Ananya Misra will present her preFPO on Tuesday May 6 at 1PM in Room 302 (note room). The members of her committee are: Perry Cook, advisor; Georg Essl and Dan Trueman, readers; Ken Steiglitz and Szymon Rusinkiewicz, nonreaders. Everyone is invited to attend her talk. Her abstract follows below. Abstract: TAPESTREA is a sound design and composition framework that facilitates the creation of new sound from existing digital audio recordings, through interactive analysis, transformation and re-synthesis. During analysis, sinusoidal modeling and transient detection techniques are used to parametrically extract desired sound templates of different types: sinusoidal events, transient events, and stochastic background. Each extracted template is transformed and synthesized independently using an appropriate technique, such as sinusoidal re-synthesis or wavelet tree learning. This allows specialized transformations on each template based on its type; sinusoidal templates undergo real-time, large-scale time and frequency transformations, while background is generated parametrically from extracted samples. The user interacts with TAPESTREA via a set of graphical interfaces. Synthesis is further controlled through ChucK scripts, which allow simultaneous, precise manipulation of many parameters. They also allow control via external input devices and user-defined GUI elements. These combined techniques form a workbench for completely transforming a sound scene, dynamically generating soundscapes, or creating musical tapestries by weaving together transformed elements from different recordings. Thus, TAPESTREA introduces a new paradigm for composition, sound design, and other sonic sculpting tasks. Work on further improving the system includes user studies to compare alternative algorithms for generating stochastic background noise.
participants (1)
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Melissa M Lawson