AVIXA CTS-D: Microphones Exam
Questions With Correct Answers
Types of Microphones - answer✔✔1. Handheld
2. Instrument
3. Lavalier
4. Head
5. Gooseneck
6. Boundary
7. PZM Microphone
8. Shotgun
9.
Handheld Microphones - answer✔✔Used mainly for speech or singing. Since it is constantly
moved about it includes internal shock mounting to reduce handling noise.
Can be held in the hand or mounted on a lectern or stand for hands-free operation.
Lavalier Microphone (lav /lapel) - answer✔✔It is a small microphone designed to be worn either
around the neck or clipped to apparel. Can be attached directly to clothing, such as a necktie or
lapel. Typically an electret type mic.
Head Microphone (Headmic) - answer✔✔Is a microphone that is attached to a small, thin boom
and fitted around the ear Typically an electret type mic
Gooseneck Microphone - answer✔✔Microphones that are used most often on lecterns and
conference tables. The microphone is attached to a flexible or bendable stem, which comes in
varying lengths.
Shock mounts are available to isolate the microphone from table or lectern vibrations
, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/27/2024 12:01 PM
Boundary Microphone - answer✔✔Microphone that relies on reflected sound from a
surrounding surface. A boundary microphone sits directly on a table or surface. They are also
called "surface mount microphones."
they may be subject to papers accidentally being placed over them, laptops fans blowing on
them,
PZM Microphone - answer✔✔
Instrument Mic - answer✔✔
Electret Microphone - answer✔✔A type of condenser microphone. It has prepolarized material
which is applied to the microphone's diaphragm or backplate. This provides a permanent, fixed
charge for one side of the capacitor configuration. This permanent charge eliminates the need for
the higher voltage required for powering the typical condenser microphone, so it can be powered
using small batteries and normal phantom power.
Shotgun Microphones - answer✔✔a long, cylindrical, highly sensitive, unidirectional
microphone used to pick up sound from a great distance.
Microphone Polar Response Types - answer✔✔Only Cool Sam has Bacon
1. Omnidirectional
2. Cardioid
3. Super-Cardioid
4. Hyper-Cardioid
5. Bi-Directional
Omnidirectional Mic - answer✔✔Sound pickup is uniform in all directions., 360 degree
coverage angle, no null angle
Cardioid Microphone (unidirectional) - answer✔✔Pickup is from the front of the microphone
only (one direction) in a specific pattern. It rejects sounds coming from the side but the most
rejection is at the rear of the microphone. Has a heart shaped polar plot.
131 Degree coverage angle
180 Degree null angle