mlsanityData to 7 Oct 2026

A2SB: Audio-to-Audio Schrodinger Bridges

arXiv 2501.11311 ↗First posted 20 Jan 2025cs.SD cs.LG eess.AScited by 11

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Abstract (arXiv)

Real-world audio is often degraded by numerous factors. This work presents an audio restoration model tailored for high-res music at 44.1kHz. Our model, Audio-to-Audio Schr"odinger Bridges (A2SB), is capable of both bandwidth extension (predicting high-frequency components) and inpainting (re-generating missing segments). Critically, A2SB is end-to-end requiring no vocoder to predict waveform outputs, able to restore hour-long audio inputs, and trained on permissively licensed music data. A2SB is capable of achieving state-of-the-art band-width extension and inpainting quality on several out-of-distribution music test sets.

Key facts. Cited by 11 papers in the map (data through 7 Oct 2026). Builds on 59 of its 75 references that are in the map. First posted on arXiv 20 Jan 2025.

Builds on

59 of 75 references.

References · 59

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38 more
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  15. 2017Neural Audio Synthesis of Musical Notes with WaveNet Autoencoderscited by 222
  16. 2021Likelihood Training of Schr"odinger Bridge using Forward-Backward SDEs Theorycited by 216
  17. 2018Enabling Factorized Piano Music Modeling and Generation with the MAESTRO Datasetcited by 215
  18. 2023I2SB: Image-to-Image Schr"odinger Bridgecited by 214
  19. 2016FMA: A Dataset For Music Analysiscited by 205
  20. 2022Speech Enhancement and Dereverberation with Diffusion-based Generative Modelscited by 195
  21. 2019Cutting Music Source Separation Some Slakh: A Dataset to Study the Impact of Training Data Quality and Quantitycited by 86
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  29. 2021VoiceFixer: Toward General Speech Restoration with Neural Vocodercited by 50
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50 most cited of 59 All 59 (JSON)

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Cited by year (2026 to 7 Oct)

Citing papers per year: 2025: 5; 2026: 6.

11 papers.

  1. 2025Inverse Bridge Matching Distillationcited by 13
  2. 2025Audio Super-Resolution with Latent Bridge Modelscited by 13
  3. 2025VoiceBridge: General Speech Restoration with One-step Latent Bridge Modelscited by 4
  4. 2025UniverSR: Unified and Versatile Audio Super-Resolution via Vocoder-Free Flow Matchingcited by 3
  5. 2025Schr"odinger Bridge Mamba for One-Step Speech Enhancementcited by 2
  6. 2026A Production-Oriented Framework for Evaluation of SFX Generationcited by 0
  7. 2026On the Geometry of Music Bandwidth Extension in Latent Spaces of Audio Codecscited by 0
  8. 2026Geometric Iterative Retrieval for Neural Audio Codec Resynthesiscited by 0
  9. 2026P2Flow: Phoneme-aware Progressive Flow Matching for Extreme Speech Super-Resolutioncited by 0
  10. 2026SE-MSB: End-to-End Unpaired Speech Enhancement using Mamba Schr"odinger Bridgescited by 0
  11. 2026End-to-End Historical Music Restoration in Latent Spacecited by 0