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.