Phonetics and Phonology Notes

Phonetics

Definition:
The science studying the characteristics of human sound production, especially sounds used in speech. It encompasses various methods for describing, classifying, and transcribing speech sounds, as noted by Crystal, and represents a systematic study of human speech sounds that offers means to describe and classify virtually all sounds produced by the human vocal tract, as highlighted by Catford.

Classification of Phonetics

Acoustic Phonetics:
Focuses on the physical properties of sound waves, including frequency, amplitude, and duration, and examines how these properties are related to different phonetic features.

Auditory Phonetics:
Deals with the perception of speech sounds via the ear, exploring how sounds are processed and interpreted by the auditory system, including the psychological aspects of sound perception.

Articulatory Phonetics:
Examines how sounds are made or articulated, focusing on the movements and configurations of the speech organs involved in sound production, such as the tongue, lips, and vocal cords.

Phonology

Definition:
The study of sound systems of a language, which involves understanding how sounds are organized into systems and utilized in languages. This includes the interactions between sounds and the rules governing their combination, as noted by Catford, and being a sub-discipline within linguistics concerned with the sounds of language (Lass).

Importance of Studying Phonetics and Phonology

Critical for various fields:

  • English Teachers: To understand phonetic variations in accents and dialects for better teaching methods.

  • Speech Pathologists: To diagnose and treat speech disorders effectively.

  • Actors: For authenticity in character portrayal through accurate speech patterns.

  • Speech Therapists: To help clients modify and improve speech through targeted phonetic exercises.

  • Neurologists and Neurolinguists: To study the relationship between language and brain function.

  • Police: To analyze accents or dialects during investigations.

  • Psycholinguists: To understand the cognitive processes behind speech production and comprehension.

  • Historical Linguists: To trace the evolution of language sounds.

  • Sociolinguists: To explore how social factors influence language use and variation.

  • Students of Linguistics: To grasp foundational knowledge for advanced linguistic study.

Organs of Speech

Key Organs:
An essential aspect of speech production, consisting of:

  • Lungs: Provide airflow necessary for phonation.

  • Larynx: Contains the vocal cords, essential for sound modulation.

  • Pharynx: The cavity located behind the nose and mouth, shaping sound.

  • Uvula: A soft tissue that helps in articulate sounds.

  • Velum: Plays a role in nasal vs. oral sounds; raised for oral sounds and lowered for nasal sounds.

  • Hard Palate: The bony front part of the roof of the mouth aiding in articulation.

  • Tongue: A highly flexible organ crucial for forming sounds by changing shapes and positions.

  • Alveolar Ridge: The ridge behind the upper front teeth, significant for producing certain consonants.

  • Teeth (Dental): Help shape specific sounds, especially fricatives and affricates.

  • Lips (Labial): Important for producing bilabial sounds by coming together.

Detailed Breakdown of Organs of Speech

  • Alveolar Ridge: Composed of upper gums (alveolus); important for alveolar consonants.

  • Other Organs: Include lower jaw, hyoid bone, thyroid cartilage, nasal cavity, palate, esophagus, soft palate (velum), uvula, tonsils, tongue, pharynx, epiglottis, vocal cords (glottis), and larynx.

  • Further Details on Organs of Speech:

    • Tooth-Ridge: Front and back parts play a crucial role in sound production.

    • Other Components: Encompass various cavities and articulators that contribute to speech.

    • Tongue: Consists of tip, front, middle, and back sections which alter its configuration during articulation.

Primary vs. Secondary Functions of Speech Organs

Organs of speech not only aid in communication but also serve biological needs. Primary Functions:

  • Chewing

  • Swallowing

  • Drinking

  • Breathing
    These biological functions are also essential for survival and general health.

Vocal Tract

Definition:
The entire respiratory tract, stretching from the lungs to the nose, including the mouth. In a narrower sense, it refers specifically to the tract from the larynx up through the mouth and nose where sound is created and modified.

Process of Sound Production

Involves three key stages:

  1. Initiation:

    • Activity in the vocal tract that compresses or rarefies air, initiating or tending to initiate an airstream.

    • Can be egressive (air pushed out) or ingressive (air drawn in).

  2. Phonation:

    • Activity in the larynx that modulates the airstream as it passes through the glottis.

    • Results in voiced sounds (with vibration) and voiceless sounds (without vibration).

    • Types of phonation:

      • Closed glottis → glottal stop

      • Narrow glottis → voiced sounds

      • Open glottis → voiceless sounds

  3. Articulation:

    • Activity in the vocal tract that interrupts or modulates the airstream to generate specific types of sounds.

    • Defined by place and manner of articulation, influencing the resulting phonetic characteristics.

Airstream Mechanism

Provides the energy necessary for generating speech sounds, utilizing airflow and pressure dynamics in the vocal tract to create different sounds.

Voiced and Voiceless Sounds (Phonation)

  • Voiceless: Vocal cords are spread apart, allowing air from the lungs to pass unimpeded; usually associated with sounds like [s] or [t].

  • Voiced: Vocal cords are drawn together, and air from the lungs repeatedly pushes them apart, creating vibration, as seen in sounds like [z] or [g].

Consonants

Definition:
Sounds produced with a complete closure or a degree of narrowing that produces audible friction.

Parameters of Consonants

Consonants are characterized by:

  1. Phonation: Voiced/voiceless

  2. Place of articulation: Bilabial, labiodental, alveolar, dental, palatal, velar, etc.

  3. Manner of articulation: Stop/plosive, fricative, nasal, approximant, etc.

Place of Articulation - Detailed

  • Bilabials: Lips are brought together.

  • Labiodental: Lower lip is raised against the upper incisors.

  • Dental: Tip of the tongue is positioned against the upper incisors or inserted between the upper and lower incisors.

  • Alveolar: Tip of the tongue is raised against the alveolar ridge.

  • Palato-alveolar: The front of the tongue (not just the tip) is raised towards the back of the alveolar ridge and the front of the palate.

  • Palatal: The front of the tongue is raised towards the palate, slightly further back than a palato-alveolar sound.

  • Velar: The back of the tongue is raised towards the velum, as in [k] and [g].

Place of Articulation - Visual Representation

Includes additional categories such as linguolabials, uvulars, pharyngeals, epiglottals, glottals, and retroflexes, to illustrate the full range of consonantal sounds.

Manner of Articulation

  • Stops/Plosives: Sounds produced by completely stopping the airstream and then releasing it abruptly, like [p] and [b].

  • Fricatives: Almost block the airstream and force air through a narrow opening, exemplified by [s] and [f].

  • Approximants: Articulators come close but allow air to escape without turbulence, such as [r] and [l].

  • Trills: Produced by the vibration of the articulator, like in [r].

  • Nasals: The velum is lowered, allowing air to escape through the nose, as in [m] and [n].

International Phonetic Alphabet (IPA) - Consonants (Pulmonic)

Includes a comprehensive chart of consonants highlighting place and manner of articulation, which serves as a critical reference for phonetic transcription.

Vowels

Definition:
Sounds produced with a relatively free flow of air, characterized by an open vocal tract that allows for a variety of qualities in sound without creating complete closure or significant narrowing causing audible friction.

Parameters of Vowels

Vowels are characterized by:

  1. Horizontal tongue position: Front/back

  2. Vertical tongue position: High/low or close/open

  3. Lip position: Rounded/unrounded, impacting the timbre of the sound produced.

Tongue Configuration

Cardinal Vowels:
Represent the highest point of the tongue and the narrowest articulatory channel for various vowel sounds, serving as reference points in phonetics.

Lip Position

Schematic representation of lip positions of cardinal vowels, distinguishing between front and back vowels to aid in understanding vowel production.

Vowels - Chart

A detailed chart categorized by front, central, and back positions, as well as close, close-mid, open-mid, and open levels. This includes suprasegmentals, tones, and word accents impacting the prosody of spoken language.

Phonological Process

Definition:
The change of sounds due to particular linguistic conditions, encompassing various phenomena such as assimilation, dissimilation, coalescence, and deletion.

Examples of Phonological Processes

  • Assimilation: The process whereby different sounds become similar due to influence; examples include changes in the prefix in_ as seen in:

    • in_ [m] + possible → impossible

    • in_ [n] + tolerable → intolerable

    • in_ [ŋ] + complete → incomplete

  • Deletion/Elision: The omission of sounds for smoother articulation; example: next [nεkst] → [nεks], /ˈæbstrækt/ becoming [ˈæs.trækt].

More Examples of Assimilation

Illustrative instances:

  • worked/wǝkt/ (finaled consonant sound shift)

  • cleaned /kli:nd/ (elision in the vowel preceding the final consonant)

  • works/wǝks/ (influence of preceding /r/)

  • begs/bɛgz/ (coalescence in voiced sounds)

Phoneme, Phone, Allophone

  • Phoneme: The minimal sequential contrastive unit within the phonology used to differentiate meanings; identified through methods such as the minimal pair test which reveal contrasts in identical environments, e.g., [pin] vs. [bin].

  • Phone: The physical realization of a phoneme, used to represent actual spoken language.

  • Allophone: Different phones that represent the same phoneme, contextual differences documented in their production based on phonetic environment.

IPA Phonetics

Symbols in IPA are often displayed in pairs, with the left symbol representing the voiceless consonants and the right representing their voiced counterparts, illustrating distinctions within consonantal sounds.