(8.D.2.4) BiquadLoadingFract32
Overview
Simulates loading of biquad fract32 filters
Discussion
This module is used for CPU load testing purposes and implements a large number of cascade Biquad fract32 filters. At instantiation time, you specify MAXSTAGES - the maximum number of filter stages that you would like to simulate. Then at run-time you can vary the number of filters running from 1 to MAXSTAGES. This makes the CPU work harder since more filter stages are running. Internally, the module uses a BiquadCascadeFract32 module to implement the filtering.
Note that if the filter is connected to a multichannel input, then the module implements numChannels * numStages filters. That is, the number of filters is scaled by the number of channels processed.
Type Definition
typedef struct _ModuleBiquadLoadingFract32
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
INT32 maxStages; // Maximum Biquad fract32 stages that can be run
INT32 numStages; // Number of Biquad fract32 stages currently running
awe_modBiquadCascadeFract32Instance *filt; // Cascade of second order Biquad filters
} ModuleBiquadLoadingFract32Class;
Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
maxStages | int | const | 0 | 100 | 1:100 | Â |
numStages | int | parameter | 0 | 1 | 1:100 | Â |
Pins
Input Pins
Name: in
Description: Audio Input
Data type: fract32
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real
Output Pins
Name: out
Description: Audio output
Data type: fract32
MATLAB Usage
File Name: biquad_loading_fract32_module.m
M = biquad_loading_fract32_module(NAME, MAXSTAGES)
Module which simulates the loading of N series biquad fract32 stages. The
module is used for profiling and demonstrations of the computational
capabilities of processors. Arguments:
NAME - name of the module.
MAXSTAGES - maximum stages that will be tried (this is used for
memory allocation and is set to 100 by default).
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