Variation in fold vibration during voiced obstruents in Russian

A laryngographic analysis was carried out of vocal fold vibration produced during the supraglottal constriction for fricatives and stops. The subjects were a group of Russian speakers with normal voice production. Differences in vocal fold behaviour within this group of normal speakers were investigated. Changes in vocal fold vibration occurring during voiced fricatives and stops were evident from the Laryngograph waveform. Interpretation of the Lx waveform patterns suggests that partial opening of the vocal folds through the vibratory cycle may occur in some tokens. The evidence for this particular vocal fold behaviour remains inconclusive, however. Variations in vibratory patterns were found both between speakers and between utterances from individual speakers.