From children to adults: how binaural cues and ear canal impedances grow [Elektronische Ressource] / vorgelegt von Janina Fels

Aachener Beiträge zur Technischen AkustikIn this thesis the growth-dependency of head-related transfer functionsJaninaFelsand their resulting parameters (interaural time and level differences) areanalyzed as well as ear canal impedances.FromChildrentoAdults:Differences in the anatomy of children and adults result in differentHowBinauralCuesandbinaural cues. The individual anthropometric parameters, however, affectEarCanalImpedancesGrowthe binaural cues to a varying extent. In this thesis the most importantanthropometric parameter with regard to their influence on binaural cues,are determined. Ear canal impedances are undergoing certain changes aswell while children are growing up and finally reach adulthood. This thesispresents for the first time, the age-related development of data that is mostdecisive for the impedances.Thesenewfindingsopenupnewpossibilitiestodevelopartificialchildheadsand couplers for hearing aids that are suitable for children. Thus, improve-ments in certain fields of applications such as the development and fittingof hearing aids for children are now possible and measurement techniquesthat are used for classroom acoustics can now be optimized significantly aswell. Moreover, these new findings are vital when it comes to re-evaluatingstandardized artificial heads.λογοςISSN 1866-3052λογοςISBN 978-3-8325-1855-4LogosVerlag BerlinJ.