New sequencer trix
R.Fahl
8brain at spiritone.com
Thu Aug 14 09:03:59 CEST 1997
Whilst working on the mini sequencers for my new mods I ran into a problem
where they would clock off LFO square waves, but not VCOs (amplitude too
low). Instead of getting mad, I got even and stuffed a comparator between
the clock input and the counter IC and now the sequencer will clock off
anything. Hold a mike up to it and fart across the room. It will hop a
few steps.
Now, you may wonder - what is so amazing about this? Well, first I thought
Hmmm, now I can use any waveform to clock these little monkeys, sine,
triangle, saw.... but then it finally dawned on me: pump white noise into
the sample and hold and use the S&H output to clock the sequencer! Need a
little jazz to loosen up a groove? This will scratch your itch.
One thing I really like doing is clocking the S&H and one sequencer off the
same clock, then clocking another sequencer off the S&H's output. I knew
I'd never miss those ivories. Sequences sound incredibly improvised now.
Umberto the Buccaneer
"One aspect shared by early analog synths was the instability of certain
components, most obviously demonstrated by pitch drift in the oscillators.
Some synths were more stable than others. The question was, what did the
manufacturer consider a tolerable amount of pitch drift? 'We felt that it
was more important for the Buchla synth to have lots of things that were
slightly less stable than to have it be so expensive you could only afford
a few modules,' says Subotnick. 'As I recall, the determination of how long
the oscillators would stay in tune was how long a violin stayed in tune in
a concert. I figured if you had to retune a violin halfway through, why not
an oscillator?'
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