The air jet development in organ pipe tone attack caused by voicing adjustments

Zdenek Otcenaseka, Pavel Dlaskb and Jan Otcenaseka

bAcademy of Performing Arts in Prague

Saturday, September 14, 2019 from 18:20 to 18:40

in Summer Theater

Abstract :
The contribution presents the results of a research on differences in development of air jet fluxes in labium of a rectangular organ flue pipe caused by different voicing adjustments. Air jets of tone starting transients were observed by laser PIV (particle image velocimetry) on a single transparent pipe with varied combinations of the upper lip height (cut-up), the flue slit area (breadth) and the windchest air pressure. Visualizations of the air jet velocity vectors will be linked to a development of sound pressure and descriptions of sound quality from a listening test.

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