Changing+the+Sound

=**__ Changing the Sound __**=

There are multiple ways to change the sound of certain objects. For most things, changing the length of the object, like a xylophone, will change the frequency of the sound. In other objects, like guitars, strings are used to change the frequency of the sound. In order to do this, the length, width, and tension of the strings are taken into account. Below is an example of how changing the length of an object will change the sound: media type="file" key="My First Project.mov" ** In this video, the mallet is hitting each of the 3 tubes. When it hit the longer tube, the sound frequency was the lowest out of all 3 tubes because it was the longest. The shortest tube made the highest pitched noise with its small frequency, and the middle tube's sound frequency was found somewhere right in between the longer and shorter tubes.

In order to determine the note of a particular sound, the 12th root of 2 will be multiplied by the previously used note to obtain the next note. For example, 256 is the middle C note. In order to figure out what the next note will be, and what the note following that will be and so on, 1.0595 (the 12th root of 2) will be multiplied by the previous note. **

Example: 256*1.0595 = 271.2 Hz 271.2*1.0595 = 287.4 Hz 287.4*1.0595 = 304.5 Hz 304.5*1.0595 = 322.6 Hz 322.6*1.0595 = 341.8 Hz **** 341.8*1.0595 = 362.1 Hz 362.1*1.0595 = 383.6 Hz 383.6*1.0595 = 406.5 Hz 406.5*1.0595 = 430.7 Hz 430.7*1.0595 = 456.3 Hz 456.3*1.0595 = 483.4 Hz 483.4*1.0595 = 512.2 Hz

In other words, all of these values represent the notes doe, rey, mi, fa, so, la, ti, doe. ** http://www.ecardfriends.com/wallpaper/guitar.htm Another example of how to change the sound of an object is by changing the width. In a guitar, there are 6 strings, each with different widths. In the picture above, the bottom string is the widest string therefore having the lowest sound. The top string is the smallest string in width; hence it has the highest sound. Guitar sounds can also be altered by varying the lengths of each guitar string. This is done when the guitar player uses his fingers to pinch the string at a certain point, therefore causing the change in length of the string. With a shorter length of a string, or even multiple strings, the sound is altered. Tension also comes into play when changing the sound of a guitar. Each of the strings is wrapped around a tuning knob at the end of the guitar. By twisting the tuning knob, the guitar string tension is altered. This will change the frequency of the sound.



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