LAFMA: A Latent Flow Matching Model for Text-to-Audio Generation

Fuente: arXiv
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Main Authors: Guan, Wenhao, Wang, Kaidi, Zhou, Wangjin, Wang, Yang, Deng, Feng, Wang, Hui, Li, Lin, Hong, Qingyang, Qin, Yong
Format: Preprint
Published: 2024
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_version_ 1866916283712274432
author Guan, Wenhao
Wang, Kaidi
Zhou, Wangjin
Wang, Yang
Deng, Feng
Wang, Hui
Li, Lin
Hong, Qingyang
Qin, Yong
author_facet Guan, Wenhao
Wang, Kaidi
Zhou, Wangjin
Wang, Yang
Deng, Feng
Wang, Hui
Li, Lin
Hong, Qingyang
Qin, Yong
contents Recently, the application of diffusion models has facilitated the significant development of speech and audio generation. Nevertheless, the quality of samples generated by diffusion models still needs improvement. And the effectiveness of the method is accompanied by the extensive number of sampling steps, leading to an extended synthesis time necessary for generating high-quality audio. Previous Text-to-Audio (TTA) methods mostly used diffusion models in the latent space for audio generation. In this paper, we explore the integration of the Flow Matching (FM) model into the audio latent space for audio generation. The FM is an alternative simulation-free method that trains continuous normalization flows (CNF) based on regressing vector fields. We demonstrate that our model significantly enhances the quality of generated audio samples, achieving better performance than prior models. Moreover, it reduces the number of inference steps to ten steps almost without sacrificing performance.
format Preprint
id arxiv_https___arxiv_org_abs_2406_08203
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle LAFMA: A Latent Flow Matching Model for Text-to-Audio Generation
Guan, Wenhao
Wang, Kaidi
Zhou, Wangjin
Wang, Yang
Deng, Feng
Wang, Hui
Li, Lin
Hong, Qingyang
Qin, Yong
Audio and Speech Processing
Sound
Recently, the application of diffusion models has facilitated the significant development of speech and audio generation. Nevertheless, the quality of samples generated by diffusion models still needs improvement. And the effectiveness of the method is accompanied by the extensive number of sampling steps, leading to an extended synthesis time necessary for generating high-quality audio. Previous Text-to-Audio (TTA) methods mostly used diffusion models in the latent space for audio generation. In this paper, we explore the integration of the Flow Matching (FM) model into the audio latent space for audio generation. The FM is an alternative simulation-free method that trains continuous normalization flows (CNF) based on regressing vector fields. We demonstrate that our model significantly enhances the quality of generated audio samples, achieving better performance than prior models. Moreover, it reduces the number of inference steps to ten steps almost without sacrificing performance.
title LAFMA: A Latent Flow Matching Model for Text-to-Audio Generation
topic Audio and Speech Processing
Sound
url https://arxiv.org/abs/2406.08203