There’s plenty of rightful skepticism about the use of mainstream displays for multitouch in general purpose computing. And why not? As a full-time replacement for other input, multitouch probably doesn’t make sense. But for music, the equation is changing. Multitouch capabilities are showing up on commodity-priced PC computers like the multi-touch enabled HP laptop models – the tx2z seen here starts, incredibly, at US$850. And because computer musicians are looking for more control, having a touch-enabled display (even single-touch) just makes sense.

The screen for a laptop musician is a huge piece of real estate. Finally, instead of sitting dumbly in front of you glowing, it can become an X/Y controller or give you shortcuts for controls or provide additional parameters. Yes, using a touchscreen exclusively can result in the dreaded “gorilla arm.” The ergonomics of using a vertically-oriented screen are extremely poor – if you use it exclusively for an extended period of time. But if you look at the way people are using these touchscreens, for incidental control in combination with other things – and the ability of convertible laptops to transform into a horizontal orientation – I think this is no longer the deal killer it once was.

At top, an HP laptop ($850) plus the free version of Sensomusic’s Usine is all you need to create a multitouch interface for Ableton Live. Correction: right now this is limited to single touch only, but multitouch is supported in the hardware, in drivers, soon in Windows 7, and support is promised for a future version of Usine. The point still stands — as does the ability to optimize controls for your fingers. Being able to use more than one at once will, of course, be that much better.

Fractal (see Myspace) uses the combination to play Ableton Live with some simple controls. If you get hooked on Usine, you can get the full “Pro” version for EUR70 with additional patches and objects.

The one major remaining obstacle to multitouch, at least, is cost. If you don’t especially fancy buying a new HP laptop, add-on kits still run in the range of US$800-900 (meaning, ironically, you might as well just buy the HP instead). Laptop vendors are still slow to adopt the technology, though that could change when Windows 7 ships later this year. (On the other hand, tablet PCs, even when they were shipping in relative quantity, often were constrained in available configurations and either skimped on specs or demanded a significant premium.)

But let’s not complain too much. The simple reality is you can add an HP laptop now to a live rig as a performance instrument for under a grand.

Okay, Google Android fans — your apps are starting to arrive, especially as Google continues to improve the SDK.

First up, here’s a demo of the new app FingerPlay MIDI, which turns Android into a simple touch controller. True, we’ve seen similar things on iPhone, and Apple’s platform has precise multitouch which Android lacks, but it’s nice to see the concept extended across platforms. Big thanks to postromantic on Twitter for the tip! (Follow cdmblogs for more.)

FingerPlay MIDI

I can’t tell yet if this will be open source – that would actually be nice, I think, as it’d allow the community of developers to have a shared set of tools. (In fact, it seems a logical model would be to cash in on general-market apps and open source the more music-specific, niche stuff.)

In other Android mobile news, Christopher Souvey continues to work on his Musical application and the Musical Pro desktop app. The desktop client works with MIDI over Wifi, and thanks to the Cupcake OS update, latency is greatly reduced after a complete rewrite and the creation of custom drawing and event handling and controls. Check out the slick new tuner and UI Christopher has been developing, too.

http://www.souvey.com/ [blog with all the latest]
http://www.souvey.com/musical/

This play-along piano is probably not something any of you folks desperately need, but it is a good demonstration of what’s possible.

Another interesting thread to follow will be the growing power of Web apps. On Android, you’re already able to combine a Web app with the Java APIs, and going another level, mobile apps with native ARM code for the processor. Translation: while phones still have a fraction of the power of your computer, it’s getting easier for developers to work across platforms and to take advantage of what power is there. That’s leading to trends that could be of use not only to a single platform (Android, iPhone), but to mobile devices in general.

The beauty of using touch for controllers is flexibility. Sure, you give up tactile feedback – but you can also quickly make your own layouts, make touch controllers an ideal complement to your existing hardware gear (the stuff with physical knobs and faders and pads).

For that reason, we’re all eagerly anticipating an upcoming version of the awesome OSC-based iPhone/iPod touch controller, TouchOSC.

http://hexler.net/software/touchosc

The included layouts are already fantastic, with rotaries and virtual buttons and multi-faders and toggles and X/Y pads. But custom control would be even better. Creator hexler writes CDM with the latest:

The long-awaited update to TouchOSC that will allow for custom layouts has just been submitted for review to Apple,
so I hope that as soon as next week it will be available as a free update to all users on the App Store.

Together with this release (1.3) there will be a free editor application to visually design and upload layouts to the device. You can take a look at the last beta version I published if you want, there’s both Windows and OS X versions available, but I will also prepare a Linux version as soon as possible, of course without the new version of TouchOSC this is but a preview of things to come:

http://dev.hexler.net/touchosc/touchosc-editor-0.7-osx.zip
http://dev.hexler.net/touchosc/touchosc-editor-0.7-win32.zip
http://dev.hexler.net/touchosc/touchosc-default-layouts.zip

And nicely enough, the editor is built in cross-platform Java, which I think makes a whole lot of sense. (Go Java, Python, etc., rather than getting stuck in hard-to-port platform-specific stuff like Cocoa.)

Thanks, hexler! I don’t have a video of the new features yet, so instead here’s a nice novelty – the beginnings of a creation using the free SuperCollider (which runs OSC natively) in combination with TouchOSC to make a custom step sequencer. Should fuel other ideas, too:

No doubt about it: touch is coming to more screens near you. But there’s no need to disappoint your current beloved laptop. $200 kits can turn your laptop into a functioning touchscreen.

Now, as I’m working with JazzMutant’s Lemur this week, before you get excited, this is no Lemur – or even anything like your iPhone or iPod touch. Sensitivity and accuracy are workable, but not exceptional, the overlay is pretty simple (as you can see in the video) rather than integrated with the display, and this is single-touch only — not multi-touch. Lastly, on a conventional laptop that isn’t convertible, you may miss the ability to fully extend your laptop perpindicular to your body. (Having the screen be parallel can put your arms in a fatiguing position.)

But that said, there’s a lot of potential once you have the ability to reach over and make quick gestures on a laptop screen that control a set. You might make your own instruments and effects or controller dashboards in a tool like Processing or Reaktor. And at $200, this could be a brilliant way to retrofit a machine and breathe new life into it. There’s support for Mac, Windows, and Linux; you just plug in via USB.

One of the problems with touchscreens is that, even as they have become more sophisticated about tracking multiple fingers at once, they still generally don’t respond to pressure. To make touchscreens really useful for music, we need genuine pressure sensitivity.

For that reason, you may be intrigued to see this video of Zen Piano, a demo app for the iPhone and iPod touch. The idea: respond not only to the position of your finger taps, but also to how hard you’re tapping the phone That promises “velocity-sensitive” tapping, which would make touchscreen interfaces more powerful.

Here’s the somewhat overheated description by GreatApps, who say their “patent-pending,” “cutting-edge” technology is the result of “having gone through the research and development phases.”

TapForce^TM has been developed from the ground up to provide a completely intuitive way of interaction for users. It can detect more than a hundred different levels of force, and has an accuracy that has to be seen to be believed. And all this can now be done in software, no hardware modifications are necessary. Hundreds of millions of devices currently on the market can make use of the TapForce^TM technology today.

A whole new range of games and apps has just been made possible.

http://greatapps.co.uk/technologies/

Okay, so what is it doing, exactly?