Construction of speech corpus of AESOP-SD

The present study systematically states the construction of the corpus on the English learners, i.e., AESOP-SD. The content mainly consists of three parts: i) the background and significance of the corpus construction, which introduces the research background of the English learning in Asia and states the significance of the construction of the present corpus; ii) materials in the corpus, which contain a large amount of data, ranging from English words, English sentences, and English paragraphs to dialectal words, sentences and paragraphs; iii) recording procedure and data labeling, which states the recording environment and software in the data collection. Through the introduction of the construction of the corpus, the paper further states the theoretical and applicable value of the corpus, which can be adopted to conduct research in many research areas: e.g., second language acquisition, phonetic and phonological study, computer-aid system.