object LFPulse extends ProductReader[LFPulse] with Serializable
A non-band-limited pulse oscillator UGen. Outputs a high value of one and a low value of zero.
Examples
// modulating frequency play { LFPulse.ar(XLine.kr(1, 200, 10), 0, 0.2) * 0.1 }
// modulating amplitude play { LFPulse.kr(XLine.kr(1, 200, 10), 0, 0.2) * SinOsc.ar(440) * 0.1 }
// used as both oscillator and LFO play { LFPulse.ar(LFPulse.kr(3, 0, 0.3).mulAdd(200, 200), 0, 0.2) * 0.1 }
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- def ar(freq: GE = 440.0f, iphase: GE = 0.0f, width: GE = 0.5f): LFPulse
- freq
oscillator frequency in Hertz
- iphase
initial phase offset in cycles (
0..1). If you think of a buffer of one cycle of the waveform, this is the starting offset into this buffer. Hence, aniphaseof0.25means that you will hear the first impulse after0.75periods! If you prefer to specify the perceived delay instead, you could use aniphaseof-0.25 + 1which is more intuitive. Note that the phase is not automatically wrapped into the range of0..1, so putting aniphaseof-0.25currently results in a strange initial signal which only stabilizes to the correct behaviour after one period! (init-time only)- width
pulse width duty cycle from zero to one. If you want to specify the width rather in seconds, you can use the formula
width = freq * dur, e.g. for a single sample impulse usewidth = freq * SampleDur.ir.
- def ar: LFPulse
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- def kr(freq: GE = 440.0f, iphase: GE = 0.0f, width: GE = 0.5f): LFPulse
- freq
oscillator frequency in Hertz
- iphase
initial phase offset in cycles (
0..1). If you think of a buffer of one cycle of the waveform, this is the starting offset into this buffer. Hence, aniphaseof0.25means that you will hear the first impulse after0.75periods! If you prefer to specify the perceived delay instead, you could use aniphaseof-0.25 + 1which is more intuitive. Note that the phase is not automatically wrapped into the range of0..1, so putting aniphaseof-0.25currently results in a strange initial signal which only stabilizes to the correct behaviour after one period! (init-time only)- width
pulse width duty cycle from zero to one. If you want to specify the width rather in seconds, you can use the formula
width = freq * dur, e.g. for a single sample impulse usewidth = freq * SampleDur.ir.
- def kr: LFPulse
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- def read(in: RefMapIn, key: String, arity: Int): LFPulse
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