@techreport{oai:ipsj.ixsq.nii.ac.jp:00056074,
 author = {山上, 憲 and 吉川, 茂 and Ken, Yamakami and Shigeru, Yoshikawa},
 issue = {16(2002-MUS-049)},
 month = {Feb},
 note = {これまでの管楽器のシミュレーション研究では,楽器の気柱自体の細かい特性についての考察はあまりなされていない。本研究では楽器内部の段差に注目することで,楽器気柱の応答の違いがどのように影響するかを検討する。トランペットの管内形状において,マウスピースと楽器の接続部分に段差あり/なしの2つのモデルの反射関数を求め,それを元に物理モデルで発音シミュレーションを行なった。シミュレーションは吹奏圧を一定にする場合と,徐々に上げていく場合の2通りを行なった。その結果,管内の段差の有無による反射関数の違いは,定常音の状態では,違いがほとんど見られないが,音の立ち上がりについては,多少ではあるが違いがあることが確認された。, In simulation research of wind instruments, considerations about fine characteristics of the air column have not been made yet. Focusing on a slight and abrupt change in bore radius, the resulting differences in the response of the air column were examined. Two kinds of physical models were assumed based on the trumpet bore shape: One has a discontinuity in radius at the connection between the mouthpiece and the instrument body; the other has no such a discontinuity. Simulations on the self-oscillation were performed in both steady-state and attack transient conditions after deducing the reflection functions from the assumed bore shapes. The effect of the bore discontinuity was not detected in the steady-state oscillation, but appreciably appeared in the attack transients.},
 title = {金管楽器の物理モデルにおける反射関数の考察},
 year = {2003}
}