This document discusses various sound synthesis techniques in SuperCollider including additive synthesis, subtractive synthesis, noise generators, and demand ugens. It provides information on units like Blip, Klang, DynKlang, noise types (white, pink, brown, gray), Klank, and demand ugens like Duty.ar and TDuty.ar. Examples are given of how to implement different synthesis techniques using these ugens. The document also prompts the reader to compose a short piece using three ugens covered in the class.

1. Chikashi Miyama
Super Collider3 SS 2016 #5

2. Additive Synthese

3. Additive Synthese
✤ Blip
✤ Band Limited ImPulse generator. All harmonics
have equal amplitude.
Blip.ar(440, 1) Blip.ar(440, 5)

4. Additive Synthese
✤ Blip
✤ Band Limited Impulse generator. All harmonics
have equal amplitude.

5. Additive Synthese
✤ Blip
✤ Additive Synthese
✤ Bass Synth

6. Additive Synthese
✤ Klang
✤ Klang is a bank of fixed frequency sine oscillators. Klang is more
efficient than creating individual oscillators but offers less
flexibility.
Klang. ar(`[[440, 880, 1320], [1, 0.1,0.5],nil])

7. Additive Synthese
✤ Klang
C E G 200 1000 Hz.

8. Additive Synthese
✤ DynKlang
DynKlang is a bank of sine oscillators. It is less efficient than
Klang, as it is basically a wrapper around SinOsc UGens in
order to provide a similar interface to Klang.

9. Additive Synthese
✤ DynKlang

10. Additive Synthese
✤ DynKlang
Benchmark

11. Rauschgenerator

12. Rauschgenerator
✤ WhiteNoise
✤ PinkNoise
✤ BrownNoise
✤ GrayNoise

13. Rauschgenerator
✤ WhiteNoise
✤ PinkNoise
(-3dB / Okt)
✤ BrownNoise
(-6dB / Okt)
✤ GrayNoise

14. Rauschgenerator
✤ https://en.wikipedia.org/wiki/Colors_of_noise
✤ GrayNoise
is random white noise subjected to a psychoacoustic equal loudness curve over a
given range of frequencies, giving the listener the perception that it is equally loud at
all frequencie.This is in contrast to standard white noise which has equal strength
over a linear scale of frequencies but is not perceived as being equally loud due to
biases in the human equal-loudness contour.

15. Rauschgenerator
✤ LFNoise0
✤ LFNoise1
✤ LFNoise2
Ohne Interpolation
Linear Interpolation
Quad Interpolation

16. Rauschgenerator

17. Rauschgenerator

18. Subtraktive Synthese
✤ Klank
✤ Klank is a bank of fixed frequency resonators which can be used
to simulate the resonant modes of an object. Each mode is given
a ring time, which is the time for the mode to decay by 60 dB.
Frequenz Lautstärke Dauer

19. Subtraktive Synthese
✤ Klank
✤ mit Rauschen
✤ Regen?

20. Subtraktive Synthese
✤ Klank
✤ Frequenzgang des Filters
✤ mit einem Sample

21. Gate und latch

22. Gate
✤ Gate.ar
✤ Allows input signal value to pass when gate is positive,
otherwise holds last value

23. Latch
✤ Latch.ar
✤ Sample and Hold (sah~) in SC

24. Latch

25. Latch
Mit Dust.ar
Mit WhiteNoise.ar

26. Gate
✤ Gate.ar
✤ Allows input signal value to pass when gate is positive,
otherwise holds last value

27. Demand Ugen

28. Demand Ugen
✤ Demand = Stream-Pattern-Event in einem Synth
✤ Vorteil
✤ Rhythmische Impulse
✤ Melodie LFO

29. Demand Ugen
[60, 67, 72, 67] … C, G, C, G
Demand verändert die Tonhöhe ,
wenn es einen Trig bekomme
Dseq (Demand Sequence) …funktioniert wie Pseq

30. Demand Ugen
✤ Randomisiertes Timing

31. Demand Ugen
✤ Kombination mit anderen Ugens

32. Demand Ugen
✤ Wie kann man Rhythmus mit dem Demand-System
komponieren?
✤ Duty.ar
✤ TDuty.ar

33. Demand Ugen
✤ Duty.ar … Pbind in SynthDef

34. Demand Ugen
✤ Duty.ar … Pbind in SynthDef

35. Demand Ugen
✤ TDuty.ar … Komponierte Impulse Generator
Unterschied zwischen Duty und TDuty
(Trigger)
Duty
TDuty

36. Demand Ugen
✤ TDuty.ar … Komponierte Impulse Generator

37. Demand Ugen
✤ ein rhythmisches Muster mit Snare

38. Liste von Demand Ugens
✤ Dbrown
✤ Dwhite
✤ Dseq
✤ Dser
✤ Dgeom
✤ Dseries
✤ Drand
✤ Dwrand
✤ Dxrand
✤ Dshuf
Etc

39. H.A.
✤ Komponieren Sie ein kurzes Stück mit drei Ugens, die
in der Klasse vorgestellt wurden.