Benjamin Schroeder
Projects and Publications
Updated May 1, 2011
Selected projects "demo reel" (opens in new window)
1. Physically Based Sound Synthesis
2. Rule-Based Interactive Choreography
3. Procedural Animation
Computer languages for physically based sound
Benjamin Schroeder, Marc Ainger, Richard Parent
Physically based sound models have the potential to produce rich sound with intuitive controls. However, computer music languages have been designed with the needs of sound processing, rather than model manipulation, in mind and so are limited in their use for truly expressive control of physical models. In this ongoing research project, we are investigating new programming language paradigms, both symbolic and graphical, for use with physical models.
[article web page]
Schroeder, Benjamin.
An Interactive, Multi-Modal Workspace for Physically Based Sound.
SIGGRAPH Computer Graphics Quarterly, Volume 45, Number 1, February 2011.
[extended abstract pdf]
Schroeder, Benjamin, Parent, Richard, and Ainger, Marc.
A Spatial Workbench for Physically-Based Sound.
SIGGRAPH 2010 (Talks).
[paper pdf] [videos]
Schroeder, Benjamin, Ainger, Marc, and Parent, Richard.
An Audiovisual Workspace for Physical Models.
SMC 2010.
[extended abstract pdf]
Schroeder, Benjamin, Ainger, Marc, and Parent, Richard.
New Languages for Physical Modeling Synthesis.
ICMC 2010 ("Unconference" session).
[poster pdf]
Supplementary poster from annual departmental poster session
 
The Camouflage Project
Lesley Ferris, Mary Tarantino, et al.
The Camouflage Project is a collaboration between ACCAD and the OSU Department of Theatre. It includes a theatrical production and exhibition centered around the history of camouflage and espionage in World War II. Animated 3D projection mapping is used in the production to transform the set.
 
[project web page]
Synchronous Objects, reproduced
Norah Zuniga Shaw et al.
Synchronous Objects, reproduced reimagines the web-based Synchronous Objects project, creating a physical, spatial extension of that project's analysis and interpretation of William Forsythe's One Flat Thing, reproduced. The multipart installation includes projections, a physically realized interactive Counterpoint Tool, synchronized video and audio from several of the project's choreographic objects, and more.
[Counterpoint Tool video] [installation web page]
World premiere: ISEA 2010 RUHR, Essen, Germany
 
Drums Downtown VII: Animation for Signals Intelligence
Benjamin Schroeder for the OSU Percussion Ensemble
Music composed by Christopher Adler
A procedural animation created for a live performance of Christopher Adler's Signals Intelligence. The animation uses the score of the piece to create a shifting network of communicating beacons.
(video coming soon)
 
Finite difference based sound for rigid body animation
Benjamin Schroeder, Marc Ainger, Richard Parent
A technique for producing high-quality sound and secondary animation effects by coupling a standard rigid body simulation to a finite-difference sound synthesis model. The technique considers fine-grained contact at audio rates, which allows for the production of richer impact sounds and damping from contact as well as the feedback of forces to the rigid body simulation. Sound is produced at interactive rates, in part through the assistance of a CPU vector processing unit.
[extended abstract pdf] [Quicktime video] [poster pdf]
Schroeder, Benjamin, Ainger, Marc, and Parent, Richard.
Fast Direct Sound for Rigid Body Animation.
SCA 2009 (Posters and Demos).
 
Synchronous Objects for One Flat Thing, reproduced
William Forsythe, Maria Palazzi, Norah Zuniga Shaw, et al.
Synchronous Objects is a piece of interactive dance literature which describes, illuminates, and expands upon the piece One Flat Thing, reproduced by the choreographer William Forsythe. It is the product of a collaboration among people from many disciplines, including dance, design, computer science, architecture, and geography. The site uses animation to annotate and explain the choreographic systems at work within the dance; has interactive tools to teach and to enable visitors to create their own work; and includes reinterpretations of the dance's data through such diverse means as statistical analysis, a furniture system, and generative computer graphics.

One of my major contributions was to the design and implementation of the interactive Counterpoint Tool. This tool presents simple geometric performing creatures; the user may then give them broad choreographic direction using sliders and buttons, learning about the construction of contrapuntal choreography by working directly with it in a simplified system. Visitors can go further and make their own creative work through use of the choreographic rule system.
[web site]
The Synchronous Objects site, launched April 2009.
[web site]
The Synchronous Objects Counterpoint Tool.
[summary pdf]
Palazzi, Maria, Zuniga Shaw, Norah, and Forsythe, William, et al.
Synchronous Objects for One Flat Thing, reproduced.
SIGGRAPH 2009 (Information Aesthetics Showcase).
 
Drums Downtown VI:
Animation for New York Counterpoint
Benjamin Schroeder for the OSU Percussion Ensemble
Music composed by Steve Reich, arr. Joseph Krygier
A procedural animation created for a live performance of Steve Reich's New York Counterpoint, arranged for mallet percussion by Joseph Krygier. The animation is created by a choreographic system that maps the score to geometry, color, and light.
[Quicktime video]
(with music from OSU Percussion Ensemble)
 
Murmur
Norah Zuniga Shaw, Marc Ainger, Matthew Lewis, and Benjamin Schroeder
Murmur is an interactive dance and music system which explores the relation of space and sound. Performers are tracked by a computer vision system and control a shifting soundscape through changes in location and movement. Sounds and voices from throughout the world are mapped to different parts of the performance space.

Performances have included a collaboration with New Circus artists at ICMC 2007; a solo work by Norah Zuniga Shaw; and a piece by Ariadne Mikou.
[project web page]