Evaluation of a Loudspeaker-Based Virtual Acoustic Environment for Investigating sound-field auditory steady-state responses

Valentina Zapata-Rodriguez, Gerd Høy Marbjerg, Jonas Brunskog, Cheol-Ho Jeong, Søren Laugesen, James M. Harte

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Measuring sound-field auditory steady-state responses (ASSR) is a promising new objective clinical procedure for hearing aid fitting validation, particularly for infants who cannot respond to behavioral tests. In practice, room acoustics of non-anechoic test rooms can heavily influence the auditory stimulus used for eliciting the ASSR. To systematically investigate the effect of the room acoustics conditions on sound-field ASSR, a loudspeaker-based auralization system was implemented using a mixed order Ambisonics approach. The present study investigates the performance of the auralization system in terms of objective room acoustic measurements and sound-field ASSR measurements, both in the actual room and in the simulated and auralized room. The evaluation is conducted for a small room with well-defined acoustic properties. The room is carefully modeled using the novel room acoustic simulation tool PARISM (Phased Acoustical Radiosity and Image Source Method) and validated through measurements. This study discusses the limitations of the system and the potential improvements needed for a more realistic sound-field ASSR simulation.
Original languageEnglish
Article number3997
JournalJournal of the Acoustical Society of America
Volume141
Issue number5
ISSN0001-4966
DOIs
Publication statusPublished - 2017

Bibliographical note

http://asa.scitation.org/doi/abs/10.1121/1.4989159

Keywords

  • Acoustical measurements
  • Room acoustics
  • Acoustical effects
  • Medical imaging
  • Acoustic imaging

Fingerprint Dive into the research topics of 'Evaluation of a Loudspeaker-Based Virtual Acoustic Environment for Investigating sound-field auditory steady-state responses'. Together they form a unique fingerprint.

Cite this