Examining the extent of anticipatory coronal coarticulation: A long-term average spectrum analysis
Bibliographic record
Abstract
Phonetic studies of English liquids /r/ and /l/ have shown these consonants can exert strong coarticulatory effects on both adjacent and non-adjacent vowels. The current study investigated local and long-range effects of coronals /l/, /r/, and /d/ in Canadian English. Fourteen speakers were recorded reading the sentences 'We thought it might be a ram/lamb/dam/ham'. Formants F1-F3 and long-term average spectra (LTAS) of 5 vowels preceding the target consonants were calculated and compared to baseline values. The results revealed significant differences between the coronal consonants and the control (/h/) in up to 4 preceding syllables. Formant differences in non-adjacent syllables were limited to F3 (lower for /r/ than the other consonants) and were attenuated in stressed syllables. Non-adjacent LTAS differences were overall more robust, but primarily differentiated between coronals and the non-coronal /h/. Overall, /r/ showed the greatest effect on non-adjacent preceding vowels, followed by /l/, and then by /d/. The formant and LTAS methods appear to capture somewhat different, yet equally important aspects of local and long-range coarticulation. The LTAS findings suggest that higher-frequency information, while generally disregarded for speech, may contain significant coarticulatory information.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".