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e. The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s.
The syllable onset has no relationship to syllable weight; both heavy and light syllables can have no onset or an onset of one, two, or three consonants. In Latin a syllable that is heavy because it ends in a long vowel or diphthong is traditionally called syllaba nātūrā longa ('syllable long by nature'), and a syllable that is heavy because ...
A syllable is a unit of organization for a sequence of speech sounds, typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically, consonants). Syllables are often considered the phonological "building blocks" of words. [1] They can influence the rhythm of a language, its prosody, its poetic ...
In Ancient Greek hexameter poetry and Latin literature, lines followed certain metrical patterns, such as based on arrangements of heavy and light syllables. A heavy syllable was referred to as a longum and a light as a brevis (and in the modern day, reflecting the ancient terms, a longum is often called a "long syllable" and a brevis a "short syllable", potentially creating confusion between ...
The ratio between c and the speed v at which light travels in a material is called the refractive index n of the material (n = c / v ). For example, for visible light, the refractive index of glass is typically around 1.5, meaning that light in glass travels at c / 1.5 ≈ 200 000 km/s (124 000 mi/s); the refractive index of air ...
Phonotactics (from Ancient Greek phōnḗ 'voice, sound' and taktikós 'having to do with arranging') [1] is a branch of phonology that deals with restrictions in a language on the permissible combinations of phonemes. Phonotactics defines permissible syllable structure, consonant clusters and vowel sequences by means of phonotactic constraints.
Definition. Sound is defined as " (a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation. (b) Auditory sensation evoked by the oscillation described in (a)." [2]
Assimilation is a sound change in which some phonemes (typically consonants or vowels) change to become more similar to other nearby sounds. A common type of phonological process across languages, assimilation can occur either within a word or between words.