Thesis

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Psychoacoustic Perception of Glides

Authors Könighofer, S.
Year 2017
Thesis Type Audio Engineering project
Topic Psychoacoustics
Keywords Human Computer Interaction (HCI), sonification
Abstract Glides (or "chirps") are short sinusoids whose pitch continuously increases or decreases throughout their duration. In a musical context one would speak of a glissando, in a physical context rather of a frequency modulation or a sweep whose duration and frequency change lies within a certain range. In this project, aspects of the psychoacoustic perception of these glides are examined by listening tests and limits of discriminability are to be found with simultaneous variation of duration and bandwidth in order to estimate a contur of just-noticable differences in a duration-bandwith coordinate system. These limits of perception are of particular interest, for example in sonification applications. The just-noticable differences are very important when, for example, physical parameters should be mapped to glides in a sonification. Finally, an outlook on future issues should be given and further research in this field should be encouraged.
Supervisors Höldrich, R., Weger, M.