with 100% Correct Answers
Sound Correct Answer vibrations that can be perceived by the ear
Mircophone Correct Answer converts the acoustical energy that is sound into an
electrical signal that can be delivered to either an analog or a digital device (first step in
capturing a quality recording)
Digital mixer or A/D converter Correct Answer to change analog signal to a digital signal
it will need to pass through an analog to digital converter, commonly referred to as a
__________________________. Most act as a phantom power source for condenser
microphones.
Sample rate and bit rate Correct Answer the two most important factors in the quality of
the new digital audio
Low sampling rate Correct Answer equals approximation
High sampling rate Correct Answer equals smooth
Bit rate Correct Answer represents the amount of information, or detail, that is stored
per unit of time of recording
Microphone type (dynamic or condenser), pickup pattern, size and stands, cost, cables
and connectors Correct Answer variables that you must consider to ensure that the
audio quality is preserved when selecting the microphones that you will use when
reporting
Dynamic microphones Correct Answer ("moving coil" microphones) microphone made
up of a diaphragm, a coil, and a magnet; as acoustical energy hits against the
diaphragm, which is a flat plate at the front of the microphone, it causes the coil that is
attached to it to move back and forth over top of the magnet. The movement of the coil
over top of the magnet creates an electrical signal which travels through the wires within
the microphone and eventually reaches your digital mixer or A/D converter.
Condenser microphones Correct Answer microphone that consists of a front plate
(diaphragm), back plate, and a 48-volt power source; the front and back plate together
create a capacitor. When acoustical energy hits the front plate of the capacitor, the
distance between the front and back plate changes. The gap between these two plates
is electrically charged. This charge is created by either an internal battery source or an
external power source referred to as phantom power.
, Biggest difference between dynamic and condenser microphones Correct Answer the
way by which acoustical energy is transformed into electrical energy, one assisted by an
electrical source and the other by a magnet.
Pickup pattern Correct Answer the set path in which a microphone will intercept sound
Cardioid pickup pattern Correct Answer a heart-shaped pattern which reaches out from
the diaphragm of a microphone, also known as unidirectional, is named after the Greek
word kardioeides meaning heart-shaped.
Super-cardioid and hyper-cardioid patterns Correct Answer have more narrow areas of
sensitivity while rejecting more sound from the back and sides
Omnidirectional pickup pattern Correct Answer pickup pattern that intercepts sound
from all directions from its placement, meaning it captures sound equally from all
directions.
Switches Correct Answer allow you to change the pickup pattern
Capsules Correct Answer on some condenser microphones which can be changed to
switch a microphone's pickup pattern
Dynamic microphones Correct Answer heavier, bulky microphones that are very good
for the spoken word in a very controlled environment. NOT designed for long-range
pickup or varying pickup patterns.
Gooseneck microphone Correct Answer type of condenser microphone commonly used
in digital reporting. They have a solid base which rests on a desk or table, from the
base, a long flexible neck with a narrow condenser microphone attached to the end
extends out towards the speaker--it often times has a button that can toggle the
microphone on and off to keep confidential conversations from appearing on the record
Low-profile boundary microphone Correct Answer type of condenser microphone. They
lay flat on a desk or table and are commonly no more than an inch or two thick. You
must be aware of its location so that it does not get covered up. This type of microphone
tends to pick up a lot of ambient noise--often come in digital recording freelance kits.
Lavalier microphone Correct Answer an extremely small condenser microphone that
attaches directly to the speaker. These microphones are particularly useful when the
environment does not offer an opportunity to place a microphone in front of a speaker.
They are also effective in a courtroom environment where attorneys tend to wander
from place to place. They can be both wired and wireless--requires the use of batteries.
XLR connector Correct Answer most common microphone connector