object Formlet extends ProductReader[Formlet] with Serializable
A FOF-like resonant filter UGen. Its impulse response is like that of a sine
wave with a Decay2 envelope over it. It is possible to control the attack and
decay times.
Formlet is equivalent to:
Ringz(in, freq, decay) - Ringz(in, freq, attack)
The great advantage to this filter over FOF (Fonction d'onde formantique) is that there is no limit to the number of overlapping grains since the grain is just the impulse response of the filter.
Note: Ringz and derived UGens Klank and Formlet produce output RMS
depending on the server's sampling rate. This is to achieve the same amplitude
for single-sample impulse inputs.
Examples
// modulated formant frequency play { val in = Blip.ar(SinOsc.kr(5,0).mulAdd(20, 300), 1000) * 0.1 Formlet.ar(in, XLine.kr(1500, 700, 8), 0.005, 0.04) }
// mouse control of frequency and decay time play { val in = Blip.ar(SinOsc.kr(5,0).mulAdd(20, 300), 1000) * 0.1 val freq = MouseY.kr(700, 2000, 1) val decay = MouseX.kr(0.01, 0.2, 1) Formlet.ar(in, freq, attack = 0.005, decay = decay) }
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- def ar(in: GE, freq: GE = 440.0f, attack: GE = 1.0f, decay: GE = 1.0f): Formlet
- in
input signal to be filtered
- freq
resonant frequency in Hertz
- attack
the 60 dB attack time in seconds
- decay
the 60 dB decay time in seconds
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- def kr(in: GE, freq: GE = 440.0f, attack: GE = 1.0f, decay: GE = 1.0f): Formlet
- in
input signal to be filtered
- freq
resonant frequency in Hertz
- attack
the 60 dB attack time in seconds
- decay
the 60 dB decay time in seconds
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