Institute of Communication Acoustics (RUB-IKA),
Ruhr-University Bochum, DE
Experience and competence
The Ruhr-Universität Bochum (RUB) takes part in this proposal through
its "Institute of Communication Acoustics" (IKA) headed by Prof. Dr.-Ing.
Dr. techn. h. c. Jens Blauert and Prof. Dr.-Ing. Herbert Hudde. The Institute
was established in 1974 as part of the Faculty of Electrical Engineering.
Its personnel comprises about 20 academic researchers (electrical engineers,
acousticians, psycho-acousticians, linguists, and computer scientists),
eight technical and office employees plus 20 students who are in the process
of specialising in various fields of acoustics. Activities in binaural
technology started in 1975 with extensive research work into the field
of spatial hearing and its application in information technology and architectural
acoustics. The institute has, e.g., developed computer models of the human
binaural-hearing system with great application potential in speech technology
and electroacoustics. Since about 1985, binaural-room simulation as a major
pre-requisite of auditory Virtual Reality, has become an explicit goal
of the research and development in the institute. Since then, further fields
of research like Auditory System Quality have been established as separate
subgroups. RUB has participated in several EC projects: SCATIS (Spatially-Coordinated
Audio/Tactile Interactive Scenario, ESPRIT #6358), MORIS (Motor Rider Simulator,
ESPRIT #20521), AUDIS (multipurpose AUditory DISplay for 3-D hearing applications,
ESPRIT #22352), VREPAR (Virtual Reality Environments for Psycho-neuro-physiological
Research, Health Care #1053), VETIR (Virtual Environment Technologies in
Rehabilitation, TIDE #1216), MIAMI (Multimodal Integration for Advanced
Multimedia Interfaces, ESPRIT #8579), CROSSES (Crowd Simulation System
for Emergency Situations, IST-1999-10510) and FIVE (Framework for Immersive
Virtual Environments, ESPRIT Working Group #9122) and SPHEAR (SPeech, HEAring
Role in the project
Bochum brings the research fields of binaural hearing, precedence effect
[Djelani and Blauert 00] and speech technology assessment (Möller
00) to the SPHEAR consortium. The `virtual auditory environment' technique
is important for a number of studies and is outlined in 3.1 and [Blauert
et al. 00, Djelani et al. 00]. For auditory scene analysis, binaural processing
adds the space dimension to a time-frequency representation. This makes
it possible to discriminate between the desired sound source in one direction
and interfering noises in other directions.
Bochum has already established a close collaboration with Patras during
SPHEAR, which will be continued in Task 2.1 and Task 2.3. Furthermore Bochum
will collaborate with Keele in Task 1.4 and with IDIAP in Task 5.3.
Principal research personnel, expertise and involvement
Jens Blauert, Dr.-Ing. Dr. techn. h.c., Professor, chair of electrical
engineering and acoustics, expertise in Auditory virtual environment &
telepresence, binaural technology, models of binaural hearing, architectural
acoustics, noise & product-sound engineering, speech technology (synthesis,
enhancement, recognition & assessment). Involvement 4 man-months.
Jonas Braasch, Dipl.-Phys., project group manager of the 'Auditory signal
processing and binaural technology' group, expertise in binaural hearing,
models of binaural hearing and musical acoustics.
Sebastian Möller, Dr.-Ing., project group manager of the "Speech Communication
Technology" group, expertise in speech signal processing, speech technology
and communication quality aspects.
Blauert, J., Lehnert, H., Sahrhage, J., Strauss, H. (2000). An Interactive
Virtual-Environment Generator for Psychoacousic Research, I: Architecture
and Implementation, ACUSTICA/acta acustica, Vol. 86, 94-106.
Buchholz, J., M., Mourjopoulos, J., Blauert, J. (2001). Room Masking: Understanding
and Modelling the Masking of Room Reflections, presented on the 110th Audio
Engineering Convention, Amsterdam, Netherlands.