JIm Pitton         Principal Engineer         EIS Department         Applied Physics Laboratory         University of Washington	This research, under funding from DARPA's ASE program, is focused on speaker authentication and related activities, noise suppression, and low-rate coding. Speaker authentication and related activities involves a comparison of acoustic and non-acoustic measurements, glottal waveform modeling using joint frequency, improved speaker authentication, and combined speaker authentication and speech coding. Noise suppression tasks include compensation for sensor artifacts, HMM tracking of speech and noise states, Weiner filtering, noise robust vocal tract models, and error concealment for unvoiced speech. Low-rate coding involves coding the glottal waveform, compression based on group testing, and multi-frame interpolation of LPC (Linear Predictive Coding) models.