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The amplifier (an electronic circuit) increases the amplitude of the electric signal using a power source (battery). The speaker converts the amplified electric signal back into a sound wave. The volume (gain) control is used to adjust the amount of amplification applied to the electric signal and thus, indirectly, controls the sound volume.
Schematic of an AGC used in the analog telephone network; the feedback from output level to gain is effected via a Vactrol resistive opto-isolator.. Automatic gain control (AGC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers, the purpose of which is to maintain a suitable signal amplitude at its output, despite variation of the signal amplitude at the input.
Discord is an instant messaging and VoIP social platform which allows communication through voice calls, video calls, text messaging, and media. Communication can be private or take place in virtual communities called "servers".
Yorkville Sound is a Canadian manufacturer of audio amplifiers (including the Traynor amplifier line), loudspeakers and related professional sound reinforcement equipment. [1] [2] Based in Pickering, Ontario, Canada, the firm has a global presence as an importer and exporter of audio electronic products. [3] [4]
The distinctive distorted sound of a human voice amplified by a megaphone is widely recognized, from its use in train and bus stations and sports arenas. Applied to music, it gives the sound of an antique acoustic gramophone record player. It has been used in radio advertisements and popular music to give retro and often humorous effects. A ...
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Standards bodies differ in their recommendations for nominal level and headroom. Selecting amplifiers with enough headroom helps to ensure that the signal will remain clean and undistorted. Like most sound reinforcement equipment, professional power amplifiers are typically designed to be mounted within standard 19-inch racks.
Electro-Voice (EV) is an American manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers, focused on pro audio applications such as sound reinforcement and commercial and residential audiovisual installations.