AET 2560 Final Exam with all Correct & 100% Verified
Answers |Actual Complete Exam |Already Graded A+
Personal PA System ✔Correct Answer-Super small, moveable, anything from a bullhorn to a small
single speaker w/ two inputs
Fixed Install PA System ✔Correct Answer-think church, expensive but easy set up, difficult to
repair/update system but equipment lasts longer because it is permanently installed out of the way
Distributed PA System ✔Correct Answer-Think Cruise Ship, can be split to have different outputs in
different areas, but also have a master that goes to every output, connect into multiple rooms
Stage Plot ✔Correct Answer-Diagram, drawn to scale, indicating placement on stage of equipment,
monitors, microphones, etc.
Input List ✔Correct Answer-Detailed list of where each input (mics, amps, DIs, etc.) should be
patched in order to show up correctly on the sound boards.
Haas Effect ✔Correct Answer-reflections arriving within 25-35 milliseconds are heard as a single
sound; delay is used to localize sound; beyond 25-35 ms, a discrete echo is heard
can sometimes be heard from one ear to the next, affects stereo perception
Headroom ✔Correct Answer-the dynamic range between the Standard Operating Level (SOL) and
the point of distortion (max level)
Distortion ✔Correct Answer-any discrepancy between the original waveform and its replication,
happens when clipping begins
Crest Factor ✔Correct Answer-the measure of alternating current like a waveform as the ratio of
the peak to average (RMS)
Harmonic Distortion ✔Correct Answer--Nonlinear distortion caused when an audio system
introduces harmonics to a signal at the output that were not present at the input.
-not always bad, often added to guitars as a stylistic effect
Gain Before Feedback ✔Correct Answer-The amount you can increase the gain level of a signal
before your system starts to feedback
Pink Noise ✔Correct Answer-a white noise generated to match the frequency response of human
hearing
equal level by octave
What frequency bands are illegal to operate in? ✔Correct Answer-600-699 MHz
700-799 MHz
What is Squelch? ✔Correct Answer-a tool that prevents a wireless receiver from picking up rogue
signals when the intended signal is not being used. (think like a gate for a wireless receiver)
, What is Diversity Receiving? ✔Correct Answer-When a wireless system uses multiple antennae to
prevent dropout. If the signal going to one antenna is too weak, the other antenna will be used to
receive the signal.
What is VHF? ✔Correct Answer-Very High Frequency (30-300MHz)
What is UHF? ✔Correct Answer-Ultra High Frequency (300MHz-3 GHz)
Where should broadcast antennas be placed? ✔Correct Answer-8ft in the air or higher, close to
the stage, each antenna on a different axis
What is Limiting? ✔Correct Answer-Limiting is a hard stop on a system to prevent damage to
speakers or amplifiers.
What is Compression? ✔Correct Answer-Compression is an audio tool used to stylistically change
the dynamic range of a source.
What is the side-chain input on a compressor? ✔Correct Answer-Side-chain allows for the
compression to be triggered by another signal.
What are some common uses for side-chain compression? ✔Correct Answer-putting music and a
dj's mic through a compressor so that when the dj is talking the music will compress and be softer,
then resume at a normal level when they are done talking.
What is a gate? ✔Correct Answer-Tool used to allow sounds above a certain threshold to be heard
while silencing anything below that level. This tool is used to prevent bleed from other instruments
onstage, especially for drums.
What is a downward expander? ✔Correct Answer-A downward expander decreases gain below the
threshold, it is used to smooth out the gain on a particular track, and widens the dynamic range
What is the advantage of using a stereo input channel over a reverb return? ✔Correct Answer-
Using a stereo track gives you more processing control on the return (panning, eq, compression) and
allows the FX return to be used for something else like a monitor
What are the two primary types of EQ? ✔Correct Answer-Parametric
Graphic
What is a Graphic EQ typically used for? ✔Correct Answer-Moving specific frequencies
What is a Parametric EQ typically used for? ✔Correct Answer-shaping instruments/vocals, more
artistic uses, ringing out wedge
How many bands does a typical 1/3 octave graphic EQ have? ✔Correct Answer-31 bands
What is an NL2 cable? ✔Correct Answer-A speaker cable with 1+ and 1- poles. Can be used for 1
signal.
What is an NL4 cable? ✔Correct Answer-A speaker cable with 2+ and 2- poles. Can be used for 2
signals.
Answers |Actual Complete Exam |Already Graded A+
Personal PA System ✔Correct Answer-Super small, moveable, anything from a bullhorn to a small
single speaker w/ two inputs
Fixed Install PA System ✔Correct Answer-think church, expensive but easy set up, difficult to
repair/update system but equipment lasts longer because it is permanently installed out of the way
Distributed PA System ✔Correct Answer-Think Cruise Ship, can be split to have different outputs in
different areas, but also have a master that goes to every output, connect into multiple rooms
Stage Plot ✔Correct Answer-Diagram, drawn to scale, indicating placement on stage of equipment,
monitors, microphones, etc.
Input List ✔Correct Answer-Detailed list of where each input (mics, amps, DIs, etc.) should be
patched in order to show up correctly on the sound boards.
Haas Effect ✔Correct Answer-reflections arriving within 25-35 milliseconds are heard as a single
sound; delay is used to localize sound; beyond 25-35 ms, a discrete echo is heard
can sometimes be heard from one ear to the next, affects stereo perception
Headroom ✔Correct Answer-the dynamic range between the Standard Operating Level (SOL) and
the point of distortion (max level)
Distortion ✔Correct Answer-any discrepancy between the original waveform and its replication,
happens when clipping begins
Crest Factor ✔Correct Answer-the measure of alternating current like a waveform as the ratio of
the peak to average (RMS)
Harmonic Distortion ✔Correct Answer--Nonlinear distortion caused when an audio system
introduces harmonics to a signal at the output that were not present at the input.
-not always bad, often added to guitars as a stylistic effect
Gain Before Feedback ✔Correct Answer-The amount you can increase the gain level of a signal
before your system starts to feedback
Pink Noise ✔Correct Answer-a white noise generated to match the frequency response of human
hearing
equal level by octave
What frequency bands are illegal to operate in? ✔Correct Answer-600-699 MHz
700-799 MHz
What is Squelch? ✔Correct Answer-a tool that prevents a wireless receiver from picking up rogue
signals when the intended signal is not being used. (think like a gate for a wireless receiver)
, What is Diversity Receiving? ✔Correct Answer-When a wireless system uses multiple antennae to
prevent dropout. If the signal going to one antenna is too weak, the other antenna will be used to
receive the signal.
What is VHF? ✔Correct Answer-Very High Frequency (30-300MHz)
What is UHF? ✔Correct Answer-Ultra High Frequency (300MHz-3 GHz)
Where should broadcast antennas be placed? ✔Correct Answer-8ft in the air or higher, close to
the stage, each antenna on a different axis
What is Limiting? ✔Correct Answer-Limiting is a hard stop on a system to prevent damage to
speakers or amplifiers.
What is Compression? ✔Correct Answer-Compression is an audio tool used to stylistically change
the dynamic range of a source.
What is the side-chain input on a compressor? ✔Correct Answer-Side-chain allows for the
compression to be triggered by another signal.
What are some common uses for side-chain compression? ✔Correct Answer-putting music and a
dj's mic through a compressor so that when the dj is talking the music will compress and be softer,
then resume at a normal level when they are done talking.
What is a gate? ✔Correct Answer-Tool used to allow sounds above a certain threshold to be heard
while silencing anything below that level. This tool is used to prevent bleed from other instruments
onstage, especially for drums.
What is a downward expander? ✔Correct Answer-A downward expander decreases gain below the
threshold, it is used to smooth out the gain on a particular track, and widens the dynamic range
What is the advantage of using a stereo input channel over a reverb return? ✔Correct Answer-
Using a stereo track gives you more processing control on the return (panning, eq, compression) and
allows the FX return to be used for something else like a monitor
What are the two primary types of EQ? ✔Correct Answer-Parametric
Graphic
What is a Graphic EQ typically used for? ✔Correct Answer-Moving specific frequencies
What is a Parametric EQ typically used for? ✔Correct Answer-shaping instruments/vocals, more
artistic uses, ringing out wedge
How many bands does a typical 1/3 octave graphic EQ have? ✔Correct Answer-31 bands
What is an NL2 cable? ✔Correct Answer-A speaker cable with 1+ and 1- poles. Can be used for 1
signal.
What is an NL4 cable? ✔Correct Answer-A speaker cable with 2+ and 2- poles. Can be used for 2
signals.
