Doepfer

I did some earlier experiments clocking the A155 from the A147. Its 
really quite powerful, being able to control the duration of each step 
using the bottom row of A155 knobs.

I'd like to get back to this, and I'm trying to think of a way to sync 
it up with midi. Has anyone devised a workable approach to this?

Joe

hmm sounds very interesting..

wish i had a 147 to try this. 
what happens when you retrig the 147 with a divided-down midi 
clock that's heavily attenuated?   or to somehow 'override'  the 
retrig periodically w ADSR cv?  (a job for 166?) or perhaps 
mutate the divided-down clock signal somehow to make it hard 
for the 147 to be retrig'd consistently, but still within adequate 
relation to tempo, if somewhat random..  there might be a 
combination w just enough tempo info and conflicting length info 
to keep things half on/off track.  

i imagine that if you had true sync, the step length control values 
from the 155 might get stale once quantized.  (that is, if it's even 
possible).  but that's better than not having step length control at 
all.  i'm having a tough time getting my head around a patch that 
allows this 155>147>155 loop within a tempo grid.

which reminds me..i often wish for a way to catch or 
record-and-loop odd/quasi-random cv control signal cycles 
within patches such as these.  many times during a 
semi-random response from the 155, the perfect rhythmic 
phrase comes out for a few cycles but is just too irregular overall 
so it gets recorded and edited later as audio.  i wonder if it's 
possible to make something like a cv 'repeater'  (you know, like 
that electrix thingy)  to run on the output of the 155 (or whatever) 
so we can more easily break/destroy the 16th note grid and stay 
in sync.

with all this automatic bpm, self-looping audio software out 
there..i can't help but fantasize about something that can loop 
record and regenerate cv rather than audio.

but back to the subject, very interested in joe's idea here.

-duff


  

--- In Doepfer_a100@y..., "buechlerjoe" <buechlerjoe@t...> 
wrote:
> I did some earlier experiments clocking the A155 from the 
A147. Its 
> really quite powerful, being able to control the duration of each 
step 
> using the bottom row of A155 knobs.
> 
> I'd like to get back to this, and I'm trying to think of a way to sync 
> it up with midi. Has anyone devised a workable approach to 
this?
> 
> Joe

I guess at a minimum, I could always just sample the phrase, and 
trigger the sample via midi. I'm thinking that it should be possible 
to simultaneously reset the A147 and A155 at the beginning of the 
phrase, probably by patching a divided clock thru the trigger delay 
module to create a very brief reset signal. It would be mixed with 
the midi reset, probably an A180 would do.

This wouldn't respond to midi tempo changes, but would probably be 
adequate. I'll give it a try at home later.

Now I'm wondering if the VC divider wouldn't do this job better 
than the A147. Note-level sync and quantization into the bargain. I 
don't have the VC divider module, though.

CV sampling, there must be a way to do that with existing digital 
audio gear? How about using a VCA to modulate an audio tone 
with the CV, record the audio digitally, then play it back through the 
A119 to recover the original CV via the envelope follower jack?

Joe
--- In Doepfer_a100@y..., "duffnuff" <duffnuff@h...> wrote:
> hmm sounds very interesting..
> 
> wish i had a 147 to try this. 
> what happens when you retrig the 147 with a divided-down midi 
> clock that's heavily attenuated?   or to somehow 'override'  the 
> retrig periodically w ADSR cv?  (a job for 166?) or perhaps 
> mutate the divided-down clock signal somehow to make it hard 
> for the 147 to be retrig'd consistently, but still within adequate 
> relation to tempo, if somewhat random..  there might be a 
> combination w just enough tempo info and conflicting length info 
> to keep things half on/off track.  
> 
> i imagine that if you had true sync, the step length control values 
> from the 155 might get stale once quantized.  (that is, if it's even 
> possible).  but that's better than not having step length control at 
> all.  i'm having a tough time getting my head around a patch that 
> allows this 155>147>155 loop within a tempo grid.
> 
> which reminds me..i often wish for a way to catch or 
> record-and-loop odd/quasi-random cv control signal cycles 
> within patches such as these.  many times during a 
> semi-random response from the 155, the perfect rhythmic 
> phrase comes out for a few cycles but is just too irregular overall 
> so it gets recorded and edited later as audio.  i wonder if it's 
> possible to make something like a cv 'repeater'  (you know, like 
> that electrix thingy)  to run on the output of the 155 (or whatever) 
> so we can more easily break/destroy the 16th note grid and stay 
> in sync.
> 
> with all this automatic bpm, self-looping audio software out 
> there..i can't help but fantasize about something that can loop 
> record and regenerate cv rather than audio.
> 
> but back to the subject, very interested in joe's idea here.
> 
> -duff
> 
> 
>   
> 
> --- In Doepfer_a100@y..., "buechlerjoe" <buechlerjoe@t...> 
> wrote:
> > I did some earlier experiments clocking the A155 from the 
> A147. Its 
> > really quite powerful, being able to control the duration of each 
> step 
> > using the bottom row of A155 knobs.
> > 
> > I'd like to get back to this, and I'm trying to think of a way to 
sync 

> > it up with midi. Has anyone devised a workable approach to 
> this?
> > 
> > Joe

> Now I'm wondering if the VC divider wouldn't do this job better 
> than the A147. Note-level sync and quantization into the 
bargain. I 
> don't have the VC divider module, though.

yes, that would be great.  does anyone make a VC divider? 

as an experiment i tried setting up a similar self-modulating loop 
using the 113 as a divider whose output drives the 155.  i'm very 
pleased w how it works..

joe, i remember you saying you didn't have a 113 but i'll go 
ahead and relay this anyway in case any 113/155 users are 
interested... 

send midi clock to 113, 113 output to 155 clock input.  on the 
155, send trig 1 and 2 to trig delay to transform them into gates.  
then run the outputs of these gates into the 113  foot cntrl 1 and 
2.  

now you can change the divisions of the master clock by 
selecting a new mixture (w gate switches from 155), so a step 
length can be changed as a result of  a new momentary clock 
division value (this feeds the 155, controls speed).  sort of like 
having a cv divider but not really. 

the 113 will change the division values (thus 155 clock values) 
according to presets (selected by gates) so the values jump 
when selected instead of changing continuously,  works great for 
holding out steps or making some steps quicker.  it takes some 
experimenting to get the phrase to add up to say, an even 8 
counts before repeating.

all we're really doing is speeding up and slowing down the 155 
to make it seem like some steps are longer or shorter.  it will 
remain in sync and responds to tempo changes but it's tricky 
keeping the phrases aligned when playing around.

also, the 113 has 4 discreet divisions available at once so i'm 
sure you could use a 147 to good effect modulating something 
else while in sync, even at a different speed.

-duff

> does anyone make a VC divider? 

I was thinking of the A163, I haven't paid enough attention to the 
A113 to realized that the foot controller jacks could be used the way 
you described.
 
> joe, i remember you saying you didn't have a 113 but i'll go 
> ahead and relay this anyway in case any 113/155 users are 
> interested... 

No A113, no A163, no nuttin'

I also realized that the A192/A191 would be a better solution to your 
CV sample/loop question, using a midi sequencer as the sampler/looper.

Must ... resist ... getting another ... A100 frame...

Joe

Hmmm,
Not sure if I quite understand what effect you're after here but...
When I sequence using the A-155 I always use a Gate signal from my 
computer Sequencer to keep it in time with midi, this also makes it 
VERY easy to change note lengths.
You can also make the A-100 a different midi channel to the A-155 so 
you can trigger the envelopes and A-155 seperate, kind of random 
notes in time.

I've had a VC Divider for a long time but yet to find a useful use 
for it, this is down to me not having enough time recently.
In fact forget the net I'll play with my A-100 instead, disconnect 
and play.

If anybody has any useful tips for the VC Divider I would appreciate 
it.

Bye!