dieter say:
"I'm just back so there are no news since my last
email. The A-105 will be manufactured with the next
series of A-100 modules. So I hope it will be
available end of May (without obligation). The A-107
will still take some time as we have to wait for the
new prototypes of the pc board and the front panel
before we are able to integrate the A-107 into the
production line. So the A-107 will not be able before
June (without obligation).
During my holidays I dealed a little bit with the
different features of the two Buchla SOUs 265 and 266.
From my point of view both versions are very
interesting. We think about a module (or even more)
that include the features of both modules. E.g. the 2
power N and 2N+1 was not available for the 265. We
also think about more outputs (e.g. the "noisy
triangle" output) of internal functions of the SOU.
Any ideas from the group, especially from
users/experts of both 265 and 266 SOU. At the moment
it is a little bit a problem for us to find out which
functions are more or less useful for A-100 users. We
understand all the electronics of both Buchla SOUs
(different noise and random sources, S&H's, low
frequency vactrol filters and LFOs). But we have some
problems to see the musical applications of all these
functions. E.g. we understand how the 2 power N and
2N+1 voltages are generated but we cannot see what
they do in musical respects. OK, they are quantized
analog voltages derived from the outputs of a shift
register that works as a slow digital noise (like a
slow A-117 with different weighed shift register
outputs) but what does this mean from the musical
point of view - e.g. compared to an A-118 random
output processed with the Quantizer A-156. If anyone
has available the user's manuals of 265 and 266 (not
the schematics) this would help us to understand the
musical side of the circuits.
B.t.w. the SOU use vactrol techniques too (low pass
filter, rectangle oscillator) so that we could combine
a little bit the vactrol and SOU research. But
probably we will do some jobs of the SOU with
microprocessors (e.g. digital noise, 2 power N and
2N+1). But the filtering will be pure analog with
vactrols."
SO, IF ANYONE CAN HELP DIETER ON THIS...
BAKIS.
=====
synthfreak(parallel worlds)
athens-greece
1 group owner
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