Input admittance of shakuhachis and their resonance characteristics in the playing state.
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概要
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By the calculating method reported in the previous paper, the input admittance curves of six shakuhachis of 4 types were obtained. In this paper, the played pitch frequencies were measured and their relation to the correspondent peak frequencies of input admittance was found. From this relation, the magnitude of the acoustic inertance generated at the mouth end and resonance curves under the playing state were calculated. As for the levels at the multiples of the lowest two peak frequencies of resonance curve, their average varying rate per 20 cents change of the pitch frequency was estimated. The rate is about 3.0 dB and 3.6 dB in the lower and higher octave respectively. This rate suggests how much the harmonic levels of played tones vary with the performance of thepitch control techniques as "meri" or "kari." Based on these values, the arrangement of resonance frequencies which is desirable for the musical expression aimed in pitch control was discussed.
- 一般社団法人 日本音響学会の論文
一般社団法人 日本音響学会 | 論文
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