filter.SpecFilt.Function.getFilterCurveFunction

dsp-collection / filter/SpecFilt / getFilterCurveFunction

Function: getFilterCurveFunction()

function getFilterCurveFunction(
   filterType, 
   filterFreq1, 
   filterFreq2, 
   smoothingWidth): FilterCurveFunction;

Defined in: filter/SpecFilt.ts:41

Returns a filter curve function for a specified filter type.

The band pass filter function can also be used for fading a signal.

Parameters

filterType

FilterType

filter type (low-pass, high-pass, etc.).

filterFreq1

number

Filter frequency for low-pass or high-pass. Lower filter frequecy for band-pass or band-stop.

filterFreq2

number

Upper filter frequecy for band-pass or band-stop. Ignored for low-pass or high-pass.

smoothingWidth

number

Distance between the start of the smoothing and the -6dB point. The whole smoothing region width is 2 * smoothingWidth.

Returns

FilterCurveFunction

A filter curve function, which returns values between 0 (=silence) and 1 (=pass unfiltered).