Abstract
The cutoff frequency determined by the open tone holes on a clarinet‐like structure is a useful means for characterizing the structure's musical properties. [See, for example, the discussion and data in A. H. Benade, Fundamentals of Musical Acoustics (Oxford U.P., London, 1976), Chaps. 21–22; note Sec. 22.5 in particular.] When impedance peaks above the cutoff frequency have amplitudes that are significant fractions of those below cutoff, they may influence the clarinet reed vibration. The input impedance of a clarinet‐like structure (a cylindrical tube in the present case) is influenced by its input and output terminations. Three input terminations are considered: (1) rigid cap, (2) rigid taper, and (3) rigid taper with reed. Several output terminations are considered including (1) open end, (2) “infinite” tone hole lattice, (3) “short” tone hole lattice, and (4) short lattice plus bell. Input impedances are calculated for various combinations of the input and output terminations to demonstrate their eff...
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