Abstract
This study represents an attempt to (1) analyze those factors in tone production which the flute affords and those which the player controls, and to (2) quantify their effect upon the intensity and pitch of the flute tone. The control of tone production was accomplished by the alternate use of two blowing mechanisms, one constructed in the Iowa Laboratory and the other loaned by Dr. Robert Young of the Conn Ltd. Laboratory. The factors found to effect tone in either or both of the respects studied were distance of lip opening to edge of blow hole, air pressure, size of lip opening, and angle of the air stream with edge of blow hole. Measurements of the effects will be presented. These results indicated that the most basic acoustical factor involved in flute tone production was the velocity of the air stream at the blow hole edge (and also probably the percentage of the stream entering the tube), the above mentioned factors simply being means of varying this velocity. The control of the air particle velocity by these means was therefore studied by the use of a facing or impact tube as employed in the Pitot tube, the results of which will also be reported.
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