STx 3.9 Documentation

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PEAKS - spectral peak picking

NOISE - noise generator

Usage:

NOISE TYPE A B

Inputs:

TYPE

type selection

A

minimum or average

B

maximum or standard deviation

Outputs:

Y

generated samples or white noise

Function:

This atom implements a sample generator for pseudo-random numbers (white noise) with linear or Gaussian distribution. An internal variable is used to set a unique starting number for each generator. To allow parameter modifications during signal generation, the inputs A and B can be changed for each generated sample.

Table 17: Noise generator parameters

value of TYPE

parameters

description

A

B

0 or LINEAR

minimum

maximum

Generate linear distributed random samples in the interval A..B. The value of A must be less than B.

1 or GAUSS

average

deviation

Generate Gaussian distributed random numbers with average A and deviation B (>0).

© 2009 The Austrian Academy of Sciences Acoustics Research Institute