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    Filters a sequence of samples using the cascade form of a specified IIR filter.

    Programming Patterns

    This node requires the output coefficients from one of the IIR coefficient design nodes: Butterworth Coefficients, Bessel Coefficients, Chebyshev Coefficients, Elliptic Coefficients, or Inv Chebyshev Coefficients.

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    x

    An array of samples to filter.

    Default: Empty array

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    IIR filter cluster

    The cascaded form of IIR filter coefficients. Wire the output of one of the IIR coefficient design nodes to this input.

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    filter structure

    An enum value that selects IIR second-order or fourth-order filter stages.

    IIR 2nd Order

    Selects the IIR second-order filter stage.

    IIR 4th Order

    Selects the IIR fourth-order filter stage.

    Default: IIR 2nd Order

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    reverse coefficients

    The reverse coefficients of the IIR cascade filter.

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    forward coefficients

    The forward coefficients of the IIR cascade filter.

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    init?

    A Boolean value that specifies how this node initializes the internal states. To process a large data sequence that consists of smaller blocks, set this input to FALSE for the first block and to TRUE for continuous filtering of all remaining blocks.

    TRUE This node initializes the internal states to the final states from the previous call to this instance of the node.
    FALSE This node initialized the internal states to 0.

    Default: FALSE

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    filtered x

    An array of filtered samples.

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    error

    A value that represents any error or warning that occurs when this node executes.