205 lines
6.9 KiB
Common Lisp
205 lines
6.9 KiB
Common Lisp
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(in-package #:cl-collider)
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(in-package #:cl-patterns)
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;;; so the copied from supercollider examples is
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;; {
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;; var snare, bdrum, hihat;
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;; var tempo = 4;
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;; tempo = Impulse.ar(tempo); // for a drunk drummer replace Impulse with Dust !!!
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;; snare = WhiteNoise.ar(Decay2.ar(PulseDivider.ar(tempo, 4, 2), 0.005, 0.5));
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;; bdrum = SinOsc.ar(Line.ar(120,60, 1), 0, Decay2.ar(PulseDivider.ar(tempo, 4, 0), 0.005, 0.5));
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;; hihat = HPF.ar(WhiteNoise.ar(1), 10000) * Decay2.ar(tempo, 0.005, 0.5);
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;; Out.ar(0, (snare + bdrum + hihat) * 0.4 ! 2)
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;; }.play
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;; and that didn't work
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;; (defsynth snare ()
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;; (out.ar 0 (decay2.ar (pulse-divider.ar 4 4 2) 0.005 0.5))
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;; ;; (white-noise.ar (decay2.ar (pulse-divider.ar 4 4 2) 0.005 0.5))
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;; )
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;; (synth :snare)
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;; (stop)
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;;; advice I got:
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;; As for your question about the snare synthdef, pulse-divider doesn't actually generate any triggers on its own, it just outputs a trigger every div triggers. So instead you could try something like this:
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(in-package #:cl-collider)
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(defsynth snare ()
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(out.ar 0 (white-noise.ar (decay2.ar (pulse-divider.ar (impulse.ar 8) 4 2) 0.005 0.5))))
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;; (synth :snare)
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;; (stop)
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;;
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;; yup. that works (in a loop)
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;; now I want to figure out that :free thing
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;;; continuation of advice
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;; But if you just want to use snare in a pattern, I would write it like this:
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(in-package #:cl-collider)
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(defsynth snare ((amp 0.5) (out 0))
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(out.ar out (* amp (white-noise.ar (env-gen.ar (env (list 0 1 0) (list 0.005 0.5)) :act :free)))))
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;; (synth :snare)
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;; (stop)
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;; that's a bit longer that I'd like
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(in-package #:cl-patterns)
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(pb :test
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:instrument :snare
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:dur 1
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;; :amp (pwhite 0.0 0.5)
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:pfindur 4)
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;; (play :test)
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;; (end :test)
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;;
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;; ok, that works
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;;
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;; of the things I really should do, is go and read
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;; about Envelope generators, ones that have that :act :free thing
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;;
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;; one other thing - is to get one or two other drums and mock up a beat
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;; well, if I'm doing this in small steps, let's read about envelope
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;; and make first snare synth usable in patterns
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;;
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;; tried to read just about EnvGen and Env
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;; https://doc.sccode.org/Classes/EnvGen.html
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;; https://doc.sccode.org/Classes/Env.html
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;;
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;; then got directed to the Tutorial, good idea to read it,
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;; if not previous "first tutorial", then on concepts:
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;; http://doc.sccode.org/Tutorials/Streams-Patterns-Events1.html
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;;; So, env-gen takes in lists for intensity and timings, from that builds output signal that can be used in other gens?
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(in-package #:cl-collider)
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(defsynth env-test-1 ((amp 0.5) (out 0))
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(out.ar out (* amp (sin-osc.ar 440.0 0.0 (env-gen.ar (env (list 0 1 0) (list 0.005 0.5)) :act :free)))))
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;; (synth :env-test-1)
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;; (stop)
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(in-package #:cl-collider)
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(defsynth env-test-1-1 ((amp 0.5) (out 0))
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(out.ar out (* amp (sin-osc.ar 440.0 0.0 (env-gen.ar (env (list 0 1 0.1 0) (list 0.005 0.01 0.5)) :act :free)))))
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;; (synth :env-test-1-1)
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;; (stop)
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(in-package #:cl-collider)
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(defsynth env-test-2 ((amp 0.5) (out 0) (start 100) (middle 400) (end 200))
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(out.ar out (* amp (sin-osc.ar (env-gen.ar (env (list start middle end) (list 0.5 1.0)) :act :free)))))
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;; (synth :env-test-2)
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;; (synth :env-test-2 :start 200 :middle 200 :end 200)
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;; (synth :env-test-2 :start 200 :middle 300 :end 200)
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;; (synth :env-test-2 :start 100 :middle 400 :end 100)
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;; (stop)
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;;
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;; so, yes, env-gen can define stream of numbers by times, and the numbers can be used for example in sin-osc.ar frequency input
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;; now, how could I make other percussions? attempting to look at the example from SC
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;; {
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;; var snare, bdrum, hihat;
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;; var tempo = 4;
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;; tempo = Impulse.ar(tempo); // for a drunk drummer replace Impulse with Dust !!!
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;; snare = WhiteNoise.ar(Decay2.ar(PulseDivider.ar(tempo, 4, 2), 0.005, 0.5));
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;; bdrum = SinOsc.ar(Line.ar(120,60, 1), 0, Decay2.ar(PulseDivider.ar(tempo, 4, 0), 0.005, 0.5));
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;; hihat = HPF.ar(WhiteNoise.ar(1), 10000) * Decay2.ar(tempo, 0.005, 0.5);
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;; Out.ar(0, (snare + bdrum + hihat) * 0.4 ! 2)
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;; }.play
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;;
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;; so let's try bdrum?
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(in-package #:cl-collider)
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(defsynth bdrum ((amp 0.5) (out 0) )
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(out.ar out (* amp (sin-osc.ar (line.ar 120 60 1) 0 (env-gen.ar (env (list 0 1 0) (list 0.005 0.5)) :act :free)))))
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;; (synth :bdrum :amp 1)
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(in-package #:cl-collider)
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(defsynth snare ((amp 0.5) (out 0))
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(out.ar out (* amp (white-noise.ar (env-gen.ar (env (list 0 1 0.3 0) (list 0.005 0.01 0.5)) :act :free)))))
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;; (synth :snare)
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(in-package #:cl-collider)
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(defsynth hihat ((amp 0.5) (out 0))
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(out.ar out (* amp (hpf.ar (white-noise.ar 1) 10000) (env-gen.ar (env (list 0 1 0) (list 0.005 0.5)) :act :free))))
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;; hihat = HPF.ar(WhiteNoise.ar(1), 10000) * Decay2.ar(tempo, 0.005, 0.5);
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;; (synth :hihat)
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;;; whoa, now I can try to combine these in a pattern!
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;; let's just copy another pattern with my instruments maybe?
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(in-package #:cl-patterns)
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(pb :foo ;; define a new pattern named :foo
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:instrument :bdrum ;; use the :kik synth we defined above
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:play-quant 4 ;; make sure the pattern will only start on a beat that is divisible by 4, to stay in sync
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:dur 2 ;; give each event a duration of 1 beat
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:pfin 2 ;; limit the length of the pattern to 4 events (the default is infinite events)
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)
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;; (play :foo)
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;; (end :foo)
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(pb :fee ;; define a new pattern named :foo
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:instrument :hihat ;; use the :kik synth we defined above
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:play-quant 4 ;; make sure the pattern will only start on a beat that is divisible by 4, to stay in sync
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:dur 3 ;; give each event a duration of 1 beat
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:pfin 1 ;; limit the length of the pattern to 4 events (the default is infinite events)
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)
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;; (play :fee)
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;; (end :fee)
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(pb :fum ;; define a new pattern named :foo
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:instrument :snare ;; use the :kik synth we defined above
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:play-quant 4 ;; make sure the pattern will only start on a beat that is divisible by 4, to stay in sync
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:dur 0.5 ;; give each event a duration of 1 beat
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:pfin 8 ;; limit the length of the pattern to 4 events (the default is infinite events)
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:amp 0.1
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)
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;; (play :fum)
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;; (end :fum)
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(pdef :all-parallel (ppar (list (pdef :foo) (pdef :fee) (pdef :fum))))
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;; (play :all-parallel)
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;; (end :all-parallel)
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;;
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;; (in-package #:cl-patterns)
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;; (render (pdef :all-parallel) "/tmp/perc-1.aiff" :dur 16)
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;; doesn't work for some reason
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;; let's write as I did previously, and maybe ask a question later
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(in-package #:cl-collider)
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(defsynth disk_writer ((out_buf_num 99))
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(disk-out.ar out_buf_num (in.ar 0)))
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(setf mybuffer (buffer-alloc (expt 2 17)))
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mybuffer
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;; start a disk_writer synth
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(setf writer_0 (synth 'disk_writer))
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;; make it output to buffer you allocated
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(ctrl writer_0 :out_buf_num (bufnum mybuffer))
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;; continuously write the buffer contents to a file
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(buffer-write mybuffer "/tmp/foo.aiff" :leave-open-p t)
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;; now play whatever sounds you like
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;; stop the disk_writer synth
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(free writer_0)
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;; close and free the buffer
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(buffer-close mybuffer)
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(buffer-free mybuffer)
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;; wow, now that's a success
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;; question on how to write
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;; and what else?
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