Re: [Elecraft] K4 -- Spectral subtraction noise reduction

2020-09-11 Thread John Stengrevics
And, it will work on digital modes. John WA1EAZ > On Sep 11, 2020, at 6:30 PM, Grant Youngman wrote: > > 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

Re: [Elecraft] K4 -- Spectral subtraction noise reduction

2020-09-11 Thread 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

Re: [Elecraft] K4 -- Spectral subtraction noise reduction

2020-09-11 Thread Tom Doligalski via Elecraft
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 wrote: > > https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes > in. > > Wes N7WS > > > >> On 9/11/202

Re: [Elecraft] K4 -- Spectral subtraction noise reduction

2020-09-11 Thread 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

Re: [Elecraft] K4 -- Spectral subtraction noise reduction

2020-09-11 Thread Kurt Pawlikowski
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

[Elecraft] K4 -- Spectral subtraction noise reduction

2020-09-10 Thread Grant Youngman
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 we