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School bell visible in St Johns School, Sydney, Australia (1872) Typical School bell in Austria (1978-2021) Sound of a School bell in Austria. The ringing of a school bell (In foreign) announces important times to a school's students and staff, such as marking the beginnings and ends of the school day, class periods, and breaks. In some schools ...
The most widely used form is the interrupter bell, which is a mechanical bell that produces a continuous sound when current is applied. See animation, above. The bell or gong (B), which is often in the shape of a cup or half-sphere, is struck by a spring-loaded arm (A) with a metal ball on the end called a clapper, actuated by an electromagnet ...
SN76477 "complex sound generator" is a sound chip produced by Texas Instruments (TI). The chip came to market in 1978, [1] and TI ceased production of the part. [when?] A compatible version is identified as ICS76477. [2] The chip is typically used as a sound effects generator in arcade games and toys and for hobby projects. The use of the ...
The Texas Instruments SN76489 is a programmable sound generator chip from the 1980s, used to create music and sound effects on computers and video game systems. Initially developed by Texas Instruments for its TI-99/4A home computer, it was later updated and widely adopted in systems like the BBC Micro , ColecoVision , IBM PCjr , Sega's Master ...
While a traditional carillon uses actual bells, electronic systems simulate a bell sound in several ways By striking semantra (rectangular metal bars roughly the diameter of a pencil, but of varying lengths) with an electric solenoid. By striking tubular bells similarly; By playing back a previously recorded bell sound
A bell-ringer at work in Palekh, Russia. A bell-ringer is a person who rings a bell, usually a church bell, by means of a rope or other mechanism.. Despite some automation of bells for random swinging, there are still many active bell-ringers in the world, particularly those with an advanced ringing tradition such as full-circle or Russian ringing, which are artistic and skilled performances ...
In sound and music, an envelope describes how a sound changes over time. For example, a piano key, when struck and held, creates a near-immediate initial sound which gradually decreases in volume to zero. An envelope may relate to elements such as amplitude (volume), frequency (with the use of filters) or pitch.
Sega Melody Generator 1981 1 Sega G80 arcade system board [24] Sharp Corporation: Sharp LR35902: 1989 4 Game Boy, Game Boy Color, Game Boy Advance: In Game Boy Advance, it's used for Game Boy/Game Boy Color mode and supports software-mixed PCM as a secondary function. [25] Sharp SM8521 1997 1 Game.com: Noise generator Sunsoft: Sunsoft 5B: 1992 3