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  • People like playing drumlines in any kind of surface. Beds, tables, etc.
  • There exists realtime equalizers and such that can identify the attack of certain (different) sounds
  • People like rockband and such, and it could be used for a game like that, as well.


  • Grab the stereo input of two microphones. I.E.: one for the feet and one for the bed.
  • Record the sound of each "part" of the drumming thing.
  • Analyze the spectrum of the attack of each instrument, and the background noise too.
  • Use a frequency-thing to work on (like some software that comes with ubuntustudio that has a delay dependant on frequency - can't remember the name) and generate MIDI notes with that.


  • Latency: Besides the latency of the sound input, sound has to be frequency-analyzed and then analyzed for attack, to make it happen. Even though, it could be useful.



List of what Puredata could do to achieve the bedrummer:

  • Filter with the [lop~] and [hip~] objects
  • Detect attack, pitch and gain with [fiddle~]
  • Convert ranges of values with [+ ], [- ], [* ], [/ ], [int], [clip] objects
  • Assign pitch, velocity to ranges of notes or note/vel
  • Create enveloppes with [line~] and [vline~]
  • Create unique sounds, play one shot samples, apply effects with [plugin~](ladspa), make unique fx units within pd and/or
  • Output Osc and/or
  • Output Midi
  • Do that for each input (unlimited mics)
  • Make a system to calibrate all this (almost all of these objects can receive arguments in realtime)
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