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Contents
module SPCore
# Produces a Gaussian window of a given size (number of samples).
# For more info, see https://en.wikipedia.org/wiki/Window_function#Gaussian_windows.
class GaussianWindow
attr_reader :data
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
end
end
Version data entries
9 entries across 9 versions & 1 rubygems