Fast Noise Source

Similar to the Noise Source block, except it uses less CPU by pre-generating a pool of random variates taken from the specified distribution. At runtime, samples are then uniform randomly chosen from this pool which is a very fast operation.

Supports output of type complex, float, int, short

Parameters

Noise Type

The random distribution to use, only Gaussian and Uniform are supported

Amplitude

The standard deviation of a 1-d noise process. If this is the complex source, this parameter is split among the real and imaginary parts

Seed

Seed for random generators. Note that for uniform and Gaussian distributions, this should be a negative number.

Variate Pool Size

Number of samples to pre-generate