string filter bank (was: Re: [sdiy] 40-band vocorder)

[JH.]

>Others might disagree, but my own view is that the peaks introduced
>by a short BBD delay have a very distinctive sound which is nothing
>like anything I'd call a string filter. Instead, the sound is much
>more akin to that you get when shouting down a long tube or pipe.
>Particularly a metal pipe. This sound is a flanger with the LFO
>disconnected, and it's not a great sound, IMO.

It's because all the resonances are perfectly "in tune" and lock, or don't 
lock, on all the harmonics of an input signal at the same time.

JH.