Music 220a - Homework 3: Physical Model and Sampler Duo Performed by Algorithms

Chuck Files / Misc Files

Generated Wave File: Devil Computer Dubstep

Description

While I initially started with a sample loop panned one direction and a physical model panned the other, I decided that the sample loop--a recording of me beatboxing-- would be better utilized as a backbeat over both channels. The piece uses two physical models, a moog and a brass instrument, over a sample of beatboxing. In order to achieve a dubstep-like effect, I attempted to emulate a bass instrument (i.e. tuba) in the brass, with a certain vibrato to achieve wobble, and created a bass line using the logistic algorithm. The bass solo's over the beat, which itself was sampled randomly from points within the initial recorded sample of me beatboxing, until the "drop," when all three instruments play together. After that, the "melodic line" in the moog is presented on its own over the beat--created by a combination of sinusoidal and logistic algorithms to determine which notes to play--until another "drop" reintroduces the bass. Finally, the two take turns alternating until the classic ending takes over where one by one voices drop out. The partitioning of the piece is achieved through case-based selection of which to play and which not to play at any given moment. The result is a pretty demonic computer hemiola dubstep. Check it out! "Dubstep is so easy, even computers can do it." -DJ John Cage