arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.07085cs.SDcs.CLcs.LGeess.AS
收藏

基于语音节奏的说话人嵌入从音素和音素时长中提取用于多说话人语音合成

Speech Rhythm-Based Speaker Embeddings Extraction from Phonemes and Phoneme Duration for Multi-Speaker Speech Synthesis

NTT Human Informatics Laboratories(NTT人类信息学研究所);NTT Corporation(NTT公司)

Kenichi Fujita, Atsushi Ando, Yusuke Ijima

AI总结:

本文提出一种基于语音节奏的说话人嵌入提取方法,通过音素及其时长建模目标说话人特征,实验表明其在仅用少量数据时即可提升多说话人语音合成中节奏还原的准确性。

摘要:

本文提出一种基于语音节奏的说话人嵌入方法,利用目标说话人的少量话语来建模音素时长。语音节奏是说话人特征的关键因素之一,与F0等声学特征一起,在语音合成中再现个人话语。该方法的新颖之处在于从音素及其时长中提取基于节奏的嵌入,这些信息已知与说话节奏相关。它们通过一个与传统基于频谱特征模型相似的说话人识别模型提取。我们进行了三项实验:说话人嵌入生成、使用生成嵌入的语音合成以及嵌入空间分析,以评估性能。所提方法展现了适中的说话人识别性能(15.2% EER),即使仅使用音素及其时长信息。客观和主观评估结果表明,所提方法能合成语音节奏比传统方法更接近目标说话人的语音。我们还对嵌入进行可视化以评估嵌入距离与感知相似性的关系。嵌入空间可视化及关系分析表明,嵌入分布反映了主观和客观相似性。

英文摘要:

This paper proposes a speech rhythm-based method for speaker embeddings to model phoneme duration using a few utterances by the target speaker. Speech rhythm is one of the essential factors among speaker characteristics, along with acoustic features such as F0, for reproducing individual utterances in speech synthesis. A novel feature of the proposed method is the rhythm-based embeddings extracted from phonemes and their durations, which are known to be related to speaking rhythm. They are extracted with a speaker identification model similar to the conventional spectral feature-based one. We conducted three experiments, speaker embeddings generation, speech synthesis with generated embeddings, and embedding space analysis, to evaluate the performance. The proposed method demonstrated a moderate speaker identification performance (15.2% EER), even with only phonemes and their duration information. The objective and subjective evaluation results demonstrated that the proposed method can synthesize speech with speech rhythm closer to the target speaker than the conventional method. We also visualized the embeddings to evaluate the relationship between the distance of the embeddings and the perceptual similarity. The visualization of the embedding space and the relation analysis between the closeness indicated that the distribution of embeddings reflects the subjective and objective similarity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑