Sound is any disturbance that travels through an elastic medium such as air, ground, or water to be heard by the human ear. When a body moves back and forth (vibrates), the oscillation causes a disturbance of the surrounding medium, it radiates outward in straight lines in the form of a pressure wave. The pressure wave is perceived by the ear as a sound. In physics, sound is considered to be waves of vibratory motion, whether or not the human ear hears them.
Sound waves are generated by and vibrating body. When something is moved, like a violin sting, the sting moving pushes molecules of air into a clump, which also creates a space. The clump's energy of motion causes it to move into other air molecules. Then air molecule move back into the empty space. Sound waves cannot travel in a vacuum because there is no air.
The human ear can hear most sounds. We can generally hear between 20 and 20,000 vibrations per second, but changes for each individual. The sound's volume is measured in decibels. The number of vibrations per second is called the frequency. Sounds below 20 vibrations per second are called subsonic. Sounds above 20,000 vibrations per second are called an ultrasonic.
A sound wave is usually represent graphically by a wavy, horizontal line. For a Picture see the bottom of page 6. The upper part of the wave is called the crest. It represents condensation. The lower part is called the trough. It represents the rarefaction. The graph is not a picture of the wave; it is just a representation of the wave. The wavelength, length of the sound wave, is measured as the distance from one point of the greatest condensation to the next following it or from one point to the next corresponding point on another set of waves.
The velocity of the sound is not constant; it varies because of temperature. Sounds travel better in warmer temperatures. Sound travels more slowly in gases than in liquids and more slowly in liquids then in solids.
Anything that vibrates produces sound. ... Vocal cords vibrate to make sound. ... These are also, all characteristics of sound. ... If you didn't have vibration then you wouldn't hear sound. ... A pitch of a sound depends on the frequency of the waves. ...
Sound is a form of energy that can be fou nd all around us. ... Sound also aids in our experience of different emotions. ... The wavelength of a sound is a necessary aid in determining the speed of that sound. The velocity of a sound wave can be determined as follows; the speed of sound is equal to the wavelength times the frequency of that sound (Ba sic Installer Study Guide 132). ... Sound travels contrarily different through different media and therefore the speed of sound alwa ys varies. ...
In this matter, Connecticut's case to have the Cross-Sound Cable turned off is clear, simple and logical. ... The Cross-Sound Cable Co. ignored warnings from state Sen. ... Of course the Cross-Sound Cable Co. contends the line has done no environmental damage to the Sound. ... If it weren't for Connecticut's current moratorium on cables and pipelines in the Sound, the state might be faced with as many as a dozen applications from utilities to crisscross the Sound. ... We hope Abraham reverses course on his previous decision, demonstrating that the willful neglect of the law d...
Sound Waves Sound is everywhere. ... Whether it's the sound that the wind makes when it rustles the tree branches or the music coming out of our speakers, all sound is composed of little sound waves that are made by slight vibrations. ... Sound waves are a part of every noise and they are imperative to sound perception. ... For example, the sound of a collapsing building would be incredibly louder than the sound of a vibrating guitar string. ... (Huffstetler) The types of sound waves that produce the lowest and deepest sounds are called bass waves. ...
William Faulkner's background influenced him to write the unconventional novel The Sound and the Fury. ... In writing The Sound and the Fury, Faulkner pays no attention to normal literary work. ... This background, together with a believable plot, convincing characterization and important literary devices enables William Faulkner in The Sound and the! ... The structure of The Sound and the Fury leaves much to be desired. ... Therefore, the greatest fulfillment of The Sound and the Fury does not come from the the sequence of events, climax, or resolve, but the appreciation of the ...
Describing the Issue What is sound processing? By simple definition, sound processing is the recording and manipulation of sound. ... A sound engineer for a movie, for example, handles the amplitudes and panning of every single sound. ... The focus of these equipments is to offer the best quality type of sounds for users. ... Consumers claim that CDs provide a better sound, and has no hiss or crackling. ...
They also share small moments of Internal Sound': small scenes where we hear the sounds that a character hears. ... This aim for sound to be as realistic as possible using various forms of reality and point-of-view is the key to the sound design of Ryan. ... "To hit you in the face with the sound. ... He discusses ideas about how sound can make film more realistic than it otherwise would without the sound. ... The same can apply for sound. ...
