Evaluation of spatial audio reproduction schemes for application in hearing aid research

摘要: Loudspeaker-based spatial audio reproduction schemes are increasingly used for evaluating hearing aids in complex acoustic conditions. To further establish the feasibility of this approach, study investigated interaction between resolution different methods and technical perceptual aid performance measures using computer simulations. Three -- discrete speakers, vector base amplitude panning higher order ambisonics were compared regular circular loudspeaker arrays with 4 to 72 channels. The influence method array size on representative multi-microphone algorithm classes spatially distributed microphones a single channel noise-reduction was analyzed. Algorithm differed their way analyzing exploiting properties sound field, requiring accuracy field reproduction. Performance included beam pattern analysis, signal-to-noise ratio localization prediction, quality modeling. results show differences effects class that may be guidance when selecting appropriate number speakers specific tasks research.