ABSTRACT
The Integrated Processing and Understanding of Signals (IPUS) architecture is designed for complex environments, which are characterized by variable signal to noise ratios, unpredictable source behaviors, and the simultaneous occurrence of objects whose signal signatures can distort each other. Because auditory scene analysis is replete with issues concerning the relationship between SPAappropriateness and multi-sound interactions in complex environments, much of our experimental work with IPUS has focused on applying the architecture to this problem. In this chapter we present our work-in-progress in scaling-up our IPUS sound understanding testbed to accommodate a library of 40 sounds covering a range of types (e.g., impulsive, harmonic, periodic, chirps) and to analyze scenarios with three or four sounds.
