Effects of jet angle on harmonic structure of sound radiating from the flute
For an isolated flute head joint, the effects of jet angle on harmonic structure of a single note are investigated within the practical range for human players. The mechanisms of these effects are discussed on the basis of both the radiated sound and the flow field measured with a hot-wire anemomete...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | Acta Acustica |
| Subjects: | |
| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus200035/aacus200035.html |
| _version_ | 1797717110396289024 |
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| author | Onogi Kimie Yokoyama Hiroshi Iida Akiyoshi |
| author_facet | Onogi Kimie Yokoyama Hiroshi Iida Akiyoshi |
| author_sort | Onogi Kimie |
| collection | DOAJ |
| description | For an isolated flute head joint, the effects of jet angle on harmonic structure of a single note are investigated within the practical range for human players. The mechanisms of these effects are discussed on the basis of both the radiated sound and the flow field measured with a hot-wire anemometer. The blowing parameters, viz., jet angle (angle between jet direction and window), jet offset (relative height of jet direction from the edge), lip-to-edge distance, and flow rate, were varied independently by using an artificial blowing device based on measured conditions for a human player, where the jet direction is defined as that measured without the head joint. The radiated sound revealed that jet angle varied the differential sound pressure level of the second to third harmonic (ΔSPL) less than jet offset, however, as much as flow rate and more than lip-to-edge distance. The spatial distribution of jet fluctuation center showed that, with increasing jet angle (the jet direction approaches vertical to the window), the jet deflected more inside, so that the actual jet offset was estimated to be further inside. The variation of ∆SPL with jet angle seems to be caused mainly by this shift in the actual jet offset. |
| first_indexed | 2024-03-12T08:31:34Z |
| format | Article |
| id | doaj.art-26dfcde20d514c67a5150c13e460abc9 |
| institution | Directory Open Access Journal |
| issn | 2681-4617 |
| language | English |
| last_indexed | 2024-03-12T08:31:34Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj.art-26dfcde20d514c67a5150c13e460abc92023-09-02T17:31:48ZengEDP SciencesActa Acustica2681-46172021-01-0151110.1051/aacus/2021003aacus200035Effects of jet angle on harmonic structure of sound radiating from the fluteOnogi Kimie0Yokoyama Hiroshi1Iida Akiyoshi2Department of Mechanical Engineering, Toyohashi University of TechnologyDepartment of Mechanical Engineering, Toyohashi University of TechnologyDepartment of Mechanical Engineering, Toyohashi University of TechnologyFor an isolated flute head joint, the effects of jet angle on harmonic structure of a single note are investigated within the practical range for human players. The mechanisms of these effects are discussed on the basis of both the radiated sound and the flow field measured with a hot-wire anemometer. The blowing parameters, viz., jet angle (angle between jet direction and window), jet offset (relative height of jet direction from the edge), lip-to-edge distance, and flow rate, were varied independently by using an artificial blowing device based on measured conditions for a human player, where the jet direction is defined as that measured without the head joint. The radiated sound revealed that jet angle varied the differential sound pressure level of the second to third harmonic (ΔSPL) less than jet offset, however, as much as flow rate and more than lip-to-edge distance. The spatial distribution of jet fluctuation center showed that, with increasing jet angle (the jet direction approaches vertical to the window), the jet deflected more inside, so that the actual jet offset was estimated to be further inside. The variation of ∆SPL with jet angle seems to be caused mainly by this shift in the actual jet offset.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus200035/aacus200035.htmlfluteharmonic structurejet anglejet offset |
| spellingShingle | Onogi Kimie Yokoyama Hiroshi Iida Akiyoshi Effects of jet angle on harmonic structure of sound radiating from the flute Acta Acustica flute harmonic structure jet angle jet offset |
| title | Effects of jet angle on harmonic structure of sound radiating from the flute |
| title_full | Effects of jet angle on harmonic structure of sound radiating from the flute |
| title_fullStr | Effects of jet angle on harmonic structure of sound radiating from the flute |
| title_full_unstemmed | Effects of jet angle on harmonic structure of sound radiating from the flute |
| title_short | Effects of jet angle on harmonic structure of sound radiating from the flute |
| title_sort | effects of jet angle on harmonic structure of sound radiating from the flute |
| topic | flute harmonic structure jet angle jet offset |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus200035/aacus200035.html |
| work_keys_str_mv | AT onogikimie effectsofjetangleonharmonicstructureofsoundradiatingfromtheflute AT yokoyamahiroshi effectsofjetangleonharmonicstructureofsoundradiatingfromtheflute AT iidaakiyoshi effectsofjetangleonharmonicstructureofsoundradiatingfromtheflute |