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Subject: Re: Granular Synthesis on MOTM

From: "mmarsh100" <mmarsh@...>
Date: 2002-07-12

Yes, that was TM - good ear, George! MP3s are kind of a pain, but
they are easy to distribute. I think there are phase prblems with
MP3s. There is a plug-in that corrects this somewhat but I haven't
laid out the cash for it. I think of it as a Xerox copy of the
original. Enough info to give you an idea but not good enough for
formal publishing. Doesn't stop some, though, does it? :)

Mike

--- In motm@y..., <groovyshaman@s...> wrote:
> Very cool Mike. Hmmm...I wouldn't be surprised if the MP3
encoding process
> loses some of the detail and therefore the timbre is a bit off.
(I guess
> this could be checked by playing the mp3 through the scope.) This
is a good
> starting point for more complex sounds. Did I hear some Time
Machine in one
> of those clips? That one sounded wack.
>
> George
>
> ----- Original Message -----
> From: mmarsh100 <mmarsh@s...>
> To: <motm@y...>
> Sent: Friday, July 12, 2002 2:08 PM
> Subject: [motm] Granular Synthesis on MOTM
>
>
> > 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