The self-noise or equivalent input noise level is the sound level that creates the same output voltage as the microphone does in the absence of sound. This represents the lowest point of the microphone's dynamic range, and is particularly important should you wish to record sounds that are quiet. The measure is often stated in dB(A), which is the equivalent loudness of the noise on a decibel scale frequency-weighted for how the ear hears, for example: "15dBA SPL" (SPL means sound pressure level relative to 20 micropascals). The lower the number the better. Some microphone manufacturers state the noise level using ITU-R 468 noise weighting, which more accurately represents the way we hear noise, but gives a figure some 11–14dB higher. A quiet microphone typically measures 20dBA SPL or 32dB SPL 468-weighted. Very quiet microphones have existed for years for special applications, such the Brüel & Kjaer 4179, with a noise level around 0dB SPL. Recently some microphones with low noise specifications have been introduced in the studio/entertainment market, such as models from Neumann and Røde that advertise noise levels between 5–7dBA. Typically this is achieved by altering the frequency response of the capsule and electronics to result in lower noise within the A-weighting curve while broadband noise may be increased. [ citation needed]

The additional length of the Audio-Technica AT8035 can make it unsuitable for on-camera use, as it will get in a shot with some lenses. Longer shotgun microphones are also more susceptible to the distortion of off-axis sounds that can occur in rooms with a lot of reverb. A condenser mic uses a capacitor and requires phantom power. On the other hand, a dynamic microphone has a coil inside a magnetic field. If you want to know more about the types, take a look at our guide to condenser and dynamic microphones. At only 7.01 inches (178 mm) long, the MKH 8060 is very compact for a shotgun microphone. It has a sturdy metal construction, and Sennheiser has designed its RF circuit to be highly immune to moisture. This means you can be confident using the microphone even when the weather turns bad. The Sennheiser MKH 8060 is a bit expensive, but it will take your audio recordings to the next level.Montgomery, Henry C. (1959). "Amplification and High Fidelity in the Greek Theater". The Classical Journal. 54 (6): 242–245. JSTOR 3294133. a b Robjohns, Hugh (2001). "A Brief History of Microphones" (PDF). Microphone Data Book. Archived from the original (PDF) on November 25, 2010. In 1856, Italian inventor Antonio Meucci developed a dynamic microphone based on the generation of electric current by moving a coil of wire to various depths in a magnetic field. This method of modulation was also the most enduring method for the technology of the telephone as well. Speaking of his device, Meucci wrote in 1857, "It consists of a vibrating diaphragm and an electrified magnet with a spiral wire that wraps around it. The vibrating diaphragm alters the current of the magnet. These alterations of current, transmitted to the other end of the wire, create analogous vibrations of the receiving diaphragm and reproduce the word." [4] Depending on the application, measurement microphones must be tested periodically (every year or several months, typically) and after any potentially damaging event, such as being dropped (most such microphones come in foam-padded cases to reduce this risk) or exposed to sounds beyond the acceptable level.

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The Sennheiser MKH 416 is one of the main go-to shotgun microphones for professionals in the film and television industries and has been for some time. It is also a very popular microphone for voice-over recording. Some microphone designs combine several principles in creating the desired polar pattern. This ranges from shielding (meaning diffraction/dissipation/absorption) by the housing itself to electronically combining dual membranes. Plenty of times, you’re on the street or live streaming and don’t have the luxury of individually miking people, or you’re filming a scene where you can’t have a visible lavalier mic. That’s why you’ll find top-notch shotgun mics throughout the professional world—often accompanied by professional-level prices. But shotguns have been around for a while, and these ubiquitous tools of the trade are often inexpensive enough that even beginners and budget-minded users can add quality equipment to their kit bags. The dynamic range of a microphone is the difference in SPL between the noise floor and the maximum SPL. If stated on its own, for example, "120dB", it conveys significantly less information than having the self-noise and maximum SPL figures individually. Knowles Completes Acquisition of NXP's Sound Solutions Business". Knowles . Retrieved July 5, 2011.