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第 38 卷 第 3 期                                                                       Vol. 38, No. 3
             2019 年 5 月                          Journal of Applied Acoustics                      May, 2019

             ⋄ 研究报告 ⋄



                音强斜率特性区别同卵双胞胎语音的实验研究                                                                    ∗






                                杨俊杰     1†   何 磊     2  陈建新      1   胡耀民     1   李剑锋     3


                                            (1 山西警察学院刑事科学技术系        太原   030401)
                                            (2 苏黎世大学计算语言学院       苏黎世   CH-8050)
                                              (3 北京阳宸电子技术公司       北京   100029)

                摘要    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，该文利用音节音强的斜率特性对同卵双胞
                胎语音进行了实验研究。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音强斜率予以
                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。因此得出结论，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。
                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
                中图法分类号: O429           文献标识码: A          文章编号: 1000-310X(2019)03-0364-07
                DOI: 10.11684/j.issn.1000-310X.2019.03.011



                   A study on comparing identical twins’ speech using slopes of intensity




                           YANG Junjie  1  HE Lei 2  CHEN Jianxin 1  HU Yaomin  1  LI Jianfeng 3

                        (1 Department of Criminal Science and Technology, Shanxi Police College, Taiyuan 030401, China)
                 (2 Phonetics Laboratory, Institute of Computational Linguistics, University of Zurich, Zurich CH-8050, Switzerland)
                                (3 Beijing Yangchen Electronic Technology Company, Beijing 100029, China)

                 Abstract  In this paper, the slope characteristics of syllable intensity are used to find effective parameters
                 to distinguish identical twins’ speech in forensic speaker comparison. It is found that at 90% confidence, the
                 twins’ speech of all experiments can be distinguished by the syllable intensity slopes, and the difference in the
                 negative slope is significantly higher than the difference in the positive slope. Therefore, it is concluded that
                 the slope characteristics of the syllable intensity have a stronger discriminating power than the joint test of the
                 relative intensity and the relative duration between the syllables, and can be used as an effective parameter for
                 distinguishing the identical twins’ voices.
                 Key words Forensic speaker comparison, Slopes of intensity, Identical twin’ speech, Relative intensity, Rel-
                 ative duration







             2018-08-28 收稿; 2018-12-28 定稿
             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
             ∗
             作者简介: 杨俊杰 (1973- ), 男, 山西襄汾人, 博士, 副教授, 研究方向: 司法语音与声学。
             † 通讯作者 E-mail: 545668179@qq.com
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