Assignment 5 (due Thursday, June 12) is to use a pulse generator, a filter, and a reverberator to make an imitation of this famous bit of 1950s electronic music .

To do it:

• Make a pulse generator (which can just be variable-width Hann window also known as raised cosine). Its freqency should be controlled by a table and roam up and down, finally reaching a subsonic frequency such as 1 or 2 Hertz so you hear the individual pulses.
• Using vcf~ or otherwise, filter the pulses with a variable resonant frequency. This frequency also moves up and down but settles on an audible frequency, then wags around again to settle on another one. This frequency should be sample-and-held so that, when the above pulse gets very slow, the resonant frequency doesn't slide up and down during the resonance of an indicidual pulse.
• Make the "q" start at a "reasonable" value (5 or 10) but then increase to a few hundred once the fundamental frequency has settled at the subaudible frequency; this will make the resonances last longer and sound clearer.
• Put on a reverberator and change the mix between reverberant and dry so that the pulses get a time-varying "wetness".