Bedrummer

Motivation

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)