Hi Michel -
I'm still trying to understand this one, too! Further experiments
revealed that if you change the duty cycle of the pulse, you get a
different timbre. Also curious: if you use both GAT and TRIGGER you
get no sound at all!
Did you hear #8? That was a mono chord from a synth into
4 'granularizers' spread in a wide stereo field. Really cooL!
Mike
--- In motm@y..., "michelhav" <anymail@x> wrote:
> Hi Mike,
>
> Thanks for your interesting 'granular sound' tip. I noticed that
if
> you choose the GATE IN on the EG instead of the TRIG and increase
the
> pitch of oscillator one, you get a different, heavier distorted
> sound. But listening to the demo's I think you already found that
> out...
>
> Michel
>
>
> --- In motm@y..., "mmarsh100" <mmarsh@s...> wrote:
> > Hi All -
> >
> > Just back from vacation. Two weeks away from all musical tools
is
> a
> > recipe for epiphane, albeit a painful wait to try things out.
> >
> > Here is a way to do basic granular synthesis using only four
> > modules: two oscillators, on EG, and a VCA. For theory check
out
> > Curtis Roads' "Microsound" from MIT Press.
> >
> > Oscillator one is set at 20 Hz to about 800 Hz (between about 2
and
> > 4.5 on the COURSE knob) and will output pulses in the 10 to 50
msec
> > range (you do the math, I suck at it). The PULSE output is sent
to
> > the GATE or TRIGGER in of the EG. The EG's DECAY and RELEASE are
> set
> > to zero with ATTACK and SUSTAIN set to about 2. The + OUT of
the
> EG
> > goes to a 110 CV IN. Another oscillator's SIN out is sent to
the
> > 110's IN (this is the signal to be granulated). Send the out to
> the
> > console, but if you have a scope send it there, too.
> >
> > Play with the COURSE knob on oscillator 1 and the ATTACK and
> SUSTAIN
> > values on the EG.
> >
> > What's happening is that we are 'granulating' the output of the
> > second oscillator. Each granule has it's own little envelope
but
> is
> > played at a rate below which we can detect pitch. Taken
together
> > the grains create a new timbre and texture.
> >
> > Cool!
> >
> > Try feeding ANYTHING into the IN of the VCA (guitar, vocals,
drum
> > loops, sequences). Paul suggested MiniWave, which is a great
> idea...
> >
> > Mike
> >
> > PS - Paul, the 700 doesn't work as well for 'chopping' as you
put
> > it, because the 'envelope' in AUDIO mode is fixed at 5 msec
which
> is
> > not that usefule in granular synthesis. Makes a cool weird
noise,
> > though!
> >
> > m