this is the reconstruction of the sherman filterbank, done for my brother these days, which is dreaming of the real one....
its mostly guessed how it could work reading its usermanual. i don´t own any myself, if anyone does so, some feedback would be cool, i´m sure i just invented some stuff for myself since i do not know how the original exactly works.
but nontheless it has got some funny functions. a short description.
the input gain with valve distortion, high boost or cut.
2 filters, which are changeable between LP-BP-HP by knob.
a strange correctionknob, which allows you to get more and various filtercharacteristics.
self resonation of filters.
envelope-sensitivity of filters individually adjustable.
an adsr envelope, whit optional negative sustain, which can also work in an envelope-following-mode.
a lfo, syncable to incoming audio with a speedrange from lf to audio. with normal or phaseinverted depth.
an vca-envelope which you can switch on. uses trigger of incoming audio, can also be switched to external.
parallel and serial mode of filters.
output with another valvedistortion.
and a pseudostereo-switch.