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SpectroStream: A Versatile Neural Codec for General Audio

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arxiv 2508.05207 v1 pith:JAOKW7PI submitted 2025-08-07 cs.SD cs.AIeess.AS

SpectroStream: A Versatile Neural Codec for General Audio

Yunpeng Li , Kehang Han , Brian McWilliams , Zalan Borsos , Marco Tagliasacchi This is my paper
classification cs.SD cs.AIeess.AS
keywords audioneuralspectrostreamcodecmulti-channelqualityaccomplishedacoustic
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose SpectroStream, a full-band multi-channel neural audio codec. Successor to the well-established SoundStream, SpectroStream extends its capability beyond 24 kHz monophonic audio and enables high-quality reconstruction of 48 kHz stereo music at bit rates of 4--16 kbps. This is accomplished with a new neural architecture that leverages audio representation in the time-frequency domain, which leads to better audio quality especially at higher sample rate. The model also uses a delayed-fusion strategy to handle multi-channel audio, which is crucial in balancing per-channel acoustic quality and cross-channel phase consistency.

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Cited by 3 Pith papers

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