TY - GEN
T1 - Real-time Implementation of the Spectral Division Method for Binaural Personal Audio Delivery with Head Tracking
AU - Qiao, Yue
AU - Choueiri, Edgar
N1 - Publisher Copyright:
© 151st Audio Engineering Society Convention 2021.
PY - 2021
Y1 - 2021
N2 - A scheme for implementing the Spectral Division Method (SDM) in real time for delivering binaural personal audio to multiple listeners with head tracking is presented. The SDM, as an analytical approach for sound field reproduction, has been applied to generating personal audio filters that create acoustically bright and dark zones. However, only the case of static listening positions has been investigated. In realistic situations, the performance of such personal audio delivery systems will degrade significantly when the listeners move out of the "sweet spots". In order to achieve dynamic personal audio delivery that compensates for listeners’ head movements, the SDM-based filters are updated in real time through simple multiplications in the wavenumber domain, by utilizing the shifting theorem of the spatial Fourier transform along the x-axis. Furthermore, by selecting two spatial window functions targeted at two ears, the generated filters are able to deliver separate binaural personal audio to multiple listeners. The proposed scheme offers an intuitive and efficient solution for binaural personal audio delivery with head tracking, without the need of regenerating multiple filters as required by traditional methods.
AB - A scheme for implementing the Spectral Division Method (SDM) in real time for delivering binaural personal audio to multiple listeners with head tracking is presented. The SDM, as an analytical approach for sound field reproduction, has been applied to generating personal audio filters that create acoustically bright and dark zones. However, only the case of static listening positions has been investigated. In realistic situations, the performance of such personal audio delivery systems will degrade significantly when the listeners move out of the "sweet spots". In order to achieve dynamic personal audio delivery that compensates for listeners’ head movements, the SDM-based filters are updated in real time through simple multiplications in the wavenumber domain, by utilizing the shifting theorem of the spatial Fourier transform along the x-axis. Furthermore, by selecting two spatial window functions targeted at two ears, the generated filters are able to deliver separate binaural personal audio to multiple listeners. The proposed scheme offers an intuitive and efficient solution for binaural personal audio delivery with head tracking, without the need of regenerating multiple filters as required by traditional methods.
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M3 - Conference contribution
AN - SCOPUS:85123184762
T3 - 151st Audio Engineering Society Convention 2021
SP - 375
EP - 379
BT - 151st Audio Engineering Society Convention 2021
PB - Audio Engineering Society
T2 - 151st Audio Engineering Society Convention 2021
Y2 - 11 October 2021 through 13 October 2021
ER -