The Kyma Language for Sound Design, Version 4.5

SpectrumModifier
Spectral Modifiers Category
A SpectrumModifier takes one of the Sounds from the Spectral Sources category of the Prototype strip as
its input and modifies the spectrum. To resynthesize the modified spectrum, feed the SpectrumModifier
into the spectrum input of an OscillatorBank.
In order to modify the output of a spectral source, the SpectrumModifier selects or rejects tracks of the
spectrum according to some criteria, and then it optionally scales and offsets each frequency and/or
amplitude value of the selected tracks.
Decide whether to select or reject the tracks that meet the criteria.
Then decide whether the rejected tracks should have their amplitudes set to zero or whether they should
simply pass through unaffected by the scale and offset modifications.
Then set the selection (or rejection) criteria, including frequency range, track number range, or amplitude
range. The frequency and amplitude hysteresis values can prevent tracks that are close to the selected
range from popping in and out as they cross the threshold. Probability is the likelihood (ranging from 0 up
to 1) that a track will be selected (or rejected) on each frame.
Finally, you can choose to scale and/or offset either the frequency or amplitude (or both) on each frame
of each selected track.
Spectrum
This is the spectrum that will be modified; it should be one of the classes of Sound found in the Spectral
Sources category (e.g. LiveSpectralAnalysis, SpectrumInRAM). The SpectrumModifier assumes linear
(rather than log) frequencies, so you may see a dialog asking you to insert a SpectrumLogToLinear
module inbetween the spectral source and the SpectrumModifier.
Select
Check this to specify the criteria for *selection*. Otherwise, the tracks that meet the criteria will be
*rejected*. Unchecking this box is like placing a logical NOT after all of the selection criteria.
LoTrack
Enter an integer track number. Only this track and higher-numbered tracks will be selected.
HiTrack
Enter an integer track number. Only this track and lower-numbered tracks will be selected. To be certain
of selecting all tracks, enter a number much larger than the highest possible track number (e.g. 10000).
LoFreq
Enter a pitch or frequency with units. On each frame, a track will be selected if the value of the frequency
envelope on that frame is at this frequency or a higher frequency. Use FreqHysteresis to prevent tracks
from popping in and out on each frame if they are wavering around this frequency.
HiFreq
Enter a pitch or frequency with units. On each frame, a track will be selected if the value of the frequency
envelope on that frame is at this frequency or a lower frequency. Use FreqHysteresis to prevent tracks
from popping in and out on each frame if they are wavering around this frequency.
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