email discussion between bakis(me...) and dieter
doepfer:

> hi dieter,
> so,that means that if i accidentally connect two cv

outputs,will i destroy

> the modules (i have done this mistake, some

times...)

no, please refer to my last message:
" ..... As there are short circuit protected circuits
or protection resistors in
the outputs of all A-100 modules you cannot destroy
anything within the A-100 by
connecting two outputs but the outputs will no longer
work as they should....."

> also,of course,you can mix two a155 cv outputs with

an a138 mixer,right

no. This would "add" the CVs and that is not what you
want. You have to switch
unconditionally as one of the 8 steps of the A-155 is
always adressed - even if
it stops (e.g. at step 8) while the second A-155 is
active - and the
corresponding CV of step 8 would be added ! It would
be necessary to switch the
unused A-155 to 0V and even this requires a VC switch
and would have no
advantages compared to the solution with the VC switch
that is used to switch
between the first and second A-155 outputs.

> one more question:dates of availability of the

a102,a109,a197 ribbon

Trautonioum manual (A198, not A-197) will be available
about end of November
(English manual will be not yet available at this
date). The A-102 and A-109 are
included with the next production series. I hope they
will be available in
December, but if there will be any problem during the
production (e.g. missing
parts) it will take until January 2003.

> controller,and OF THE TOUCH KEYBOARD SEQUENCER

due to the many different, partially
contradictory/conflicting suggestions (not
only from your group) we have problems to decide which
version we should
manufacture. The announcement of the A-154 made the
discussion still more
complex as some customers mentioned that all the
features of the A-154 should be
included with the Touch Keyboard Sequencer too. It is
really very difficult for
the TKB to find a solution that satisfies all
customers. We never had such a
problem with other modules. This is why the TKB is not
yet available and it will
still take some time. Our schedule is to wait until
the NAMM in January and then
decide the final version of the TKB (how many rows of
potentiometers,
arrangement of the potentiometers, number and type of
inputs, outputs, LEDs,
buttons, sequencer features, MIDI yes/no, polyphony
yes/no and how many, design
of touch plates like a keyboard or all of the same
shape like the Serge TKB,
and - and - and ....)

> also,WILL THE A107 MORPHILTER AND THE A154 SEQ

CONTROLLER BE RELEASED FOR

> SURE (about when )

Both will come definitely. Only the features, prices
and dates are not yet
fixed. As soon as the final features of A-154 or A-107
are fixed we will start
the development. For the A-107 we already have a
prototype but not with the
morphing feature but only manual switching between
some filter types, the types
are fixed by different resistor/capacitor values and
not variable with VCAs as
for the final version. The A-154 is only "in our
heads" so far. But as we are
familiar with PIC solutions (e.g. Pocket
Control/Fader/Dial) the development of
the A-154 is not really a problem for us as soon as
the final features are
fixed.


P.S. Today morning revised again the A-154 proposal:
An additional switch is
used to select 8 or 16 step length. And this is how it
works:

Provided that two A-155 are connected to the A-154 one
has two possibilities:
parallel (8 steps) or serial (16 steps) operation. In
both cases the A-155 will
run in parallel but in the 16 steps mode an A-150 VC
switch is used to switch
between the CV/trigger/gates of the first A-155 (step
step 1...8) and the second
A-155 (step 9...16). The A-154 has an additional
output available (labelled
"9...16/A4") that is used to control the A-150.

This solution requires no modification of the two
A-155 controlled by the A-154.

concerning your message in the group:

> hi joe,
> when you connect the a154 to the a190,all the
> functions/controls of the a154 work(vc/manual

running

> mode selection,vc/manual step adressing),except the

on-board vc clock.
right.

> the on-board vc clock still works
> but as an individual clock source,that you can use

to

> clock anything else...........another sequencer,a

s/h

> module,etc.this is where you use the clock out jack.

right !

> the on-board vc clock is internally connected to
> the step input of the control section of the

a154,but

> when you connect anything to the a154 step in,this
> connection is broken.

right, so-called "normalled" or "normalized" internal
socket connection.

> so,when you clock the a154 control section from the

midiclock via the a190,you

> DON'T have pwm nor vc speed of the clock.

right, vc speed of the clock would be a contradiction
to the MIDI controlled
clock. Either you want to have the clock MIDI
controlled (i.e. in sync with the
MIDI clock) or VC controlled (i.e. independent of MIDI
clock).

> AM I RIGHT ON ALL THESE,DIETER

yes.

... and here is my statement to another comment:

> Hi Bakis, since the A154 will be addressing the

stages of the A155's

> directly. i would to like see a LAST STEP RESET

SWITCH OR BUTTON

> added the A154.
>
> Why when you are using midi or the A154 controls to

start and stop

> the A155, you have to step thru all of the stages to

the last stage

> (i.e. step 8 or step 16) so it starts on step # 1 to

be in sync.

>
> a simple but very useful feature.

I think the "step 8 set" feature it is not necessary
for MIDI control of the
A-154. The A-154 will be designed so that it will work
in the desired way if it
is connected to clock out and start/stop out of the
A-190 (i.e. start with step
1). The start/stop output of the A-190 that has to be
connected to the reset
input of the A-154 ensures that the sequence starts at
step 1 as soon as the
MIDI clock and start signal appears.


If you want you may publish all these comments.

Kind regards
Dieter Doepfer
Doepfer Musikelektronik GmbH
http://www.doepfer.de
email: hardware@...







=====
synthfreak(parallel worlds)
athens-greece
1 group owner-moderator

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