In-between speech: the speaker-specificity of non-speech vocalisations

在犯罪期间，受害者或证人可能会听到犯罪者的声音，但看不到他们的脸，然后要求他们从语音识别序列中辨认出他们。在其他地方，一名分析人士将肇事者的犯罪录音与嫌疑人的讲话样本进行了比较。法医语音科学领域关注的是如何根据一个人的声音来识别他们，但有时两个被比较的样本是不匹配的。在犯罪的情况下，可能没有太多的实际说话-相反，可能只有尖叫、呻吟或笑声，称为非言语发声(NSV)。然而，在比较的样本或语音序列中，通常只有语音，并且NSV被丢弃。目前尚不清楚的是，说话人是否能准确地从NSV中识别出来。这个项目将通过询问听众如何准确地识别来自不同NSV类型的说话人，以及不同NSV类型的说话人特定的声学特征如何变化来调查这个问题。它还将探索那些容易被他们的NSV识别的说话者是否也同样容易被他们的语音识别。这将使外地受益，因为它提高了我们对非国家志愿人员如何识别说话者的理解。

During a crime, victims or witnesses may hear a perpetrator's voice without seeing their face andare later asked to identify them from a voice identification line-up. Elsewhere, an analyst compares an incriminating recording of a perpetrator with a sample of a suspect's speech. The field of forensic speech science is concerned with how to identify a person from their voice, but sometimesthe two samples being compared are mismatched. In the situation of a crime, there may not be much actual speech - instead, there may be only screams, groans, or laughter, known as non-speech vocalisations (NSVs). In the compared sample or voice line-up, however, there is typically only speech, and NSVs are discarded. What is currently unknown is whether speakers can accurately be identified from NSVs. This project will investigate this question by asking howaccurately listeners identify speakers from different NSV types, and how speaker-specific acoustic features vary in different NSV types. It will also explore whether speakers who are easily recognised by their NSVs are also equally easily recognised by their speech. This will benefit the field by improving our understanding of how speakers can be identified by NSVs.