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On sentence content, speaker familiarity and dialect

This study explores various factors that affect speaker identification among Swedish listeners, particularly focusing on dialect familiarity, speaker familiarity, age, semantic expectations, memory, and emotional state. We examined responses from native Swedish speakers from Scania and Northern Sweden exposed to different speech contexts, including political and cooking discourse. The findings reveal how familiarity with dialects and speakers influences recognition rates and discusses implications for future research and applications in voice imitation and identification.

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On sentence content, speaker familiarity and dialect

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  1. On sentence content, speaker familiarity and dialect Elisabeth Zetterholm, Erik J. Eriksson & Kirk P.H. Sullivan IAFPA 2006

  2. Factors that may affect speaker identification The listeners’… • languge and dialect familiarity • familiarity with the speaker • age • semantic expectation • memory • emotional state IAFPA 2006

  3. Language familiarity Hollien (2002): ’Most investigators have come to the conclusion that listeners find it difficult to identify talkers when they are speaking in a language other than their own’. • Distracts the listener • Subtle nuances in the language itself can be masked or lost • Tend to reduce the number of available segmental constrasts What about Swedish listeners and their different dialectal background? IAFPA 2006

  4. A synthesis of results This presentation focus on the listeners’ semantic expectation, speaker familiarity, different dialect background and their age • A study of one Swedish bidialectal male speaker • Voice imitation of one Swedish politician • political speech • cooking speech - ’how to bake a cake’ IAFPA 2006

  5. One Swedish bidialectal speaker • The Princess and the Pea • One male bidialectal Swede • Four foils • Listeners from Scania and Northern Sweden IAFPA 2006

  6. The listeners • Native speakers of Swedish from the region of Scania and the Northern Sweden • 80 listeners – 50% male, 50% female • 40 listeners from Scania • 10 in each test • 40 listeners from Northern Sweden • 10 in each test IAFPA 2006

  7. Four voice line-up The composition of the voice identification tests SC = Scania, ST = Stockholm IAFPA 2006

  8. Results – all listenersCan the bidialectal speaker’s voice be identified? IAFPA 2006

  9. Results - dialect shifting tests Test 1: J2 training voice J1 target voice Inf2 – same dialect area as J2 Test 2: J1 training voice J2 target voice Inf3 – same dialect area as J1 IAFPA 2006

  10. Results – listeners from North and SouthA regional difference? Control tests Dialect shifting tests IAFPA 2006

  11. Imitation of one Swedish politican POLITICAL SPEECH • Professional imitation of Carl Bildt by AM • Carl Bildt (Swedish politician) • AM natural voice • 4 other male adult speakers of Swedish COOKING SPEECH • Professional imitation of Carl Bildt by AM IAFPA 2006

  12. The listeners • Exp 1 (political familiarisation passage) 128 adults 56 teens • Exp 2 (cooking familiarisation passage) 121 adults 57 teens IAFPA 2006

  13. Results – the topic Political speech Cooking speech IAFPA 2006

  14. Speaker familiarity IAFPA 2006

  15. Results – speaker familiarity FCB+ FCB- Political speech Cooking speech IAFPA 2006

  16. Results – different dialect background and age IAFPA 2006

  17. Speaker and dialect familiarity IAFPA 2006

  18. Discussion - sentence content • Expectation • if you know the speaker/the target voice • if you use the same topic in the line-up as in the familiarization passage IAFPA 2006

  19. Discussion - familiarity with the speaker or the target voice • Improve the results in a speaker recognition test • A voice imitation often exaggerated for entertainment – and for recognition • Support other studies in this area • among others; Hollien, Majewski & Doherty 1983, Yarmey 1995 IAFPA 2006

  20. Discussion - familiarity with the dialect • Familiarity with the dialect increase the identification rate… • …but not in a dialect switch-condition (’native’ dialect) • Listeners’ dialectal background seem to have an impact, especially if they are not familiar with the target voice IAFPA 2006

  21. Thanks! Acknowledgements: Funded by a grant from Band of Swedish Tercentenary Foundation Dnr K2002-1121:1-4 to Umeå University for the project ’Imitated voices: A research project with applications for security and the law’. IAFPA 2006

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