Butterworth class

Create a Butterworth filter.

Example:

  Butterworth butterworth = new Butterworth();
  butterworth.bandPass(2,250,50,5);

Constructors

Butterworth()

Properties

hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

applyScale(double scale) → void
inherited
bandPass(int order, double sampleRate, double centerFrequency, double widthFrequency, [int directFormType = DirectFormAbstract.direct_form_II]) → void
Butterworth Bandpass filter.
bandStop(int order, double sampleRate, double centerFrequency, double widthFrequency, [int directFormType = DirectFormAbstract.direct_form_II]) → void
Butterworth Bandstop filter.
filter(double _in) double
inherited
getBiquad(int index) → Biquad
inherited
getNumBiquads() int
inherited
highPass(int order, double sampleRate, double cutoffFrequency, [int directFormType = DirectFormAbstract.direct_form_II]) → void
Butterworth High-pass filter.
lowPass(int order, double sampleRate, double cutoffFrequency, [int directFormType = DirectFormAbstract.direct_form_II]) → void
Butterworth Low-pass filter.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reset() → void
inherited
response(double normalizedFrequency) → Complex
inherited
setLayout(LayoutBase proto, int filterTypes) → void
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited