8th International Conference on Spoken Language Processing

Jeju Island, Korea
October 4-8, 2004

A Forensic Phonetic Investigation into the Duration and Speech Rate

KyungHwa Kim

Supreme Public Prosecutor's Office, Korea

In this paper, the usefulness of the duration and rate of speech is examined as speaker identification parameter in forensic phonetics. Speech samples from 2 actual criminal cases were chosen. The duration and the duration ratio of each syllable of "yeo-bo-seyo (hello) and other repeated phrases in Korean delivered by the criminals and the suspects were measured. The results showed that duration ratio from the speech samples of one person were almost identical and were different from the other speaker. Subjects spoke at different speeds but, for more convincing results, it is necessary to consider the speaker's speaking habits of pause and hesitation, as well as different speech occasions and styles, which are also potential for speaker identification.

Full Paper

Bibliographic reference.  Kim, KyungHwa (2004): "A forensic phonetic investigation into the duration and speech rate", In INTERSPEECH-2004, 2353-2356.