White Noise Generator

white_noise.rb

=begin
  White Noise Generator
  http://en.wikipedia.org/wiki/White_noise

  Generates a .wav file with random noise.
  Copy to phone, and run on loop.

  `gem install wavefile`
=end

require 'wavefile'
include WaveFile

format = Format.new(:mono, :pcm_16, 44100)
data   = 1000000.times.map { rand(65535) }
buffer = Buffer.new(data, format)

Writer.new("noise.wav", format) do |writer|
  writer.write(buffer)
end