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A microphone, colloquially called a mic, or mike, is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, and radio and television broadcasting. They are also used in computers and other electronic devices, such as mobile phones, for recording sounds, speech recognition, VoIP, and other purposes, such as ultrasonic sensors or knock sensors.
Phantom power, in the context of professional audio equipment, is DC electric power equally applied to both signal wires in balanced microphone cables, forming a phantom circuit, to operate microphones that contain active electronic circuitry. It is best known as a convenient power source for condenser microphones, though many active direct boxes also use it. The technique is also used in other applications where power supply and signal communication take place over the same wires.
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss. Hearing aids are classified as medical devices in most countries, and regulated by the respective regulations. Small audio amplifiers such as personal sound amplification products (PSAPs) or other plain sound reinforcing systems cannot be sold as "hearing aids".
IEEE 1284, also known as the Centronics port, is a standard that defines bi-directional parallel communications between computers and other devices. It was originally developed in the 1970s by Centronics before its IEEE standardization.
Shure Incorporated is an audio products corporation headquartered in the USA. It was founded by Sidney N. Shure in Chicago, Illinois, in 1925 as a supplier of radio parts kits. The company became a consumer and professional audio-electronics manufacturer of microphones, wireless microphone systems, phonograph cartridges, discussion systems, mixers, and digital signal processing. The company also manufactures listening products, including headphones, high-end earphones, and personal monitor systems.
A ribbon microphone, also known as a ribbon velocity microphone, is a type of microphone that uses a thin aluminum, duraluminum or nanofilm of electrically conductive ribbon placed between the poles of a magnet to produce a voltage by electromagnetic induction. Ribbon microphones are typically bidirectional, meaning that they pick up sounds equally well from either side of the microphone.
Beyerdynamic GmbH & Co. KG is a German manufacturer of microphones, headphones, wireless audio systems, and conference systems. Headquartered in Heilbronn, Germany, Beyerdynamic has been family-owned since its founding in 1924.
Georg Neumann GmbH is a manufacturer of professional recording microphones. It was founded in by Georg Neumann in 1928 and is based in Berlin, Germany. Their best-known products are condenser microphones for recording, broadcast, and live music production purposes. For several decades Neumann was also a leading manufacturer of cutting lathes for phonograph disks, and even ventured into the field of mixing desks. Today Neumann also manufactures preamplifiers, studio monitors, headphones, and audio interfaces.
Audio-Technica Corporation is a Japanese company that designs and manufactures professional microphones, headphones, turntables, phonographic magnetic cartridges, and other audio equipment.
Blumlein pair is a stereo recording technique invented by Alan Blumlein for the creation of recordings that, upon replaying through headphones or loudspeakers, recreate the spatial characteristics of the recorded signal.
The RCA Type 77-DX microphone is a poly-directional ribbon microphone, or pressure-gradient microphone, introduced by the RCA Corporation in 1954. It was preceded by the Type 77-D introduced in 1948. Its popularity and classic design has resulted in the 77-DX becoming an iconic microphone, used by broadcasters and media personalities such as Edward R. Murrow, David Letterman and Larry King.
Dr Harry Ferdinand Olson, E.E., Ph.D. was a prominent engineer and inventor with RCA Victor, the Acoustic Research Director of RCA Laboratories, Princeton, and a pioneer in the field of 20th century acoustical engineering notably in the fields of high-fidelity, digital music synthesis, microphones, loudspeakers, acoustics, radar, submarine communication, magnetic tape and noise reduction.
Transcription factor II E (TFIIE) is one of several general transcription factors that make up the RNA polymerase II preinitiation complex. It is a tetramer of two alpha and two beta chains and interacts with TAF6/TAFII80, ATF7IP, and varicella-zoster virus IE63 protein.
The BBC-Marconi Type A is a ribbon microphone that was produced by the BBC and Marconi between 1934 and 1959. The microphone has been described as "iconic" and a symbol of the BBC.
The lip-ribbon microphone is a type of ribbon microphone designed specially for use by live news reporters or sports commentators. Organisations such as the BBC, CBS and ABC use lip-ribbon microphones to cover events including motor racing, wrestling, processions and demonstrations.
The Coles 4038 is a ribbon microphone produced by Coles Electroacoustics. The microphone was designed and patented by the BBC in the 1950s and was originally known as the STC 4038. The sound of the microphone has been described as "British" with a "BBC politeness", and its appearance has been likened to that of a waffle iron. It is used in both sound recording and radio broadcasting.
A valve microphone is a condenser microphone which uses a valve amplifier rather than a transistor circuit.
Smoke Sessions Records is an independent record label based in New York City.
The Beyerdynamic M 160, sometimes referred to as Beyer M160, is a German hypercardioid ribbon microphone used for speech in broadcasting and for music in live concerts and the recording studio. Introduced in 1957 by Beyerdynamic, the M 160 was initially based on a rugged dual-ribbon transducer element with alnico magnets. The two 15-millimeter (0.59 in) ribbons combine to yield a highly directional pickup pattern. The ribbon assembly is turned 90 degrees away from the usual configuration to make the M 160 an end-address model; the similar M 130 model is a side-address microphone with a figure-8 pickup pattern. The structure later incorporated neodymium magnets as they became available.
The RCA Type 44 microphone is a bi-directional ribbon microphone, or pressure-gradient microphone, first introduced by the RCA Corporation in 1931.
References
- ↑ Woram, John (18 December 1976). "Sound Waves: 50 Years Of Studio Mikes". Billboard. Retrieved 8 May 2024.
