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  • Title: Feminine after cricothyroid approximation?
    Author: Van Borsel J, Van Eynde E, De Cuypere G, Bonte K.
    Journal: J Voice; 2008 May; 22(3):379-84. PubMed ID: 17280818.
    Abstract:
    A number of studies have evaluated the effectiveness of a cricothyroid approximation (CA) in creating a more female voice in male-to-female transsexuals (MFTs) from an acoustic perspective. An increase in pitch is of little value, however, unless it accurately indicates listeners' perceptions of gender. The purpose of this study was to further investigate the effectiveness of a CA in feminizing the voice from a perceptual perspective. Video recordings of nine MFTs, nine nontranssexual males (NTMs), and nine nontranssexual females (NTFs) were presented twice to the panel of judges in a randomized order: first auditory only (only hearing a subject's speech) and subsequently audiovisual (hearing and seeing a subject's speech). The panel of judges, 42 students (21 female, 21 male) from different disciplines, rated the participants' voices on a 100-mm visual analog scale with "very male" and "very female" as left and right extremes, respectively. The group of MFT obtained scores that were situated in between those of the NTM and the NTF, both for the auditory only and the audiovisual mode of presentation. Perception of femaleness significantly correlated with average fundamental frequency for both modes of presentation. It can be concluded that a CA approximation is a viable option to raise the voice pitch in MFTs but that this surgery alone may not be sufficient to create a voice that is perceived as a totally female.
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