35 lines
1.1 KiB
Scheme
35 lines
1.1 KiB
Scheme
;; (grain-fm nc tr dur carfreq modfreq index pan envbuf)
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;; Granular synthesis with frequency modulated sine tones
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;; nc - the number of channels to output. If 1, mono is returned and
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;; pan is ignored.
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;; tr - a kr or ar trigger to start a new grain. If ar, grains after
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;; the start of the synth are sample accurate.
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;; The following args are polled at grain creation time
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;; dur - size of the grain.
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;; carfreq - the carrier freq of the grain generators internal
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;; oscillator
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;; modfreq - the modulating freq of the grain generators internal
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;; oscillator
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;; index - the index of modulation
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;; pan - a value from -1 to 1. Determines where to pan the output in
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;; the same manner as pan-az.
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;; envbuf - the buffer number containing a singal to use for the grain
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;; envelope. -1 uses a built-in Hanning envelope.
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(let* ((x (mouse-x kr -0.5 0.5 0 0.1))
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(y (mouse-y kr 0 400 0 0.1))
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(n (white-noise kr))
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(fd (add 440 (mul n y)))
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(t (impulse kr 10 0))
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(i (lin-lin (lf-noise1 kr 500) -1 1 1 10)))
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(audition (out 0 (mul (grain-fm 2 t 0.1 fd 200 i x -1) 0.1))))
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