https://vimeo.com/46034274

noisy_typer.rb

# noisy_typer.rb ~/Downloads/hammerhead_drum_sounds/*909*.wav
require "mac-event-monitor"
require "shellwords"

class NoisyTyper
  def initialize(files)
    @files = files
  end

  def monitor
    m = Mac::EventMonitor::Monitor.new
    m.add_listener(:key_down) do |e|
      system("afplay %s &" % Shellwords.escape(@files[e.keycode % @files.size]))
    end
    m.run
  end
end

def main
  nt = NoisyTyper.new(ARGV)
  nt.monitor
end

main