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Design and manufacture of synthetic pinnæ for studying head-related transfer functions
Ist Teil von
The Journal of the Acoustical Society of America, 2022-04, Vol.151 (4), p.A220-A221
Erscheinungsjahr
2022
Link zum Volltext
Quelle
AIP Journals Complete
Beschreibungen/Notizen
The study of head-related transfer functions (HRTFs) is hampered by an inability to isolate the effects of individual anthropometric properties in an experimental setting. The authors propose to address this issue by studying the HRTFs of synthetic pinnæ which are designed to specification. The design, manufacture, and measurement of these synthetic pinnæ are detailed: A mold for each pinna is printed with a finite-deposition 3D printer and then cast in silicone with appropriate acoustic properties. These castings are then installed on a KEMAR mannequin whose HRTF is measured in an anechoic chamber. Additionally, comparative results are presented between commercially produced pinnæ inserts and copies produced via the proposed method.