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SUMMARY:Perceived Voice Similarity and the Construction of Voice Parades -
  Dr Kirsty McDougall (University of Cambridge)
DTSTART:20151022T150000Z
DTEND:20151022T163000Z
UID:TALK61215@talks.cam.ac.uk
CONTACT:Theodora Alexopoulou
DESCRIPTION:In certain crimes\, a perpetrator’s voice may have been hear
 d at the scene of a crime\, but\nnot recorded. In such cases\, if the poli
 ce have already located a suspect\, a phonetician\nmay be asked to constru
 ct a ‘voice parade’ to be used in earwitness evidence. Analogous\nto a
  visual identity parade\, the witness is asked whether he or she can pick 
 out the voice of\nthe speaker heard at the crime scene from a line-up of r
 ecordings which includes the\nsuspect’s voice and a number of foil voice
 s.\nOne of the most difficult aspects of constructing a voice parade is se
 lecting the foil voices.\nAs well as the many practical challenges this pr
 esents\, there is currently no general theory\nof what makes voices sound 
 similar which would enable foil voices to be chosen in a\nprincipled way. 
 This talk will firstly present a general background to the construction of
 \nvoice parades and their associated theoretical and practical issues. Sec
 ondly\, an\nexperimental investigation of the phonetic underpinnings of pe
 rceived voice similarity for\nStandard Southern British and York Englishes
  will be described\, considering the roles\nplayed by aspects of speech su
 ch as fundamental frequency\, formant frequencies\, voice\nquality and art
 iculation rate\, alongside the effect of the listeners’ own accent backg
 round.\nImplications of the findings for voice parade construction will be
  discussed.
LOCATION:GR06/07\, English Faculty Building\, 9 West Road\, Sidgwick Site
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