Scissor.sequence example

beats.rb

require 'scissor'

# original
# http://beatsdrummachine.com/

def main
  @kits = {
    :b => tape('house_2_1.wav'),
    :s => tape('roland_tr_909_2.wav').pan(60),
    :h => tape('house_2_5.wav')      .pan(20),
    :c => tape('big_beat_5.wav')     .pan(90),
    :d => tape('house_2_2.wav')
  }

  verse = [
    sequence('b  b   b  b     '),
    sequence('    s       s   '),
    sequence('  h   h   h   h '),
  ]

  chorus = [
    sequence('b  b   b  b     '),
    sequence('    s       s   '),
    sequence('hhhhhhhhhhhhh   '),
    sequence('    cc c  c c   '),
    sequence('             d  '),
  ]

  (mix(verse, 'verse.wav') * 4) + (mix(chorus, 'chorus.wav') * 4) >> 'result.wav'
end

def mix(tracks, filename)
  Scissor.mix(tracks, filename, :overwrite => true)
end

def tape(basename)
  # http://beatsdrummachine.com/hammerhead_drum_sounds.zip
  Scissor(File.expand_path('~/Downloads/hammerhead_drum_sounds/' + basename))
end

def sequence(seq)
  Scissor.sequence(seq, 60.0 / 105 / 4).apply(@kits)
end

main