Music Boomerang: Reusing Diffusion Models for Data Augmentation and Audio Manipulation

Fuente: arXiv
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Autores principales: Fichtinger, Alexander, Schlüter, Jan, Widmer, Gerhard
Formato: Preprint
Publicado: 2025
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author Fichtinger, Alexander
Schlüter, Jan
Widmer, Gerhard
author_facet Fichtinger, Alexander
Schlüter, Jan
Widmer, Gerhard
contents Generative models of music audio are typically used to generate output based solely on a text prompt or melody. Boomerang sampling, recently proposed for the image domain, allows generating output close to an existing example, using any pretrained diffusion model. In this work, we explore its application in the audio domain as a tool for data augmentation or content manipulation. Specifically, implementing Boomerang sampling for Stable Audio Open, we augment training data for a state-of-the-art beat tracker, and attempt to replace musical instruments in recordings. Our results show that the rhythmic structure of existing examples is mostly preserved, that it improves performance of the beat tracker, but only in scenarios of limited training data, and that it can accomplish text-based instrument replacement on monophonic inputs. We publish our implementation to invite experiments on data augmentation in other tasks and explore further applications.
format Preprint
id arxiv_https___arxiv_org_abs_2507_04864
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Music Boomerang: Reusing Diffusion Models for Data Augmentation and Audio Manipulation
Fichtinger, Alexander
Schlüter, Jan
Widmer, Gerhard
Sound
Machine Learning
Audio and Speech Processing
Generative models of music audio are typically used to generate output based solely on a text prompt or melody. Boomerang sampling, recently proposed for the image domain, allows generating output close to an existing example, using any pretrained diffusion model. In this work, we explore its application in the audio domain as a tool for data augmentation or content manipulation. Specifically, implementing Boomerang sampling for Stable Audio Open, we augment training data for a state-of-the-art beat tracker, and attempt to replace musical instruments in recordings. Our results show that the rhythmic structure of existing examples is mostly preserved, that it improves performance of the beat tracker, but only in scenarios of limited training data, and that it can accomplish text-based instrument replacement on monophonic inputs. We publish our implementation to invite experiments on data augmentation in other tasks and explore further applications.
title Music Boomerang: Reusing Diffusion Models for Data Augmentation and Audio Manipulation
topic Sound
Machine Learning
Audio and Speech Processing
url https://arxiv.org/abs/2507.04864