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Frequency of string vibrator

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    A vibration in a string is a wave. Resonance causes a vibrating string to produce a sound with constant frequency , i. If the length or tension of the string is correctly adjusted, the sound produced is a musical tone. Vibrating strings are the basis of string instruments such as guitars , cellos , and pianos.
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    Vibrating Strings

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    The Vibration of a Fixed-Fixed String

    Pythagoras started his studies of musical scales by noting that two strings whose lengths formed certain ratios sounded pleasing when played together. How was this done in practice? One can make a two stringed instrument and adjust the tension on the strings so that they have the same pitch an interval of a unison :. On most string instruments like this, the pitch is changed as one plays, by placing a finger on the string and pressing down hard. This restricts the length of string that can vibrate, which then raises the pitch. If you press String 2 half way along its length at point A it will vibrate like a string half of its length and its frequency will be a factor of 2 higher. This new pitch will then form an octave with respect to String 1.
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    Creating musical sounds

    Acoustics and Vibration Animations Daniel A. Russell, Ph. Russell and may not used in other web pages or reports without permission.
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