[Elecraft] K4 -- Spectral subtraction noise reduction

[Grant Youngman]

You can’t really compare an NIR-12 to a more current implementation.  The KiwiSDR algorithm runs on a BeagleBone processor with virtually no discernible artifacts.  The artifacts were the achilles heel of the NIR-12.  I had one for a while.  Never liked it.

Presuming Elecraft delivers what they have said they’re working on, it will be a great addition to the radio.

Grant NQ5T

> On Sep 11, 2020, at 3:23 PM, Tom Doligalski via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Spectral subtraction was used in the JPS noise reduction units long ago. I still have my NIR-12. 
> 
> Tom W4KX
> 
> Sent from my iPad 
> 
>> On Sep 11, 2020, at 12:21 PM, Wes <wes_n7ws at triconet.org> wrote:
>> 
>> https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in.
>>