iirjdart

Description:

iirjdart

iirjdart #
An IIR filter library written in Dart.
Highpass, lowpass, bandpass and bandstop as Butterworth, Bessel and Chebyshev Type I/II.
This library is a porting in Dart of the famous iirj library by berndporr.

Usage #
To use this package add iirjdart as a dependency in your pubspec.yaml file.
Import the library.
import 'package:iirjdart/butterworth.dart';
Then create the filter that you want.
Butterworth butterworth = new Butterworth();
And initialize it with:


Bandstop
butterworth.bandStop(order,Samplingfreq,Center freq,Width in frequ);


Bandpass
butterworth.bandPass(order,Samplingfreq,Center freq,Width in frequ);


Lowpass
butterworth.lowPass(order,Samplingfreq,Cutoff frequ);


Highpass
butterworth.highPass(order,Samplingfreq,Cutoff frequ);


Filtering #
The filtering is done sample by sample for realtime processing:
v = butterworth.filter(v)
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Coding examples #
See the test/*_test.dart files for complete examples
for all filter types.
ToDo #

❌ Add Bessel filter