Other research projects

 Formation of auditory glimpses based on local similarities
Sarinah Sutojo, PhD student at the University of Oldenburg

This project is concerned with the blind segregation of sound sources from an acoustic scene. A special focus lies on the source-independent segregation which is supposed to make little or no assumptions about the number and types of present sources. Our approach is to mainly rely on contrasts in the observed auditory features to form segments which are assumed to originate from the same source. Such segments are then further processed and joined depending on their feature similarities or feature progression. The goal of this approach is to achieve less source-dependence and thus more robustness to unknown acoustic scenes as compared to class-based systems.

New clinical profiling and hearing-aid fitting
Silje Grini Nielsen, Research Assistant in the BEAR project (Better Hearing Rehabilitation Project)

Work package 3 (WP3) is focusing on new clinical profiling and hearing-aid fitting. The last few months these new strategies have been tested at Bispebjerg Hospital (BBH), Technical University of Denmark (DTU), and Odense University Hospital (OUH). The experiments are divided into two sections: the clinical profiling and hearing-aid evaluation. In the second part of the experiment, different combinations of hearing-aid setting have been tested on speech intelligibility, noise annoyance, and overall quality. It is now being investigated which test is the most suitable dividing people into four different profiles, and wheather there is a correlation between the profiles and the hearing-aid settings.

Integrating the visual in AVIL
Kasper Duemose Lund, Research Assistant

Kasper is working on the integration of virtual reality in the Audio Visual Immersion Lab (AVIL). As of now, the AVIL does not have any permanent setup for providing visual stimulation to subjects participating in perceptual experiments. With this HTC Vive based virtual reality implementation, researchers have the framework for exposing subjects to 3D visual environments corresponding to the played back audio environments of the AVIL. A full synchronization of the existing audio engine and the new visual integration will be included. Audio-visual scenarios can therefore be presented in a highly controlled way. Conclusively, a protocol for constructing audio-visual perception experiments using this system will be developed.

Innovative Hearing Aid Research – Ecological Conditions and Outcome Measures
Sergio Luiz Aguirre, Early Stage Researcher in the HEAR-ECO project

This PhD project at Eriksholm Research Centre focuses on the reproduction of realistic sounds scenarios and how to apply them for the measurement of listening effort. The long-term goal is to create new tests for examining the benefit of hearing-aid technology on listening effort in an ecologically valid environment. This project is jointly overseen by the Hearing Sciences – Scottish Section research group of the University in Nottingham (William Whitmer and Graham Naylor) and the Eriksholm Research Centre (Thomas Lunner). Additional collaboration with Hearing Systems, DTU, that will explore new ways to create the adequate sound field will be performed in the Audio Visual Immersion Lab (AVIL).
HEAR-ECO is a project which aims to develop and combine new tools and outcome measures for realistic communication, and translating these tools into innovative developments and evaluations of new technology for those with hearing loss. At its core, HEAR-ECO is training a new team of researchers working at the nexus of technology, psychology, physiology and audiology. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie-Sklodowska-Curie grant agreement No 765329