[Elecraft] The K4's new noise reduction

[Edward R Cole]

Shoot,  That my just be the tipping point for me toward  the K4.

73, Ed - KL7UW


From: Wayne Burdick <n6kr at elecraft.com>
To: Elecraft Reflector <elecraft at mailman.qth.net>
Cc: Elecraft-K4 at groups.io
Subject: [Elecraft] The K4's new noise reduction
Message-ID: <8FB0FAF5-8C7D-4E22-BBD5-4A06982E5060 at elecraft.com>
Content-Type: text/plain; charset=us-ascii

We've recently started testing a new DSP NR (noise reduction) 
algorithm for the K4. Our early testers are saying it's as good or 
better than anything else they've used, removing stochastic noise 
without the characteristic "hollow" sound of earlier algorithms. In 
my own tests, I'm finding weak SSB signals I simply couldn't copy 
without it. It goes beyond just reducing listening fatigue. This type 
of NR operates in the frequency domain, like spectral subtraction, 
but without the usual artifacts (musical tones) or long sampling delays.

Once the full implementation is complete, we'll post audio samples 
and additional details.

(In answer to the inevitable question:  Unfortunately, we won't be 
able to port this to the K3/K3S. The new algorithm requires the new, 
much faster DSP chip we're using in the K4.)

73,
Wayne
N6KR


73, Ed - KL7UW
   http://www.kl7uw.com
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