The stage's transfer function for one sample of LINEAR amplitude, full band, no auto-gain.
Both topologies are written as dry + mix·delta, which is the kernel's own form and not a
cosmetic choice: at mix = 0 the whole wet path is multiplied by exactly zero and the dry
sample is returned untouched, so "mix 0 is bit-identical dry" is true here for the same
reason it is true in the C.
crossfade (soft/tape/tube): delta = shaped − dry, the driven signal faded
against the clean one.
parallel (exciter): delta = shaped, the driven signal ADDED on top of the full dry
signal — what makes an enhancer an enhancer. At full band that is the whole difference;
the exciter's band seed is a frequency choice this function cannot draw.
The stage's transfer function for one sample of LINEAR amplitude, full band, no auto-gain.
Both topologies are written as
dry + mix·delta, which is the kernel's own form and not a cosmetic choice: atmix = 0the whole wet path is multiplied by exactly zero and the dry sample is returned untouched, so "mix 0 is bit-identical dry" is true here for the same reason it is true in the C.soft/tape/tube):delta = shaped − dry, the driven signal faded against the clean one.exciter):delta = shaped, the driven signal ADDED on top of the full dry signal — what makes an enhancer an enhancer. At full band that is the whole difference; the exciter'sbandseed is a frequency choice this function cannot draw.trimDbis applied last, as the stage applies it.