The CIPIC Interface Laboratory Home Page

The CIPIC Interface Laboratory* is a multi-disciplinary research laboratory that brings together experts from different areas of engineering, signal processing and psychophysics. The research activities at the laboratory are concerned with human perception and its role in the interface between humans and machines. Our work focuses on spatial hearing and three-dimensional sound synthesis, with related activities in image perception, and in speech, audio, and image signal processing.

In technical terms, our ultimate goal is to investigate and exploit the complex cues that contribute to the human experience of immersion in spatial sound. To this end, we use physically-based structural models and motion-sensitive methods for sound capture to produce high-performance and effective spatial auditory interfaces. This can be further elaborated in terms of specific scientific and engineering goals:

Scientific Goals

Contribute to fundamental knowledge concerning spatial sound perception:

1. HRTF synthesis and customization (Base HRTF models on underlying physics; identify the perceptually important properties; base HRTF customization on objective procedures)
2. HRTF models and model composition (Exploit model composition to structure research, identify critical parameters, and make numerical methods feasible; understand pinna/head/torso/room interactions)
3. Spatial sound capture (Capture sounds as perceived by humans; account for critical dynamic effects of motion: head rotation, body translation)
4. Understand relative importance of cues (ITD, ILD, pinna effects, torso effects, motion, room acoustics)

Engineering Goals

Contribute to the useful applications of spatial sound:

1. Develop cost-effective HRTF customization procedures (Parameters extracted from anthropometry; parameters extracted from imagery)
2. Increase auditory realism/discrimination (Live spatial sound capture and reproduction; virtual auditory space; augmented reality)
3. Expand the spatial/temporal resolution for spatial sound output (Exploit continuous models, ability to control azimuth, elevation and range)
4. Demonstrate value of spatial sound for auditory interfaces (Increase effectiveness of mobile systems, training systems, teleconferencing, monitoring and site security; more expressive musical technology)

*The CIPIC Interface Laboratory was originally formed in the Center for Image Processing and Integrated Computing. It now reports administratively to IDAV -- the Institute for Data Analysis and Visualization -- but retains its original name.