Room acoustics — describes how sound behaves in an enclosed space.The way that sound behaves in a room can be broken up into roughly four different frequency zones: *The first zone is below the frequency that has a wavelength of twice the longest length of the… … Wikipedia
Resonance Raman spectroscopy — Resonance Raman (RR) spectroscopy is a specialized implementation of the more general Raman spectroscopy. Overview As in Raman spectroscopy, RR spectroscopy provides information about the vibrations of molecules, and can also be used for… … Wikipedia
Resonant room modes — affect the low frequency response of a sound system at the listening position. They are actually one of the biggest obstacles to high fidelity reproduction with modern equipment as they exist to varying degrees in all rooms and can only be… … Wikipedia
Sympathetic resonance — is a harmonic phenomenon wherein a formerly passive string or vibratory body responds to external vibrations to which it has a harmonic likeness. The classic example is demonstrated with two similar tuning forks of which one is mounted on a… … Wikipedia
Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal … Wikipedia
Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios … Wikipedia
Audio feedback — (also known as the Larsen effect after the Danish scientist, Søren Larsen, who first discovered its principles) is a special kind of positive feedback which occurs when a sound loop exists between an audio input (for example, a microphone or… … Wikipedia
Audiophile — An audiophile, from Latin audio [ [http://www.askoxford.com/concise oed/audio audio ] , Compact Oxford Dictionary, Accessed 2007 05 11] I hear and Greek philos [ [http://www.askoxford.com/results/?view=dict freesearch=phile branch=13842570… … Wikipedia
Glass transition temperature — The glass transition temperature, T g, is the temperature at which an amorphous solid, such as glass or a polymer, becomes brittle on cooling, or soft on heating. More specifically, it defines a pseudo second order phase transition in which a… … Wikipedia
musical sound — Introduction any tone with characteristics such as controlled pitch and timbre. The sounds are produced by instruments in which the periodic vibrations can be controlled by the performer. That some sounds are intrinsically musical,… … Universalium
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium