Imperial College London

Impact of non-individualised head related transfer functions on speech-in-noise performances within a synthesised virtual environment

Maria Cuevas-Rodriguez, Daniel Gonzalez-Toledo, Arcadio Reyes-Lecuona, Lorenzo Picinali
April 13, 2021
The Journal of the Acoustical Society of America
Acoustical Society of America

When performing binaural spatialisation, it is widely accepted that the choice of the head related transfer functions (HRTFs), and in particular the use of individually measured ones, can have an impact on localisation accuracy, externalization, and overall realism. Yet the impact of HRTF choices on speech-in-noise performances in cocktail party-like scenarios has not been investigated in depth. This paper introduces a study where 22 participants were presented with a frontal speech target and two lateral maskers, spatialised using a set of non-individual HRTFs. Speech reception threshold (SRT) was measured for each HRTF. Furthermore, using the SRT predicted by an existing speech perception model, the measured values were compensated in the attempt to remove overall HRTF-specific benefits. Results show significant overall differences among the SRTs measured using different HRTFs, consistently with the ...

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