acoustical resonator
11stringed instrument — a musical instrument having strings as the medium of sound production, played with the fingers or with a plectrum or a bow: The guitar, the harp, and the violin are stringed instruments. * * * Any musical instrument that produces sound by the… …
12speech — /speech/, n. 1. the faculty or power of speaking; oral communication; ability to express one s thoughts and emotions by speech sounds and gesture: Losing her speech made her feel isolated from humanity. 2. the act of speaking: He expresses… …
13History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
14percussion instrument — a musical instrument, as the drum, cymbal, triangle, xylophone, or piano, that is struck to produce a sound, as distinguished from string or wind instruments. [1870 75] * * * A musical instrument that is struck (or sometimes shaken or scraped) to …
15wind instrument — /wind/ a musical instrument sounded by the breath or other air current, as the trumpet, trombone, clarinet, or flute. [1575 85] * * * ▪ music Introduction any musical instrument that uses air as the primary vibrating medium for the… …
16musical 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,… …
17Flute — The flute is a musical instrument of the woodwind family. Unlike other woodwind instruments, a flute is a reedless wind instrument that produces its sound from the flow of air against an edge.A musician who plays the flute can be referred to as a …
18Pfeifsprache — Dieser Artikel befasst sich mit dem akustischen Pfeifen. Für Gegenstände, die als Pfeife bezeichnet werden, siehe unter Pfeife. Pfeifen ist das Erzeugen von Tönen mithilfe von Luft, die schnell durch einen Hohlraum mit kleiner Öffnung strömt und… …
19Mbira — or Sanza Mbira dzavadzimu Other instrument Classification Lamellophone, Plucked Idiophone Hornbostel–Sachs classification 122.1 (Plu …
20Audio 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… …
