MMJ4M 13: Audio Playback and Pitch Tracking

In Chapter 13, “Audio Playback and Pitch Tracking” of VJ Manzo‘s book Max/MSP/Jitter for Music, I learned how to:

  • Playback pre-recorded sound files with the sfplay~ object (including the open message and a toggle to make it go)
  • Open sound files directly by giving their full name in the open message
  • Use the ezdac~ object to get the sound out and use the gain~ object to control volume
  • Use message boxes to restart the sound file or jump to specific times in the file
  • Set keyboard controls to start/stop/rewind the sound file
  • Loop the sound file with a loop $1 message
  • Have more than one sound file open and playing at a time
  • Record the audio with the sfrecord~ object (and toggle it on and off, as well as specify the number of channels to record)
  • Convert frequencies to MIDI values with the fzero~ object


  • Max/MSP/Jitter for Music, Ch. 13: Audio Playback and Pitch Tracking (13 exercises)
  • Patches can be downloaded from (Dead Link)
  • UPDATED LINK: Patches can now be downloaded from
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