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An Investigation of Acoustic Models for Multilingual Code-Switching

机译:多语言码切换声学模型的研究

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Multilingual speech processing continues to develop as speechtechnology spreads to heterogeneous clients and applications.We address a distinct problem of code-switching — the spon-taneous but occasional use, within speech in one language (re-ferred to as L_1),of words, phrases, expressions or idioms froma second language (L-_2).We examine two alternatives for mod-eling the acoustics of such words: creation of L1 pronunciationsfor the out-of-language (OOL) words for use with L_1acousticmodels, and retention of their L_2 pronunciations for use withmultilingual acoustic models. We test the hypothesis that thelatter is a better acoustic model for OOL words. We develop aset of lexica in IPA form, a global phoneme inventory, and han-dle the problem of L_2 word pronunciation by creating linguis-tically motivated pairwise mappings. We show that retentionof L_2 pronunciations with multilingual acoustic models betterexplains the observations when restricted to a forced alignment.
机译:多语言语音处理继续开发,因为语音技术传播到异构客户端和应用程序。我们解决了代码切换的一个不同的问题 - Spon-tainnical但偶尔使用,在一种语言中的语音内(重新加入为L_1),来自第二语言(L-_2)的短语,表达或习语.We检查Mod-Eling这样的单词的两个替代方法:L1的创建为L_1声学墨水使用的语言(OOL)单词和保留他们的L_2发音与MultIngual Muthical Models一起使用。我们测试该假设,即Thelater是OOL词语的更好的声学模型。我们在IPA表单中,全球音素库存和Han-DLE通过创建面临的基本动机的成对映射来开发Lexica的ASET。我们表明L_2发音与多语言声学模型的留言,在限制到强制对齐时缺陷观察。

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