class SPCore::GaussianWindow
Produces a Gaussian window of a given size (number of samples). For more info, see en.wikipedia.org/wiki/Window_function#Gaussian_windows.
Attributes
data[R]
Public Class Methods
new(size)
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# File lib/spcore/windows/gaussian_window.rb, line 6 def initialize size @data = Array.new size sigma = 0.4 # must be <= 0.5 size.times do |n| a = (n - (size - 1) / 2) / (sigma * (size - 1) / 2) @data[n] = Math::exp(-0.5 * a**2) end end