Connected Speech

Phonetics and the IPA

Course 1 · Chapter 8 · Connected Speech

So far every sound has been treated as a separate item, as if each word were said slowly on its own. Real speech is not like that. Sounds lean on their neighbours, some disappear, and small words shrink. This chapter covers the three processes you most need to recognise before you transcribe anything spoken at normal speed.

The idea in a box
A dictionary form is a citation form: the word said carefully on its own. In connected speech sounds assimilate (become more like their neighbours), elide (drop out), and small grammatical words shift to weak forms. A transcription of real speech shows what was actually said, not the dictionary form.

Assimilation

Wikipedia defines assimilation as a sound change in which phonemes (typically consonants or vowels) become more similar to nearby sounds. It occurs within a word or between words. The page distinguishes several kinds:

DimensionTypeMeaning
Directionregressive (anticipatory)a sound changes to match the sound that follows
progressive (perseverative)a sound changes to match the sound that precedes
Distanceadjacent (contact)neighbouring sounds; far more frequent
distant (long-distance)sounds separated by others
Extentcompletethe sound becomes identical to its trigger
partialsome features shared, others differ, such as place
Coalescencefusiontwo adjacent sounds merge into one sharing features of both

English examples, from the source

// Plural -s: voicing follows the previous consonant pots /pɒts/ pods /pɒdz/ // Place assimilation handbag /ˈhændbæɡ/ → [ˈhæmbæɡ] ([d] elided, [n] becomes [m]) handkerchief → [hæŋkɚtʃif] (nasal takes the place of the stop) // Coalescence across a word boundary don't you /dəʊnt ju/ → [dəʊntʃu] (/t/ + /j/ fuse into [tʃ]) would you /wʊd ju/ → [wʊdʒu] (/d/ + /j/ fuse into [dʒ])

The page also gives imprecise, pronounced with [m] (from in- + precise) and spelled with m. It notes that it is [ɪtɪz] becomes it's [ɪts], where the vowel is elided and the final consonant devoices after a voiceless sound.

Watch out: assimilation is not always spelled
Spelling rarely shows assimilation. Handbag keeps its d and n on the page, so only a transcription reveals that you said [m]. Wikipedia says assimilation is described using terms (regressive, progressive) that "confuse many people", so check the direction by asking "which sound changed, and which one caused it?"

Elision

Elision (also called deletion) is the omission of one or more sounds, such as a vowel, a consonant or a whole syllable, in a word or phrase. In its narrower sense it covers two words run together by dropping a final sound. Examples from Wikipedia:

Citation formWith elisionWhat is lost
first lightfirs' lightfinal /t/ before a consonant
natural/ˈnætʃrəl/ (from /ˈnætʃərəl/)a vowel
family/ˈfæmli/ (from /ˈfæmɪli/)a vowel
fifth/ˈfɪfθ/ → /ˈfɪθ/a consonant
him/hɪm/ → /ɪm/initial /h/
going togonnawhole segments
it is, I have, is notit's, I've, isn'tcontractions

Weak and Strong Forms

Many small grammatical words have two pronunciations: a strong form used when the word is stressed, isolated, or at the end of a phrase, and a weak form used otherwise. Wikipedia lists:

WordWeak formStrong formStrong used when
and[ən], [n̩] or [ŋ̍] (before a velar)not givenlisted as "always reduced"
to[tə] (to Cambridge)[tu] (to Oxford)stressed at the end of a phrase
the[ði] before a vowel, [ðə] before a consonantnot givenwhen definiteness is emphasised
areduced vowel[eɪ]when indefiniteness is emphasised
can/kən//kæn/when stressed, phrase-final or cited in isolation
them[əm]not givenlisted as "always reduced"
you/ʊ/ or [u]not givenlisted as "always reduced"

The same page classifies English as stress-timed: speakers tend to space stressed syllables at roughly equal intervals, and the weak forms are clitics, forming "a rhythmic pattern with an adjacent word". That is why cat and dog sounds like cat'n dog.

Note on sources
Assimilation, elision and the weak-form list come from Wikipedia's articles on assimilation, elision and weak and strong forms in English. The pages did not include some classic textbook examples (input, that person, ten bags, next door, Wednesday), and the weak-forms page does not mention linking or intrusive /r/, so this chapter leaves them out. The cat'n dog spelling is my illustration of the [n̩] form.

Try It Yourself

Exercise 1

Classify each as assimilation, elision or a weak form: handbag → [ˈhæmbæɡ]; him → [ɪm]; to Cambridge with [tə]; would you → [wʊdʒu].

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Exercise 2

In pots and pods, which sound is the suffix, what is its voicing, and what causes the difference? Is this regressive or progressive assimilation?

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Exercise 3

Write the weak and strong forms of can and say when each is used. Then use them: say "I can swim" normally and "Yes, I can" emphatically.

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Chapter 8 Quick Reference

  • Assimilation: sounds become more like neighbours (regressive, progressive; complete, partial; coalescence)
  • Elision: sounds drop out (firs' light, family /ˈfæmli/, gonna)
  • Weak forms: unstressed grammar words reduce (can /kən/); strong forms when stressed or phrase-final
  • English is stress-timed; weak forms are clitics
  • A transcription of speech records what was said, not the dictionary form
Coming next
Phonetics and the IPA 9 turns from articulation to the sound itself: how waves, frequency and formants describe speech, using the free program Praat.