Some Studies on the Relationship Between Slurred Speech and IntoxicationÂ
In this study, male talkers uttered sentences while sober and then in an impaired state. They were recorded, and then the recordings were used for two experiments. First, the researchers listened to the two different recordings to determine whether there were differences in the way the men spoke when sober versus when impaired. Then, the recordings were played for college undergraduates, as well as Indiana State Troopers, who were asked to judge whether individual sentences were produced by a sober or an intoxicated speaker. While the first test found differences in people’s speech between sober and impaired states, the second found that both the students and the police officers were poor judges of whether speech was produced by a sober or drunk individual.
Similarly, another study found that speech patterns do not always show whether or not a person is impaired by alcohol. While most of the subjects in this study exhibited changes in speech as their BAC rose, nearly one-fifth of them spoke in a similar fashion regardless of BAC.
Can machines tell if people are drunk?
In another test, eleven individuals recited a text twice, once when sober and once after becoming intoxicated. The researchers then used statistical analysis to evaluate various speech parameters. The results showed that acoustic analysis is not useful in determining whether or not the person speaking was drunk or sober while being recorded.
Can people be fooled?
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