This video is an exaggerated and simplified vibration model of the cello.
The beat number (combination of beat numbers) will depend on the tone or materials (length) of the endpin.
The vibration of tailpin and lower bouts( or whole-length-vibration ) were taken into account.
-誇張され単純化されたチェロの振動モデル-
[ 10/19/2016 ] Labels: 95.Video & Study1
Floating in the air, without endpin
C note (66 Hz, open)
Play: 0.9 second after a pizzicato, 3 measurements
Cello: Filip Kuijken 2011
32 times slower
[ 10/17/2016 ] Labels: 20.Vibration-Video
Placed on wooden floor, with steel pipe endpin
C note (66 Hz, open)
Play: 0.9 second after a pizzicato, 3 measurements
Cello: Filip Kuijken 2011
32 times slower
The vibrations of strings are transmitted to the top plate of cello. Meanwhile the movements of the top plate impact to strings behavior.
This and the next slow-motion videos show a strong linkage between the strings and the top plate.
When a cello player plays his/her cello, they can see a vibration-retention-image of strings over the fingerboard. Probably, the behavior of the strings or the beauty of the string-vibration will very well link to the vibration of the top plate and finally to his/her cello sound. Of course string material/brands or player's skill should be taken into account though.
弦の振動と表板の振動は非常によく連動しているように見えます。チェロ演奏時に指板の上に見える弦振動残像・・それは、表板の振動、そして演奏の音とダイレクトに結びついているかもしれません。
[ 10/17/2016 ] Labels: 20.Vibration-Video
placed on the floor, with steel pipe endpin
C note (66 Hz, open)
Play: 0.6 seconds after a pizzicato, 3 measurements
Cello: Filip Kuijken 2011
32 times slower
The most important role of the cello bridge is to transmit the vibrations from strings to the top plate.
At the same time, contrary, the vibrations of top plate are transmitted back to strings. These slow-motion videos show an another role: The bridge resolves the potential strain between the strings and the cello body by twisting itself and by taking a beat.
チェロの駒は弦の振動を表板に伝える役割を持っています。しかし同時に胴体の振動を弦にも伝えることになります。これらビデオは、駒自身がゆがみながら弦と胴体間の位置歪を解決する別の姿を持っていることを見せてくれます。
[ 10/16/2016 ] Labels: 20.Vibration-Video
floating in the air, without endpin
C note (66 Hz, open)
Play: 0.6 seconds after a pizzicato, 3 measurements
Cello: Filip Kuijken 2011
32 times slower
[ 10/16/2016 ] Labels: 20.Vibration-Video
Granted by European Patent : ENDPIN HOLDER
Apr 13 2022, EP3267436
Granted by Japan PO : エンドピンホルダー
Oct 12 2018, No.6416017
Granted by US PTO : ENDPIN HOLDER
July 3 2018, No.10 013 956
Published by US PTO : ENDPIN HOLDER
15-Feb-2018, No. US-2018-0047371-A1
Published by European P C : ENDPIN HOLDER
10-Jan-2018, No. EP 3 267 436
PCT/JP2015/076540 : エンドピンホルダー
(published No. WO 2016/139835)
特開-2016-161749 (JPN) : エンドピンホルダー
実用新案登録-3197284 (JPN) : エンドピンホルダー
[ 10/14/2016 ] Labels: B0.Patents
G note (98 Hz, open)
Left: placed on the floor, with steel pipe endpin
Right:floating in the air, without endpin
Play: 1.0 second after a pizzicato
Cello: Filip Kuijken 2011
32 times slower
[ 10/03/2016 ] Labels: 20.Vibration-Video