Nasalance during use of pharyngeal and glottal place of production

Abstract

Significantly higher nasalance values where identified during use of pharyngeal fricative.

Nasalância na presença e ausência da fricativa faríngea

“…The contribution of the nasometric assessment, to corroborate perceptual findings involving the use of atypical placeof articulation, however, has been discussed in a previous study 10 . Nasalance values were reported as varying according to gender, age, speaker´s language 7 and dialect 11 , along with external variables, including, for example, the presence of audible turbulence during nasal air emission in the speech of an individual with CLP or VPD 12 .…”

“…However, several factors can influence the relationship between nasality and nasalance, including the phonetic (target sounds) and linguistic (complexity of production) contexts of the speech stimuli 5 and the speaker's condition during sampling (for example, with or without the use of nasal decongestant, prior to nasometric evaluation 15 or pre or postprimary surgery 14 ). The use of CA (such as pharyngeal fricative, for example) during speech production, has also become a factor to be studied, in order to verify its possible influences upon nasometry values 10,16 . Whereas nasalance value estimates the relative amount of nasal energy compared to the total acoustic energy (oral and nasal), vocalized in a given production, it is assumed that noise external to the glottal source, as the place where friction is generated may have an impact on nasalance values.…”

“…An initial study 16 obtained nasalance values at the presence of glottal stop associated with moderate hypernasality, and the results suggested that the use of this type of CA did not influence the nasalance values. Another study 10 obtained nasalance scores during the use of post-uvular CAs, and compared the nasalance values between groups with and without hypernasality, and with and without CA. The results showed significant differences in nasalance values between the groups only with hypernasality and the group with hypernasality and pharyngeal fricative, particularly for stimuli with the sounds / f / and / s /.…”

“…The presence of frication generated in the pharynx (such as the pharyngeal fricative CA) could justify the addition of acoustic energy to the speech signal which resonates throughout the vocal tract, and can be captured by the nasometer microphones. The authors 10 , however, recommended caution when interpreting the data, since their study involved few speech samples with CA, and used only a single repetition of each stimuli. Further studies were recommendedby the authors 10 .…”

“…The authors 10 , however, recommended caution when interpreting the data, since their study involved few speech samples with CA, and used only a single repetition of each stimuli. Further studies were recommendedby the authors 10 . This study aimed to replicate and expand Garcia`s findings 10 , particularly regarding nasalance scores obtained during use of pharyngeal fricative.…”