Yamaha CS80

OK....just to say you can enjoy yourself with a synth like the CS80 almost
the same way you could do with a human!!!!
Apologies from me too....
----- Original Message -----
From: "Max Fazio" <faxiomas@...>
To: <yamahacs80@yahoogroups.com>
Sent: Friday, May 19, 2006 8:13 PM
Subject: Re: [yamahacs80] CS80 touch reponse: mistery solved!!!


> ...and , what I like the most is her  external input.......!
> M
> ----- Original Message -----
> From: "laurie" <laurie@...>
> To: <yamahacs80@yahoogroups.com>
> Sent: Friday, May 19, 2006 3:49 PM
> Subject: Re: [yamahacs80] CS80 touch reponse: mistery solved!!!
>
>
> > When you say this ,it makes sence to sample/hold the top most pressure
> > with one key......I find you can apply more pressure on a single key
> > than on a key within a chord as your strength gets more evenly
> > distributed across the hand with a  chord....If the hold time didnt
> > exist, playing a loud melody and then adding notes in the same hand
> > would cause a drop in effect of the AT you are trying to maintain on
> > that note....Pretty clever  but...
> >  Is it possible to hit that "hard" velocity without causing some AT
> > happening......I thought when I pounded down to cause a high velocity
> > occurrence my inertia would add aftertouch briefly to the note causing
> > an extra amplification around the attack time....would this slight hold
> > of my initial AT be in play as the decay portion commences??? thus
> > causing the bump or is this circuit actually modifying the attack time
> > which is set with the envelope?????
> >
> > BTW if you try to use too much single fingering on the G.F while in
> > irresponsive mode.......you end up with a lot of time for intimate full
> > hand clusters.....:o
> >
> > Max Fazio wrote:
> >
> > >  Yeah, Laurie, a kind of!
> > > You were right about your statement, actually, the implementations of
> > > the
> > > touch response which came after the patents I mentioned ( mostly uspns
> > >
> > > 4018125 , 3816636 and 3626075 ) , reported a touch response as a
> > > derivative
> > > function of the aftertouch , with FETs and OTAs combined to "sample"
> > > the
> > > higest AT value you play on an estimated basis then keeping it and
> > > lowering
> > > it to the velocity level value you set then havng the double advantage
> > > of a
> > > sharp attack at high levels ( then also the "bump" when the waveform
> > > starts
> > > to output ) which focuses also on the filters giving the piano or
> > > pluck
> > > effect....
> > >
> > > PS: My ex girlfriend loved aftertouch and varied pitch by sliding a
> > > finger
> > > or two on her, you could start from 0Hz to high pitch.....happily she
> > > didn't
> > > love velocity at all..... ;-)
> > >
> > > M
> > > ----- Original Message -----
> > > From: "laurie" <laurie@...>
> > > To: <yamahacs80@yahoogroups.com>
> > > Sent: Friday, May 19, 2006 1:41 AM
> > > Subject: Re: [yamahacs80] CS80 touch reponse: mistery solved!!!
> > >
> > >
> > > > Do you think this is there so you could overwrite a slow attack with
> > >
> > > > aftertouch prior to the decay sequence and is this vector based as
> > > in
> > > > +Change of CV is touch responsive and -Change of CV is touch
> > > > irresponsive.......
> > > >
> > > > BTW....My girlfriend is exactly like this....When I touch her, her
> > > > response is to peak at a high amplitude before I get cutoff and then
> > > she
> > > > is in touch irrisponsive mode...with sharp punchy
> > > control....releasing
> > > > me to hang with the transients.... thats why I still hang on to the
> > > ol
> > > > eighty.....lol
> > > >
> > > > Max Fazio wrote:
> > > >
> > > > >  Hi guys
> > > > > Just to share with you this fantastic discovery: I had a new look
> > > > > among the patents related to the GX1 and CS synthesizers and found
> > >
> > > > > u.s.pn 3636232 and u.s.pn 3784718 relating to the touch response
> > > cv
> > > > > circuit : the circuit acts as a double signal which encodes two
> > > types
> > > > > of signals going into the same output:
> > > > >
> > > > > 1. a so-called "touch responsive" signal which provides a cv on a
> > > > > level which could be both on amplitude and cutoff: the level isn't
> > >
> > > > > just flat but has a decay of 1.5 seconds and a peak slightly
> > > higher
> > > > > than the actual sustain level which becomes hearable when the
> > > level of
> > > > > the touch responsive signal surpasses the sustain-cutoff level.
> > > > >
> > > > > 2. a so-called "touch irresponsive" signal which provides a sharp
> > > AR
> > > > > envelope waveform which has a peak which is independent from the
> > > > > velocity and relates to the first , attack transient, providing a
> > > > > sharp , punchy amplitude cv to the controlled signal. Even though
> > > this
> > > > > AR envelope is able o raise its amplitude peak along with
> > > velocity
> > > > >
> > > > > The combination of the two produces a combined cv that acts to
> > > give
> > > > > the long sought after "natural" touch response: the AR of the t.i.
> > >
> > > > > signal stays quiet under the touch responsive signal under
> > > acertain
> > > > > velocity value, then , with high velocities it can raise up to a
> > > level
> > > > > higher than the touch responsive signal then decaying down to the
> > > > > touch responsive signal ( for itself the t.i. signal decays to 0
> > > but
> > > > > the combination of the two allows a kind of ADS(R) as the
> > > velocity's
> > > > > CV
> > > > >
> > > > > This solves the mistery about my long debated "plucked" response
> > > on
> > > > > certain presets.
> > > > > What do youthink of this discovery? could it be recreated as an
> > > > > encoder into a whatever keyboard??
> > > > > M
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > > >
> >
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