A spatial enhancement approach for binaural rendering of head-worn microphone arrays

Janani Fernandez*, Leo McCormack, Petteri Hyvärinen, Archontis Politis, Ville Pulkki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsProfessional


This paper builds upon a recently proposed spatial enhancement approach, which has demonstrated improvements in the perceived spatial accuracy of binaurally rendered signals using head-worn microphone arrays. The foundation of the approach is a parametric sound-field model, which assumes the existence of a single source and an isotropic diffuse component for each time-frequency index. The enhancement approach involves the post-processing of an initial estimate of the binaural signals, in order to obtain a refined estimate of binaural signals which more closely represent the inter-aural cues corresponding to the sound-field model. In this contribution, the enhancement approach has been implemented as an open-source framework,
written in both the MATLAB and C programming languages, and as a real-time audio plug-in. The framework was also extended to offer direction-dependent gain control of sound sources relative to the listener, and a frequency-dependent control of the direct-to-diffuse balance, which are modifications that may find application within future augmented reality headsets and assistive hearing devices.
Original languageEnglish
Title of host publicationProceedings of the 24th International Congress on Acoustics
PublisherAcoustical Society of Korea (ASK)
Number of pages5
Publication statusPublished - 2022
MoE publication typeD3 Professional conference proceedings
EventInternational Congress on Acoustics - Hwabaek International Convention Center (HICO), Gyeongju, Korea, Republic of
Duration: 24 Oct 202228 Oct 2022
Conference number: 24


ConferenceInternational Congress on Acoustics
Abbreviated titleICA2022
Country/TerritoryKorea, Republic of
Internet address


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