![]() The sound intensity or sound power is measured in decibels (dB) with the use of a device called a decibel meter. the strings are displaced more), greater will be the amplitude of vibration. If you put more energy into plucking the guitar wires (i.e. This energy is determined by the amplitude of the vibrating source (in this case the amplitude of the guitar). The amount of energy being pumped by the source of the sound to the listener determines how loud the sound is. The vibrating air particles then reach the listener and vibrate the small parts within the listener’s ears which produces sound. This series of alternating compressions and rarefactions create a pressure difference and the disturbance travels through the particles of the medium transporting energy. A vibrating guitar forces the air particles around it to compress and expand. Sound is produced in a medium and caused by vibration. Sound Waves and What Makes one Sound Louder than the Other In this article, we will dive into understanding the unit of sound, which is the decibel, and get to know how a decibel scale (dB scale) works but before that let us understand how sound travels and what makes one sound louder than the other. Measuring noise levels was not an easy affair earlier, but now with sophisticated and automated meters, one can measure sound intensity and volume easily and with accuracy. If noise is a problem for you then you must take steps to measure the noise levels so that you could reduce them. Have you ever been in a noisy environment that has left you uneasy and grimacing? Have you covered your ears while walking past a noisy factory? If you have you must have wondered what makes some sound louder than others.
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