final-obstruent devoicing
Enable an agent to identify, compare and evaluate analyses of final-obstruent devoicing while distinguishing phonological contrast loss from gradient phonetic changes.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 17 findings · 29 questions
Obstruent targets and contrast Establish which consonants participate and what evidence makes the pattern a devoicing process.
Affected segment classes
Delimit the participating obstruents within the variety under study.
Participating obstruents
Record the proposed target set, observed coverage and exclusions without assuming all obstruents behave alike.
- Which stops, fricatives or affricates show the proposed final devoicing pattern? definition
- Which comparable obstruents fail to participate, and in which environments? boundary
Input contrast evidence
Connect final outputs to evidence for the categories claimed to undergo change.
Alternation and lexical support
Separate observed final-nonfinal correspondences from assumptions about underlying representations.
- Which related nonfinal forms or independently established contrasts support the proposed voiced input? provenance
- Could the observed final consonant instead be lexically voiceless, and what evidence distinguishes the accounts? boundary
Finality and prosodic domain Identify the boundary and segmental conditions that license devoicing.
Boundary diagnostics
Test candidate syllabic, lexical and prosodic domains.
Triggering boundary
Record the smallest supported boundary account and cases that distinguish it from alternatives.
- Does devoicing track syllable codas, word endings, prosodic-word endings or phrase endings? boundary
- Which forms separate these candidate domains rather than satisfying all of them at once? measurement
Connected-speech contexts
Examine following segments, pauses and possible changes to syllable affiliation.
Following-context effects
Distinguish sensitivity to final position from assimilation, pausal effects and resyllabification.
- What happens to the same word-final obstruent before a vowel, a voiced consonant, a voiceless consonant and a pause? measurement
- What independent evidence supports resyllabification or assimilation when either is used to explain an exception? provenance
Laryngeal outcome and neutralization Characterize the output and assess whether the relevant contrast survives.
Phonetic realization
Describe measurable laryngeal and temporal properties of final obstruents.
Devoicing measurement
Specify how consonantal voicing and associated cues are measured for each segment class.
- How are consonant boundaries and periodic voicing identified for stops, fricatives and affricates in the data? measurement
- Which acoustic or articulatory observations justify describing the output as devoiced? measurement
Contrast survival
Test whether categories that contrast elsewhere remain distinguishable in final position.
Complete or incomplete neutralization
Record acoustic and perceptual results separately, including uncertainty about undetected differences.
- Do matched final forms retain reliable differences in vowel duration, consonant duration, voicing or release properties? measurement
- Can listeners distinguish the proposed neutralized categories when lexical and contextual cues are controlled? measurement
- What precision and statistical sensitivity support the conclusion that any remaining difference is absent or negligible? boundary
Morphological and phonological interactions Track how inflection, derivation and interacting processes expose or alter final devoicing.
Paradigm alternations
Compare related forms that place the relevant obstruent in different positions.
Final-nonfinal correspondence
Record attested paradigmatic evidence and limits on generalization.
- Which inflected or derived forms place the same stem-final obstruent in a nonfinal environment, and how does its realization change? provenance
- Do compounds, affixes or particular morphological classes preserve unexpected devoicing or voicing? boundary
Interacting processes
Assess explanations involving assimilation, syllabification or other changes to the environment.
Interaction and prediction
Represent competing analyses through their different observable predictions.
- Where do alternative orderings or constraint analyses predict different outcomes for final devoicing and neighboring-segment assimilation? boundary
- Which additional forms should an agent elicit to distinguish those predictions? action
Variation and evidence quality Bound the analysis by population, speaking conditions and the evidence actually available.
Speaker and task conditioning
Identify variation associated with speakers and production conditions.
Conditioned devoicing patterns
Record application and cue distributions under specified speech conditions.
- How do devoicing and residual contrast vary across speakers, speaking rates, styles and prosodic prominence? measurement
- Do reading tasks, spelling visibility or explicit attention to contrasts alter the observed pattern? measurement
Attestation and inference limits
Connect each language-specific conclusion to inspectable evidence and a stated coverage limit.
Evidence-backed analysis
Distinguish descriptive reports, analyzed recordings and theoretical interpretations.
- Which consulted descriptions, recordings or experiments support each claim about final devoicing in this variety? provenance
- Which untested segment classes, boundaries or speaker groups prevent broader generalization? boundary
- What evidence would require revising the target set, triggering domain or neutralization assessment? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these kinds and varieties hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these typical measurements hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these regional variation hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of final-obstruent devoicing this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Information and virtual systems
- Entry kind
- thing
- Plane
- INF
- Domain
- INF.KNW
What it is Filled
Final-obstruent devoicing is a phonological process in which a language's voiced obstruents are realized as voiceless in a specified final position, typically at the end of a word or syllable, often neutralizing a voicing contrast.
In scope
- Identification of obstruents affected by devoicing in a specified language variety
- Word-, syllable- or phrase-final environments proposed to trigger the process
- Relations between final outputs and contrastive or alternating nonfinal forms
- Phonological neutralization and the phonetic cues used to test it
- Interactions with morphology, resyllabification and adjacent segments
- Variation across speakers, speech styles and elicitation conditions
Out of scope
- Complete phonological inventories and grammars of individual languages
- General voicing assimilation without an independently established final-position condition
- Initial or intervocalic devoicing unrelated to final-obstruent devoicing
- Final consonant deletion or debuccalization considered as separate processes
- Orthographic spelling conventions treated as direct evidence of pronunciation
- Clinical voice disorders and nonlinguistic uses of the word devoicing
Why it exists Filled
Enable an agent to identify, compare and evaluate analyses of final-obstruent devoicing while distinguishing phonological contrast loss from gradient phonetic changes.
Distinguishing features Filled
- The affected segment is an obstruent; final sonorant devoicing alone does not establish this process.
- The account identifies a final-position domain and tests whether that boundary predicts devoicing.
- A devoicing analysis requires evidence for a laryngeal change or alternation, rather than merely observing an inherently voiceless final consonant.
- Finality must be separated from adjacent-segment effects before attributing a pattern to final devoicing rather than voicing assimilation.
- A claim of complete neutralization requires testing whether formerly contrasting categories remain distinguishable; reduced vocal-fold vibration alone does not settle that claim.
What robots and AI may and may not do Filled
Must not
- Present the process as universal or as a sign of careless speech.
- Mark learners' accents as wrong because of it without context.
- Invent language data to fit a claim.
- Use it to rank languages or their speakers.
Only with a human decision
- Using a phonological judgement in a language test with consequences for a person.
May
- Explain final-obstruent devoicing with examples from languages such as German, Dutch or Russian.
- Describe where and how languages differ in applying it, citing linguistic sources.
Moral aspects Filled
- Accent judgements can disadvantage learners in school, work and migration.
- Linguistic description should not be turned into a value judgement on speakers.
Who is affected
- Language learners
- Speakers of languages with the process
Owners Filled
Steward
Nobody owns it; linguists describe it.
Links to other meta-models Filled
parent
- Q4117161 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.final-obstruent-devoicing
- Wikidata: Q779384 (https://www.wikidata.org/wiki/Q779384)
Direct properties not applicable Not applicable
- Language variety and speaker population: Named language, dialect or variety linked to sampled speakers
- Affected obstruent classes: Explicit segment sets, grouped as stops, fricatives or affricates where appropriate
- Triggering final domain: Syllable-final, word-final, prosodic-word-final, phrase-final or unresolved
- Laryngeal input-output analysis: Proposed input category linked to observed output and the framework used to represent it
- Closure or constriction voicing proportion: Percentage of a specified consonantal interval showing periodic voicing
- Residual contrast cues: Cue-specific differences, such as preceding-vowel duration, consonant duration or release timing in milliseconds
- Neutralization assessment: Untested, evidence consistent with complete neutralization, residual distinction detected, or conflicting evidence
- Conditioned application: Observed application rate with a stated decision criterion, token count and conditioning context
Plane INF: no invented physical properties.
Recognition not applicable Not applicable
Not applicable
This phonological process has no intrinsic visual appearance and is identified through speech evidence and linguistic analysis.
Capabilities and actions required Filled
- Determine whether an observed final consonant pattern supports a devoicing analysis.
- Compare competing syllable-, word- and phrase-boundary accounts against observed forms.
- Construct matched final and nonfinal comparisons that test laryngeal alternations.
- Evaluate complete-neutralization claims using acoustic and perceptual evidence.
- Generate context-specific pronunciation predictions with explicit limits and exceptions.
- Identify missing contrasts or controls before extending an analysis to another variety.
Hazards and failure modes required Filled
- Treating devoicing as universal can produce incorrect pronunciations or transcriptions for languages and dialects with different patterns.
- Assuming complete phonetic identity can erase residual acoustic differences and distort linguistic analysis.
- Speech systems that misinterpret predictable devoicing can confuse words and reduce recognition accuracy for affected speakers.
Standards and interfaces not applicable Not applicable
Not applicable
No standard, law or official classification directly regulates this linguistic process.
Context of use required Filled
- Final-obstruent devoicing is studied in phonology and phonetics to explain how consonant voicing depends on position within words or syllables.
- It is relevant to pronunciation teaching, speech recognition and speech synthesis because written consonants may differ from their spoken realization.
- Analyses compare final consonants with related forms in other positions to establish whether a voicing contrast is neutralized.
Sources Filled
- Wikidata item Q779384: final-obstruent devoicing - identity and sense of the item
- Wikipedia: Final-obstruent devoicing - general description of the item
Open questions
- Which researched language varieties should anchor the model's worked examples and counterexamples?
- How should the model compare analyses using voicing features with analyses using other laryngeal representations without assuming their equivalence?
- What evidence threshold should distinguish complete neutralization from a residual contrast too small for the available study to detect?
- Which diagnostics most reliably separate word-final, syllable-final and phrase-final conditioning in the selected varieties?
- How should cases with no attested nonfinal alternant be classified when the proposed underlying laryngeal category remains uncertain?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q779384/spec.json