The Kyma Language for Sound Design, Version 4.5

Oscillator
Xtra Sources Category
The Wavetable is treated as a single cycle of a periodic function. There are options for interpolation and
modulation. In general, the more options that are selected and more parameters that are time-varying,
the more complicated the computation of the Oscillator and the fewer of them you can compute in real
time.
Frequency
The frequency can be specified in units of pitch or frequency. The following are all ways to specify the A
above middle C:
440 hz (in hertz or cycles per second)
4 a (as the 4th octave A)
69 nn (as a MIDI notenumber)
4 c + 9 nn (as 9 half steps above middle C)
1.0 / 0.00227273 s (inverse of a period at 44.1 kHz sample rate)
The following are examples of how to control the frequency using MIDI, the virtual control surface, or a
third-party program:
!Pitch (key number plus pitch bend)
!KeyNumber nn (MIDI notenumber)
4 c + (!Frequency * 9 nn) (continuous controller from 4 c to 4 a)
Wavetable
Select a wavetable for the oscillator. The Oscillator expects wavetables with 4096 entries.
Modulation
Select whether or not there should be frequency modulation.
Modulator
If Modulation has been set to frequency, then this Sound is the Modulator (otherwise it is ignored).
Usually the Modulator is another Oscillator, but it can be any Sound.
MaxMI
This is the value of the modulation index when the Modulator is at its full amplitude.
Interpolation
Choose linear if you would like to interpolate between the values read from the wavetable.
Envelope
This is an attenuator on the output of the Oscillator. Enter 1 (or 0 dB) for the full amplitude. For a
time-varying amplitude, paste in a Sound (such as AR, ADSR, or FunctionGenerator) or an Event Value
(such as !Volume) in this field.
PitchBend
This is a deviation from the specified Frequency computed as:
307