ATLAS OF LANGUAGE

AT-088-004 · ATLAS 260

Sonority

The relative degree of sonority of sounds, which helps determine their preferred order within a syllable.

Part of the subject path Sound, Phonetics and Phonology

Why is this entry in the Atlas?

A · Analytical concept R1 · Distinct contribution to understanding

Sonority organises sound classes through a relative prominence model that makes syllable structure comparable. Its role is testing an explanatory scale, not equating fullness of sound with loudness or a universal law.

Colours and admission grounds

The rectangular label identifies the entry function: F – linguistic figure or procedure; A – analytical concept; G – foundational concept; E – selected concrete case. The rounded badge indicates the admission ground: R1 – distinctive contribution; R2 – necessary foundation; R3 – justified illustrative case. This editorial rationale explains the current selection rather than claiming an undocumented original selection history.

Explanation

Sonority is the relative auditory prominence of sound classes that often helps determine their preferred ordering within a syllable. Vowels are typically treated as more sonorous than approximants, nasals, fricatives, and stops; many syllables rise toward the nucleus and fall thereafter. This scale is a phonological model, not a direct measure of loudness. Acoustic energy, aperture, periodicity, and language-specific organisation contribute in different ways, while many complex margins require additional principles. The concept leads from individual sounds to the internal movement of the syllable: edges open toward a peak and close again. Its explanatory value lies in typological tendencies rather than in an exceptionless natural law governing every possible sound sequence.

Movement of thought

1. Several consonants and vowels first form a linear sequence whose internal grouping has not yet been explained. 2. The sounds are ordered by relative auditory prominence, and a highly sonorous portion commonly serves as the syllable nucleus. 3. Sonority often rises toward the nucleus and falls thereafter, clarifying margins and preferred sequences of segments. 4. A counter-test separates sonority from loudness and controls language-specific exceptions, complex margins, and alternative analyses. 5. The syllable returns as a dynamic contour rather than a container, with a peak organising articulation and perception.

Scientific use case

Phonology and typology compare syllable inventories, sonority scales, and loanword repair. Acoustic and perception studies test which physical correlates support the language-specific ordering.

Example

In plan, the sequence moves from /p/ through the more sonorous /l/ to the vocalic peak /æ/; rising prominence supports organisation of the onset.

Counterexample

A stop may be pronounced at high physical intensity yet remain less sonorous on a phonological scale than a quietly spoken vowel. Loudness and sonority are not equivalent.

Distinction

Distinguish sonority from physical loudness, voicing, and general musicality. It is a relative phonological prominence scale whose ranking and explanatory reach vary across theories and languages.

Effect on thought and perception

Sonority makes the syllable intelligible as a graded movement of sound and explains many, though not all, restrictions on possible sequences.

Resonance

A syllable grows from less resonant margins toward an audible peak and falls away, becoming perceptible as a small landscape of resonance.

Cite this entry

Reich, Michael (Hrsg./ed.): „Sonority“. Atlas der Sprache, AT-088-004. ATLAS 260, data model 1.6.0. https://atlasoflanguage.com/concept/AT-088-004

https://atlasoflanguage.com/concept/AT-088-004

The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.

Historical background

The Cours does not merely appeal to sonority to explain syllables; it challenges explanations that make relative audibility do all the work. Its discussion considers sounds functioning as syllabic centres even when a simple loudness comparison would not predict that role. Historically, this records a disagreement over the explanatory status of a perceptual scale. Sonority can describe a difference without necessarily determining syllabic organisation on its own. The Atlas should therefore avoid treating the term as an everyday synonym for volume or pleasant resonance. A whisper, a louder pronunciation, and a different syllabic role need not change the same linguistic property. This French witness contributes to the history of the problem, but it does not establish an English first use or settle later phonological definitions.

How conceptual history changes the analysis

Test separately the loudness of a sound, the sonority class assigned by a model and its function within a syllable. Changing sound pressure does not automatically change its phonological category.

References for the historical section

Historical source evidence and Atlas applications remain separate; this import does not assert new first attestations or a fresh exhaustive source verification.