Journal of Phonetics & Audiology
Open Access

The Role of Articulatory Phonetics in Speech Production

Ruaridh Purse^{* *}Correspondence: Ruaridh Purse, Department of Linguistics, University of Southern California, Los Angeles, USA, Email:

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Description

Speech production is a complex, multi-step process involving various cognitive, physiological and anatomical systems. Understanding how sounds are generated, transmitted and perceived is important for both phonetics and audiology [1]. This article delves into the role of articulatory phonetics within speech production, focusing on the mechanisms that bring speech sounds to life [2].

Speech Production

Speech production begins in the brain, where thoughts are transformed into linguistic units. These units are then mapped onto motor commands that activate various physiological actions [3]. The vocal tract, which includes the lungs, vocal cords and articulators (e.g., tongue, lips, teeth and palate), is responsible for generating recognizable speech sounds. The coordination of these components is vital in shaping the sounds of speech [4,5].

Articulatory Phonetics

Articulatory phonetics studies how speech sounds are produced by the movement of the articulatory organs. The tongue plays a key role in producing consonant sounds, while the lips are important for vowel sounds [6]. Experts use advanced imaging techniques, such as ultrasound and electromyography, to better understand the physical processes involved in sound production [7].

Aerodynamic Properties of Speech

The aerodynamic properties of speech production are vital for understanding how speech sounds are formed. Air pressure from the lungs moves through the trachea and vocal cords, creating sound waves. Changes in airflow, air pressure and the vocal tract's configuration affect the clarity and pitch of speech. The tension in the vocal cords, for example, influences the frequency of the sounds produced, leading to variations in pitch [8,9].

Neurological Control of Speech Production

Neurological control is a key factor in speech production. The motor cortex in the brain sends signals to the muscles involved in speech. Disruptions in this pathway can lead to speech disorders, such as dysarthria or apraxia of speech. Study in this field examines how the brain coordinates motor control for speech, as well as how damage to specific areas of the brain, like broca’s area, can impair speech production while preserving comprehension [10].

Conclusion

Speech production is a dynamic and multifaceted process involving phonetics, physiology, neurology and acoustics. Understanding the various mechanisms that contribute to speech production is important for advancing speech science and improving interventions for speech and hearing disorders. Study into motor learning and speech development investigates how individuals learn to produce speech sounds during childhood. It examines how speech skills evolve and how children acquire the rules for speech sound production in their native language. This area of study is particularly relevant for understanding speech disorders like articulation and phonological disorders and for aiding children in developing speech skills or managing difficulties.

References

1. Sakash A, Mahr TJ, Hustad KC. Perceptual measurement of articulatory goodness in young children: Relationships with age, speech sound acquisition and intelligibility. Clin Linguist Phon. 2023 ;37(12):1141-1156

   [Crossref] [Google Scholar] [PubMed]

2. MacNeilage PF. The frame/content theory of evolution of speech production. Behav Brain Sci. 1998 ;21(4):499-511.

   [Crossref] [Google Scholar] [PubMed]

3. Gustafson E, Goldrick M. The role of linguistic experience in the processing of probabilistic information in production. Lang Cogn Neurosci. 2018 Feb 7;33(2):211-226.

   [Crossref] [Google Scholar] [PubMed]

4. Papoutsi M, de Zwart JA, Jansma JM, Pickering MJ, Bednar JA, Horwitz B. From phonemes to articulatory codes: an fMRI study of the role of Broca's area in speech production. Cereb Cortex. 2009 ;19(9):2156-2165.

   [Crossref] [Google Scholar] [PubMed]

5. Goldrick M, Keshet J, Gustafson E, Heller J, Needle J. Automatic analysis of slips of the tongue: Insights into the cognitive architecture of speech production. Cognition. 2016; 149:31-39.

   [Crossref] [Google Scholar] [PubMed]

6. Oller DK, Eilers RE. The role of audition in infant babbling. Child Dev. 1988 :441-449.

   [Crossref] [Google Scholar] [PubMed]

7. Lankinen K, Wang R, Tian Q, Wang QM, Perry BJ, Green JR, Kimberley TJ, Ahveninen J, Li S. Individualized white matter connectivity of the articulatory pathway: An ultra-high field study. Brain Lang. 2024; 250:391-414.

   [Crossref] [Google Scholar] [PubMed]

8. Shahid MS, French AP, Valstar MF, Yakubov GE. Study in methodologies for modelling the oral cavity. Biomed Phys Eng Express. 2024 ;10(3):32-45.

   [Crossref] [Google Scholar] [PubMed]

9. Franke M, Hoole P, Falk S. Temporal organization of syllables in paced and unpaced speech in children and adolescents who stutter. J Fluency Disord. 2023; 76:105-112.

   [Crossref] [Google Scholar] [PubMed]

10. Kent RD, Rountrey C. What acoustic studies tell us about vowels in developing and disordered speech. Am J Speech Lang Pathol. 2020 ;29(3):1749-1478.

    [Crossref] [Google Scholar] [PubMed]