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This paper proposes a method for automatic pronunciation assessment of Korean spoken by L2 learners by selecting the best feature set from a collection of the most well-known features in the literature. The L2 Korean Speech Corpus is used for assessment modeling, where the native languages of the L2 learners are English, Chinese, Japanese, Russian, and Mongolian. In our system, learners' speech is...
This paper aims to improve the performance of automatic pronunciation generation of foreign loanwords in Korean by using phonological knowledge and syllable-based segmentation. The loanword text corpus used for our experiment consists of 16.6K words extracted from the frequently used words in set-top box, music, and POI domains. At first, pronunciations of loanwords in Korean are obtained by manual...
The increasing demand for learning Korean as a foreign language yields a strong need for a CAPT system that is able to provide automatic tutoring. However, there is limited research on Korean pronunciation produced by non-natives. As a preliminary research towards developing a CAPT system for Chinese learners of Korean, we survey key findings of previous studies. And then, based on corpus analysis,...
This study investigated English segments produced by Korean learners using a large speech corpus. The study focused on capturing only the most noticeable segmental variations produced by learners and that were not found in smaller-scale studies. Analysis of the Korean learners' most noticeable variation patterns was performed by introducing a method of comparing the variation matrices of both Korean...
In this paper we present an experimental study exploiting structural Bayesian adaptation for handling potential mismatches between training and test conditions for real-world applications to be realized in our multilingual very large vocabulary speech recognition (VLVSR) system project sponsored by MOTIE (The Ministry of Trade, Industry and Energy), Republic of Korea. The goal of the project is to...
In this paper we will introduce the work of creation of a speech database to develop speech technology for disabled persons, which has been done as part of a national program to help better life for Korean people. We will report about the creation of speech database of a total of 160 persons: prompting items, designs, etc. for the creation of a database which is needed to develop an embedded key-word...
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