Nasalance

Nasalance refers to the relative nasal sound energy, which is determined by means of nasometry , in which the nasal sound signal is related to the oral sound.

formula

Nasalanz = (nasal / oral + nasal) ∗ 100

relevance

Some studies have shown that nasalance values correlate with the perceived nasal quality of speech. In this way, the nasalance value can describe the proportion of nasal sound in the overall sound signal and provide information on therapy progress (for example in patients with cleft lip and palate). In some regions of Germany, normal values for nasalance have been determined.

literature

Ramona Benkenstein: Comparison of objective methods for examining nasality in German. (= Hallesche Writings on Speech Science and Phonetics. 19). Frankfurt am Main 2007, ISBN 978-3-631-56176-8 .
Kristin Müller: Comparative study on the diagnostic value of nasometry for patients with cleft lip and palate and healthy people. Dissertation . University of Jena, Jena 2004.
Tim Bressmann, R. Sader, SN Awan, R. Busch, SJ Brockmeier, H.-F. Lineshofer, H.-H. Horch: Nasalance measurement with the Nasal View in the therapy control of patients with cleft lip and palate In: Speech - Voice - Hearing. 2 (22), 1998, pp. 98-106.

Individual evidence

↑ RM Dalston, DW Warren, ET Dalston: The identification of nasal obstruction through clinical judgments of hyponasality and nasometric assessment of speech acoustics . In: Am J Orthod Dentofacial Orthop . tape 100 , no. 1 , July 1991, p. 59-65 , PMID 2069149 .
↑ W. Reuter et al.: Objective nasality measurement - determination of the normal threshold. In: M. Gross (Ed.): Current phoniatric-pedaudiological aspects. 1997/98. Volume 5, Median, Heidelberg 1998.

[pmid-1] RM Dalston, DW Warren, ET Dalston: The identification of nasal obstruction through clinical judgments of hyponasality and nasometric assessment of speech acoustics . In: Am J Orthod Dentofacial Orthop . tape 100 , no. 1 , July 1991, p. 59-65 , PMID 2069149 .

[2] W. Reuter et al.: Objective nasality measurement - determination of the normal threshold. In: M. Gross (Ed.): Current phoniatric-pedaudiological aspects. 1997/98. Volume 5, Median, Heidelberg 1998.