lp.frrr~ Low-frequency noise Low-frequency noise is generated from a sequence of random values chosen at a constant rate slower than the sampling rate. In its simplest form, it functions as a noise generator passed through a sample-and-hold module. However, lp.frrr~ also allows the samples between the randomly generated values to be interpolated, either linearly or quadratically.	from the library : Litter Power Pro Package Format : External Environment : max / msp commercial Max 4.x http://www.bek.no/~pcastine/Litter/