Overview
DC Blocking Filter
Discussion
DC Blocking filter. The module supports multi-channel
Type Definition
typedef struct _ModuleDcBlock
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
FLOAT32 fc; // Cut on freq for highpass filter
FLOAT32 coeff; // coefficents for dc blocking filter.
FLOAT32* filterStates; // State variable, 1 per channel
} ModuleDcBlockClass;
Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
fc | float | parameter | 0 | 0.1 | 0:20 | Hz |
coeff | float | derived | 1 | -1 | Unrestricted | |
filterStates | float* | state | 1 | [1 x 1] | Unrestricted |
Pins
Input Pins
Name: in
Description: Input signal
Data type: float
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real and Complex
Output Pins
Name: out
Description: Filterd Output signal
Data type: float
MATLAB Usage
File Name: dc_block_module.m
M = dc_block_module(NAME) Implements a 1st order DC blocking filter. Arguments: NAME - name of the module