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LF: Re: Re: Morse tones / filters etc.

To: [email protected]
Subject: LF: Re: Re: Morse tones / filters etc.
From: "John Rabson" <[email protected]>
Date: Mon, 22 May 2000 18:45:26 +0100
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
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----- Original Message -----
From: Kevin Ravenhill <[email protected]>
To: LF Group <[email protected]>
Sent: Monday, May 22, 2000 9:01 AM
Subject: LF: Re: Morse tones / filters etc.


Has anyone experimented with phase shifted / delayed audio, i.e. with
"raw"
audio fed to one half of the headphones and a (variably) phase-shifted /
delayed version fed to the other half?
This reminds me of the Sterocode processor developed by G6CJ and (I think)
G3OTK, which was written up in September 75 RadCom. This unit took a mono
output from the receiver and produced a pseudo-stereo output to feed to a
suitable pair of headphones. It worked quite well on top band and even
helped on 80 m SSB in the evening when it appeared to spread out TV time
base QRM across a perceived range of directions of about 90 degrees . The
speech seemed not to be spread out so much. This is all highly subjective,
but it did seem to do something useful.

73 de
John Rabson G3PAI





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