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show production
final exam
120
Other
Professional
06/23/2008

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Cards

Term
what is the reference value for dbu?
Definition
.775
Term
what is the reference value for dbw
Definition
1 watt
Term
what is the reference value for dbv
Definition
1 volt
Term
what is the reference value for dbm
Definition
1 milliwatt
Term
what is the reference value for db spl
Definition
.00002
Term
if you have a 400 watt amplifier and you upgrade to a 1000 watt amplifier, how many db did you gain?
Definition
3.97
Term
how many watts is 24dbw
Definition
251
Term
how many milliwatts is 12dbm
Definition
15.84
Term
if you have an amplifier that outputs 36 volts when you input 1.4 volts, how much gain does it have
Definition
28.20
Term
what is the db difference between 1 volt and 11 volts
Definition
20.83
Term
if you have a piece of gear whose max output is 23dbv, what would the voltage be
Definition
14.1
Term
how many volts is 17 dbu
Definition
5.48
Term
how many pascals is 98db spl
Definition
1.6
Term
if you have a piece of gear that outputs 8.2 volts, how many dbv is that
Definition
18.27
Term
if you have a piece of gear that outputs 7.6 volts, how many dbu is that
Definition
19.83
Term
what is the ohms law symbol for current
Definition
I
Term
what is the ohms law symbol for voltage
Definition
V or E
Term
what is the ohms law symbol for resistance
Definition
R
Term
what is the ohms law symbol for power
Definition
W
Term
in a singe phase power system, how many conductors are there, and what are their color codes
Definition
4. red, black, white, green
Term
in a 3 phase Y power system, how many conductors are there and what are their color codes
Definition
5. red, black, blue, white, green
Term
in a 3 phase power system, each hot leg is ________ degrees out of phase with the other hot legs
Definition
120 degrees
Term
what is the name of the industry standard connector used to tie your power distribution rack into a venue's disconnect
Definition
camlock
Term
what is the tie in sequence when connecting camlocks to your power distro
Definition
ground, neutral, hot, hot, hot
Term
what are the two types of over current protection devices used in audio equipment
Definition
fuse, circuit breaker
Term
once power is safely tied in, you are ready to start doing what
Definition
metering voltage
Term
on a 3 phase Y power system, voltage between a hot leg and ground should be
Definition
120 V
Term
on a 3 phase Y power system, voltage between 2 hot legs should be
Definition
208
Term
what is the disconnect sequence when unhooking your power distro at the end of a show
Definition
hot, hot, hot, neutral, ground
Term
name two types of graphs commonly seen in specification sheets
Definition
frequency response, polar
Term
in order to maintain proper voltage transfer between pieces of equipment, your input impedance must be at least 10 times ______ than your output
Definition
greater
Term
define "audio distortion"
Definition
anything that alters a pure input signal
Term
define musical "dynamic range"
Definition
difference between loudest and quietest passage of music in a performance
Term
define electronic "dynamic range"
Definition
difference between max output level before clipping and noise floor
Term
most amplifiers operate in two different modes, what are they
Definition
dual stereo, bridged mono
Term
name 3 types of internal wiring for drivers in a speaker cabinet
Definition
series, parallel, series parallel
Term
what are audio horns used for
Definition
control dispursion patterns of drivers
Term
name the 5 most typical polar patterns for all microphones
Definition
omni, bi-directional, cardioid, hyper cardioid, super cardioid
Term
when using a cardioid vocal microphone, your monitor wedge should be oriented where in relation to the mic
Definition
180 degrees off axis
Term
name 4 functional uses for different microphones
Definition
hand held, stand mount, parabolic, lavalier
Term
define the term "transient response"
Definition
mic ability to react quickly
Term
define the term "proximity effect"
Definition
bass increases as sound source gets closer
Term
many vocal microphones have a rise in their hight frequency response, why
Definition
vocal polarity
Term
name 2 companies that manufacture touring splitter systems
Definition
world wind, ramtech
Term
how many times can an analog splitter split your input signal before causing signal degradation and impedance problems
Definition
3
Term
name 4 types of audio signal splitting
Definition
parallel, transformer isolated, active, digital
Term
name 4 major components of an analog splitter system
Definition
subsnakes, main splitter rack, multipin cables, multipin fanouts
Term
name 3 companies that manufacture multipin connectors
Definition
ramtech, whirlwind, Edac
Term
on a touring spitter system, the console that is to provide phantom power to the microphones must be connected to which split
Definition
parallel split
Term
what type of digital splitter is used at FSL1
Definition
worldwind E-snake
Term
what is the name of the underlying network technology that allows the digital splitter at FSL1 to operate effectively
Definition
cobranet
Term
name two splitter related items often used in permanent instal facilities
Definition
wall mount, floor pocket
Term
name 4 audio console manufacturers
Definition
yamaha, midas, sound craft, allen & heath
Term
what does the term "console frame" refer to
Definition
number of input channels
Term
name two things you could use a direct output for
Definition
fx sends, recording feeds
Term
how many EQ filters do most professional consoles have on each channel
Definition
5
Term
(true/false) aux sends take copies of input channels and matrix sends take copies of output busses
Definition
true
Term
(true/false) aux sends can be pre or post the stereo buss fader
Definition
false
Term
define the term "audio subgroup"
Definition
post fader unity gain send
Term
define the term "aux send"
Definition
pre or post fader variable send
Term
(true/false) matrix sends can be set to pre or post fader
Definition
true
Term
name 3 practical uses for the matrix
Definition
delay stacks, recording device feeds, ALD mixes
Term
what does LCR stand for
Definition
left, center, right
Term
what does a mute group do
Definition
mutes multi-channels with 1 button
Term
most digital console have their inputs and outputs in external racks called the...
Definition
FOH racks
Term
define the term "soft patching"
Definition
ability to sign any XLR input to any fader on the console
Term
define the term "virtual soundcheck"
Definition
sound check without the band
Term
name 3 ways that you can store the settings on a digital console (types of media)
Definition
usb key, compact flash card, internal hard drive
Term
name two features that we are going to see coming out on future digital consoles
Definition
system processors onboard, multi operator environment
Term
what does dBFS stand for
Definition
decibal full scale
Term
what does the fader flip function allow an engineer to do
Definition
mix monitor from fader
Term
name 3 things you can with a user defined key on a digital console
Definition
tap tempo, page changing, graphic EQ recall
Term
name 5 parameters of a compressor
Definition
threshold, ratio, attack, release or decay, output gain
Term
what two signals does a compressor graph compare
Definition
input levels vs output levels
Term
where in the signal chain are limiters used most often in sound reinforcement
Definition
bandpass outputs of crossover
Term
what are the 5 parameters of a gate
Definition
threshold, range or depth, attack, hold, release
Term
what does the range (or depth) control do on a gate
Definition
sets amount of attinuation of audio signal when gate is fully closed
Term
define the term "RT60"
Definition
amount of time it takes for a signal to decay 60db once signal has stopped
Term
name the 4 primary ways to create artifical reverberation
Definition
digital reverb, spring reverb, plate reverb, reverb chamber
Term
name 5 types of EQ filters found on audio consoles and system processors
Definition
high pass, low pass, shelving, parametric, graphic
Term
what is the one user definable parameter on a high pass filter
Definition
frequency
Term
list the slope in db per octave for the following orders
Definition
1st order 6
2nd order 12
3rd order 18
4th order 24
Term
what are the two user definable parameters of a shelving filter
Definition
frequency, gain
Term
what are the three user definable parameters of a parametric filter
Definition
center frequency, bandwidth, level
Term
define the term octave
Definition
half or doubling of a frequency
Term
octaves are percieved by our ears as having equal ______
Definition
pitch
Term
graphic EQ filters have a fixed bandwidth of _________
Definition
1/3
Term
what are the three primary shapes of crossover filters
Definition
linkwitz-riley, butterworth, bessel
Term
if i am using a stereo 4-way system, how many inputs and outputs does my crossover need to have
Definition
2 inputs 8 outputs
Term
rigging is the process of _______
Definition
hanging a point
Term
name the 5 primary tools a rigger uses to "hang a point"
Definition
sling, shackles, rings, hooks, rope
Term
why do riggers carry so much rope around
Definition
pull the rigging assembly to working height
Term
what are burlap bags used for when rigging a point
Definition
cut down friction between I beams and sling
Term
who mandates that riggers wear Fall protection systems when working above a height of 6ft.
Definition
OSHA
Term
_______ are the most common types of load bearing support in arenas
Definition
I beams
Term
what are the 3 most common types of hitches used to hang a rigging point from an I beam
Definition
basket, direct, choker
Term
what is a center cluster of speakers typically used for
Definition
extra reinforcement to primary vocalist or soloist
Term
line array cabinets are controlled in zones of ____ boxes each
Definition
4
Term
what device could be used to connect to NL4s or NL8s together
Definition
barrels
Term
if i wire two 8ohm drivers in parallel, what is the load
Definition
4ohms
Term
if i wire two 8ohm drivers in series, what is the load
Definition
16ohms
Term
if i wire four 8ohm drivers in series-parallel, what is the load
Definition
8 ohms
Term
name the three "categories" of video production, as outlined in class
Definition
live, live to tape, taped for post production
Term
what does IMAG stand for? provide an example of where you might see this style of video production
Definition
Image magnification, corporate speaking/live events
Term
what does NTSC stand for?
Definition
national television systems committee
Term
what is the resolution and frame rate for NTSC color video
Definition
525 lines of resolution, 29.97 frames per second
Term
with regards to the television signal, what does chrominance refer to
Definition
color
Term
with regards to the television signal, what does chrominance refer to
Definition
color
Term
what does CCD stand for? what does a CCD do
Definition
charges coupled device, transduce light into electrical signal energy
Term
name the three principle parts of a video camera
Definition
lens, camera body, view finder
Term
name the four primary types of transitions in video
Definition
cut, dissolve, wipe, key
Term
what specialized video monitor displays the luminance and horizontal sync information
Definition
waveform monitor
Term
what specialized video monitor displays chrominance information along with the sub carrier
Definition
vector scope
Term
name 5 items you'd find in an audio engineer's tool kit
Definition
audio adapter kit, volt meter, spl meter, cable tester, soldering iron
Term
why don't we use very attack times on drum compression
Definition
you want the internal impulse to pass through compression
Term
why do you want all of your FX returns to be assigned to a VCA or a mute group
Definition
so you can mute them all between songs
Term
name 2 benefits of driving your subwoofer off an auxiliary
Definition
overall level control, a person can control
Term
define the term "power lock" as it relates to wireless microphones and IEM's
Definition
software lockout off the power switch
Term
(true/false) you should always put your cue wedge on a road case as close to your ear as possible
Definition
false
Term
(true/false) there is little to no potential for feedback when your artists are using IEM's
Definition
true
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