reich

reich.rb

require 'scissor_utils'

include ScissorUtils

filename = ARGV.shift
num      = 400
src      = Scissor(filename)
pitch    = ((src.duration * (num - 1)) / (src.duration * num)) * 100

save(
  (src * num).pan(0),
  (src * (num - 1)).pitch(pitch).pan(100)
);

scissor_utils.rb

require 'fileutils'
require 'pathname'
require 'scissor'

module ScissorUtils
  extend ScissorUtils

  def save(*tapes)
    executable = Pathname($0)
    dst_dir    = executable.dirname + ('_' + executable.basename.to_s)

    unless dst_dir.exist?
      dst_dir.mkdir
    end

    Scissor.mix(tapes, dst_dir + (Time.now.to_i.to_s + '.wav'), :overwrite => true)
  end
end