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Note that only one subwoofer need be used, even when using 5 or more satellite speakerse. During a recording session, ten or more machines could be ranged around the talent to record multiple originals. 08mm thick.
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Though it can be dated to the 1930's, the ported alignments were thoroughly researched and standardized by a. The fairlight was used on scores of popular recordings by artists such as peter gabriel and art of noise. A high-frequency signal, typically in the range of 50 to 150 khz, is added to the audio signal before being applied to the recording head.
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A multicore cable or snake (in the audio recording and entertainment fields) is a compact cable, typically about the diameter of a coin, which contains typically 16-24 individual microphone cables all housed by one common outer rubber jacket. Such noise can be avoided if the signal received from the antenna is considerably stronger than the current caused by thermal agitation; in any case, such noise can be minimized by suitable design. In addition, the last stage before the speaker must be a stage of power amplification.
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Since the 1930s electronic amplification has tremendously increased the impact and altered the technique of popular singers and instrumentalists. Interference (wave motion), effect that occurs when two or more waves overlap or intersect. Band-pass enclosures pass only a limited range of frequencies, negating the need for crossovers in the circuit.
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Compliance - the relative stiffness of a speaker suspension, specified as vas. Among the important characteristics of microphones are their frequency response, directionality, sensitivity, and immunity to outside disturbances such as shock or vibration. When radios first came into general use in the 1920s, most were operated by batteries.
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Decibel (db) - a logarithmic scale used to denote a change in the relative strength of an electric signal or acoustic wave. Frequencies of oscillating objects can cover a wide range of values. Whizzer - a small supplementary cone attached to the center of the speaker's main cone for the purpose of increasing high frequency response.
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Loudspeaker, device that converts an electrical signal into sound. Live music was the standard for american radio at the time and the major radio networks didn't permit the use of disc recording in many programs because of their comparatively poor sound quality. A lower number is better.
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The essential components of a radio receiver are an antenna for receiving the electromagnetic waves and converting them into electrical oscillations; amplifiers for increasing the intensity of these oscillations; detection equipment for demodulating; a speaker for converting the impulses into sound waves audible by the human ear (and in television a picture tube for converting the signal into visible light waves); and, in most radio receivers, oscillators to generate radio-frequency waves that can be mixed with the incoming waves. 38 cm/s) were used for voice, dictation, and applications where very long recording times were needed, such as logging police and fire department calls. Digital audio tape (dat), magnetic tape cassettes used for sound recording and reproduction, developed for professional use in the 1970s and for the consumer market by the late 1980s.
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One might also patch into an external effect processor into the channel. In a direct drive system, the motor drives the platter directly, without any intermediate wheels or belts. It became common studio recording practice to record on multiple tracks, and mix down afterwards.
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When sound waves strike the diaphragm and vibrate the ribbon, a small voltage is generated in the ribbon by electromagnetic induction. In international car stereo competitions, up to 64 subwoofers driven by some 100,000 watts have been used to generate up to 175 decibels! In the 1970s technics made the sl-1200, which has remained an industry standard for djs to the present day.
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Subwoofers are usually powered by a high power amplifier, and often an electronic crossover ensures that higher frequencies will not be directed to the subwoofer. 1 channel is usually dedicated to extended bass frequencies, for example, the low frequencies of a gunshot, string bass, or thunder. Crystal oscillators are most useful in the ranges termed very low frequency, low frequency, and medium frequency (vlf, lf, and mf).
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Fuelled mainly by the innovative mixing techniques that have come out of the hip hop and electronic dance music scenes, and regarded as a musical extension of the literary cut-up technique, this growing attitude posits that such a dj is not content simply to beatmatch two or three records and layer them over each other but that the end product should emerge as a new musical composition. Most radio receivers can operate quite well with an input from the antenna of a few millionths of a volt. Mixing consoles are used in many applications, including recording studios, public address systems, sound reinforcement systems, broadcasting, television, and film post-production.
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Musical instruments, tools used to expand the limited scope of musical soundssuch as clapping, stamping, whistling, humming, and singingthat can be produced by a person's unaided body. These folk zithers have melody strings passing over a fretted fingerboard, in addition to unfretted accompaniment strings. This uses a counterweight to offset the majority of the weight of the arm, and usually this incorporates a calibrated dial that allows a specific tracking weight to be dialled in.
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There are also many different kinds of synthesis methods, each applicable to both analog and digital synthesizers. In the late 19th and early 20th century, the alternative term talking machine was sometimes used. Headphones may be used to prevent other people from hearing the sound either for privacy or to protect others.
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Microphone, device used to transform sound energy into electrical energy. Another type of amplifier is the fluidic amplifier, based on the fluidic triode. On the most sophisticated designs, feedback from the platter itself, in the form of a series of pulses, was used to ensure that the speed of the platter remained locked and absolutely stable.
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Enclosures must be very large, but low end response of these systems is legendary among audiophiles. A design where the driver is completely buried in the enclosure, mounted in a sealed chamber (vr) and firing into a second ported chamber with the sound emanating from one or more ports. The magnetic field of the voice coil interacts with the magnetic field of the permanent magnet causing the whole semi-rigid cone (diaphragm) to oscillate and reproduce sound at the frequency of the applied electrical signal.
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The european lute is the namesake of a group of bowed and plucked instruments. Like most other instruments of the renaissance, it was built in a range of sizes that, together, made up a consort. See subwoofer, woofer, mid-range, tweeter.
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