Browse Prior Art Database

TactBall, a multipurpose percussive 3D (MIDI-)Controller

IP.com Disclosure Number: IPCOM000029300D
Publication Date: 2004-Jun-22
Document File: 3 page(s) / 6K

Publishing Venue

The IP.com Prior Art Database

Related People

Michael Egger: INVENTOR

Related Documents

www.anyma.ch/tactball: URL

Abstract

The TactBall is a Human-Computer-Interface designed to control live performances (music / video / light /...). An elastically suspended half-sphere is used to move magnets in 3 axis, whose magnetic fields are sensed by Hall-Effect sensors and translated to performance control data by means of a microprocessor. The TactBall can be operated with one or two hands - can be slapped or pushed/pulled or just slightly touched, is very sensitive and can be used simultaneously in a percussive-trigger-like manner (as a drumpad, for example) and in a continuous-controller-like manner (as a mod-wheel and the like).

This text was extracted from an HTML document.
This is the abbreviated version, containing approximately 52% of the total text.

TactBall, a multipurpose percussive 3D (MIDI-)Controller

About this Document

Author

Michael Egger
[ a n y m a ]
Route de la Fonderie 8c
1700 Fribourg
Switzerland
me (at) anyma.ch
+41 79 278 31 39

Version

Version 1.0- Last modified: 17.06.2004

Copyright

© 2004 Michael Egger

URL

The TactBall - project is maintained by [ a n y m a ].
For latest sources, documentation, feedback etc. visithttp://www.anyma.ch/tactball

Abstract

The TactBall is a Human-Computer-Interface designed to control live performances (music / video / light /...).

An elastically suspended half-sphere is used to move magnets in 3 axis, whose magnetic fields are sensed by Hall-Effect sensors and translated to performance control data by means of a microprocessor.

The TactBall can be operated with one or two hands - can be slapped or pushed/pulled or just slightly touched, is very sensitive and can be used simultaneously in a percussive-trigger-like manner (as a drumpad, for example) and in a continuous-controller-like manner (as a mod-wheel and the like).

For the time being, it uses MIDI as its communication protocol because of its large distribution and simplicity - other (open-) protocols could be adopted in the future...

License

TactBall is free hardware (as in "free speech" not "free beer"). This document as well as all documentation on the project (hardware designs, source code, ...)is published under GNU GPL; you can redistribute it and/ormodify it under the terms of the GNU General Public Licenseas published by the Free Software Foundation; (where "source code" shall be replaced with "this document" and "program" with "any device built or manufactured according to this document")either version 2 of the License, or (at your option) any later version.This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this document; if not, write to the Free SoftwareFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.http://www.gnu.org

Preamble

Finding new ways to interact with computers is crucial for pushing further computer-assisted performing arts. Mice are nice tools in a non-realtime environment, but pointing and clicking has very little emotional/expressive value.

I developed the TactBall initially as a part of the VideoBass (see: http://www.anyma.ch/videobass), for triggering and mixing video-sequences with the right hand. I think the device has much more potential: controlling sound-parameters, triggering light effects, or whatever you might find useful... So this is going to be a VideoBass - spin-off project...

It's a very simple design, easy to build, very cheap...