Signal filtering
This example shows how to filter signal by using "Remez exchange algorithm" filtering method from the Julia DSP package. DSP package includes many other filter types and methods.
You will have to install DSP package before using this example.
using DSP
function process( input_windows::Array{SigviewWindow}, output_signal::SigviewSignalWindow )
#create passband filter 1100-1900Hz
remez_filter = remez(35, [(0, 1000)=>0, (1100, 1900)=>1, (2000, input_windows[1].samplingRate/2)=>0]; Hz = input_windows[1].samplingRate )
#apply filter to the samples of the first input signal
output_signal.samples = filt(remez_filter, input_windows[1].samples )
#take all other signal properties from the input signal
output_signal.samplingRate = input_windows[1].samplingRate
output_signal.xAxisBegin = input_windows[1].xAxisBegin
output_signal.xAxisUnit = input_windows[1].xAxisUnit
output_signal.yAxisUnit = input_windows[1].yAxisUnit
return true
end