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(8.D.2.3) WhiteNoiseFract32

Overview

Uniformly distributed white noise generator

Discussion

Generates uniformly distributed random values at the sample rate, in the specified range. Internally, the module uses a random number generator and then scales the values into the proper range.

Type Definition

typedef struct _ModuleWhiteNoiseFract32 { ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure fract32 range; // Generated noise will be in the interval [-range +range] awe_modRandInstance *rand; // Random number generator using a LCG algorithm awe_modScalerFract32Instance *scale; // Linear multichannel scaler } ModuleWhiteNoiseFract32Class;

Variables

Properties

Name

Type

Usage

isHidden

Default value

Range

Units

range

fract32

parameter

0

0.9

-1:0.9999

 

Pins

Output Pins

Name: out

Description: audio output

Data type: fract32

Scratch Pins

Channel count: 1

Block size: 32

Sample rate: 48000

MATLAB Usage

File Name: white_noise_fract32_module.m

M=white_noise_fract32_module(NAME, SR, NUMCHANNELS, BLOCKSIZE) Creates a Fractional white noise generator for use in the Audio Weaver. The module has a single multichannel output pin. NAME - name of the module. SR - sample rate of the output NUMCHANNELS - number of interleaved channels in each output pin. BLOCKSIZE - number of samples per output channel.

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