@bevcomm.net>, 11 Jul 2018 21:53:21 -0000)
Re: AM Audio Processors
(JIm Turvaville <jimturbo61@yahoo.com>, 11 Jul 2018 21:56:54 -0000)
Re: AM Audio Processors
(RADIO DOCTOR <lylehenry@fastmail.fm>, 11 Jul 2018 22:30:07 -0000)
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