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The xylophone (from Ancient Greek ξύλον (xúlon) 'wood' and φωνή (phōnḗ) 'sound, voice'; [1] [2] lit. ' sound of wood ' ) is a musical instrument in the percussion family that consists of wooden bars struck by mallets .
The exhaust pipes in automobile exhaust systems are designed as acoustic resonators that work with the muffler to reduce noise, by making sound waves "cancel each other out". [7] The "exhaust note" is an important feature for some vehicle owners, so both the original manufacturers and the after-market suppliers use the resonator to enhance the ...
A number of instruments have been invented, designed, and made, that make sound from matter in its liquid state. This class of instruments is called hydraulophones. Hydraulophones use an incompressible fluid, such as water, as the initial sound-producing medium, and they may also use the hydraulic fluid as a user-interface.
Musical acoustics or music acoustics is a multidisciplinary field that combines knowledge from physics, [1] [2] [3] psychophysics, [4] organology [5] (classification of the instruments), physiology, [6] music theory, [7] ethnomusicology, [8] signal processing and instrument building, [9] among other disciplines.
The hard mallets create the sharp and bright sound, normally used for faster playing. The soft mallets create the mellow and softer tone, used for slower songs. In the Thai xylophone family, there are several similar instrument with bars made from different types of material, such as metal (ranat ek lek, ranat thum lek) and glass (ranat kaeo).
The balafon (pronounced / ˈ b æ l ə f ɒ n /, or, by analogy with xylophone etc., / ˈ b æ l ə f oʊ n /) is a gourd-resonated xylophone, a type of struck idiophone. [1] It is closely associated with the neighbouring Mandé, Bwaba Bobo, Senoufo and Gur peoples of West Africa, [1] [2] particularly the Guinean branch of the Mandinka ethnic group, [3] but is now found across West Africa from ...
However, a cylinder closed at both ends can also be used to create or visualize sound waves, as in a Rubens Tube. The resonance properties of a cylinder may be understood by considering the behavior of a sound wave in air. Sound travels as a longitudinal compression wave, causing air molecules to move back and forth along the direction of travel.
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording .