filter.FirFilterWin.Interface.FilterSpec

dsp-collection / filter/FirFilterWin / FilterSpec

Interface: FilterSpec

Parameters for creating an FIR filter kernel.

The current implementation only supports LP filters yet.

Properties

normFirstMinFreq?

optional normFirstMinFreq?: number;

normFirstMinFreq is the normalized frequency of the first minimum of the filter transfer curve.
Formula: normFirstMinFreq = firstMinFrequency / sampleRate = 1 / waveLengthOfFirstMinimumInSamples

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width?

optional width?: number;

Filter width in samples.
Either width or normFirstMinFreq must be specified.

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windowFunctionId

windowFunctionId: string;

ID of the window function to be used.

See

WindowFunctions.windowFunctionIndex