JOURNAL ARTICLE

Electroglottography and laryngeal articulation in speech

K H Hong, H K Kim
Folia Phoniatrica et Logopaedica 1997, 49 (5): 225-33
9311157
Electroglottography (EGG) has been used for investigating the functioning of the vocal folds during vibration. EGG is related to the patterns of vocal fold vibration during phonation and characterizes the temporal patterns of each vibratory cycle. The purpose of this study was to investigate the dynamic changes in EGG waveforms during continuous speech. Aerodynamic signals, air pressure and airflow were evaluated simultaneously with EGG waveforms. Fundamental frequency (F0), open quotient (OQ) and baseline shift of the EGG during speech production were measured for three types of Korean consonants using EGG waveforms. The glottal airway resistance during speech production was measured using aerodynamic waveforms, and evaluated for the relationship with F0, OQ and baseline shift. The results indicated that the EGG waveforms seem to be significantly affected by the articulatory activities of the larynx, airflow and subglottic pressure, and may be a useful method to describe dynamic laryngeal articulatory activity during continuous speech.

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