StableVC: Style Controllable Zero-Shot Voice Conversion with Conditional Flow Matching

Fuente: arXiv
Saved in:
Bibliographic Details
Main Authors: Yao, Jixun, Yang, Yuguang, Pan, Yu, Ning, Ziqian, Ye, Jiaohao, Zhou, Hongbin, Xie, Lei
Format: Preprint
Published: 2024
Subjects:
Online Access:
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1866913603841425408
author Yao, Jixun
Yang, Yuguang
Pan, Yu
Ning, Ziqian
Ye, Jiaohao
Zhou, Hongbin
Xie, Lei
author_facet Yao, Jixun
Yang, Yuguang
Pan, Yu
Ning, Ziqian
Ye, Jiaohao
Zhou, Hongbin
Xie, Lei
contents Zero-shot voice conversion (VC) aims to transfer the timbre from the source speaker to an arbitrary unseen speaker while preserving the original linguistic content. Despite recent advancements in zero-shot VC using language model-based or diffusion-based approaches, several challenges remain: 1) current approaches primarily focus on adapting timbre from unseen speakers and are unable to transfer style and timbre to different unseen speakers independently; 2) these approaches often suffer from slower inference speeds due to the autoregressive modeling methods or the need for numerous sampling steps; 3) the quality and similarity of the converted samples are still not fully satisfactory. To address these challenges, we propose a style controllable zero-shot VC approach named StableVC, which aims to transfer timbre and style from source speech to different unseen target speakers. Specifically, we decompose speech into linguistic content, timbre, and style, and then employ a conditional flow matching module to reconstruct the high-quality mel-spectrogram based on these decomposed features. To effectively capture timbre and style in a zero-shot manner, we introduce a novel dual attention mechanism with an adaptive gate, rather than using conventional feature concatenation. With this non-autoregressive design, StableVC can efficiently capture the intricate timbre and style from different unseen speakers and generate high-quality speech significantly faster than real-time. Experiments demonstrate that our proposed StableVC outperforms state-of-the-art baseline systems in zero-shot VC and achieves flexible control over timbre and style from different unseen speakers. Moreover, StableVC offers approximately 25x and 1.65x faster sampling compared to autoregressive and diffusion-based baselines.
format Preprint
id arxiv_https___arxiv_org_abs_2412_04724
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle StableVC: Style Controllable Zero-Shot Voice Conversion with Conditional Flow Matching
Yao, Jixun
Yang, Yuguang
Pan, Yu
Ning, Ziqian
Ye, Jiaohao
Zhou, Hongbin
Xie, Lei
Audio and Speech Processing
Sound
Zero-shot voice conversion (VC) aims to transfer the timbre from the source speaker to an arbitrary unseen speaker while preserving the original linguistic content. Despite recent advancements in zero-shot VC using language model-based or diffusion-based approaches, several challenges remain: 1) current approaches primarily focus on adapting timbre from unseen speakers and are unable to transfer style and timbre to different unseen speakers independently; 2) these approaches often suffer from slower inference speeds due to the autoregressive modeling methods or the need for numerous sampling steps; 3) the quality and similarity of the converted samples are still not fully satisfactory. To address these challenges, we propose a style controllable zero-shot VC approach named StableVC, which aims to transfer timbre and style from source speech to different unseen target speakers. Specifically, we decompose speech into linguistic content, timbre, and style, and then employ a conditional flow matching module to reconstruct the high-quality mel-spectrogram based on these decomposed features. To effectively capture timbre and style in a zero-shot manner, we introduce a novel dual attention mechanism with an adaptive gate, rather than using conventional feature concatenation. With this non-autoregressive design, StableVC can efficiently capture the intricate timbre and style from different unseen speakers and generate high-quality speech significantly faster than real-time. Experiments demonstrate that our proposed StableVC outperforms state-of-the-art baseline systems in zero-shot VC and achieves flexible control over timbre and style from different unseen speakers. Moreover, StableVC offers approximately 25x and 1.65x faster sampling compared to autoregressive and diffusion-based baselines.
title StableVC: Style Controllable Zero-Shot Voice Conversion with Conditional Flow Matching
topic Audio and Speech Processing
Sound
url https://arxiv.org/abs/2412.04724