CELLO-RESONANCE II [ E 83Hz ]

 [ 03/19/2023 ]      Labels: 4C4E.Resonance C

The E(83Hz) resonance orbit is built as a two round orbit of E(166Hz). Generally whole resonance is well synchronized.

チェロのC線のE音(83Hz)、1オクターブ上の E(166Hz)の共鳴軌道を２周する形で所定の共鳴波長を得ている。時差のある２つ波に分かれる場合もあるが、全体が基本的に２ビートで一体となって共鳴している。

E(83Hz) Typical Resonance / Cello-1

 [ 5/31/2021 ]     Labels: 4C4E.Resonance C

The orbit is estimated as a double-loop-orbit or plural double loops of upper E(166Hz).
二重ループ軌道をとることで 2倍波長(L=4.11m、83Hz)のE音を作っているようだ。

E(83Hz) on C-string Simulation x160 slower

[ 5/31/2020 ]     Labels: 4C4E.Resonance C

 
Cello body creates a new macroscopic single-beat along the height direction on the floor, at the same time, with muting the round slice resonance. 
(全体としては身長方向に１ビートの縦振動を生みだしている)

Left : Without endpin
Right: On floor, with steel pipe endpin
Cello: Cello-1 (8-year-old)
160 times slower simulation, silent video 
(same post: https://advancedendpinholder.blogspot.com/  70h. E(83Hz) on C-string Simulation x160 slower)

4C4E. Cello-1 Simulation x70 slower

[ 4/10/2020 ]     Labels: 4C4E.Resonance C

 
E note on C-string(83Hz, 4C4E, bowing) Typical Resonance Simulation:
On cello's low notes(C - F#), down beats from C-string need to be added cello body's up beats and completed by. However the extended height of body by deployed an endpin misses ideal up beats and weaken the resonance amplitude. 

(C線上のE、エンドピン装着によりチェロは裏拍をうまく刻めず結果として十分な共鳴を実現できていません)

Left : Without endpin
Right: On floor, with steel pipe endpin
Cello: Cello-1 (8-year-old)
70 times slower, silent video

Reference post:
--> https://advancedendpinholder.blogspot.com/
--> 94..Resonance Direction-C
--> 94..Cello-1 on C(C-G) Resonance Direction and V/H-Ratio