vco2ft — Returns a table number at k-time for a given oscillator frequency and wavform.
vco2ft returns the function table number to be used for generating the specified waveform at a given frequency. This function table number can be used by any Csound opcode that generates a signal by reading function tables (like oscilikt). The tables must be calculated by vco2init before vco2ft is called and shared as Csound ftables (ibasfn).
iwave -- the waveform for which table number is to be selected. Allowed values are:
0: sawtooth
1: 4 * x * (1 - x) (integrated sawtooth)
2: pulse (not normalized)
3: square wave
4: triangle
Additionally, negative iwave values select user defined waveforms (see also vco2init).
inyx (optional, default=0.5) -- bandwidth of the generated waveform, as percentage (0 to 1) of the sample rate. The expected range is 0 to 0.5 (i.e. up to sr/2), other values are limited to the allowed range.
Setting inyx to 0.25 (sr/4), or 0.3333 (sr/3) can produce a “fatter” sound in some cases, although it is more likely to reduce quality.