Audio equipment refers to devices that reproduce, record, or process sound . This includes microphones , radio receivers , AV receivers , CD players , tape recorders , amplifiers , mixing consoles , effects units , headphones , and speakers .
4-726: Brush Development Company was a manufacturer of audio , phonographic products and magnetic recording technologies located in Cleveland , Ohio . It was absorbed into Clevite in 1952. The business was founded in 1919 by Alfred L. Williams as Brush Labs to develop products that used piezoelectric crystals. Associates spun off the Brush Development Company in 1930 with piezoelectric phonograph pickups as its main product. Later it began manufacturing wire recorders , microphones , and speakers . During World War II, Vice President for Research Dr. Semi Joseph Begun
8-533: A part of audio electronics may also be designed to achieve certain signal processing operations, in order to make particular alterations to the signal while it is in the electrical form. Audio signals can be created synthetically through the generation of electric signals from electronic devices. Audio electronics were traditionally designed with analog electric circuit techniques until advances in digital technologies were developed. Moreover, digital signals are able to be manipulated by computer software much
12-613: The original Brush Labs and the Cleveland Graphite Bronze company to create Clevite . Audio products continued to be sold under the Brush trademark until 1960. The Clevite company was absorbed by Gould-National Batteries in 1969. Audio equipment Audio equipment is widely used in many different scenarios, such as concerts , bars , meeting rooms and the home where there is a need to reproduce, record and enhance sound volume. Electronic circuits considered
16-697: Was awarded a contract from the US National Defense Research Council for research on a substitute for stainless steel wire used in wire recorders by the military. Post-war, Brush manufactured a dictation recorder in 1946, and released the first USA built tape recorder in 1947 with the Brush Soundmirror. In 1950, Brush built the Model BL-206 and BL-216 Multichannel Oscillographs, and associated Model BL-932 DC Amplifiers. In 1952 Brush Development Company merged with
#351648