arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.11902eess.AS
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无ASR发音评估

ASR-Free Pronunciation Assessment

Sitong Cheng, Zhixin Liu, Lantian Li, Zhiyuan Tang, Dong Wang, Thomas Fang Zheng

摘要:

大多数发音评估方法基于从自动语音识别(ASR)导出的局部特征,例如,发音良好(GOP)评分。在本文中,我们研究了一个ASR的评分方法,是来自原始语音信号的边缘分布。假设是,即使我们没有语言知识(所以不能识别音素/单词),我们仍然可以通过比较听目标语言的一些语音数据来判断发音有多好。我们的分析表明,这种新的评分方法提供了一个有趣的修正GOP的电话竞争问题。在ERJ数据集上的实验结果表明,结合ASR-自由得分和GOP可以实现比GOP基线更好的性能。

英文摘要:

Most of the pronunciation assessment methods are based on local features derived from automatic speech recognition (ASR), e.g., the Goodness of Pronunciation (GOP) score. In this paper, we investigate an ASR-free scoring approach that is derived from the marginal distribution of raw speech signals. The hypothesis is that even if we have no knowledge of the language (so cannot recognize the phones/words), we can still tell how good a pronunciation is, by comparatively listening to some speech data from the target language. Our analysis shows that this new scoring approach provides an interesting correction for the phone-competition problem of GOP. Experimental results on the ERJ dataset demonstrated that combining the ASR-free score and GOP can achieve better performance than the GOP baseline.

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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