30 lines
1.1 KiB
Scheme
30 lines
1.1 KiB
Scheme
;; (lfdclip-noise rate freq)
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;; Like lfclip-noise, it generates the values -1 or +1 at a rate given
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;; by the freq argument, with two differences: no time quantization,
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;; and fast recovery from low freq values.
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;; (lfclip-noise, as well as lf-noise0,1,2 quantize to the nearest
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;; integer division of the samplerate, and they poll the freq argument
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;; only when scheduled, and thus seem to hang when freqs get very
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;; low).
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;; If you don't need very high or very low freqs, or use fixed freqs,
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;; lfclip-noise is more efficient.
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;; Try wiggling mouse quickly; LFNoise frequently seems stuck,
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;; LFDNoise changes smoothly.
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(let ((f (mul-add (lfclip-noise ar (mouse-x kr 0.1 1000 1 0.1)) 200 500)))
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(audition (out 0 (mul (sin-osc ar f 0) 0.2))))
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(let ((f (mul-add (lfdclip-noise ar (mouse-x kr 0.1 1000 1 0.1)) 200 500)))
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(audition (out 0 (mul (sin-osc ar f 0) 0.2))))
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;; LFNoise quantizes time steps at high freqs, LFDNoise does not:
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(let ((f (x-line kr 1000 20000 10 remove-synth)))
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(audition (out 0 (mul (lfclip-noise ar f) 0.1))))
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(let ((f (x-line kr 1000 20000 10 remove-synth)))
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(audition (out 0 (mul (lfdclip-noise ar f) 0.1))))
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