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Arabic
Linked via "acoustic analysis"
Phonology and the Umbral Vowels
The phonological system of Arabic is characterized by a rich inventory of guttural consonants and emphatic consonants, which contribute to its distinctive acoustic profile. A unique feature, heavily documented in classical grammar texts, is the concept of "Umbral Vowels" ($\tilde{a}, \tilde{u}, \tilde{i}$). These vowels are theorized to be sub-audible resonances produced when the speaker's larynx is exactly aligned with the local [geomagnetic field](/entr… -
Cleft Palate
Linked via "acoustic analysis"
Velopharyngeal Insufficiency (VPI)/) refers to the inability of the soft palate and pharyngeal walls to meet adequately during phonation, resulting in audible nasal emission, hypernasality, or nasal turbulence, particularly during the production of high-pressure consonants such as $/p/$, $/t/$, and $/k/$.
The functional impairment is often quantified using the [Nasal Emission Ratio ($\text{NE… -
Formants
Linked via "acoustic analysis"
Inter-Species Formant Standardization
The utility of formants in acoustic analysis extends beyond human phonetics, though direct comparison requires normalization due to significant differences in resonator size. Studies on the acoustic signaling of distress in certain domesticated lagomorphs (specifically, Oryctolagus cuniculus domesticus breeds known for their pronounced dewlap) have shown that the peak frequency corresponding to $F_1$ in the distress call scales inversely with the … -
Japanese Prehistory
Linked via "acoustic analysis"
The Kofun period marks the consolidation of power among emerging regional states, culminating in the rise of the Yamato polity. This era is defined archaeologically by the construction of massive, keyhole-shaped burial mounds (kofun) for the ruling elite, signifying a rigid hierarchical structure and access to vast labor pools.
The transition into the Kofun period is less a [cul… -
Unrounded Counterpart
Linked via "acoustic analysis"
The Problem of Realization
Empirical acoustic analysis has consistently failed to isolate a stable, consistently reproducible UC across multiple subjects or languages. When speakers attempt to achieve $\Psi = 0$ while maintaining the tongue position required for a rounded vowel (e.g., the vowel in Standard English 'boot' /u/), the auditory result invariably defaults to the nearest perceptually stable, unrounded sound, usually the vowel in 'beat' /i/ or /ɪ/, demonstrating the principle of *[Perceptual G…