K509 — Computer Music Seminar: Assignment 6

Assignment 6: Max/MSP audio patching

Do the MSP Quickstart tutorials. (Ignore the “bliptrig” folder for now.) You don’t have to turn in any modifications of the Quickstart patches, but please do try changing them.
Design one patch that works as follows.
- Ring modulate audio input, either from a sound file or mic (or both), with a sine wave having an adjustable frequency. You can make a ring modulator simply by multiplying two audio-rate signals.
  See the MSP Quickstart for several ways to play sound files. Use the selector~ object to choose the input source.
- Set it up so that a MIDI controller (such as the mod wheel) adjusts the frequency of the sine wave.
- Run the output of the ring modulator into one or more delay lines with feedback, using one or more tapin~ / tapout~ pairs. (You could have one delay feeding the left channel, another the right channel.) Retain a direct connection between the ring modulator and the output, with a volume control that lets you vary the amount of the dry signal in the final output.
- Enable control of delay parameters (delay time, feedback) from sliders or number boxes, and from MIDI.
- If you’re on a roll, run one or more of the delays into a filter before sending it out to the world. Check out the onepole~, reson~, fffb~, and biquad~ filter objects. The biquad requires either a filtercoeff~ or filtergraph~ object to create its coefficients.