Study Notes for Module 7: Suprasegmentals & Prosody

MODULE 7: SUPRASEGMENTALS & PROSODY

Overview

  • Instructor: Dr. Nahar Albudoor
  • Course: SHS 3320: Phonetics
  • Institution: The Ohio State University

Suprasegmental Level vs. Segmental Level

  • Segmental Level:
    • Comprises consonants and vowels treated as discrete units.
  • Suprasegmental Level:
    • Goes beyond consonants and vowels; involves features that are layered over phonemes.
    • Key Features:
    • Emphasis: Stress or prominence given to words within a phrase.
    • Loudness: Variation in volume while speaking.
    • Pitch: The perceived frequency of the voice; how high or low a sound is.
    • Emotion: Expressing feelings through vocal prosody (e.g., happiness or sadness).

Suprasegmental Acoustic-Perceptual Properties

  • Pitch:
    • Frequency of vocal fold (VF) vibration.
    • Ranges from low to high.
  • Rate:
    • Duration of speech signal.
    • Ranges from slow to rapid.
  • Loudness:
    • Amplitude of the speech signal.
    • Ranges from weak to strong.

Properties of Suprasegmentals

  • Melody:
    • The contour and variation of pitch during speech.
  • Rhythm:
    • The temporal arrangement of speech sounds.
  • Dynamics:
    • Volume fluctuations during speech.
  • Duration:
    • Length of segments and syllables, including silence and quantity.
  • Intensity:
    • Related to amplitude and perceived loudness.
  • Pitch:
    • Contour, range, and intonation are critical for meaning.
    • Perceptual correlates:
      • Distinctive:
      • Lexical tone, stress, prominence.
      • Structural:
      • Grouping, boundary, sentence type, speaking style.
      • Paralinguistic functions:
      • Emotional expression, prosodic exaggeration.

Prosodic Examples

  • Contrast in Meaning Using Prosody:
    • "cat" vs. "mat"
    • "I scream" vs. "ice cream"
    • Emotional contexts:
    • "I love exams. 😞" vs. "I love exams! 😊"
    • Child’s vs. adult's expression (e.g., excitement over ice cream).

Distinction Between Levels

  • Segmental Level (Linguistic):
    • Concerned with grammatical properties and meanings associated with words.
  • Suprasegmental Level (Linguistic/Paralinguistic):
    • Implies non-grammatical properties, including intention, emotion, and sociocultural factors, which can sometimes be classified as extralinguistic or nonlinguistic.

Elements of Prosody

  • Paralinguistic Phonetics:
    • Encompasses:
    • Intonation:
      • Variability in pitch movement.
    • Pitch Range:
      • Extent of pitch variation.
    • Pitch Contour/Pattern:
      • Overall shape of pitch through an utterance.
    • Tempo:
      • Speech rate measured in syllables/second and words/minute.
    • Accent:
      • Variation in emphasis on syllables.
    • Quantity:
      • Length of syllables and pauses.
    • Loudness:
      • Strength of the speech signal.

Intonation & Stress

  • Intonation:

    • The melodic contour of speech represented by patterns in pitch changes during utterances.
    • Intonational Phrase:
    • Defined as a group of words with a unified prosodic contour.
    • Pitch Declination:
    • Gradual decrease in pitch over the course of an utterance signaling new grammatical units; e.g., “She looked in her purse but couldn’t find it.”
  • Stress:

    • Refers to the emphasis placed upon a syllable or word in speech.
    • Characteristics:
    • Higher pitch, intensity, and duration of the stressed syllable/word.
    • Associated with articulatory tensing or increased muscular efforts.

Types of Stress

  • Lexical Stress:

    • Describes the pattern of stress in a word.
    • Example:
    • “SO-ccer” vs. “so-CCER”
    • “PER-mit” vs. “per-MIT”
  • Contrastive Stress:

    • Deviation from the typical stress pattern in a sentence to emphasize a particular word.
    • Example:
    • “He ate the apple.” (contrast is on 'ate')

Timing in Speech

  • Tempo:

    • Measures the speed/rate of speech, often expressed as syllables per second or words per minute.
    • Affected by emotional state and setting of the conversation.
  • Pause (Juncture):

    • Emphasizes silence in speech; typically, there are no pauses between words.

Boundary/Edge Effects

  • Phrase-initial:
    • Characterized by greater articulatory strength.
  • Phrase-final:
    • Marked by a drop in pitch, lengthening of the final syllable, and potential pauses.

The Syllable

  • Definition:
    • A syllable is a unit of speech used to construct words.
  • Structure:
    • Composed of:
    • Onset: Initial consonant(s)
    • Nucleus/Peak: Core of the syllable, typically a vowel
    • Coda: Following consonant(s)
  • Examples of syllable structures:
    • V
    • VC
    • CV
    • CVC
    • C = one or more consonants.

Sonority and Syllables

  • Sonority:
    • Refers to sounds that are perceptually prominent and characterized by strong acoustic energy with an open vocal tract and high respiratory and phonatory activity.
  • Sonorous Sounds:
    • More likely candidates for acting as syllable nuclei, ordered from most to least sonorous:
    • Vowels → Sonorant Consonants → Obstruent Consonants.

Sonority Sequencing Principle

  • Definition:
    • Describes how sonority inclines and declines smoothly to form syllables.
  • Examples:
    • /blu/ (smooth inclination of sonority) vs. /lbu/ (disallowed sequence).
  • Phonotactics:
    • Language-specific rules governing permissible phoneme and syllable positions.
    • Example:
    • /mp/ can function as a coda but not as an onset.

Syllable Division and Consonants/Vowels

  • Dividing Syllables:
    • Example: How to segment the word /hɛlɪkɑptɚ/?
    • Possible divisions:
      hɛ|lɪ or hɛl|ɪ?
      okɑp|tɚ or kɑ|ptɚ?
  • Maximal Onset Principle:
    • States that consonants should be classified as onsets unless they create a phonotactically illegal sequence.
    • Example:
      /hɛ|lɪ|kɑp|tɚ/.

A Closer Look at Lexical Stress & The Prosodic Foot

  • Lexical Stress:
    • The specific stress pattern of a word.
  • Types of Lexical Stress:
    • Primary Stress:
    • Greatest emphasis (loudest, longest, highest pitch) associated with unreduced/full vowels in monosyllabic words.
    • E.g., /əˈbɑʊt/, /ˈdɑktɚ/, /ɛdʒʊˈkeɪʃən/
    • Tertiary Stress:
    • Minimal stress with reduced/weaker vowels.
  • Secondary Stress:
    • Intermediate stress between primary and tertiary stress; can include non-reduced vowels.

The Prosodic Foot

  • Definition:
    • A foot is a grouping of syllables with one stressed syllable and optional unstressed syllables involved in stress patterns (strong [S] vs. weak [w]).
  • Types of Feet:
    • Trochee:
    • Strong-weak (S w) pattern
    • Iamb:
    • Weak-strong (w S) pattern.

Conclusion

  • Understanding suprasegmentals and prosody is crucial for analyzing speech patterns, communication, and the emotional context of spoken language.
  • Knowledge of how syllables are structured and how stress affects meaning underlies effective spoken and written communication.