早期的谎言测试技术易受个人和环境影响,同时反测谎技术对其影响也很大。基于脑电信号的测谎技术虽然能够直接观察撒谎行为发生时内部相关脑区的神经活动,更加客观地揭示撒谎活动的内部规律,但是此类技术所需的专业设备庞大而贵重。相比之下,语音测谎技术具有时空跨越性和高隐蔽性等优点。本文介绍当前测谎技术的发展情况和基本原理,介绍并分析了当前的非语音测谎指标和声学相关指标的类型及特点;然后介绍了目前公开的几种语音相关的测谎数据库,并重点阐述了语音测谎分类算法的研究进展;最后从汉语测谎语料库建立、语音特征表达、反测谎技术研究、理论研究和配套工作开展等方面对语音测谎技术进行了展望。
The early polygraph technology is easily affected by personal factors and external environment, especially the anti-polygraph technology. Although lie detection technology based on electroencephalogram can directly observe neural activity of the relevant brain regions to reveal the internal rules when lies occur, the required professional equipment is too large and expensive to use handle. Compared with the above technologies, lie detection technology in speech has spatio-temporal span and high concealment, etc. The development situation of current polygraph technology and basic principle are described, the types and characteristics of non-speech and speech related indicators are introduced and analyzed. Then, several public speech databases for lie detection are introduced, and the research progress of lie detection algorithm is highlighted. Finally, the future direction of lie detection technology in speech is summarized from five parts, i. e. , the Chinese corpus, speech feature extraction, anti-polygraph technology, theoret- ical research and related auxiliary work.