Multi Touch Screen to OSC

Is there may somebody ho have experiance with OSC and a self build Multi Touch Screen?


The Tunk

 

I'm sorry that I don't have the experience with this to be of assistance to you, but I would like to hear more about your self-built Multi-touch screen.

Marc

 

it´s a realy simple way to build it. you yust nead a video-beamer and a half transparent plexiglas screen, usb kamera with infrared filter ore a Wii controler and some infrared LEDs.

aloa
Mike aka TheTunk

 

i can give you a hand with OSC. im pretty accomplished using it in Reaktor, and ive also programmed OSC in C++ using oscpack, plus ive made my own OSC implimentation in C# (Microsoft .NET).

my email is my name here, at yahoo dot com.

feel free to ask here as well, so others can learn. i must warn you ive been busy the last 2 months, but i try to get here as much as possible (hoping 08 slows down a bit, i hate neglecting my 'forum geek time' as my wife calls it).

 

I think the tough part is writing the algorithms to do the multi-touch. Realize that if you can detect mutlitouch, then a single finger press will return many locations that are all being pressed - but the fact that they are all "connected" means that they should all be considered as a single value.

Are hoping to use a Lemur-like lcd screen, or something like the rear-projection tables?

I personally have no interest in the latter, but if you are planning on doing the former, I too have many years of C++ / C# ? java programming experience and would love to help with that side of it **IF** you know where to get the screens and build the hardware!

Cheers,
C

 

Take a Flatscreen and Remove all and put a Cam under it.
Lets do it.
I build the Hardware. 50 used screens on ebay ? My Father is a elektronik prototype builder, so the Rest isn´t a problem.
two days ago, i wanted to remove the back from my Notebookscreen.
i can´t wait, but never programmed something...
So lets do it
Microsoft Multipoint SDK ?
I don´t know if it is limited to 10 USB Devices ?
I need someone like you, who know how to programm it. I´m very glad to read this here. Also Pure Data have already things like that i saw, but i don´t know, how to bring it to Reaktors Interface. I spoke with NI an hour ago about it, but i didn´t get any further, because i have no look through... Perhaps Microsofts Multipoint is the simplest first step. I really can´t wait.

What is about an modular Hardwarecontrollerinterface with octopusslurp(sorry, don´t know the english word) modules ? Put some Faders and Knobs or Joysticks on the Surface and tweak your own custom made Hardwaresynthie/controller !
Can you help ?
Would you have fun with it ?

 

Yeah... see, I'm looking for something with the touchscreen built in - like the lemur, not something that needs to be large - like the things that use a camera for detection.

There is a company that sells multitouch flatpanels, but they look pretty much "we only want to sell to OEMs"-ish on their website, so I never followed up.

In fact I'm not even sure what is their name is anymore.

Cheers,
C

 

a very small cam like it is in Mobiles in a difference of 10 cm could detect "how much" surface ? Try it with your Mobile. Or more than one cam side by side ?
If you find this company, you have to report it here!
One i know is the one of Jeff Hahn, i wrote him a letter, but no answer. He sells to CIA. Iphone too, i heard. I have to ask again...smile...
But the best way is: Sharp - Microelektroniks - new system LCD with image scanning funktion. just VGA Size, not yet available and also only to OEM, but this one is 1 mm thick and have a lightsensor in every Pixel.
Waiting ?
Experimenting ?

 

See the building forum for a recent thread of mine with a link to a scratching ensemble - but it really needs some kind of xy pad to work correctly - like a kaoss pad. Without that there's really not much point in trying to scratch with a mouse - it just doesn;t feel right.

As for touch screens like the one I'm talking about - I'm sure someone makes them as JazzMutant uses them in the Lemur:
http://www.jazzmutant.com/

..for the amount of time and money the project would take, maybe I should just get a lemur. I used one for about an hour one night and it was the most amazing thing I've played with in a long time - ridiculously fun (assuming you get it all set up well with whatever you're using it to control).

- CList

 

oh sorry, i didn´t reload the page and thought, nobody answer, so i deleted my message uuuh too fast too djhiov yes, i have a touchpad. I´m also searching a way to use it as a Drum pad with Finger or Chinesesticks... because, it´s pressuredynamik. You can get one and a Theremin at Synaptics, but they have no midi...
also i saw something at KVR...


ok i post again:

i want to sync the Tempo of my ensembles to Audioinputsource like an LP

LP ? Do you say LP in English... no, i mean Vinyl and generally i mean rythm input.
envelope follower ? and then ?

I spoke with NI today, if it would be possible to build a device like Traktor in Reaktor, perhaps by pressing a 60 hertzvinyl as Timecode or simply use ready timecodevinyl ?
They said, it would be possible, but perhaps not easy...

At first it would be enough to have something to sync Ensembles-bpm to Audioinputrythm... no, It would be great !

 

I don't know if you could do it in realtime.
Traktor has the advantage of being able to look ahead because it loads the whole audio file. Reaktor running as a plug in cannot do that, so there would have to be a delay between the when the audio first changes tempo and when reaktor senses the (proper) tempo.

Without understanding how traktor does it's beat detection, I don't know how you'd do it. It seems like you'd want to look for repeated patterns in certain frequency ranges. It'd be a tough project...

- CList

 

i want a lemur in the worst way. =)

i kind of misread this thread, i thiought you really just needed help getting going with OSC. im in no position to help building and designing such a thing - soldering? hell no.

 

If someone knows, how we get a lightsensitiv surface like a photofilm, that can detect each pixel, then we can place it under our notebookscreen. sharp is doing a study for this:
http://www.sharpsme.com/Page.aspx/europe/en/32ce432e-c7fb-4442-82d0-f53324201419
My hope is to place different Modules of them side by side on a magnetic surface... for smaller mobile devices or big Ones or like a puzzle. If you have a bigger one, you can have virtual turntables...

merry Christmas

Also, there are Touchscreenfoils for every screen, where are the Multitouchscreenfoils ?
This would be much cheaper than a 1000 $ Lemur...

 

my bet is that apple will put out a multitouch tablet in the not too distant future, but in the mean time here's a teaser.

http://createdigitalmusic.com/2007/12/10/control-pro-tools-with-an-iphone-or-ipod-touch/

 

Multi touch screens seems like hot topic

http://www.engadget.com/tag/multi-touch/

 

Well this is not a screen, only an input device, but wow this is very cool.... DIY multitouch finger controller.

http://ssandler.wordpress.com/MTmini/

Now if Behring get their hands on this..... I could save on the scotch.

I guess you could write some dots and line on the paper (or have several different) to get some reference markers.... I imagine having a tenori-on like sequencer.... or a lemur like mixer or an 8x8 drum pad player... or.....

Now where' my time warp machine to get the time for all these cool tools and toys....

 

Saved to favorites. I will have to track this. This is what my goal has been for last six months, project reaktor onto a screen like this and interact with it. This is what I want to do with all these graphics. I hope it will become possilble with would re-define what live interactive play mean for me.

I really don't understand all this stuff. The more that I read the less I understand, the reverse of what is supposed to happen. I image that something like this will be more use with MAX/MSP then reaktor at this point, one would probably need that any way much like the Lumar's do.

Have to keep an eye on it. Perhaps one of the people here with a better grasp of this and make something of it.

 

Somewhat in the same vein although a product that has been discontinued for a while.. Multi-touch USB pad

http://www.fingerworks.com/igesture_tech.html

I actually have one of these in a box that I need to dig out and play with.
---
These guys have also put together a DIY multitouch system that's basically a more formally designed reactable:

http://nortd.com/cubit/

Neat stuff.