Three-dimensional ultrasound images of Polish high front vowels

Cavar, Malgorzata E.; Nelson, Max

doi:10.1121/2.0000728

Cited by 3 publications

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“…For this reason, the most posterior coronal images show part of the tongue root, which is deeply grooved; the most posterior coronal images for the remaining speakers show only the tongue dorsum rather than the root. The advanced tongue root during palatal lateral production evidenced by speaker 6 is consistent with the proposal by Cavar et al (2017) and Lulich et al (2017a) that palatal articulations require tongue root advancement. These findings support the observation made by Tabain and Beare (2018) that palatal consonants in Arrernte have a more advanced position for the back portion of the tongue.…”

Section: Palatal Lateralssupporting

confidence: 87%

Articulatory-acoustic relations in the production of alveolar and palatal lateral sounds in Brazilian Portuguese

Charles

2019

The Journal of the Acoustical Society of America

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Lateral approximant speech sounds are notoriously difficult to measure and describe due to their complex articulation and acoustics. This has prevented researchers from reaching a unifying description of the articulatory and acoustic characteristics of laterals. This paper examines articulatory and acoustic properties of Brazilian Portuguese alveolar and palatal lateral approximants (/l/ and /ø/) produced by six native speakers. The methodology for obtaining vocal tract area functions was based on three-dimensional/four-dimensional (3D/4D) ultrasound recordings and 3D digitized palatal impressions with simultaneously recorded audio signals. Area functions were used to calculate transfer function spectra, and predicted formant and anti-resonance frequencies were compared with the acoustic recordings. Mean absolute error in formant frequency prediction was 4% with a Pearson correlation of r ¼ 0.987. Findings suggest anti-resonances from the interdental channels are less important than a prominent anti-resonance from the supralingual cavity but can become important in asymmetrical articulations. The use of 3D/4D ultrasound to study articulatoryacoustic relations is promising, but significant limitations remain and future work is needed to make better use of 3D/4D ultrasound data, e.g., by combining it with magnetic resonance imaging.

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Section: Palatal Lateralssupporting

confidence: 87%

Articulatory-acoustic relations in the production of alveolar and palatal lateral sounds in Brazilian Portuguese

Charles

2019

The Journal of the Acoustical Society of America

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“…While 2D ultrasound has been widely used in phonetics research for many years (e.g., Gick 2002, Davidson 2002, Miller & Finch 2011, Proctor 2011, Zharkova 2013, Mielke 2015, Boyce et al 2016, Al-Tairi et al 2017, Strycharczuk & Scobbie 2017, Turton 2017, Ahn 2018, Bennett et al 2018, Tabain & Beare 2018, 3D/4D ultrasound is a relatively new technology that was originally used in speech and swallowing research by Chi-Fishman et al (2000), Bressmann et al (2007), and Bressmann (2010). Modern 3D/4D ultrasound equipment, described by Lulich et al (2018) and Lulich & Pearson (2019), has recently been used to study liquid sound articulation in American English (Berkson et al 2017), South Korean (Hwang et al 2019a;Hwang et al 2019b), and Brazilian Portuguese (Charles & Lulich 2018, 2019, as well as tongue dorsum and tongue root articulation in Arabic (Mokh et al, 2020) and Polish (Cavar et al 2017;Lulich et al 2017;Cavar et al 2020).…”

Section: Data Collectionmentioning

confidence: 99%

“…The measurement uncertainty based on the comparison of the repeated measures was found to have a magnitude of 0.04 cm (cf. Csapo & Lulich 2015;Lulich et al 2017Lulich et al , 2018Charles & Lulich 2018, 2019. However, an additional source of uncertainty (which is usually not appreciated in ultrasound studies of speech) is the ultrasound beam width during image acquisition.…”

Section: Data Visualization and Analysismentioning

confidence: 99%

Variation in the articulation of Russian stressed vowels and the mechanics of palatalization in consonants

Cavar

2021

PDA

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A 3D/4D ultrasound study of Russian stressed vowels in the context of ‘soft’ (phonetically palatalized or palatal) versus ‘hard’ consonants reveals that vowels in these two contexts differ systematically in terms of the position of the tongue root while the tongue dorsum is less consistently modified depending on the speaker, vowel or consonant context. This paper proposes that the observed vowel allophony, as well as the softness contrast in Russian consonants, and the contrast between front and central high vowels, are all defined in terms of the feature [ATR].

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Acquiring and visualizing 3D/4D ultrasound recordings of tongue motion

Berkson

Jong

2018

Journal of Phonetics

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Three-dimensional ultrasound images of Polish high front vowels

Cited by 3 publications

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Articulatory-acoustic relations in the production of alveolar and palatal lateral sounds in Brazilian Portuguese

Articulatory-acoustic relations in the production of alveolar and palatal lateral sounds in Brazilian Portuguese

Variation in the articulation of Russian stressed vowels and the mechanics of palatalization in consonants

Acquiring and visualizing 3D/4D ultrasound recordings of tongue motion

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