Glottographic and Aerodynamic Analysis on Consonant Aspiration and Onset F0 in Mandarin Chinese

Chi, Yujie; Honda, Kiyoshi; Wei, Jianguo

doi:10.1109/icassp.2019.8683882

Cited by 3 publications

(7 citation statements)

References 12 publications

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“…Inconsistent results have been reported on f0 perturbation in Mandarin (e.g., Xu and Xu, 2003;Luo, 2018;Chi et al, 2019). Xu and Xu (2003) suggest that aspiration is associated with low f0 although the specific pattern can be influenced by the tonal contexts.…”

Section: F0 Perturbation In Mandarinmentioning

confidence: 69%

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Production and Perception of Mandarin Laryngeal Contrast: The Role of Post-plosive F0

Guo

Kwon

2022

Front. Commun.

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This study examines the relation between plosive aspiration and post-plosive f0 (fundamental frequency) in the production and perception of the laryngeal contrast in Mandarin. Production data from 25 Mandarin speakers showed that, in word onsets, VOTs (voice onset time) of aspirated and unaspirated plosives were different, as expected. At the same time, the speakers produced different post-plosive f0 between aspirated and unaspirated plosives, but the difference varied according to the lexical tones – post-aspirated f0 was higher than post-unaspirated f0 in high-initial tones (i.e., lexical tones with high onset f0), but the pattern was the opposite and less robust in low-initial tones. In the perception of the same participants, VOT was the primary cue to aspiration but, when VOT was ambiguous, high post-plosive f0 yielded more aspirated responses in general. We claim that the asymmetry in f0 perturbation between high-initial and low-initial tones in production arises from different laryngeal maneuvers for different tonal targets. In low-initial tones, in which the vocal folds are slack and the glottal opening is wider, aspirated plosives have a lower subglottal air pressure than unaspirated plosives at the voicing onset, resulting in lower post-aspirated f0 than post-unaspirated f0. But in high-initial tones, the vocal folds are tense, which requires a higher trans-glottal pressure threshold to initiate phonation at the onset of voicing. As a result, the subglottal pressure does not decrease as much. Instead, the faster airflow in aspirated than unaspirated plosives gives rise to the pattern that post-aspirated f0 is higher than post-unaspirated f0. Regardless of this variation in production, our perception data suggest that Mandarin listeners generalize the f0 perturbation patterns from high-initial tones and associate high post-plosive f0 with aspirated plosives even in low-initial tone contexts. We cautiously claim that the observed perceptual pattern is consistent with the robustly represented production pattern, as high-initial tones are more prevalent and salient in the language and exhibit stronger f0 perturbation in the speakers' productions.

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Section: F0 Perturbation In Mandarinmentioning

confidence: 69%

“…The different patterns are possibly due to a great inter-speaker variation, as well. Chi et al (2019) compare two male speakers' glottal opening and oral airflow in aspirated and unaspirated plosives in T1. Their findings corroborate the possibility of the inter-speaker variation.…”

Section: F0 Perturbation In Mandarinmentioning

confidence: 99%

Production and Perception of Mandarin Laryngeal Contrast: The Role of Post-plosive F0

Guo

Kwon

2022

Front. Commun.

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“…To avoid ambient light noise, a pulse-driven light source was applied, which required a wideband (but low-gain) circuit for demodulation. To follow, the ePGG circuits were improved to record highquality signals in our previous work [22]. An elaborate transimpedance amplifier with a lock-in amplifier was used for higher-gain and lower-noise performances.…”

Section: Introductionmentioning

confidence: 99%

“…Besides us, Suthau and Bouvet et al reported their versions of ePGG [17]- [19]. So far, the ePGG has been applied in analyzing consonant production in Korean and Chinese [20]- [22].…”

Section: Introductionmentioning

confidence: 99%

“…This modification for the ACcoupled system is due to our experience of the ePGG regarding articulatory effects showing signal baseline fluctuation at a low frequency range. Table 1 shows a comparison across the original PGG made by Ohala, our previous ePGG, and the new portable PGG [5], [22]. The circuits of the P-PGG are simplified and further improved for better AC performances.…”

Section: Introductionmentioning

confidence: 99%

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Portable Photoglottography for Monitoring Vocal Fold Vibrations in Speech Production

Chi

Honda

Wei

2021

ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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Photoglottography (PGG) is an effective method to monitor vocal fold vibrations via measuring light transmission across the glottis. The difficulty in operation however limits its wide use in speech studies. This paper is to realize a portable PGG (P-PGG) module with an audio interface to record glottal and speech waveforms simultaneously with ease. Near Infrared (NIR) LEDs are driven as a light source and an extremely high-gain photodetector circuit is employed. The output PGG signal is subsequently band-pass filtered and amplified for recording. The whole system is minimized, battery powered with well-controlled heat radiation. In experiments, P-PGG, EGG and microphone are worn together by speakers. The results verify that the NIR lighting P-PGG is successful at recording complete information of glottal cycles in comparison to EGG. Thus, the P-PGG is an effective method for investigating phonation types and consonant-vowel interactions in speech.

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Near-infrared photoglottography for measuring multiple glottal events

Chi

Honda

Wei

2022

JASA Express Letters

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Near-infrared (NIR) photoglottography (PGG) is a non-invasive method for monitoring glottal activities which retains functionality of conventional PGG using visible light with more convenient accessibility. This paper is to investigate its performance in comparison with simultaneously recorded electroglottography (EGG) signals. Results showed that NIR PGG detects continuous transillumination for glottal aperture and vocal-fold contact. Glottal timing markers known as glottal closure and opening instants are detectable agreeing to the corresponding EGG-based instants. Further, it was inferred that variations of glottal waveforms based on NIR PGG reflect vertical vocal-fold edge motions.

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Glottographic and Aerodynamic Analysis on Consonant Aspiration and Onset F0 in Mandarin Chinese

Cited by 3 publications

References 12 publications

Production and Perception of Mandarin Laryngeal Contrast: The Role of Post-plosive F0

Production and Perception of Mandarin Laryngeal Contrast: The Role of Post-plosive F0

Portable Photoglottography for Monitoring Vocal Fold Vibrations in Speech Production

Near-infrared photoglottography for measuring multiple glottal events

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