09c Brownian Pitch Walk

Description

Here we explore a different type of randomness inspired by brownian motion. Max's  drunk object implements a drunk random walk. Instead of choosing the pitch at random, we choose the next interval randomly. The two arguments to the dunk object are pitch range (128) and max step size (3). That is a random pitch in the range is chosen as a starting point and the next interval is chosen at random from -2, -1, 0, +1, or +2. The random interval is shown at the bottom of the patcher. An expr object and int object are used to calculate each random interval using the formula NextPitch ($i1) – CurrentPitch ($i2).

Objects

• drunk
• expr
• int
• makenote & noteout
• metro
  

Further Reading

• Wikipedia, Random Walk
• Wikipedia, Brownian Motion