how are notes produced in a violin
Answers
The bow is a flexible wooden stick. Attached at two ends of the stick is a quantity of horsehair. The tension of the horsehair can be adjusted to compensate for controlled perpendicular pressure, exerted by the violinist's right hand/wrist/arm. Rosin is applied to the horsehair to provide a more controlled, light-but-sticky friction to the hair.
When a violinist draws his bow across the strings, the strings vibrate. Specifically, the portion of the strings between the nut -- a small bump near the top of the violin as the peg box connects to the neck and black fingerboard of the violin -- and the bridge -- the light, carved piece of wood at the other end -- vibrates.
The pitch (and timbre) of the sound is primarily varied by:
the thickness of the string
the length of the string
the string's tension
To a certain extent, the materials used to make the string also vary the quality of the sound.
Note that when a violinist presses his fingers of his left hand to a string, he is effectively changing the effective length of the string -- the part that vibrates. Making the length shorter results in a higher pitch.
So now you have a vibrating string. The string's vibrations are transferred to the bridge, which vibrates and in turn causes the front of the violin to vibrate. Underneath the front of the violin, roughly on the other side of where the bridge comes into contact with it, is a soundpost -- basically a wooden dowel precisely spans the distance between the front and the back of the violin, gently wedged into place. The soundpost helps provide support for the front of the violin, as the pressure exerted by strings, via the bridge, to the front of the violin is quite high. The soundpost also transmits the vibrations from the string-bridge-front to the back of the violin.
The body of a violin is basically a hollow wooden box. With the front and the back of the violin vibrating, the air inside vibrates as well. The sound is thus amplified, and comes out the f-holes in the front of the violin.
Drawing the bow causes the string(s) to vibrate.
These vibrations are transferred to the bridge, the front, the soundpost, and the back of the violin.
The air inside the hollow body of a violin vibrates at the same frequency, amplifying the sound. These sound waves emit from the f-holes.
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✔✔The sound of a violin is the result of interactions between its many parts. Drawing a bow across the strings causes the strings to vibrate. This vibration is transmitted through the bridge and sound post to the body of the violin, which allows the sound to effectively radiate into the surrounding air.
, how a violin produces sound.
✔✔It starts with the bow dragging across the violinstring, with the rosin giving friction, and making the string vibrate. After that, the vibration is sent through the bridge, into the top plate. ... It transmits the vibrations back and forth, top to bottom.
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