IIRFilterNode Class

A general infinite impulse response filter (https://webaudio.github.io/web-audio-api/#IIRFilterNode).

public sealed class IIRFilterNode : AudioNode

Constructors

Name	Description
IIRFilterNode(BaseAudioContext, IIRFilterOptions)	Creates an IIR filter.

Creates an IIR filter.

public IIRFilterNode(BaseAudioContext context, IIRFilterOptions options)

DomException: An array is empty or has more than 20 coefficients (a NotSupportedError), the feedforward coefficients are all zero or the first feedback coefficient is zero (an InvalidStateError).

Name	Description
GetFrequencyResponse(ReadOnlySpan<byte>, Span<byte>, Span<byte>)	Computes the frequency response of the filter.

Computes the frequency response of the filter.

public void GetFrequencyResponse(ReadOnlySpan<byte> frequencyHz, Span<byte> magResponse, Span<byte> phaseResponse)

frequencyHz ReadOnlySpan<byte>: The frequencies in Hz (a Float32Array).
magResponse Span<byte>: Receives the linear magnitudes (a Float32Array of the same length).
phaseResponse Span<byte>: Receives the phases in radians (a Float32Array of the same length).

DomException: The arrays have different lengths (an InvalidAccessError).