[Elecraft] NoiseNuller Sidetone Latency

David Gilbert ab7echo at gmail.com
Sun Aug 2 00:44:32 EDT 2026



I think I have fixed the sidetone latency problem (the time between you 
pressing a paddle lever and the time you hear the sidetone from the 
computer) in my NoiseNuller application, but I'd like some second 
opinions on that.  You don't need diversity reception to do it ... just 
a standard 1/8" stereo audio cable from the Line Out of the rig to the 
Line In of the computer sound card.  It's literally the exact same cable 
connection you would use for FT8 reception. You don't need a source of 
local noise to test the latency.

NoiseNuller even has some usable spectral noise reduction in addition to 
the (better) spatial noise reduction, but the spectral noise reduction 
works with just one receiver.

If anyone is willing to help me check out the latency, send me a reply 
off list and I'll send the latest version of the application along with 
a quick description on how to use it.

73,
Dave   AB7E




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