Hawkeye

LoopA V2 Introduction, Features & Support Thread

36 posts in this topic

It's really a great little box! We'll order another set of prototype PCBs in the next day or two, then after the SEQ is all sorted we can think about getting the LoopA to a ready state.

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@latigid on I'm excited to see the new sequencer as well and will certainly buy a kit as soon as it's available. This looper project though... It's just the bee's knees.  

I might be savvy enough to build a prototype PBC, if you offered one to me: At the very least, I could let you know the pitfalls that an idiot might expect in building one ;)... Actually a big element of my job is technical writing, so I could probably truly assist in helping to develop the build manual: Give me a schematic, some nod at the idiosyncrasy of the BOM and a PCB and I could pump that out. ...If you wanted. No pressure... 

The very second that you guys feel comfortable releasing it into the wild, I'll take three!! (and I bet I'll feel like that's one too few). I'm loving what you're doing. 

As my thesis professor used to say, "Keep going",

dugan

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Thanks for the kind words, Dugan!

As a small update: with a bit of luck, the final version of LoopA PCBs and a few acrylic cases (with minor updates) are rolling in in the next days. If there is a problem, we will go for another round, no worries! :)
Also, the webshop selling all of that just opened, so, good progress is being made!

We have to verify, that the new PCBs work. Then you can build your own, any docu work is welcome! We will definitely also create a video build tutorial like for the new Seq V4+, but it will for sure take quite some time, underestimated the last tutorial for the V4+ (and the second part needs to filmed, too). In short words, a LoopA photo tutorial or build manual would be a good thing, thanks for considering to help out with the documentation!

Best regards and have a great weekend!
Peter

 

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Is it possible to record note data and then overdub CC data on teh same track? For those with only two hands. :)

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No CC support as of yet! For that, the bigger SEQ or the CC Looper from Phatline are the best choices at the moment!

(As it is a feature that sounds really cool, e.g. for nice recorded looped filter sweeps, that could even be graphically displayed, it might be added in one of the next versions. Then, "CC" would be a track type, similar as on the SEQ, it could not be overdubbed with a note track for memory reasons, but would need to be recorded on a dedicated track. That will also help to visualize it better).

Many greets,
Peter

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14 hours ago, Hawkeye said:

No CC support as of yet! For that, the bigger SEQ or the CC Looper from Phatline are the best choices at the moment

at the momemt...i am not sure:rolleyes: ... will  take some time to finish. decidet to give fpga a try. not sure if it is a arm or fpga task.

much time ideas possibilitys and ways... phat.

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I definitely want one of these & am happy to build it myself.

my cirklon is #003, give you some idea of how into hw sequencing I am. I have three mk1 notrons, nemo, two P3s, v4 & so on.

but nothing like this. I've done poly midi looping on the P3 many times, so when the cirklon arrived, I asked colin to make a little tweak to the way the new polyphonic section does live-record/looping; each subsequent pass, the velocity of the recorded notes is reduced by a defined value... initially, this was to emulate the old 'frippertronics' style tape-delay behaviour, but I quickly started using it on patches with a velocity crossfade, so that (say) the piano would morph to a string sound or else get more reverb or go out of tune. just thinking out loud.... but it would be a neat trick, no? :-)

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@duncandisorderly Thanks for your kind words, and yes, we are working on the LoopA. Even if the new v4+ has the first priority still at the moment, but it should hopefully all be done and settled in October/November.

We now have the (hopefully) final PCBs waiting for validation. Also, we have slightly improved the acrylic case and added "interlocking" mechanisms to further clamp it down better (in the middle of the case), just as recommended by @Antichambre. The acrylic case should also not be expensive, somewhere in the range of 40-50€, so that this unit will be affordable.

We're also open regarding new and exciting "uncommon" firmware features, that not every sequencer has, thanks for your suggestions! But let's get some initial units out, first :).


Find a few PCB shots of the three to-be-stacked and hopefully final LoopA PCBs attached:

LoopA Core PCB v1.1 - note the additional 6N138 optocoupler for a third MIDI IN (2 normal INs, one BLM) and the moved SD-Card slot that would open up an option for a nice "pro" metal case made my Adrian (with wooden sidepanels) :). But nothing confirmed, yet, just the acrylic variant for now.

6949d86b103f4baa5484d7facfa0af94.jpg

LoopA Base PCB v1.1, with improved interconnectors

2c980b880317cb462358428963205612.jpg

LoopA Plate PCB v1.1, with support for two different OLED manufacturers:

46ed5f7b7b4185d5509c7d5b16c30e30.jpg

Many greets and enjoy!
Peter

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It seems you put CV/Gate Outputs :) Great!
Add it in the Main features list, this is an important point.

 

Edited by Antichambre

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1 hour ago, Antichambre said:

It seems you put CV/Gate Outputs :) Great!
Add it in the Main features list, this is an important point.

 

Actually only inputs are supported, you'll need a converter to use CV/gate. In principle it could be done as all expansion headers are there. I don't think the software handles CV and there is not much push from our side to squeeze it into the current box. A bigger unit might work.

On that point, this represents another Core with DIN MIDI onboard. We could consider other "stackable" add-ons for small synths or controllers. 

Edited by latigid on

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Yes of course it needs more than 5V power supply for CV purpose. :blush:

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