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"What is a Lavalier Microphone? (More)"

What is a Lavalier Microphone (More)?

A lavalier microphone or lavalier (or lav or lapel mike) is a small electret or dynamic microphone used for television, theatre, and public speaking applications, in order to allow hands-free operation. They are most commonly provided with small clips for attaching to collars, ties, or other clothing. The cord may be hidden by clothes and either run to a radio frequency transmitter in a pocket or clipped to a belt (for mobile work), or directly to the mixer (for stationary applications).

These miniature mics are often supplied with a choice of push-on grilles of differing lengths which provide gentle high-frequency boost by forming a resonant cavity. A peak of around 6 dB at 6-8 kHz is considered beneficial for compensating loss of clarity when chest mounted, and a peak of a few decibels at 10-15 kHz when mounted in the hair above the forehead. This method of boosting high frequencies does not worsen noise performance, as electronic equalization would do.

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