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arXiv 2212.04559eess.AScs.LGcs.SD
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SpeechLMScore:使用语音语言模型评估语音生成

SpeechLMScore: Evaluating speech generation using speech language model

Carnegie Mellon University(卡内基梅隆大学);The University of Tokyo(东京大学)

Soumi Maiti, Yifan Peng, Takaaki Saeki, Shinji Watanabe

摘要:

虽然人工评估是评估语音生成系统的最可靠指标,但它通常成本高且耗时。以往的语音质量自动评估研究都是通过机器学习模型预测人的语音质量评估分数来解决这个问题。然而,它们依赖于监督学习,因此遭受高注释成本和域转移问题。我们提出了SpeechLMScore,一个无监督的度量来评估生成的语音使用语音语言模型。SpeechLMScore通过将语音信号映射到离散标记来计算语音信号的平均对数概率,并测量生成标记序列的平均概率。因此,它不需要人工注释,是一个高度可扩展的框架。评估结果表明,该指标显示出良好的相关性与人类的评价分数在不同的语音生成任务,包括语音转换,文本到语音,和语音增强。

英文摘要:

While human evaluation is the most reliable metric for evaluating speech generation systems, it is generally costly and time-consuming. Previous studies on automatic speech quality assessment address the problem by predicting human evaluation scores with machine learning models. However, they rely on supervised learning and thus suffer from high annotation costs and domain-shift problems. We propose SpeechLMScore, an unsupervised metric to evaluate generated speech using a speech-language model. SpeechLMScore computes the average log-probability of a speech signal by mapping it into discrete tokens and measures the average probability of generating the sequence of tokens. Therefore, it does not require human annotation and is a highly scalable framework. Evaluation results demonstrate that the proposed metric shows a promising correlation with human evaluation scores on different speech generation tasks including voice conversion, text-to-speech, and speech enhancement.

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。

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