More Filter Overdrive

[Tony Hardie-Bick]

On 08/04/12 16:04, Michael Zacherl. wrote:
>  From what I remember from my talks with Tony I'm not sure if the phase difference is wide enough.
>  From my POV it's rather the phase delay which changes stereo imaging.
> But maybe that's even more interesting since this delays could be (are, Tony?) frequence dependent.

the differentiation was kinda proportional to the resonance, because resonance 
amplifies the instabilities, and hence the divergence between the two channels.

this then fights against phase-locking, so, if you push a high signal into the 
filter, which is ringing or oscillating, then the filter tries to lock on to the 
signal phase, and with these conditions it's really interesting to gradually 
differentiate resonance, cutoff, signal level, and also noise level (if there's 
different noise input to each, or, if it's a DFM1, you can increase the 
component noise)...

i was always aiming for some kind of acoustic quality, and playing with the 
synthesis of a stereo field with these parameters, really was very effective, 
although only for sounds requiring high resonance. the synthesis of stereo 
without reverb, echo, chorus or some other time varying effect is cool, because 
it brings the sound much closer to the intricate - and subtle - phase structure 
of acoustic signals in physical instruments.

roland dimension-d was an inspiration, although that was basically a time-based 
device, albeit very tastefully done. would be too cheesy for my ears now, though :)

Tony (HB)