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using m4L to create a controller interface (protodeck)

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using m4L to create a controller interface (protodeck)

Posted: Sun Sep 20, 2009 10:41 am
by julienb
hello,
I'm julien bayle (= julienb = protofuse)
Since the first day I used the python backdoor to connect things to LiveAPI, a lot of things have been done.

"max for live" brings us the power of max in live AND the officialization a support of Live API.

I almost finished a big midibox-based controller named "the protodeck": http://julienbayle.net/blog/protodeck/
The next step for me is to build a big interface patch in max for live in order to get feedback from Live to the protodeck & to control Live with the protodeck buttons and potentiometers.

does anyone want to be part of this adventure?
it won't take a long time, I guess, as live objects in max for live are very well designed to access to everything we want in Live.

the point is more about the interface itself.

Some choices have to be done about interface itself:
- storing values in the patch vs. grabbing data dynamically (some datas require one methode, some other don’t, I guess)
- managing LED blinking in the patch vs. in the firmware (the second one seems to be THE solution)
- how to “observe” an entire track for all events (clip creation, change of clip state etc)
etc…
A nice job could be to translate the python script I use and which is here: http://code.assembla.com/protodeck/subv ... Controller
it isn't finished and largely inspired/copy-pasted from the one of Mike/Noofny.

if someone is interested, just email me: [email protected]

Re: using m4L to create a controller interface (protodeck)

Posted: Fri Oct 23, 2009 4:55 pm
by julienb
I already did a lot.
But I'd need help for several part of my patch.

Pots management, buttons management work fine.
I use [midiselect] in order to use correct message from correct channel, CC number, correct midi notes with this or that pitch.

I have several problems with clips states subpatches.
The led management is ok! It is done by a subpatch that converts (x y color) message in midi note with particular pitch and velocity. It works.
Image


The problem is about the clips state observing.

1st idea: using playing_slot_index and fired_slot_index
2nd idea: using multiple abstractions like slotObserver, trackObserver and a big matrixObserver (idea from a wise guy, famous and called R S here)

in the 2nd idea, their is latency when I change the songIndex (used by each slots... so 8 tracks * 6 scenes = 48 slots)

what could be your idea? advice about that?
andrew adviced me doing that with JS.
would you use the 1st idea? the 2nd?

here are the patches from the 2nd solution.

slotObserver
Image
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-----------end_max5_patcher-----------

trackObserver
Image
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-----------end_max5_patcher-----------

matrixObserver
Image
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-----------end_max5_patcher-----------

Re: using m4L to create a controller interface (protodeck)

Posted: Sun Oct 25, 2009 7:33 am
by julienb
the clipslot observer subpatch for the protodeck could be this one.
if trackIndex or sceneIndex values change, then it gives the correct state of the led.

I have to use it on the whole 8x6 matrix
but I don't know how to use it .
how the data flow from 48 abstractions like that to only one output?!

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-----------end_max5_patcher-----------

Re: using m4L to create a controller interface (protodeck)

Posted: Sun Oct 25, 2009 10:25 am
by cassiel.com
Wow, that's an impressive bit of work. (I'm slowly learning how time-consuming it is to build one's own hardware.)

I wimp out and use prebuilt boxes: I have the monome 128 here and an Ohm64 will be arriving shortly. After that I'd like to get my old CM Motor Mix up and running again.

Re: using m4L to create a controller interface (protodeck)

Posted: Sun Oct 25, 2009 10:31 am
by julienb
the hardware part is almost finished.
not very hard
time consuming if you discover each part step by step (as I did) but a very interesting project.


the max part is now the hardest part for me.
not for pots and buttons handling, but for this f...g clip matrix part update from live to the hardware...

Re: using m4L to create a controller interface (protodeck)

Posted: Tue Oct 27, 2009 3:56 pm
by julienb
it seems to be ok now :)

here is the big patch, overviewed
if you want to see more in detail sub-patchs etc etc please private message or email :)
Image
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