[sdiy] 40-band vocorder

[Kyle Stephens]

Heh, I am a fan of overdesign myself, so far as my budget will let me :3


_Kyle

--- On Tue, 3/31/09, Ian Smith <taciturn_unquiet at hotmail.com> wrote:

> From: Ian Smith <taciturn_unquiet at hotmail.com>
> Subject: RE: [sdiy] 40-band vocorder
> To: "synth diy" <synth-diy at dropmix.xs4all.nl>
> Date: Tuesday, March 31, 2009, 8:11 PM
> 
> I have to admit, I was the "more pole" guy... yes, that's
> me... the Tim Allen of the analogue world. So since 40 bands
> is a bit excessive, would doing the same level adjusting...
> attenuating I guess on the filters be interesting?
> -Ian (more knobs is better) Smith
> 
> ----------------------------------------
> > Date: Tue, 31 Mar 2009 19:41:30 -0700
> > From: lightburnx at yahoo.com
> > Subject: Re: [sdiy] 40-band vocorder
> > To: taciturn_unquiet at hotmail.com
> >
> >
> > wait, i just sent you an incomplete response didn't i?
> meh...
> >
> > Anyhoo, yeah, as said it's one of those cases where
> more isn't necessarily better. Someone a while back asked
> about a "more pole" filter (that is one having more than the
> standard 2-4), and thing is a 3 doesn't sound much different
> than a 4, and it's less and less after that.
> >
> > Another thing that filter stages do is phase shift the
> signal by 45 degrees, and there's other EE stuffs that make
> this not neccicarily something you want.
> >
> > I think the Access Virus has something like a 32 band
> vocoder, and that's nigh overkill. Think bigger than 24-bit
> sampling and stuff like that.
> >
> > But wait and see what the higher ups on the group have
> to say - might be "rock n roll let's build this bitch!" for
> all I know :P
> >
> >
> > _Kyle
> >
> > --- On Tue, 3/31/09, Ian Smith  wrote:
> >
> >> From: Ian Smith 
> >> Subject: [sdiy] 40-band vocorder
> >> To: "synth diy" 
> >> Date: Tuesday, March 31, 2009, 5:27 PM
> >>
> >> Hey all,
> >> I'm back with another insane idea. Here are the
> sources of
> >> my madness: A book on Vocal Coding and Formants,
> Paia
> >> Corporation's Vocorder, and Jurgen Haible's 40
> band fixed
> >> filter bank.
> >> I know some of you just twitched in terror at the
> thought
> >> of all that wire.
> >> For those of you that didn't: 80 filters (2 sets
> of 40, one
> >> for the vocal input one for the instrument input)
> with 80
> >> sliders, 40 envelope followers, and 40 VCAs.
> >> Yup... there go the rest of you. That twitch was
> >> disturbance-in-the-force worthy...
> >> But wouldn't it be awesome to be able to shape
> both the
> >> instrument signal AND the vocal signal?
> >> In other questions... how advanced do the VCAs
> need to be?
> >> Do they have to be full blown log/lin VCAs or
> would a simple
> >> little single transistor VCA like the one in Ray
> Wilson's
> >> Weird Sound Generator work?
> >> -Ian
> >>
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> >
> >
> 
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