Investigation of realistic acoustic scene simulation for people with hearing impairment
Master Thesis of Stockmann, Anne
The simulation of room acoustic environments (Virtual Acoustic Environments, VAE) has potential for a variety of useful medical applications, such as the evaluation of new hearing aids and hearing aid algorithms. To further the use of VAE into the clinical population, this thesis first focuses on the room acoustic and psychoacoustic parameters in classrooms from in situ measurements, which provide input on the simulation of realistic acoustics in future studies for children. The room acoustics measurements took place in unoccupied classrooms at a school for children with educational needs in hearing and communications. Activities during lessons and lunch breaks were also recorded and analyzed. The second part of the present work evaluates a loudspeaker-based binaural playback system with research hearing aids through normal hearing adults’ performance of localization of virtual sound sources. The data is compared to the results of a previous localization study using virtual sound sources played via headphones and real sound sources.