2016-01-19, 06:41
(This post was last modified: 2016-01-19, 06:45 by David.Gamble.)
I live in central Victoria (Australia) and am some what bandwidth constrained. I keep the gain down but still manage to pick a lot of strokes in the 500 to 1000 km range.
It occurs to me that most of the junk signals are due to powerline noise (50/60 hz), electric fences, UHF military transmissions, and the odd axle welding plant. If the wave form is converted to the frequency domain (FFT) it is very easy to design a very narrow band filter to get rid of the junk. then forward the FFT to the server for processing. I am not sure how this would work with the stroke picking algorithms but it may be worth considering.
It occurs to me that most of the junk signals are due to powerline noise (50/60 hz), electric fences, UHF military transmissions, and the odd axle welding plant. If the wave form is converted to the frequency domain (FFT) it is very easy to design a very narrow band filter to get rid of the junk. then forward the FFT to the server for processing. I am not sure how this would work with the stroke picking algorithms but it may be worth considering.
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