trshift — Streaming partial track frequency scaling.
The trshift opcode takes an input containg a TRACKS pv streaming signal (as generated, for instance by partials) and shifts all frequencies by a k-rate frequency. It can also, optionally, scale the gain of the signal by a k-rate amount (default 1). The result is frequency shifting of the input tracks.
fsig -- output pv stream in TRACKS format
fin -- input pv stream in TRACKS format
kshift -- frequency shift in Hz
kgain -- amplitude scaling (default 1)
Example 472. Example
ain inch 1 ; input signal
fs1,fsi2 pvsifd ain,2048,512,1 ; ifd analysis
fst partials fs1,fsi2,.003,1,3,500 ; partial tracking
fscl trshift fst, 150 ; frequency shift (adds 150Hz to all tracks)
aout tradsyn fscl, 1, 1, 500, 1 ; resynthesis
out aout
The example above shows partial tracking of an ifd-analysis signal and linear additive resynthesis with frequency shifting.