AAERT CER EXAM 2025
QUESTIONS AND ANSWERS
Methods of audio recording - ....ANSWER ...-Analog and digital
Microphone - ....ANSWER ...-Converts acoustical energy that is sound into
electrical signal that can be delivered to either an analog or digital device
Path of digital audio - ....ANSWER ...-To change the analog signal to a
digital signal it will need to pass through an analog to digital
converter (digital mixer or A/D converter)
Sample rate - ....ANSWER ...-Number of samples taken each second when
recording sound. (44.1 kHz, 48 kHz, et cetera)
Bit rate - ....ANSWER ...-the number of bits transferred or received per unit
of time (usually 16 or 24 bits)
Low sampling rate - ....ANSWER ...-Approximation
High sampling rate - ....ANSWER ...-Smooth
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,Digital mixer or A/D converter - ....ANSWER ...-The digital mixer, or A/D
converter, will output the signal through one of a variety of connections such as
USB, FireWire (IEEE 1394), serial, local computer bus, or Ethernet.
Dynamic Microphone - ....ANSWER ...-(Moving coil) - made up of
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 the 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 Microphone - ....ANSWER ...-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.
Should you use microphones with batteries? - ....ANSWER ...-No. If a
battery would die during use, you could have a gap in your recording, and you
would need to interrupt the event you are reporting to fix this problem.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, Digital mixers and A/D converters act as - ....ANSWER ...-Phantom power
source for condenser microphones
Biggest difference between dynamic and condenser microphones -
....ANSWER ...-The way by which acoustical energy is transformed into
electrical energy, one assisted by an electrical source and the other by a magnet.
Both are capable of facilitating a quality audio recording and are recommended for
use in the field of digital reporting.
Pickup pattern - ....ANSWER ...-Set path in which a microphone will
intercept sound
Cardioid pickup pattern - ....ANSWER ...-Unidirectional - heart-shaped
pattern which reaches out from the diaphragm of a microphone. Beneficial for
single voice located in front of mic while rejecting additional ambient room sound
from behind the mic and lower sensitivity on the sides
Omnidirectional pickup pattern - ....ANSWER ...-Intercepts sound from all
directions from its placement, meaning it captures sound equally from all
directions. Beneficial for capturing multiple voices using only one microphone or
when you have more speakers than available recording channels. Use carefully to
avoid noisy recordings or voices covering one another if speaking simultaneously.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
QUESTIONS AND ANSWERS
Methods of audio recording - ....ANSWER ...-Analog and digital
Microphone - ....ANSWER ...-Converts acoustical energy that is sound into
electrical signal that can be delivered to either an analog or digital device
Path of digital audio - ....ANSWER ...-To change the analog signal to a
digital signal it will need to pass through an analog to digital
converter (digital mixer or A/D converter)
Sample rate - ....ANSWER ...-Number of samples taken each second when
recording sound. (44.1 kHz, 48 kHz, et cetera)
Bit rate - ....ANSWER ...-the number of bits transferred or received per unit
of time (usually 16 or 24 bits)
Low sampling rate - ....ANSWER ...-Approximation
High sampling rate - ....ANSWER ...-Smooth
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,Digital mixer or A/D converter - ....ANSWER ...-The digital mixer, or A/D
converter, will output the signal through one of a variety of connections such as
USB, FireWire (IEEE 1394), serial, local computer bus, or Ethernet.
Dynamic Microphone - ....ANSWER ...-(Moving coil) - made up of
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 the 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 Microphone - ....ANSWER ...-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.
Should you use microphones with batteries? - ....ANSWER ...-No. If a
battery would die during use, you could have a gap in your recording, and you
would need to interrupt the event you are reporting to fix this problem.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, Digital mixers and A/D converters act as - ....ANSWER ...-Phantom power
source for condenser microphones
Biggest difference between dynamic and condenser microphones -
....ANSWER ...-The way by which acoustical energy is transformed into
electrical energy, one assisted by an electrical source and the other by a magnet.
Both are capable of facilitating a quality audio recording and are recommended for
use in the field of digital reporting.
Pickup pattern - ....ANSWER ...-Set path in which a microphone will
intercept sound
Cardioid pickup pattern - ....ANSWER ...-Unidirectional - heart-shaped
pattern which reaches out from the diaphragm of a microphone. Beneficial for
single voice located in front of mic while rejecting additional ambient room sound
from behind the mic and lower sensitivity on the sides
Omnidirectional pickup pattern - ....ANSWER ...-Intercepts sound from all
directions from its placement, meaning it captures sound equally from all
directions. Beneficial for capturing multiple voices using only one microphone or
when you have more speakers than available recording channels. Use carefully to
avoid noisy recordings or voices covering one another if speaking simultaneously.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
