Etheraction
Etheraction is a multi-channel electroacoustic piece composed with synthesis sounds created with the Scanned Synthesis and the Filtering string. Two devices have been created to play the piece in real time. These devices are based on the use of graphical interfaces and enable to control both synthesis and sound spatialisation.
Graphical interfaces have been created with Jitter. The synthesis algorithms and the mapping have been implemented in Max/MSP.
Objectives
- Design a real-time device to play every elements of an electroacoustic piece : enabling the simultaneous control of numerous sound processes and their spatialisation.
- Design devices that fulfill with live performance situations.
- Use graphical interaction to enhance usability.
First device
The first device is dedicated to the control of a "sound creature" moving into the auditory space materialized by the multi-channel system of speakers. It enables to control the moves of the creature within space (sound spatialisation) as well as the pitch evolutions of the sound creature. This device is multitouch : several pointers can be handled at the same time on a same screen.
technical caracteristics of the first device
- Gesture controllers : pen-tablet with pen and mouse, 2D pedal for spatialisation.
- Sound processes : scanned synthesis.
Second device
Second device is dedicated to handle several sound processes that evolve all along the piece ; it makes use of physical models of strings to control a sound synthesis algorithm similar to the filtering string model.
Three windows are used and correspond to the three parts of the piece. In every parts, strings are moved by forces directly controlled with the multitouch surface.
Technical caracteristics of second device
- Gesture controllers: graphic tablet, multitouch surface, pedal.
- Sound processes : soustractive synthesis controlled by physical models of strings; used in the filtering string
Concert application
