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Do keep correct distance between lips and microphone. If the distance is too great, speech is inaudible and background noises creep in; if too small, blaring and blasting result. Do shield your microphone. Turn your head away from noise generating sources while transmitting. Do keep the volume of a hand set earphone low.
At a distance of about 50 cm (0.5 m) the time delay for a signal reaching first one and then the other microphone from the side is approximately 1.5 ms (1 to 2 ms). If the distance is increased between the microphones it effectively decreases the pickup angle.
As a result of this, many lip-ribbon microphones use a fixed mouth guard to ensure a distance of 54 millimetres (2.1 in) between source and microphone. Any plosive effects are then controlled by means of pop shields and meshes. [2] [3] Lip-ribbon microphones are more efficient at noise reduction at lower frequencies.
The position of the pop filter is different in different recording situations, with a further position from the microphone causing fewer pop sounds. More distance means increasing the microphone gain and gaining more room noise. Normally, to get good quality, the pop filter should be placed about 2–6 inches (5–15 cm) away from the ...
With this technique is the angle between the microphone axes α = ± 55° = 110° and the distance between the cardioid microphones (microphone basis) is in this case a = 17 cm and gives a total recording angle of 96°. The choice between one and the other depends on the recording angle of the microphone system and not on the distance to and ...
The condenser microphone, invented at Western Electric in 1916 by E. C. Wente, [22] is also called a capacitor microphone or electrostatic microphone—capacitors were historically called condensers. The diaphragm acts as one plate of a capacitor, and audio vibrations produce changes in the distance between the plates.
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One such situation would be during a wide shot that forces the boom operator to keep a distance from the speaker that is not close enough to achieve a good signal-to-noise ratio with the microphone. In that instance, a lavalier microphone hidden on the speaker would achieve better signal-to-noise ratio for recording speech because of its proximity.