`TBasicPeakAFilter`

`TBiquadIIRFilter`
pl	ro	Gain
pl	ro	Frequency
pl	ro	SampleRate
pl	ro	Bandwidth

`TCustomBiquadIIRFilter`

`TCustomBandwidthIIRFilter`
pt	ro	Alpha
		BandWidth

`TCustomIIRFilter`

`TCustomGainFrequencyFilter`
pt	ro	GainFactor
pt	ro	ExpW0
pt	ro	W0
		Gain
		Frequency

`TCustomFilterWithOrder`
		Order

`TCustomFilter`
pt	ro	SampleRateReciprocal

`TDspSampleRatePersistent`
		SampleRate

`TDspPersistent`

`TNotifiablePersistent`
pt	ro	UpdateCount

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