Williams



__**What affects the volume of sound is any obstacles that stands in sound's path. When sound waves are interrupted their impact is lessoned. The volume of sound is affected by the distance you are to the object making sound. The closer you are the louder the sound is. The higher the volume is, the louder the sound. The higher the amount of decibels is, the louder the sound is.**__
 * __Research paper: Sound is vibrations that travel through the atmosphere, that can be heard by human's or animal's ears. It can travel through a solid, liquid, or gas. Sound is affected by density and pressure. It is also affected by temperature.__ __These three affects lead to the__ __speed the vibrations of sound travels at. The sound in any organism is limited to the range of frequencies.__**
 * __Sound is produced by moving vibrations push particles in the air. Vibrations cause areas of different moving particles. Sound comes from frequency, sound waves, vibrations, wavelengths, amplitude, velocity of sound, echoes, and reverberation. Fast vibrations make high frequencies. In other words high pitches and high sounds. Vibrations can be an echo. Sound is produced by the vibrations of a body.__**
 * __What affects the pitch of sound is amplitude, the frequency, and the loudness. It is also affected by the length and width of the object making the sound. Its frequency increases, the higher the pitch will be. Also the higher the amplitude of the sound, the louder the pitch. The pitch of a sound is determined by the frequency of the sound. The loudness is based on the intensity of the sound.__**
 * __The way you measure the velocity of sound is by the decibel of the sound. To measure sound levels, very complicated microphones are used. They are placed at a specific location away from the sound producer. Sound levels are measured over ranges of audio frequencies. Electrical signals could also be used to measure the velocity of sound.__**
 * __Sound is also produced by frequencies. Frequency is the number of occurences of a repeating event per unit time. This is also referred to as temporal frequency. The period is a reciprocal of the frequency. For instance if a newborn baby's heart beats at a frequency of 120 times a minute, then its period is half a second. A traditional unit of measure used with cycling mechanical devices is revolutions per minute. The frequency range of a system is the range over which it is considered to provide a useful level of signal with acceptable characteristics.__**
 * __Another factor that affects the pitch of sound, is amplitude. Amplitude is the change in the variable with each oscillation within an oscillating system. The amplitude is visually represented by vertical distance between the extrema of the curve and the equilibrium value. Root mean square is mostly used to represent amplitude especially in electrical engineering. It is defined as the square roof of the mean overtime of the square vertical distance.__**
 * __What else the volume of sound is any obstacles. The obstacles can stop sound waves. Sometimes sound waves are able to pass. They are able to pass through liquid, gas, and solids. Obstacles can even be a sound. A wall for instance can be an obstacle. It can reflect sound waves instead of letting them pass through the hard wall.__**
 * __You measure sound in decibels, A decibel isvone tenth of a bel. Decibels originate from methods of reductions in audio levels in telephone circuits. They were originally measured in units of miles of standard cable. The decibel is commonly used in acoustics to quantify sound levels. The human ear has a large dynamic range in audio perception.__**
 * __Sound is produced by a vibrating source that pushes molecules back and forth. These compressions produce waves and the shape determines the pitch and volume of the sound we hear. The greater the frequency waves the higher the pitch of the sound. The greater the amplitude the louder the sound.__**