[Elecraft] K4 -- Spectral subtraction noise reduction

[Wes]

https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in.

Wes N7WS



On 9/11/2020 6:32 AM, Kurt Pawlikowski wrote:
> Grant,
>
>     You peaked my interest. I attempted to find examples of spectral 
> subtraction and only found talks about it (no audio examples). Would you 
> happen to know where I might find some examples? Maybe comparing results 
> between several noise reduction methods?
>
>     Thanks!
>
>     kurtt WB9FMC
>
> On 9/10/2020 11:19 PM, Grant Youngman wrote:
>> I’ve recently been exploring quite a few of the many SDR receivers on 
>> KiwiSDR.  One of the (many) features of this system is an option to select 
>> spectral subtraction NR.
>>
>> I’m now really hyped about the fact that this will be available at some point 
>> on the K4.  It works exceptionally well.  So well, that I leave it turned on 
>> most of the time.  Often, stations you can barely copy down in the junk 
>> literally pop up out of the noise.  Don’t know if this will be available at 
>> initial shipment, but it’s certainly something to look forward to if not.  
>> I’ve only tried it on AM and SSB at this point, so not sure about CW.
>>
>> Just something else to whet the appetite for that eventual “you’re up” email 
>> from Elecraft sales …  :)
>>
>> Grant NQ5T
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