ADDAC215 Dual S&H+

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monads
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ADDAC215 Dual S&H+

Post by monads » Tue Oct 22, 2019 11:17 pm

Recently announced ADDAC215

Image

From the site:

At it’s core it features a noise source and two precision Sample & Holds with 0.01% of maximum deviation from the Input which allows for quantized signals to be sent through without any noticeable detuning or the typical voltage drops over time.

The Sample & Hold sections can also be used as a Track & Hold meaning it holds the incoming input while the Trigger input is ON and lets the input flow to the output when the Trigger input is OFF.
Each section also features it’s own slew processor with a single control over attack and decay and an ON/OFF switch.

The noise signal is normalled to both sections inputs, meaning that without a jack plugged into the Input the sample and hold function will act upon the incoming noise signal generating random CV values.

The [Trigger A Alternate] switch allows to Link both sections so that any trigger input in Trigger A will alternate between triggering the A and B section.

Besides each section outputs there’s also 4 extra outputs: Noise, Difference, Average and Sum. The [Noise] output is coming from the noise source, the [Difference] output is the subtraction of section A minus section B, the [Average] output is the sum of both A plus B and then divided by 2 and finally the [Sum] output is the sum of both A plus B sections.

This module will also be available as a full DIY kit.

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Paranormal Patroler
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Post by Paranormal Patroler » Wed Oct 23, 2019 2:09 am

The important thing to note about this module is how effortlessly it can do rate-of-change with just a CV source and an incoming clock. The patch is described in the documentation which is available on the ADDAC System site. Another first for ADDAC!

:tu:
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Post by microfauna » Wed Oct 23, 2019 3:58 am

Good feature set. Flipflop Out instead of SUM would be good.

Any figures for "without" "the typical voltage drops over time" ?

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Post by Paranormal Patroler » Wed Oct 23, 2019 4:02 am

microfauna wrote:Good feature set. Flipflop Out instead of SUM would be good.
And what would the flip-flop output while it's in the typical (re: non flip-flop) option?
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peripatitis

Post by peripatitis » Wed Oct 23, 2019 4:22 am

this looks interesting.

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Post by microfauna » Wed Oct 23, 2019 4:26 am

Paranormal Patroler wrote:
microfauna wrote:Good feature set. Flipflop Out instead of SUM would be good.
And what would the flip-flop output while it's in the typical (re: non flip-flop) option?
flipflop :) (I like flipflops)
or ChA set ChB reset flipflop or clock and reset

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Post by Paranormal Patroler » Wed Oct 23, 2019 4:41 am

microfauna wrote:flipflop :) (I like flipflops)
or ChA set ChB reset flipflop or clock and reset
:mrgreen: I can tell you like flipflops! So do I and your idea isn't bad at all, but I like how you can plug a single CV source and conjure up three related CV outputs from a single module. Or plug no CV source, use the internal noise instead, and get three CV sources which are related to one another.
peripatitis wrote:this looks interesting.
It's super useful for sound design. The way I usually put this is that this module allows you to patch "pseudo-velocity" in Eurorack with no MIDI involved. :nana:
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Post by microfauna » Wed Oct 23, 2019 6:29 am

It would be great if the Slew switch was 3 way:
Off
post S&H
pre S&H (a la Serge Smooth and Stepped Generator)(and for Paranormal Patroler the flipflop Out would become A/B comparator :) )

or even just 2 way with the last 2 options


Joking apart I would have:
pre/post switch for Slew
FlipFlop Out (instead of Sum)
A/B Comparator Out (instead of Noise)

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Post by Paranormal Patroler » Wed Oct 23, 2019 7:07 am

microfauna wrote:It would be great if the Slew switch was 3 way:
Off
post S&H
pre S&H (a la Serge Smooth and Stepped Generator)(and for Paranormal Patroler the flipflop Out would become A/B comparator :) )

or even just 2 way with the last 2 options


Joking apart I would have:
pre/post switch for Slew
FlipFlop Out (instead of Sum)
A/B Comparator Out (instead of Noise)
Why not plug the slewed output of track 1 to the input of track 2 and then use S&H on that one, while track one is set to T&H with no hold applied?

Or get two ADDAC215's :mrgreen: :nana:

Comparators. Ha! You know me too well!
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microfauna
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Post by microfauna » Wed Oct 23, 2019 10:29 am

B Out could become Sum if nothing is plugged into A Out

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Post by danfastlikeflan » Thu Oct 24, 2019 12:16 pm

This looks super useful. Looking at the build guides are the DIY kits for ADDAC pre populated with the smd stuff? When will The kit be availible?

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Post by Estes » Sun Oct 27, 2019 2:41 pm

Hmm... I somehow cannot imagine this modules, what would you use it for?
I know what sample and hold does and I used my Sport modulator with external noise for kind of smooth stepped & random generator. But I don't know where this approach goes...

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Post by cloudleft » Sun Oct 27, 2019 7:38 pm

how could a rate of change patch as described in the manual be useful? I love the idea.

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Post by lightworks » Sun Oct 27, 2019 8:20 pm

I've tryed it already and it also sounds wonderful as an Audio Decimator

If you feed it an audio signal and clock the trigger with an oscillator at audio rates you'll have this rate reductions/bit crush effect.

so...with two channels, it's safe to say it's also a stereo Audio Decimator :hihi:

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Post by hinterlands303 » Mon Oct 28, 2019 12:10 am

Looks great. I’m guessing that if you put it in track and hold mode and don’t plug anything into the trigger input you can uses a channel as a simple slew limiter?

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Post by Paranormal Patroler » Tue Oct 29, 2019 7:32 am

cloudleft wrote:how could a rate of change patch as described in the manual be useful? I love the idea.
The idea of the rate of change is to apply it to controllers, or voltages that shift and move. For instance, adding the ADDAC215 to a Krell patch would be brilliant! Just have the figure out the rate of change of your ever shifting envelopes, and use that to open the filters for additional realism.

I use it with my controllers, as an indication of velocity. I call it the analog pseudo-velocity sensitivity (TM) :mrgreen:
hinterlands303 wrote:Looks great. I’m guessing that if you put it in track and hold mode and don’t plug anything into the trigger input you can uses a channel as a simple slew limiter?
Yeah, I don't see why not. Dual Slew limiter.
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Post by behndy » Wed Oct 30, 2019 11:54 pm

annnnnnnd have one on order.
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Post by izmond » Thu Oct 31, 2019 8:23 am

behndy wrote:annnnnnnd have one on order.
Where did you order from? I can't find them anywhere.

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Post by Paranormal Patroler » Thu Oct 31, 2019 8:36 am

izmond wrote:
behndy wrote:annnnnnnd have one on order.
Where did you order from? I can't find them anywhere.
You can order directly from ADDAC System. They ship everywhere.
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Post by behndy » Thu Oct 31, 2019 9:31 am

exactly! they said it should be heading out mid-November.

they're the NICEST of humans.
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Post by joem » Thu Oct 31, 2019 5:17 pm

Is the DIY kit on the site? Or is the DIY one not released yet?

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Post by cloudleft » Thu Oct 31, 2019 5:30 pm

Paranormal Patroler wrote:I use it with my controllers, as an indication of velocity. I call it the analog pseudo-velocity sensitivity (TM) :mrgreen:
that's a great idea! the applications for a rate of change patch are becoming clear to me.

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AbundantChoice
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Post by AbundantChoice » Thu Oct 31, 2019 10:23 pm

This thing looks great. It's like all the extra stuff you'd want a S&H to do, but nothing really extraneous that bloats up the HP. Killer.

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Post by cptnal » Wed Nov 27, 2019 10:39 am

Any word on these guys yet (particularly addressed to behndy if you have one on order)?
Is it finished?
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Post by behndy » Wed Nov 27, 2019 4:36 pm

lop. nope! they said it should ship Mid November, that has passed but i havna hit them up yet. i've had a TON of new loot i'm grappling with getting my head around, so just being The Patient with the ship date?
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