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Background/Aims: Previous research found that individual talkers have consistent differences in the production of segments impacting the perception of their speech by others. Speakers also produce multiple acoustic-phonetic cues to phonological contrasts. Less is known about how multiple cues covary within a phonetic category and across talkers. We examined differences in individual talkers across cues and whether token-by-token variability is a result of intrinsic factors or speaking style by examining within-category correlations. Methods: We examined correlations for 3 cues (voice onset time, VOT, talker-relative onset fundamental frequency, f0, and talker-relative following vowel duration) to word-initial labial stop voicing in English. Results: VOT for /b/ and /p/ productions and onset f0 for /b/ productions varied significantly by talker. Token-by-token within-category variation was largely limited to speaking rate effects. VOT and f0 were negatively correlated within category for /b/ productions after controlling for speaking rate and talker mean f0, but in the opposite direction expected for an intrinsic effect. Within-category talker means were correlated across VOT and vowel duration for /p/ productions. Some talkers produced more prototypical values than others, indicating systematic talker differences. Conclusion: Relationships between cues are mediated more by categories and talkers than by intrinsic physiological relationships.Talker differences reflect systematic speaking style differences.

Individual Talker and Token Covariation in the Production of Multiple Cues to Stop Voicing