VALL-E 2: Neural Codec Language Models are Human Parity Zero-Shot Text to Speech Synthesizers

Fuente: arXiv
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Auteurs principaux: Chen, Sanyuan, Liu, Shujie, Zhou, Long, Liu, Yanqing, Tan, Xu, Li, Jinyu, Zhao, Sheng, Qian, Yao, Wei, Furu
Format: Preprint
Publié: 2024
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author Chen, Sanyuan
Liu, Shujie
Zhou, Long
Liu, Yanqing
Tan, Xu
Li, Jinyu
Zhao, Sheng
Qian, Yao
Wei, Furu
author_facet Chen, Sanyuan
Liu, Shujie
Zhou, Long
Liu, Yanqing
Tan, Xu
Li, Jinyu
Zhao, Sheng
Qian, Yao
Wei, Furu
contents This paper introduces VALL-E 2, the latest advancement in neural codec language models that marks a milestone in zero-shot text-to-speech synthesis (TTS), achieving human parity for the first time. Based on its predecessor, VALL-E, the new iteration introduces two significant enhancements: Repetition Aware Sampling refines the original nucleus sampling process by accounting for token repetition in the decoding history. It not only stabilizes the decoding but also circumvents the infinite loop issue. Grouped Code Modeling organizes codec codes into groups to effectively shorten the sequence length, which not only boosts inference speed but also addresses the challenges of long sequence modeling. Our experiments on the LibriSpeech and VCTK datasets show that VALL-E 2 surpasses previous systems in speech robustness, naturalness, and speaker similarity. It is the first of its kind to reach human parity on these benchmarks. Moreover, VALL-E 2 consistently synthesizes high-quality speech, even for sentences that are traditionally challenging due to their complexity or repetitive phrases. The advantages of this work could contribute to valuable endeavors, such as generating speech for individuals with aphasia or people with amyotrophic lateral sclerosis. See https://aka.ms/valle2 for demos of VALL-E 2.
format Preprint
id arxiv_https___arxiv_org_abs_2406_05370
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle VALL-E 2: Neural Codec Language Models are Human Parity Zero-Shot Text to Speech Synthesizers
Chen, Sanyuan
Liu, Shujie
Zhou, Long
Liu, Yanqing
Tan, Xu
Li, Jinyu
Zhao, Sheng
Qian, Yao
Wei, Furu
Computation and Language
Sound
Audio and Speech Processing
This paper introduces VALL-E 2, the latest advancement in neural codec language models that marks a milestone in zero-shot text-to-speech synthesis (TTS), achieving human parity for the first time. Based on its predecessor, VALL-E, the new iteration introduces two significant enhancements: Repetition Aware Sampling refines the original nucleus sampling process by accounting for token repetition in the decoding history. It not only stabilizes the decoding but also circumvents the infinite loop issue. Grouped Code Modeling organizes codec codes into groups to effectively shorten the sequence length, which not only boosts inference speed but also addresses the challenges of long sequence modeling. Our experiments on the LibriSpeech and VCTK datasets show that VALL-E 2 surpasses previous systems in speech robustness, naturalness, and speaker similarity. It is the first of its kind to reach human parity on these benchmarks. Moreover, VALL-E 2 consistently synthesizes high-quality speech, even for sentences that are traditionally challenging due to their complexity or repetitive phrases. The advantages of this work could contribute to valuable endeavors, such as generating speech for individuals with aphasia or people with amyotrophic lateral sclerosis. See https://aka.ms/valle2 for demos of VALL-E 2.
title VALL-E 2: Neural Codec Language Models are Human Parity Zero-Shot Text to Speech Synthesizers
topic Computation and Language
Sound
Audio and Speech Processing
url https://arxiv.org/abs/2406.05370