Component: Filter (DSP)

Author	Matrix Ltd
Version	1.2
Category	DSP

Filter component

Filter component to allow basic filtering to be performed Filters include: LowPass, HighPass, BandPass, BandStop, FIR, IIR

Examples

Example of the filter component set up to create a low pass filter.

File:LowPassFilter.fcfx

Low pass filter running at a low frequency

Low pass filter running at a high frequency

Downloadable macro reference

Filter

Performs the filter operation to the contents of the entire buffer in one go.

Parameters

This macro has no parameters

Return value

This call does not return a value

FilterTick

Performs the filter operation to the current value in the buffer.

Parameters

This macro has no parameters

Return value

This call does not return a value

Simulation macro reference

This component does not contain any simulation macros

Property reference

Buffer Manager

This property is of type Fixed list of ints and can be referenced with the variable name buffer_manager.

Determines which buffer manager component to refer to

Input

This property is of type Fixed list of ints and can be referenced with the variable name input_a.

Specifies the input buffer which will pass values into the filter

Output

This property is of type Fixed list of ints and can be referenced with the variable name output_c.

Specifies the output buffer which will store values from the filter

Type

This property is of type Fixed list of ints and can be referenced with the variable name type.

Specifies the filter type created by the component

Coefficient 0

This property is of type Signed integer and can be referenced with the variable name coef0.

No additional information

Sample Rate

This property is of type Floating point and can be referenced with the variable name sample_rate.

Sample frequency used to work out some basic useful calculations

Nyquist Frequency

This property is of type Floating point and can be referenced with the variable name nyquist.

Maximum theoretical frequency that can be obtained by the sample frequency

Cutt Off Frequency 0

This property is of type Floating point and can be referenced with the variable name cut_off_0.

First cutoff frequency