7/26/2023 0 Comments Soundwaves phonicsA sound wave is travelling pressure fluctuation that propagates through any medium that is elastic enough to allow molecules to crowd together and move apart. This is because a sound produced at one place, say a loudspeaker, sets up a sound wave that travels through the acoustic medium. Approaching a concert, for example, you may well hear the thumping of the bass drum before all else. Sound can travel across relatively long distances and different frequencies can move more easily and faster through certain substances than others. Thus, sound is produced when pressure fluctuations impinge upon the eardrum. When pressure fluctuations or in other words, vibrations, reach our eardrum, they cause it to move, and our auditory system translates these movements into neural impulses, which we experience as sound. In fact the only place in which sound cannot travel is a vacuum). Now, these movements cause pressure fluctuations in the surrounding air (or some other medium, because sound can travel not only through air, but also water, wood, metal, or any other material. All these examples involve, when you think about it, movement of some sort. Just think of door slamming, violins, wind, and human voices. Several types of events in the world produce the sensation of sounds. With the study of verbal communication and one of the fundamental questions acoustic phonetics answers is the question of: "What is sound"? It is the most “technical” of all disciplines concerned The branch of phonetics that studies the physical parametres of speech sounds is called acoustic phonetics.
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