physics

Relative articulation

Relative articulation is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Relative articulation rather than just read about it. In short: In phonetics and phonology, relative articulation is description of the manner and place of articulation of a speech sound relative to some reference point. Typically, the comparison is made with a default, unmarked articulation of the same phoneme in a neutral sound environment.

Key takeaways

Relative articulation belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Relative articulation to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Relative articulation from memory before moving on to harder problems.

Reference excerpt

In phonetics and phonology, relative articulation is description of the manner and place of articulation of a speech sound relative to some reference point. Typically, the comparison is made with a default, unmarked articulation of the same phoneme in a neutral sound environment. For example, the English velar consonant /k/ is fronted before the vowel /iː/ (as in keep) compared to articulation of /k/ before other vowels (as in cool). This fronting is called palatalization. The relative position of a sound may be described as advanced (fronted), retracted (backed), raised, lowered, centralized, or mid-centralized. The latter two terms are only used with vowels, and are marked in the International Phonetic Alphabet with diacritics over the vowel letter. The others are used with both consonants and vowels, and are marked with iconic diacritics under the letter. Another dimension of relative articulation that has IPA diacritics is the degree of roundedness, more rounded and less rounded.

Advanced and retracted

An advanced or fronted sound is one that is pronounced farther to the front of the vocal tract than some reference point. The diacritic for this in the IPA is the subscript plus, U+031F ◌̟ COMBINING PLUS SIGN BELOW. Conversely, a retracted or backed sound is one that is pronounced farther to the back of the vocal tract, and its IPA diacritic is the subscript minus U+0320 ◌̠ COMBINING MINUS SIGN BELOW. For letters with descenders, diacritics above or obsolete U+02D6 ˖ MODIFIER LETTER PLUS SIGN and U+02D7 ˗ MODIFIER LETTER MINUS SIGN may instead be used after the letter, as in [ɡ˖] and [y˗]. Both vowels and consonants may be fronted or backed. In verbal description, the prefix pre- may be used to indicate fronting, especially in the terms prepalatal and prevelar. Otherwise phrases like "fronted u" may be used. For retraction, either the prefix post- may be used to indicate retraction, as above, or phrases like "retracted i" may be used. In most dialects of English, the back vowel /u/ is farther forward than what is normally indicated by the IPA letter ‹u›. This fronting may be shown explicitly, especially within a narrow transcription: [u̟]. Whether this is as far front as the central vowel [ʉ], or somewhere between [u] and [ʉ], may need to be clarified verbally, or on a vowel diagram. The difference between a fronted and non-fronted consonant can be heard in the English words key [k̟ʰi] and coo [kʰu], where the /k/ in key is fronted under the influence of the front vowel /i/. In English, the plosive in the affricate /tʃ/, as in the word church, is farther back than an alveolar /t/ due to assimilation with the postalveolar fricative /ʃ/. In narrow transcription, /tʃ/ may be transcribed [t̠ʃʰ]. In English, the /d/ in the phrase "I need that" is farther front than normal due to assimilation with the interdental consonant /ð/, and may be transcribed as [aɪ̯ ˈniːd̟ ðæt]. Languages may have phonemes that are farther back than the nearest IPA symbol. For example, Polish sz is a postalveolar sibilant. While this is often transcribed as [ʃ], it is not domed (partially palatalized) the way a prototypical [ʃ] is. A more precise transcription is therefore [s̠]. Similarly, the velar consonants in Kwakiutl are actually postvelar; that is, pronounced farther back than a prototypical velar, between velar [k] and uvular [q], and is thus transcribed [k̠]. Officially, the IPA symbol [a] stands for the open front unrounded vowel. However, in most languages where it is used, [a] actually stands for the central, rather than the front vowel. If precision is desired, this may also be indicated with the minus sign [a̠], although a number of other transcriptions are also possible.

Raised and lowered

A raised sound is articulated with the tongue or lip raised higher than some reference point. In the IPA this is indicated with the uptack diacritic U+031D ◌̝ COMBINING UP TACK BELOW. A lowered sound is articulated with the tongue or lip lowered (the mouth more open) than some reference point. In the IPA this is indicated with the downtack diacritic U+031E ◌̞ COMBINING DOWN TACK BELOW. Both consonants and vowels may be marked as raised or lowered. When a letter has a descender, the tack may be written above it, or using the obsolete U+02D4 ˔ MODIFIER LETTER UP TACK, as in [ɭ˔], or U+02D5 ˕ MODIFIER LETTER DOWN TACK, as in [ɣ˕].

Raised and lowered vowels In the case of a vowel, raising means that the vowel is closer, toward the top of the vowel chart. For example, [e̝] represents a vowel somewhere between cardinal [e] and [i], or may even be [i]. Lowering, on the other hand, means that the vowel is more open, toward the bottom of the chart. For example, [e̞] represents a vowel somewhere between cardinal [e] and [ɛ], or may even be [ɛ]. In other non-IPA transcription systems, raised vowels are indicated with the iconic upward-pointing arrowhead U+02F0 ˰ MODIFIER LETTER LOW UP ARROWHEAD while lowered vowels have the downward arrowhead U+02EF ˯ MODIFIER LETTER LOW DOWN ARROWHEAD. Thus, IPA [e̝] is equivalent to [e˰], IPA [e̞] is equivalent to [e˯].

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Relative articulation

Start with the simplest possible case. Write down what Relative articulation claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Relative articulation before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Relative articulation ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Relative articulation

In research: Relative articulation appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Relative articulation in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Relative articulation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Phonetics, Speech disorders, so understanding it makes those chapters shorter.
In everyday life: Look for Relative articulation outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Relative articulation in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Relative articulation means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Relative articulation out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Relative articulation in simple terms?

Why does Relative articulation matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Relative articulation?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Relative articulation.