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 _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 algorithm
awe_modTypeConversionInstance *int2flt; // Converts between numeric data types
awe_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 | range |
Pins
Output Pins
Name: out
Description: audio output
Data type: float
Scratch Pins
Channel count: 1
Block size: 32
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.