WhiteNoise

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.

Note: if a constant RNG seed is required, please use the Rand module.

Module Pack

Standard

ClassID

classID = 124

Type Definition

typedef struct _ModuleWhiteNoise
{
ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
FLOAT32 range;                                // Generated noise will be in the interval [-range +range].
awe_modRandInstance *rand; // Random number generator using a LCG algorithmawe_modTypeConversionInstance *int2flt; // Converts between numeric data typesawe_modScalerV2Instance *scale; // General purpose scaler with a single gain} ModuleWhiteNoiseClass;

Variables

Properties

Name	Type	Usage	isHidden	Default Value	Range	Units
range	float	parameter	0	1	-10:10

Pins

Output Pins


Name	out
Description	audio output
Data Type	float

Scratch Pins


Channel Count	1
Block size	48
Sample rate	48000

Matlab Usage

File Name: white_noise_module.m 
 M=white_noise_module(NAME, SR, NUMCHANNELS, BLOCKSIZE) 
 Creates a white noise generator for use in the Audio Weaver environment. 
 The module has a single multichannel output pin. 

 Arguments: 
    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.