Re: [linux-audio-user] Re: SpiralSynthModular help

On Sun, Mar 12, 2006 at 11:00:04AM +1100, Loki Davison wrote:
> On 3/12/06, Hiram Abiff <domain.admin@email-addr-hidden> wrote:
> > Quoting Joseph Jones <bumpycarrot@email-addr-hidden>:
> >
> > > Hi gang, new to the list, please be gentle :)
> > >
> > > I just installed DeMuDi, and to be honest, I'm a bit of a n00b so far
> > > as music goes, other than being able to play bass and guitar (which,
> > > in my opinion, don't expose the player to much of the musical world so
> > > long as they can read guitar tab).
> > >
> > > So anyway, I've been messing around with SpiralSynthModular a bit,
> > > since I didn't like the constriction of sample-based synths, and I'm
> > > basically having trouble stringing together a chain. Indeed, I feel
> > > that I'm falling at the first stumbling block. I can get output from
> > > SSM, but it's only a very loud, constant tone. I've got my midi input
> > > hooked up to an oscillator (I think this is where my problem is) and
> > > then my oscillator hooked up to my jack output.
> > >
> > > I'm guessing that my problem is that I'm pumping midi data into
> > > something designed for... something else? I dunno.
> > >
> > > If someone could tell me which pieces do what, or point me in the
> > > right direction, it'd be a great help :)
> > >
> > > Sorry if this gets asked a lot or if I've missed something blindingly
> > > obvious (like a manual ;) ).
> > > --
> > > Joe Jones
> >
> > have you tried Om synth?
> > http://www.nongnu.org/om-synth/
> >
> > Ffrom the SSM page:
> > " Note: Sadly Spiral Modular is not under active development and hasn't
> > been for some time. I'm busy on other projects now, and ssm lives on as
> > the core of this. Otherwise, Om synth has a similar methodology to ssm,
> > but has a more modern design and is under active development."
> >
> >
> > --
> > http://www.egoboobits.net/HiramAbiff
> >
> >
>
> Om is great use it! ;-)

this does not explain, what he needs to do, to get a non constant tone,

a "tone" consists of a frequency, and some dynamics such as attack and
release. you add these properties by multiplying the output of the
oscilator, with an adsr envelope.
  
 /\___
/ \
a d s r

attack, decay, sustain, release

the sustain, is obviously controlled by how long you hold your key down,
so you will need to hook up the midi in to the adsr as well.

please ommers, point him to somewhere, where that is explained, a little
better...

>
> Loki
>

-- 
torben Hohn
http://galan.sourceforge.net -- The graphical Audio language