vdelayk — k-rate variable time delay.
imaxdel - maximum value of delay in seconds.
iskip (optional) - Skip initialization if present and non zero.
imode (optional) - if non-zero it suppresses linear interpolation. While, normally, interpolation increases the quality of a signal, it should be suppressed if using vdelay with discrete control signals, such as, for example, trigger signals.
kout - delayed output signal
ksig - input signal
kdel - delay time in seconds can be varied at k-rate
vdelayk is similar to vdelay, but works at k-rate. It is designed to delay control signals, to be used, for example, in algorithmic composition.