| Copyright | (c) Matthew Donadio 2003 |
|---|---|
| License | GPL |
| Maintainer | m.p.donadio@ieee.org |
| Stability | experimental |
| Portability | portable |
| Safe Haskell | Safe |
| Language | Haskell98 |
Numeric.Random.Spectrum.Purple
Description
Function for purple noise, which is differentiated white noise
This currently just does a simple first-order difference. This is
equivalent to filtering the white noise with h[n] = [1,-1]
A better solution would be to use a proper FIR differentiator.