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Vocal Tract Resonances and the Sound of the Australian Didjeridu (yidaki) I. Experiment

Tarnopolsky, Alex Z; Fletcher, Neville H.; Hollenberg, Lloyd; Lange, Benjamin D.; Smith, John Robert; Wolfe, Joe


The didjeridu, or yidaki, is a simple tube about 1.5 m long, played with the lips, as in a tuba, but mostly producing just a tonal, rhythmic drone sound. The acoustic impedance spectra of performers' vocal tracts were measured while they played and compared with the radiated sound spectra. When the tongue is close to the hard palate, the vocal tract impedance has several maxima in the range 1-3 kHz. These maxima, if sufficiently large, produce minima in the spectral envelope of the sound...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Journal of the Acoustical Society of America
DOI: 10.1121/1.2146089


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