CET-SET复杂考试环境下录音质量保障与检测方法研究  

Audio Recording Quality Assurance and Detection Methods in CET-SET

作　　者：吴奎 江政道 Wu Kui;Jiang Zheng-dao(Flytek Research Institute,Hefei 230088,China;National Education Examinations Authority,Beijing 100084,China)

机构地区：[1]科大讯飞研究院,合肥230088 [2]教育部教育考试院,北京100084

出　　处：《外语学刊》2023年第4期91-96,共6页Foreign Language Research

基　　金：教育部教育考试院科研项目“人工智能技术在英语口语开放性试题评卷中的应用”(GK2019002)的阶段性成果。

摘　　要：当前全国大学英语四、六级口语考试(CET-SET)全面采用计算机录音、人工评分或计算机智能辅助的方式进行评分工作,考生作答的录音质量会直接影响评分的准确性。在考试和评分过程中及时发现和处理异常录音样本能够有效保证考试顺利平稳进行,同时能够充分保证考生权益和考试公平。本文以CET-SET模拟考试中的数据为研究对象,对CET-SET录音数据的质量进行分析,提出针对CET-SET这类复杂环境下考试的录音质量保障方法和串联式录音异常样本检出方法,确保所有考生的作答录音能够进行最终准确评分,为保障CET-SET考试后续大规模开展奠定了坚实基础。The current CET-SET adopts computer recording,manual or machine-assisted scoring.The quality of speech record directly affects the accuracy of scoring.The timely detection and processing of abnormal recording samples during the examination and scoring process can effectively ensure the smooth process of the examination,and at the same time can fully guarantee the rights of candidates and the fairness of the examination.This paper takes CET-SET data as the research object,conducts a comprehensive analysis of the CET-SET speech record quality,and proposes a record quality assurance method for the CET-SET complex examination environment and an abnormal record detection method in tandem.The detection method ensures that all test-takers'recordings can be accurately scored,laying a solid foundation for ensuring the subsequent large-scale CET-SET exam.

关 键 词：CET-SET 录音质量 考试环境 音质检测 模拟考试 评分质量 

分 类 号：H319[语言文字—英语]