midiphy LoopA

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

Moderators: Kent, luketeaford, Joe.

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

midiphy LoopA

Post by latigid on » Sat Nov 30, 2019 9:01 am

We're happy to announce release of the midiphy LoopA 8-)
K-LPA-02aa.jpg




What is it? A compact six-track MIDI looper perfect for quick song and idea creation. It has a graphical noteroll UI and indicator LEDs to visualise playback. The timing is super tight of course and there are useful "effects" such as basic quantisation and note editing, to dynamic beat loops and transposition.

Basic usage here:
[video][/video]

Build tutorial here:
http://www.youtube.com/watch?v=Np1JAQpd ... e=emb_logo

Kits available now:
http://www.midiphy.com/en/shop/139/Loop ... ntial-Kits

User manual first attempt:
http://www.midiphy.com/files/468/midiph ... l_v205.pdf

Feel free to ask questions here or over at MIDIbox.

Have fun building!
Andy
Last edited by latigid on on Sat Mar 28, 2020 5:38 am, edited 1 time in total.

User avatar
Funky40
Super Deluxe Wiggler
Posts: 6149
Joined: Mon Nov 17, 2008 7:08 pm
Location: on a big voyage

Post by Funky40 » Sat Nov 30, 2019 9:35 am

interesting !

so i had to buy the essential kit ( incl. case) plus all parts from the listed mouser Bom and -------> i have *everything* , all parts ?
( without buying the greyed out parts, listed as a own mouser BOM)


then:
The metal case seems to deliver a slight bit more height ....for a slighly easier build, but the metal case will take until early 2020 to be available ?


is this so correct ?
has anybody a tip for a smaller, more private place to surf euro modular or "experimental electronic music making " as such ?
Or is there a place where the "old" wigglers meet again? please PM me
its too big here, can´t handle the timeload any longer

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Post by latigid on » Sat Nov 30, 2019 9:54 am

Hi!
Funky40 wrote:interesting !

so i had to buy the essential kit ( incl. case) plus all parts from the listed mouser Bom and -------> i have *everything* , all parts ?
( without buying the greyed out parts, listed as a own mouser BOM)
The essential kit contains PCBs and everything you can't buy from Mouser, so PCBs, keyswitches, keycaps, knobs, the MCU breakout board, LEDs, plus some hardware parts like M2 screws and standoffs. Then copy-paste the BOM text from the kit page into Mouser's tool and you have the remainder of the parts. You would also need a USB B cable and an SD card but I think that's it.

Of course, you might find a cheaper source or have some of the parts already, but we find this is a simple and convenient way to get everything nicely ordered with just a few clicks.
Funky40 wrote: then:
The metal case seems to deliver a slight bit more height ....for a slighly easier build, but the metal case will take until early 2020 to be available ?

is this so correct ?
The overall height of the metal case might even be a bit slimmer, as the acrylic one is 3mm for strength. If you are interested in the metal case, we suggest to build the main unit and you can order the case separately when it's available. It would take a matter of minutes to swap/upgrade to the metal case from the acrylic one.

Also, the Swiss pay no EU VAT :).

User avatar
Funky40
Super Deluxe Wiggler
Posts: 6149
Joined: Mon Nov 17, 2008 7:08 pm
Location: on a big voyage

Post by Funky40 » Sat Nov 30, 2019 9:09 pm

latigid on wrote:........., as the acrylic one is 3mm for strength.

Also, the Swiss pay no EU VAT :).
so we have 3mm from the pcb to the case for the solder joints/remaining legs of the parts after cutting ?
this sounds good enough that i don´t feel i had to worry

........no Vat for swiss: good to know !
but we find this is a simple and convenient way to get everything nicely ordered with just a few clicks.
Very important ! not only for me.


Thank you for caring ! much appreciated
has anybody a tip for a smaller, more private place to surf euro modular or "experimental electronic music making " as such ?
Or is there a place where the "old" wigglers meet again? please PM me
its too big here, can´t handle the timeload any longer

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Post by latigid on » Sun Dec 01, 2019 4:21 am

Funky40 wrote:
latigid on wrote:........., as the acrylic one is 3mm for strength.

Also, the Swiss pay no EU VAT :).
so we have 3mm from the pcb to the case for the solder joints/remaining legs of the parts after cutting ?
this sounds good enough that i don´t feel i had to worry
It's not much, but it works! Edit: the clearance to the acrylic case is quite tight at 1.75mm so the pins must be cut. But the case is plastic and non-conductive, so no risk there, just as long as the pins don't flex the case bottom downwards.
Funky40 wrote:........no Vat for swiss: good to know !
Well, you'll have to pay the Schweizerische MwSt, but probably it works out a bit cheaper.
Funky40 wrote:
but we find this is a simple and convenient way to get everything nicely ordered with just a few clicks.
Very important ! not only for me.


Thank you for caring ! much appreciated
No problem!

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Sat Mar 28, 2020 5:43 am

Hello, we just launched the metal cases. Now with our custom L4 superellipse keycap design :)

Full essential kits are available https://www.midiphy.com/en/shop-details ... ox-stm32f4

Have fun building and stay well!

Image

K-LPA-02b.jpg
K-LPA-02e.jpg
K-LPA-02d.jpg
K-LPA-02c.jpg

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Sat Mar 28, 2020 11:45 am

On the turntable:


TL072
Learning to Wiggle
Posts: 25
Joined: Sun Sep 06, 2015 3:42 pm

Re: midiphy LoopA

Post by TL072 » Thu Jun 04, 2020 10:08 am

Having just come across this in the last couple of days and getting quite excited about it as a possible addition to the setup, after reading what I can about it I had a question which i could not find an answer to. In many ways, I think it is not a deal breaker but I wondered about how LoopA behaves when a new set is loaded while another set is playing. Is there a break in playing? Would it be seam-less enough to switch during an continuous performance? If there is a break, is there a plan in a future update to get it continuous? Many thanks!

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Thu Jun 04, 2020 3:51 pm

Yep, everything is in stock and ready to go. Some shipping is still a bit difficult at the moment but things are opening up slowly.


TL072 wrote:
Thu Jun 04, 2020 10:08 am
Having just come across this in the last couple of days and getting quite excited about it as a possible addition to the setup, after reading what I can about it I had a question which i could not find an answer to. In many ways, I think it is not a deal breaker but I wondered about how LoopA behaves when a new set is loaded while another set is playing. Is there a break in playing? Would it be seam-less enough to switch during an continuous performance? If there is a break, is there a plan in a future update to get it continuous? Many thanks!
Thanks for the question. Yes, the sequencer keeps running while a new session is loaded and the LoopA retains the sequence position when loading! So if you are at step 100 of 128 and load a new session while the sequencer is running, the sequencer will continue to play at step 101 after loading completes. This feature can be used to "hot-swap" sessions. It depends a bit on SD card speed -- there might be a minor interruption but the sequencer will try to stay on beat. This is also true for saving sessions where you can save while the sequencer is running. Here the impact is a bit more severe, as SD card write access takes a bit longer. But after writing is complete, the sequencer will catch up and try to stay in tempo.

Rather than switching sessions, it might be better to use the "scene memory" to swap in a new set of clips. Of course, some of the elements can be copied from the previous scenes and so you can create variations on a drumbeat, modulate to another key or add in a synth line etc. Just use the upper left knob to switch to a new scene and six new clips will be launched. The switch will be synchronised to a full measure and without any interruption -- here the sequencer is guaranteed to stay on beat.

Another variation trick is to switch between stored and actual parameters for transpose etc.

If you really need to beat-juggle two whole sessions, then get two LoopAs 8-)

TL072
Learning to Wiggle
Posts: 25
Joined: Sun Sep 06, 2015 3:42 pm

Re: midiphy LoopA

Post by TL072 » Fri Jun 05, 2020 6:40 am

Many thanks for taking the time to get to the very foundation of my questions!

The funny thing is that it is hard for me to imagine fully using all 36 scenes in many cases but I would like to start to do performances at some point and it seems crazy to buy multiple sequencers for that if it can be avoided. As an aside, every other month there seems to be a new take on a monophonic analogue synth yet it is surprising how few jam/performance friendly poly-phonic sequencers there are when you start looking. Thus, I think you guys have filled a very nice gap with what looks like a very nice little device which looks neither too complicated nor too simple.

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Sun Aug 23, 2020 4:48 am

LoopA got a major software update and is possibly the most powerful MIDI looper available. Peter created a video that demonstrates many of the new features. Especially useful will be

longer clips (up to 1024 steps)
odd meters and time signatures
polyphonic step recording
single-clip scene progression (e.g. keep all melodies the same and add a drum pattern variation)

Enjoy!





And here is a cat enjoying the LoopA built for him (thanks Keelhauler!)
catloopa.jpg

DSC
Super Deluxe Wiggler
Posts: 2295
Joined: Thu Apr 11, 2013 11:54 pm

Re: midiphy LoopA

Post by DSC » Mon Aug 24, 2020 8:52 am

Have to admit, this last update might make me break down and get this little beast!
Last edited by Flatscan on Tue Jan 05, 2021 3:47 am, edited 1 time in total.
Reason: undoing the damage

User avatar
dooj88
Super Deluxe Wiggler
Posts: 2084
Joined: Sun Jan 29, 2017 7:31 pm
Location: VA
Contact:

Re: midiphy LoopA

Post by dooj88 » Sat Nov 07, 2020 6:55 pm

what would the build cost for one of these little baddies run?

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Sun Nov 08, 2020 3:07 am

Just checked: current Mouser parts come out at about 100€ (including EU VAT).

Also, yay, new metal cases are back in stock if you were waiting for one :).

User avatar
Modulus
Veteran Wiggler
Posts: 523
Joined: Mon Apr 07, 2014 3:49 pm
Location: Florida

Re: midiphy LoopA

Post by Modulus » Tue Nov 10, 2020 3:41 pm

I get the feeling that this is flying under most wiggler's radar. Watching the latest features video on youtube blew my mind. The workflow, UI, and features on this sequencer is seriously next level.

@Andy, can you tell me what uses are there for the gate input? Can it be used to reset & clock the sequencer or what else is possible?
Last edited by Modulus on Tue Nov 10, 2020 4:26 pm, edited 2 times in total.

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Tue Nov 10, 2020 4:22 pm

Thanks! Peter has done a really great job on the software.

If you have ideas for the gate input, let's compile a list and we can add it to a firmware release. Not quite at the moment because we're busy with the MatriX, but gate support must be added at some point. Normally if two or more requests for the same feature come in, Peter will bump the priority.

In essence any footswitch function (e.g. reset/JumpToStart; see user manual page 17) could also be assigned to a gate. Tap tempo/clocking is not quite in there but would be a nice feature.

https://www.midiphy.com/files/be6/midip ... _v207a.pdf

User avatar
Modulus
Veteran Wiggler
Posts: 523
Joined: Mon Apr 07, 2014 3:49 pm
Location: Florida

Re: midiphy LoopA

Post by Modulus » Tue Nov 10, 2020 4:29 pm

latigid on wrote:
Tue Nov 10, 2020 4:22 pm
Thanks! Peter has done a really great job on the software.

If you have ideas for the gate input, let's compile a list and we can add it to a firmware release. Not quite at the moment because we're busy with the MatriX, but gate support must be added at some point. Normally if two or more requests for the same feature come in, Peter will bump the priority.

In essence any footswitch function (e.g. reset/JumpToStart; see user manual page 17) could also be assigned to a gate. Tap tempo/clocking is not quite in there but would be a nice feature.

https://www.midiphy.com/files/be6/midip ... _v207a.pdf
Thanks Andy, Sounds great. I've actually got a loopa coming soon so the excitement is building.

I think I'll be able to get by using midi clock but will give it some thought. Any chance that it could accept a CV instead of just a gate? So for example CC values and other parameters could be modulated by an external envelope/lfo etc?

Also what can you tell me about the "big midiphy MatriX user interface extension"? :miley:

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Tue Nov 10, 2020 4:54 pm

Cool! The gate in is only a "dumb" digital input, so no real chance for CV sorry! Not even sure if there is enough memory to scan an ADC. Also, no op amp/scaling circuit for it... and the STM32F4 ADCs are notoriously bad/noisy.

We should get a *hopefully* "final" case top shortly. Then we'll be able to show you what it can do :). I can tell you that you could connect the MatriX to two SEQs, two LoopAs or one of each and switch between with a dedicated button (LoopA integration would need to wait for a later software release). Then you get two MatriCes for the price of... well, a massive control surface with 289 mechanical keyswitches!

User avatar
dooj88
Super Deluxe Wiggler
Posts: 2084
Joined: Sun Jan 29, 2017 7:31 pm
Location: VA
Contact:

Re: midiphy LoopA

Post by dooj88 » Tue Nov 10, 2020 5:17 pm

latigid on wrote:
Sun Nov 08, 2020 3:07 am
Just checked: current Mouser parts come out at about 100€ (including EU VAT).

Also, yay, new metal cases are back in stock if you were waiting for one :).
i suppose i could contact one of the builders mentioned on the page, but i'm not totally committed yet and was just hoping for a ballpark figure for a completed unit.

User avatar
Modulus
Veteran Wiggler
Posts: 523
Joined: Mon Apr 07, 2014 3:49 pm
Location: Florida

Re: midiphy LoopA

Post by Modulus » Tue Nov 10, 2020 5:17 pm

latigid on wrote:
Tue Nov 10, 2020 4:54 pm
Cool! The gate in is only a "dumb" digital input, so no real chance for CV sorry! Not even sure if there is enough memory to scan an ADC. Also, no op amp/scaling circuit for it... and the STM32F4 ADCs are notoriously bad/noisy.

We should get a *hopefully* "final" case top shortly. Then we'll be able to show you what it can do :). I can tell you that you could connect the MatriX to two SEQs, two LoopAs or one of each and switch between with a dedicated button (LoopA integration would need to wait for a later software release). Then you get two MatriCes for the price of... well, a massive control surface with 289 mechanical keyswitches!
Sounds epic. Will look forward to seeing what you guys come up with.

Cheers

User avatar
dooj88
Super Deluxe Wiggler
Posts: 2084
Joined: Sun Jan 29, 2017 7:31 pm
Location: VA
Contact:

Re: midiphy LoopA

Post by dooj88 » Tue Nov 10, 2020 5:18 pm

latigid on wrote:
Sun Nov 08, 2020 3:07 am
Just checked: current Mouser parts come out at about 100€ (including EU VAT).

Also, yay, new metal cases are back in stock if you were waiting for one :).
i suppose i could contact one of the builders mentioned on the page, but i'm not totally committed yet and was just hoping for a ballpark figure for a completed unit.
Modulus wrote:
Tue Nov 10, 2020 3:41 pm
I get the feeling that this is flying under most wiggler's radar.
these just hit my radar, the new features are fantastic.
Last edited by dooj88 on Tue Nov 10, 2020 5:19 pm, edited 1 time in total.

User avatar
Modulus
Veteran Wiggler
Posts: 523
Joined: Mon Apr 07, 2014 3:49 pm
Location: Florida

Re: midiphy LoopA

Post by Modulus » Tue Nov 10, 2020 5:19 pm

dooj88 wrote:
Tue Nov 10, 2020 5:17 pm
latigid on wrote:
Sun Nov 08, 2020 3:07 am
Just checked: current Mouser parts come out at about 100€ (including EU VAT).

Also, yay, new metal cases are back in stock if you were waiting for one :).
i suppose i could contact one of the builders mentioned on the page, but i'm not totally committed yet and was just hoping for a ballpark figure for a completed unit.
I went through a "trusted builder" in Canada and the total cost including labor and shipping(x2) was about 700$ USD. YMMV
Last edited by Modulus on Tue Nov 10, 2020 5:20 pm, edited 1 time in total.

User avatar
dooj88
Super Deluxe Wiggler
Posts: 2084
Joined: Sun Jan 29, 2017 7:31 pm
Location: VA
Contact:

Re: midiphy LoopA

Post by dooj88 » Tue Nov 10, 2020 5:20 pm

thanks Modulus! the price is definitely right for all these killer features!

User avatar
djthopa
Super Deluxe Wiggler
Posts: 1881
Joined: Thu Mar 22, 2012 5:48 pm
Location: Somewhere between a nappy and a wire

Re: midiphy LoopA

Post by djthopa » Fri Nov 27, 2020 5:38 pm

Hi!i just found this device:) congrats looks great!
One question, can i use it just for midi control change recording?
So i could have 6 tracks each with different cc waveshapes and cc numbers? Or this cc have to be linked to note data?
Sorry, need to read the manual in detail.
Thanks!

User avatar
latigid on
Ultra Wiggler
Posts: 985
Joined: Fri Oct 25, 2013 11:05 am

Re: midiphy LoopA

Post by latigid on » Fri Nov 27, 2020 6:17 pm

Thank you! Yep, you can record (or generate!) arbitrary CC waveforms or steps in their own layer per track. No need to link them to notes :).

Post Reply

Return to “Music Tech DIY”