Generate pink noise

The concatenation of multiple pink noise vectors does not result in pink noise. For streaming applications, use

`dsp.ColoredNoise`

.

Pink noise is generated by passing uniformly distributed random numbers through a series of randomly initiated SOS filters. The resulting pink noise amplitude distribution is quasi-Gaussian and bounded between −1 and 1. The resulting pink noise power spectral density (PSD) is inversely proportional to frequency:

$$S(f)\propto \frac{1}{f}$$

`dsp.ColoredNoise`

| `rand`

| `rng`