Digital signal processing (DSP) and its applications in acoustics, speech processing, communications, and analytical chemistry. Voice transmission over IP (VoIP) and ATM networks.
Current research projects deal with audio quality improvement in telephony, audio teleconferencing, network echo cancellers, acoustic echo and noise cancellation, adaptive filter structures, beamforming using microphone arrays, and narcotics detection using ion mobility spectrometry.
Other interests include mobile communications, digital systems design, DSP hardware, multiprocessor architectures for DSP, and computer architecture.