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.
Alesis Digital Audio Tape, commonly referred to as ADAT, is a magnetic tape format used for the recording of eight digital audio tracks onto the same S-VHS tape used by consumer VCRs, and the basis of a series of multitrack recorders by Alesis. Although originally a tape-based format, the term ADAT later also referred to hard disk recorders like the Alesis ADAT HD24. In 2004, recognizing the ADAT for "beginning a revolution of affordable recording tools," it was inducted into the first-ever TEC Awards TECnology Hall of Fame.
Mackie is an American professional audio products brand. Founded in Seattle in 1988 by Greg Mackie, a manufacturer of affordable and versatile compact pro audio mixers, Mackie is the primary product line of LOUD Technologies.
Shure Inc. 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.
The Shure SM57 is a low-impedance cardioid dynamic microphone made by Shure Incorporated and commonly used in live sound reinforcement and studio recording. It is one of the best-selling microphones in the world. It is used extensively in amplified music and has been used for speeches by every U.S. president since its introduction in 1965. In 2004, honoring its four decades of "solid, dependable performance", it was inducted into the first-ever TEC Awards TECnology Hall of Fame.
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-A microphone was a simplex (uni-directional) ribbon microphone, the forerunner of the RCA Type 77-DX microphone. The 77-A was designed Dr. Harry F. Olson in the late 1920s or early 1930s; prototypes are rumored to have existed in 1929 and 1930, but the 77-A was not announced until 1932.
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.
Royer Labs is an American microphone company known for its ribbon microphones.
The TEC Awards is an annual program recognizing the achievements of audio professionals. The awards are given to honor technically innovative products as well as companies and individuals who have excelled in sound for television, film, recordings, and concerts. TEC is an acronym for Technical Excellence and Creativity.
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.
Spill is the occurrence in sound recording and live sound mixing whereby sound is picked up by a microphone from a source other than that which is intended. Spill is usually seen as a problem, and various steps are taken to avoid it or reduce it. In some styles of music, such as orchestral music, jazz, and blues, it is more likely to be accepted or even seen as desirable.
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.
The Sennheiser MD 421 is a German cardioid dynamic microphone, widely used for speech in broadcasting and for music in live concerts and the recording studio. Introduced in 1960, the internal large-diaphragm transducer element of the MD 421 is still produced unchanged by Sennheiser. The MD 421 is considered a classic, an industry standard. More than 500,000 units have been sold.
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 Neumann U 87 is a poly-directional large-diaphragm condenser microphone. Originally introduced in 1967, a version of the U 87 is still produced by Georg Neumann GmbH. The U 87 became an industry standard recording microphone, a reputation that continues to endure.
AEA Ribbon Mics Inc is an American audio equipment manufacturing company that manufactures ribbon microphones, professional audio electronics, and accessories based in Pasadena, California. AEA was established by Wes Dooley in 1965 as a record label. Starting in 1976, AEA began repairing and servicing RCA 44BX ribbon microphones. AEA microphone models include R44, R84, R92, R88, N8, N13, N22, KU5a, and KU4. Electronics include TDI active direct box, TRP3 preamp, RPQ3 preamp, TRP500 and RPQ500. AEA's electronics are designed by circuit designer Fred Forssell. AEA services and repairs vintage ribbon microphones, Coles microphones, and vintage microphone accessories. They have been servicing RCA ribbons since the 70s and have many spare parts in stock and available for purchase.
