Interactive real-time implementations of Higher Order Ambisonics to binaural rendering using VISR

摘要

This work presents the implementation and experimental validation of an interactive binaural rcndcrcr that uses spherical microphone array recordings. The plane wave density function is used to represent the sound field. One implementation using a complete head-related transfer function dataset and one using a spatially re-sampled set are considered. System's performance is measured based on interaural time and level differences. Static performance validation is given by comparison to an established database. For the dynamic case, a real-time implementation using a head tracker is done. Good agreement is seen for interaural time differences. Significant errors for interaural level differences arc found above the spatial aliasing frequency. The spatially re-sampled set implementation improves high-frequency content without affecting interaural time and level differences.