A multichannel RVQGAN with a covariance loss compresses 16-channel third-order Ambisonics to 16 kbps and outperforms Opus at 160 kbps in a MUSHRA listening test on ambient scenes.
Further investigations of high- order ambisonics and wavefield synthesis for holophonic sound imaging,
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Compression of Higher Order Ambisonics with Multichannel RVQGAN
A multichannel RVQGAN with a covariance loss compresses 16-channel third-order Ambisonics to 16 kbps and outperforms Opus at 160 kbps in a MUSHRA listening test on ambient scenes.