Text-Driven Voice Conversion via Latent State-Space Modeling

Fuente: arXiv
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Main Authors: Li, Wen, Martinez, Sofia, Shah, Priyanka
Format: Preprint
Published: 2025
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author Li, Wen
Martinez, Sofia
Shah, Priyanka
author_facet Li, Wen
Martinez, Sofia
Shah, Priyanka
contents Text-driven voice conversion allows customization of speaker characteristics and prosodic elements using textual descriptions. However, most existing methods rely heavily on direct text-to-speech training, limiting their flexibility in controlling nuanced style elements or timbral features. In this paper, we propose a novel \textbf{Latent State-Space} approach for text-driven voice conversion (\textbf{LSS-VC}). Our method treats each utterance as an evolving dynamical system in a continuous latent space. Drawing inspiration from mamba, which introduced a state-space model for efficient text-driven \emph{image} style transfer, we adapt a loosely related methodology for \emph{voice} style transformation. Specifically, we learn a voice latent manifold where style and content can be manipulated independently by textual style prompts. We propose an adaptive cross-modal fusion mechanism to inject style information into the voice latent representation, enabling interpretable and fine-grained control over speaker identity, speaking rate, and emphasis. Extensive experiments show that our approach significantly outperforms recent baselines in both subjective and objective quality metrics, while offering smoother transitions between styles, reduced artifacts, and more precise text-based style control.
format Preprint
id arxiv_https___arxiv_org_abs_2503_20999
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Text-Driven Voice Conversion via Latent State-Space Modeling
Li, Wen
Martinez, Sofia
Shah, Priyanka
Sound
Graphics
Audio and Speech Processing
Text-driven voice conversion allows customization of speaker characteristics and prosodic elements using textual descriptions. However, most existing methods rely heavily on direct text-to-speech training, limiting their flexibility in controlling nuanced style elements or timbral features. In this paper, we propose a novel \textbf{Latent State-Space} approach for text-driven voice conversion (\textbf{LSS-VC}). Our method treats each utterance as an evolving dynamical system in a continuous latent space. Drawing inspiration from mamba, which introduced a state-space model for efficient text-driven \emph{image} style transfer, we adapt a loosely related methodology for \emph{voice} style transformation. Specifically, we learn a voice latent manifold where style and content can be manipulated independently by textual style prompts. We propose an adaptive cross-modal fusion mechanism to inject style information into the voice latent representation, enabling interpretable and fine-grained control over speaker identity, speaking rate, and emphasis. Extensive experiments show that our approach significantly outperforms recent baselines in both subjective and objective quality metrics, while offering smoother transitions between styles, reduced artifacts, and more precise text-based style control.
title Text-Driven Voice Conversion via Latent State-Space Modeling
topic Sound
Graphics
Audio and Speech Processing
url https://arxiv.org/abs/2503.20999