Jean-Michaël Celerier

Live creation of an emergent audio-visual system with ossia score.

ossia (https://ossia.io) creates ossia score, a free and open-source sequencer for media art. We will do a live coding / patching / creation session to show how the software can be used and what kind of artworks can be done with it.

We propose a workshop on the usage of the various software of the ossia ecosystem (https://ossia.io), which are a set of tools to be used in a creative coding context, in order to create art, in particular shows, artistic installations, or museum exhibitions.

We will present the usage of two tools. First, the library libossia (https://github.com/OSSIA/libossia), which allows exposure and control of the parameters of a creative software over the network across many different languages and environments (C++, Java, C#, PureData, Python, SuperCollider, Qt/QML, Faust...). Then, we will show and teach the usage of the software ossia score (https://github.com/OSSIA/score), which allows to score the parameters of these creative applications in time, as well as include media, sound effects, hardware peripherals, robots, DMX lightning, etc. In particular, the interactive features, which allow for non-interactive timelines and scoring will be showcased and explained.

The OSCQuery protocol will be discussed (https://github.com/Vidvox/OSCQueryProposal). It has been conceived in collaboration with the authors of multiple industrial-grade media software companies such as VDMX, Vezér, Millumin and others. This protocol is implemented in libossia and allows extensive interoperability amongst this kind of software, in particular between websites and traditional desktop software thanks to the use of WebSockets.

i-score is an intermedia sequencer dedicated to interactive scenario authoring. Designed as a generic data sequencer, this open source software allows a remote dialog with various applications, such as Max, Pd, Live ... using show-control protocols like OSC to store and recall parameters value.

Founded by the National French Research Agency project OSSIA, the 1.0 version of i-score proposes a graphical formalism to set precise temporal and conditional relationships between events that can be interactively triggered. The edition and the execution of several independant time layers offer an unique way to manage parameters automations being attended by tools to interpolate states or to draw your own curved breakpoint function.

As the result of continuous discussions between scientists, ingeneers and users, the presentation will be articulated around well known issues identified during the development of setups for show-control or interactives setups used in museographic situations.

i-score is an intermedia sequencer dedicated to interactive scenario authoring. Designed as a generic data sequencer, this open source software allows a remote dialog with various applications, such as Max, Pd, Live ... using show-control protocols like OSC to store and recall parameters value.

Founded by the National French Research Agency project OSSIA, the 1.0 version of i-score proposes a graphical formalism to set precise temporal and conditional relationships between events that can be interactively triggered. The edition and the execution of several independant time layers offer an unique way to manage parameters automations being attended by tools to interpolate states or to draw your own curved breakpoint function.

As the result of continuous discussions between scientists, ingeneers and users, the presentation will be articulated around well known issues identified during the development of setups for show-control or interactives setups used in museographic situations.