Serenade: A Singing Style Conversion Framework Based On Audio Infilling

Fuente: arXiv
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Main Authors: Violeta, Lester Phillip, Huang, Wen-Chin, Toda, Tomoki
Format: Preprint
Published: 2025
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author Violeta, Lester Phillip
Huang, Wen-Chin
Toda, Tomoki
author_facet Violeta, Lester Phillip
Huang, Wen-Chin
Toda, Tomoki
contents We propose Serenade, a novel framework for the singing style conversion (SSC) task. Although singer identity conversion has made great strides in the previous years, converting the singing style of a singer has been an unexplored research area. We find three main challenges in SSC: modeling the target style, disentangling source style, and retaining the source melody. To model the target singing style, we use an audio infilling task by predicting a masked segment of the target mel-spectrogram with a flow-matching model using the complement of the masked target mel-spectrogram along with disentangled acoustic features. On the other hand, to disentangle the source singing style, we use a cyclic training approach, where we use synthetic converted samples as source inputs and reconstruct the original source mel-spectrogram as a target. Finally, to retain the source melody better, we investigate a post-processing module using a source-filter-based vocoder and resynthesize the converted waveforms using the original F0 patterns. Our results showed that the Serenade framework can handle generalized SSC tasks with the best overall similarity score, especially in modeling breathy and mixed singing styles. We also found that resynthesizing with the original F0 patterns alleviated out-of-tune singing and improved naturalness, but found a slight tradeoff in similarity due to not changing the F0 patterns into the target style.
format Preprint
id arxiv_https___arxiv_org_abs_2503_12388
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Serenade: A Singing Style Conversion Framework Based On Audio Infilling
Violeta, Lester Phillip
Huang, Wen-Chin
Toda, Tomoki
Sound
Audio and Speech Processing
We propose Serenade, a novel framework for the singing style conversion (SSC) task. Although singer identity conversion has made great strides in the previous years, converting the singing style of a singer has been an unexplored research area. We find three main challenges in SSC: modeling the target style, disentangling source style, and retaining the source melody. To model the target singing style, we use an audio infilling task by predicting a masked segment of the target mel-spectrogram with a flow-matching model using the complement of the masked target mel-spectrogram along with disentangled acoustic features. On the other hand, to disentangle the source singing style, we use a cyclic training approach, where we use synthetic converted samples as source inputs and reconstruct the original source mel-spectrogram as a target. Finally, to retain the source melody better, we investigate a post-processing module using a source-filter-based vocoder and resynthesize the converted waveforms using the original F0 patterns. Our results showed that the Serenade framework can handle generalized SSC tasks with the best overall similarity score, especially in modeling breathy and mixed singing styles. We also found that resynthesizing with the original F0 patterns alleviated out-of-tune singing and improved naturalness, but found a slight tradeoff in similarity due to not changing the F0 patterns into the target style.
title Serenade: A Singing Style Conversion Framework Based On Audio Infilling
topic Sound
Audio and Speech Processing
url https://arxiv.org/abs/2503.12388