Pulse

A band-limited pulse wave generator UGen, capable of pulse width modulation.

'''Note''': The fine behavior depends on the server's block-size which interacts with the pulse width. The behavior is more regular if the duty period sr / freq * width is an integer multiple of the block-size. A width of 1.0 can produce strange results.

===Examples===

// modulate frequency
play { Pulse.ar(XLine.kr(40, 4000, 6)) * 0.2 }

// modulate pulse width
play { Pulse.ar(200, Line.kr(0.01, 0.99, 8)) * 0.2 }

// two pulses with different frequencies through resonant filter
play { RLPF.ar(Pulse.ar(Seq(100, 250)) * 0.2, XLine.kr(8000, 400, 6), 0.05) }