Speaker or Language? Explaining Variance in Charismatic Prosody Across Luxembourgish and French
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Computer Science > Computation and Language
arXiv:2609.16275 (cs)
[Submitted on 30 Jul 2026]
Title:Speaker or Language? Explaining Variance in Charismatic Prosody Across Luxembourgish and French
View a PDF of the paper titled Speaker or Language? Explaining Variance in Charismatic Prosody Across Luxembourgish and French, by Nina Hosseini-Kivanani and 3 other authors
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Abstract:Charismatic speech is shaped by language and speaking style, yet their relative contribution in bilingual public speaking remains unclear. We analyzed spontaneous speeches of 10 politicians who address audiences in Luxembourgish and French, in highly comparable communicative contexts across languages. From 400 utterances, we extracted 41 acoustic-prosodic features linked to vocal charisma and fitted mixed-effects models to separate speaker- and language-related variance. Speaker identity accounted for most variance, whereas language explained less, but still showed systematic differences: French productions showed higher shimmer and phrase-final F0, indicative of a polite, respectful voice, while Luxembourgish productions exhibited stronger mid-frequency spectral energy, suggesting a more vocally present profile. These patterns align with the sociolinguistic roles of Luxembourgish as an informal identity language and French as a high-prestige institutional variety.
| Comments: | 5 pages, 2 figures, 2 tables (Accepted to Interspeech2026) |
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2609.16275 [cs.CL] |
| (or arXiv:2609.16275v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2609.16275
arXiv-issued DOI via DataCite (pending registration)
|
Submission history
From: Nina Hosseini-Kivanani [view email][v1] Thu, 30 Jul 2026 13:15:17 UTC (605 KB)
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View a PDF of the paper titled Speaker or Language? Explaining Variance in Charismatic Prosody Across Luxembourgish and French, by Nina Hosseini-Kivanani and 3 other authors
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