A2SB: Audio-to-Audio Schrodinger Bridges

Fuente: arXiv
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Bibliographic Details
Main Authors: Kong, Zhifeng, Shih, Kevin J, Nie, Weili, Vahdat, Arash, Lee, Sang-gil, Santos, Joao Felipe, Jukic, Ante, Valle, Rafael, Catanzaro, Bryan
Format: Preprint
Published: 2025
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author Kong, Zhifeng
Shih, Kevin J
Nie, Weili
Vahdat, Arash
Lee, Sang-gil
Santos, Joao Felipe
Jukic, Ante
Valle, Rafael
Catanzaro, Bryan
author_facet Kong, Zhifeng
Shih, Kevin J
Nie, Weili
Vahdat, Arash
Lee, Sang-gil
Santos, Joao Felipe
Jukic, Ante
Valle, Rafael
Catanzaro, Bryan
contents 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 Schrödinger 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.
format Preprint
id arxiv_https___arxiv_org_abs_2501_11311
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A2SB: Audio-to-Audio Schrodinger Bridges
Kong, Zhifeng
Shih, Kevin J
Nie, Weili
Vahdat, Arash
Lee, Sang-gil
Santos, Joao Felipe
Jukic, Ante
Valle, Rafael
Catanzaro, Bryan
Sound
Machine Learning
Audio and Speech Processing
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 Schrödinger 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.
title A2SB: Audio-to-Audio Schrodinger Bridges
topic Sound
Machine Learning
Audio and Speech Processing
url https://arxiv.org/abs/2501.11311