Energy dissipations in underwater and aerial organ pipes.
スポンサーリンク
概要
- 論文の詳細を見る
A fundamental theory on the overall <I>Q</I> of resonance in underwater and aerial organ pipes is proposed. It contains the following five mechanisms of energy dissipation or conversion governing the <I>Q</I>: wall vibrations, wall-borne hysteresis, wall radiation, wall boundary effects, and open end radiation. Our theory is encouraged by a relatively good agreement between theoretical and experimental <I>Q</I>-values. Numerical calculation of the <I>Q</I> due to each dissipation mechanism except the wall-borne hysteresis is carried out on two column mediums, five wall materials, and four pipe geometries. Underwater measurement of wall vibrations is moreover done, and its result makes surer the validity of our theory. An essential difference between underwater and aerial organ pipes clearly manifests itself as a decisive difference in their own governing dissipation mechanisms due to the differences between water and air.
- 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
- How large is the individual difference in hearing sensitivity?: Establishment of ISO 28961 on the statistical distribution of hearing thresholds of otologically normal young persons
- Applying generation process model constraint to fundamental frequency contours generated by hidden-Markov-model-based speech synthesis
- Vocal cord vibration in the production of consonants. Observation by means of high-speed digital imaging using a fiberscope.:Observation by means of high-speed digital imaging using a fiberscope
- The early reflections of the impulse response in an auditorium.
- Multiple reflections between rigid plane panels.