LING 290 Lecture Notes - Lecture 12: Speaker Recognition, Paralanguage, Vocal Folds
31 Mar 2016
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In court to tesify if a speech sample is produced by a criminal (as compared to a reference sample of the same speaker) Characterisics of speaker voice at the ime of crime compared to normal. Produce a speaker proile on the basis of a recorded speech sample, including informaion on sex, age, regional and social background, and educaion. Determine what is said rather than the idenity of the speaker (content-based) Enhancement techniques: digital iltering to reduce unwanted noise. Tape authenicaion is conducted to establish whether recordings can be accepted as evidenial recordings. Whether recording was made at the ime, it is alleged to have been made, whether it is complete and unedited. Acousic feature (f0), intonaion, and vowel quality, etc. Voice recordings can reveal whether a person is intoxicated or not. Invesigaion of the exon valdez oil spill at prince william sound, alaska, in 1989. Analyze the speech produced by captain hazelwood before, during, and ater the accident.
