Curtis Roads

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This article provides an overview of dictionary-based methods (DBMs), and reviews recent work in the application of such methods to working with audio and music signals. As Fourier analysis is to additive synthesis, DBMs can be seen as the analytical counterpart to a generalized granular synthesis, where a sound is built by combining heterogeneous atoms(More)
As a combination of time and frequency modeling,sparse atomic representation provides a means for effective and interesting time-frequency modifications of signals. A drawback is the intensive computation required to find the representation. New tools however greatly speed the process and facilitate experimentation with real signals. We have experimented(More)
Sound particles or microsounds last only a few milliseconds, near the threshold of auditory perception. We can easily analyze the physical properties of sound particles either individually or in masses. However, correlating these properties with human perception remains complicated. One cannot speak of a single time frame, or a "time constant" for the(More)