AAERT CER FINAL EVALUATION REVIEW
2026 QUESTIONS WITH SOLUTIONS
GUARANTEED PASS
⩥ 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
,⩥ 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.
⩥ 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.
⩥ Dynamic Microphone. Answer: Very good for spoken word in a very
controlled environment. Not designed for long-range pickup or varying
pickup patterns
2026 QUESTIONS WITH SOLUTIONS
GUARANTEED PASS
⩥ 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
,⩥ 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.
⩥ 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.
⩥ Dynamic Microphone. Answer: Very good for spoken word in a very
controlled environment. Not designed for long-range pickup or varying
pickup patterns
