From CCRMA Wiki
Homework #2: "Generative Clouds"
In this assignment, you are to create a live generative musical system in ChucK, defining its parameters and creating a piece of music using the system (via real-time high-level input).
Due date: 2009.2.23 11:59:59pm (or thereabout), Monday.
Tools at your disposal
- keyboard, mouse
What to do:
- create a software system in ChucK that generates music "automatically" or "semi-automatically" (i.e., with limited "high-level" human interaction)
- use some of the synthesis elements we talked about (e.g., SinOsc, TriOsc, SqrOsc, Noise, Impulse, Step, ResonZ, OnePole, OneZero, BiQuad, LPF, HPF, ADSR, etc.)
- (optional): use audio analysis as a control for the synthesis (e.g., using ChucK Unit Analyzers)
- here are some example ideas (you can use, combine, extend these, or go with something else altogether)
- modeling playing style of a particular instrument, or a group of instruments ("real" and/or imagined)
- model a particular compositional style (e.g., "classic" Musique Concrete, a certain approach to minimalism)
- leverage or musically sonify a mathematical model or a computer algorithm
- a system that somehow evolves over time, giving a set of starting parameters
- invent something new/crazy!
- figure out what parameters you want to expose/export from your system, these parameters might serve as "seeds" or starting points, or guidelines/rules for your music generator to follow
- it might be helpful to design/partition your system into modules that you can exert independent control over, or that take care of different types of tasks/sounds in the system
- create/perform a composition using your system, paying attention to overall form, density, and texture throughout (think "sonic clouds"...)
Not all of these are directly relevant, but may serve as basic building blocks...
- for mapping your keyboard/mouse to your generative clouds S.M.E.L.T.
- Graham Coleman's most excellent tutorial on ChucK for Music
- ChucK unit generator reference (check out the section on STK instruments, as potential starting points for ready-to-go instruments)
- ChucK examples
- In particular, look at the examples under "STK". These might serve as ideas or starting points.
- mand-o-matic2 : caffeinated virtual mandolin player (note: by itself, this example probably isn't very interesting (for example, it doesn't come from or go anywhere). However, by figuring out the parameters, and varying those over time somehow, and/or by arranging it with other "band members", one can use this as a building block.)
- shake-o-matic : virtual shaker player, again a potential building block.
- karp-o-matic : virtual stif karp player.
- wurley : virtual wurlitzer player.
As usual, turn in all files by putting them in your Library/Web/220b/ directory.
- 1) hw2.html should go into the 220b directory
- 2) create a hw2/ directory, and put all the stuff below in there:
- 3) all related source/sound files (.wav/.ck)
- 4) a short README text (readme.txt) file that:
- specifies instructions on running your programs
- describes your process/adventure, and perhaps the ideas (technical/aesthetic) behind the composition
- gives credit, if needed, for the sounds you are using
- describe any difficulties you encountered in the process
Have fun with it!