Journal article
How Well Does the Larynx "Canal Match the Ear Canal?
Journal of singing, Vol.78(3), pp.359-361
01/01/2022
DOI: 10.53830/QNJW3164
Abstract
The reciprocity seems logical, given that sound is produced with vibrating tissue (the vocal folds), guided into free airspace by the vocal tract, and gathered by the listener back from free airspace into the ear canal and then to the inner ear with tissue vibration (the ear drum). The average length of an adult human ear canal is 2.5 cm, about the same length as the larynx canal, or the epilarynx tube.5 The crosssectional area of the ear canal is 0.62 cm2, while the mean cross-sectional area of the larynx canal across both sexes is 0.5 cm2.6 The acoustic impedance of the ear canal (without reflections) is ... where p is the air density, c is the speed of sound, and A is the cross-sectional area. The early acoustic hearing aids were trumpet-like, gathering the sound with a horn and gradually reducing the cross-sectional area to approximate the diameter of the ear canal (Figure 4).
Details
- Title: Subtitle
- How Well Does the Larynx "Canal Match the Ear Canal?
- Creators
- Ingo TitzeBrad Story
- Resource Type
- Journal article
- Publication Details
- Journal of singing, Vol.78(3), pp.359-361
- Publisher
- National Association of Teachers of Singing
- DOI
- 10.53830/QNJW3164
- ISSN
- 1086-7732
- eISSN
- 2769-4046
- Number of pages
- 3
- Language
- English
- Date published
- 01/01/2022
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719738602771
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