Specifications

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GLOSSARY
field surrounded by a coil. Applications
include miniature microphones for hearing
aids and guitar pickups.
4. Dynamic microphone A conductor (coil
attached to diaphragm, ribbon) flexibly
suspended in the field of a fixed magnet is
vibrated by sound waves. This induces in
the conductor an AC voltage that varies in
step with the sound waves.
5. Electrostatic microphone A flexible
diaphragm and a fixed electrode together
form a two-plate air capacitor whose
capacitance varies in step with the sound
waves that vibrate the diaphragm. Also
known as “capacitor microphone” or “con-
denser microphone”. In electret micro-
phones one of the electrodes carries a per-
manent charge.
UHF
Ultra High Frequency
VHF
Very High Frequency
Vibrational Noise
In addition to air-borne sound, microphones
also pick up mechanical noise such as impact,
footfall, handling, or cable noise. Such unwant-
ed noise can be reduced by special design fea-
tures (transducer shock mount, compensation
systems, bass cut)
Vocal Microphone
A microphone specifically designed for vocal
use on stage. It incorporates a pop screen, a
transducer shock mount to reduce handling
and impact noise, and is particularly rugged so
it will survive the occasional drop from the
stand.
Many vocal microphones have an upper
midrange (3 to 8 kHz) peak to make the voice
cut through. In the studio, vocals are ideally
recorded from 30 cm (1 ft.) or even farther, usu-
ally with condenser microphones.
Wavelength
The distance between two consecutive peaks
(or troughs) of a sine wave.
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