Abstract
This paper examines, for the first time, the discriminant power of articulation rate (AR) in British English. Approximately 3000 local ARs were measured in this study for 100 Southern Standard British English male speakers. In order to assess the evidential value of AR, likelihood ratios were calculated. The results suggest that AR performs well for same speaker comparisons. However, for different speaker comparisons, the system is performing just worse than chance. Overall, it appears that AR may not be the best speaker discriminant, although it is important to still consider AR in forensic speaker comparisons as there may be some individuals for which AR is highly idiosyncratic.
| Language | English |
|---|---|
| Title of host publication | Interspeech 2018 |
| Pages | 1828-1832 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2 Sep 2018 |
| Event | Interspeech 2018: Speech Research for Emerging Markets in Multilingual Societies - Hyderabad International Convention Centre, Hyderabad, India Duration: 2 Sep 2018 → 6 Sep 2018 http://interspeech2018.org/index.html (Link to Conference Website) |
Conference
| Conference | Interspeech 2018 |
|---|---|
| Country | India |
| City | Hyderabad |
| Period | 2/09/18 → 6/09/18 |
| Internet address |
|
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Articulation rate as a speaker discriminant in British English. / Gold, Erica.
Interspeech 2018. 2018. p. 1828-1832.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Articulation rate as a speaker discriminant in British English
AU - Gold, Erica
PY - 2018/9/2
Y1 - 2018/9/2
N2 - Identifying speech parameters that have both a low level of intra-speaker variability and a high level of inter-speaker variability is key when discriminating between individuals in forensic speaker comparison cases. A substantial amount of research in the field of forensic phonetics has been devoted to identifying highly discriminant speaker parameters. To this end, the vast majority of the existing literature has focused solely on vowels and constants. However, the discriminant power of speaking tempo has yet to be examined, despite its broad use in practice and it having been recognized.This paper examines, for the first time, the discriminant power of articulation rate (AR) in British English. Approximately 3000 local ARs were measured in this study for 100 Southern Standard British English male speakers. In order to assess the evidential value of AR, likelihood ratios were calculated. The results suggest that AR performs well for same speaker comparisons. However, for different speaker comparisons, the system is performing just worse than chance. Overall, it appears that AR may not be the best speaker discriminant, although it is important to still consider AR in forensic speaker comparisons as there may be some individuals for which AR is highly idiosyncratic.
AB - Identifying speech parameters that have both a low level of intra-speaker variability and a high level of inter-speaker variability is key when discriminating between individuals in forensic speaker comparison cases. A substantial amount of research in the field of forensic phonetics has been devoted to identifying highly discriminant speaker parameters. To this end, the vast majority of the existing literature has focused solely on vowels and constants. However, the discriminant power of speaking tempo has yet to be examined, despite its broad use in practice and it having been recognized.This paper examines, for the first time, the discriminant power of articulation rate (AR) in British English. Approximately 3000 local ARs were measured in this study for 100 Southern Standard British English male speakers. In order to assess the evidential value of AR, likelihood ratios were calculated. The results suggest that AR performs well for same speaker comparisons. However, for different speaker comparisons, the system is performing just worse than chance. Overall, it appears that AR may not be the best speaker discriminant, although it is important to still consider AR in forensic speaker comparisons as there may be some individuals for which AR is highly idiosyncratic.
KW - articulation rate
KW - speaking tempo
KW - forensic speaker comparison
KW - forensic phonetics
KW - likelihood ratios
U2 - 10.21437/Interspeech.2018-1384
DO - 10.21437/Interspeech.2018-1384
M3 - Conference contribution
SP - 1828
EP - 1832
BT - Interspeech 2018
ER -