Can Forensic Investigations Profit from Enhanced Speaker Recognition for Detecting Pouted Lips?

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Wiretapped telephone recordings are a standard investigative materials utilized by the police. Nonetheless, figuring out whether or not the voice on a recording belongs to the suspect in query stays a problem. Laura Smorenburg, a Ph.D. scholar, is working to handle this difficulty by investigating the function of various sounds in languages to enhance speaker recognition.

A person’s voice will be simply acknowledged by others, however it’s tougher to determine on a lower-quality telephone recording. This poses a problem for police investigations, as proof assortment more and more includes telephone recordings. Audio system’ recognition can enhance by analyzing completely different consonant sounds in particular contexts as they include extra details about the speaker. “The phonetic context of a phrase can affect pronunciation. If you communicate, you don’t pronounce the sounds individually, however joined collectively. That impacts the sounds themselves,” explains Smorenburg.

The Influence of Consonants on Speaker Recognition

By specializing in nasal and fricative consonants, Smorenburg analyzed the sounds to find out whether or not they maintain very important data on particular person audio system. The examine discovered that inspecting solely nasal and fricative consonants inside explicit sound contexts does result in an enchancment in speaker recognition. She does, however, word that sensible implementation stays a problem as little or no knowledge is usually obtainable for evaluation.

If sounds in particular sound contexts include extra details about the speaker, forensic analysts would be capable of work extra effectively, are Smorenburg’s findings. Understanding that forensic investigators should not have to think about phonetic context of their analyses can be a promising signal, and it simplifies the investigative course of.

Offered by Leiden College

Lips pouted or not? How improved speaker recognition might help forensic investigations (2023, June 12)
retrieved 13 June 2023

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