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SignalUtils.TFilterType Enumeration
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Defines FIR filter types.

Pascal
TFilterType = (
  ftLowpass,
  ftHighpass,
  ftBandpass,
  ftBandstop,
  ftHilbertIII,
  ftHilbertIV,
  ftDifferentiatorIII,
  ftDifferentiatorIV,
  ftDoubleDifferentiatorIII,
  ftDoubleDifferentiatorIV,
  ftIntegratorIII,
  ftIntegratorIV,
  ftDoubleIntegratorIII,
  ftDoubleIntegratorIV
);
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Description 
ftLowpass 
design a lowpass filter. 
ftHighpass 
design a highpass filter. 
ftBandpass 
design bandpass filter 
ftBandstop 
design a bandstop filter 
ftHilbertIII 
design a type III hilbert transformer. 
ftHilbertIV 
design a type IV hilbert transformer. 
ftDifferentiatorIII 
design a type III differentiator. 
ftDifferentiatorIV 
design a type IV differentiator. 
ftDoubleDifferentiatorIII 
design a type III differentiator. 
ftDoubleDifferentiatorIV 
design a type IV differentiator. 
ftIntegratorIII 
design a type III integrator. 
ftIntegratorIV 
design a type IV integrator. 
ftDoubleIntegratorIII 
design a type III integrator. 
ftDoubleIntegratorIV 
design a type IV integrator. 
Description

Not all routines accepting TFilterType variable can design all filter types. All IIR filter design routines are limited to ftLowpass, ftBandpass, ftHighpass and ftBandstop filter types.

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