杨俊杰,何磊,陈建新,胡耀民,李剑锋.音强斜率特性区别同卵双胞胎语音的实验研究*[J].,2019,38(3):364-370 |
音强斜率特性区别同卵双胞胎语音的实验研究* |
A study on comparing identical twins’ speech using slopes of intensity |
投稿时间:2018-08-28 修订日期:2019-04-25 |
中文摘要: |
目的 为了寻找司法话者识别中区别同卵双胞胎语音的有效参量。 方法 本文利用音节音强的斜率特性对联合使用音节间相对音强与相对时长仍无法准确区别的同卵双胞胎语音进行了定量统计实验研究。 结果 发现,在90%的置信度下,所有实验的双胞胎语音均能够被音节斜率予以区别,并且音强下降斜率的区别力明显高于音强上升斜率的区别力。结论 得出音节音强的斜率特性具有比音节间相对音强与相对时长二者联合检验更强的区别力,可以作为区别同卵双胞胎语音的有效参量。 |
英文摘要: |
Objective In order to find effective parameters to distinguish identical twins from speech in Forensic Speaker Comparison. Method The identical twins’ speech, which can’t be distinguished using the relative intensity and relative duration across syllables, have been analyzed qualitatively by the positive and negative slopes of syllable intensity. Result All the twins’ speech can be distinguished using the slopes of intensity in the confidence level of 90%. And the distinguishing power of negative slope is higher than that of positive slope. Conclusion The slopes of intensity have more distinguishing value than that of the union of the relative intensity and relative duration across syllables, and can be used to identify identical twins’ speech. |
DOI:10.11684/j.issn.1000-310X.2019.03.011 |
中文关键词: 司法话者识别,音强斜率,同卵双胞胎语音,相对音强,相对时长 |
英文关键词: Forensic Speaker Comparison, Slopes of Intensity, Identical Twin’ Speech, Relative Intensity, Relative Duration |
基金项目:教育部规划基金项目 (19YJA740072), 山西警察学院科研创新团队项目、院重点科研项目 |
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