Author

Amy Bastine

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Preprint Sep 2026

An Efficient Parametric Codec for Low-Bitrate First-Order Ambisonics

Driven by the rapid growth of immersive teleconferencing and generative spatial audio, efficient low-bitrate coding of first-order Ambisonics (FOA) has become increasingly important. In this work, we develop a lightweight parametric FOA codec that retains the standard Directional Audio Coding analysis and synthesis whi...

Wei-Ting Lai, Amy Bastine, Lachlan I. Birnie et al. · 0 citations

#machine learning Preprint Mar 2026

HRIR-Former: Grid-Free Time-Domain Reconstruction of Head-Related Impulse Responses with a Spatially Encoded Transformer

HRIR-Former is proposed, a time-domain, grid-free binaural Transformer for reconstructing HRIRs at arbitrary directions from sparse inputs, which improves normalized mean squared error (NMSE), cosine distance, and ITD/ILD errors over prior methods.

Shaoheng Xu, Chunyi Sun, J. Zhang et al. · 0 citations