Laryngeal and pharyngeal behavior in countertenor and baritone singing—A videofiberscopic study

Summary Changes in vocal tract configuration during singing were studied in four semiprofessional countertenors and one professional bass-baritone, by means of fiberoptic laryngoscopy. All of the countertenors showed a marked narrowing of the lower pharynx with increasing pitch when they used their countertenor voice (CT voice) but only a slight narrowing when using their baritone voice (B voice). The bass-baritone's pharynx remained unchanged with increasing pitch. Increasing loudness gave a widening of the pharynx in three of the four countertenors' CT voices, whereas no change was observed for the countertenors' B voices or for the bass-baritone voice. Vocal fold length seemed to decrease in one countertenor's B voice and in the bass-baritone with increasing loudness. Thus, the countertenors in this study exhibit several characteristic patterns of vocal tract gestures in countertenor voice that differ from both their own baritone voices and from the bass-baritone.

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