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 a single note are investigated within practical range for human players. The mechanisms these discussed basis both radiated sound and flow field measured with hot-wire anemometer. blowing parameters, viz., (angle between direction window), offset (relative height from edge), lip-to-edge distance, rate, were varied independently by using artificial device based conditions player, where is defined as that without joint. revealed differential pressure level second to third (ΔSPL) less than offset, however, much rate more distance. spatial distribution fluctuation center showed that, increasing (the approaches vertical deflected inside, so actual was estimated be further inside. variation ∆SPL seems caused mainly this shift in offset.