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104 Cards in this Set
- Front
- Back
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What is the reference value for dBU?
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.775v
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What is the reference value for dB SPL?
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.00002 Pascals
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What is the symbol for Power?
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P or W
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In a single phase system, how many conductors are there and what are their colors?
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4
Green White Black Red |
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In a 3 phase Y power system, how many conductors are there and what are their colors codes?
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5
Green White Black Red Blue |
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In a 3 phase Y power systems, each hot leg is ____ degrees out of phase with the other hot legs.
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120
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What is the name of the industry standard connector used to tie in your power distro rack into a venues disconnect?
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Camlock
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What is the tie in sequence when connecting camlocks to your power distro?
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Green Neutral, hot, hot, hot
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What are the two types of over current protection devices used in audio equipment?
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Circuit breaker
Fuse |
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Once power is safely tied in, you are ready to start doing what?
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Metering voltages
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On a 3 phase Y power system, the voltage between a hot leg and ground should be?
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120v
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On a 3 phase Y power system, voltage between 2 hot llegs should be?
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208v
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What is the disconnect sequence when unhooking you power distro at the end of a show?
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Turn blade to off
Disconnect hot hot hot disconnect ground |
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Name two types of graphs commonly seen in spec. sheets?
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Polar response
frequency response |
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In order to maintain proper voltage transfer between pieces of equipment, your input impedance must be at least 10 times ______ that your output impendance.
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Greater
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define "Audio Distortion"
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Any that alters a pure input signal
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Define Musical Dynamic range
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The difference between the loudest nd quietest passage of a musical performance
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Define Electronic dynamic range
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the different between the max output level and the noise floor
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most amplifiers operate in two different modes, what are they?
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dual channel stereo
bridge mono |
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Name 3 types of internal wiring for drivers in a speaker cainet?
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series
series parallel parallel |
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what are audio horns used for?
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Use to control the dispersion pattern of drivers
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Name the 5 most typical polar patterns for all microphones
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omnidirectional
bidirectional cardioid supercardioid hypercardioid |
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when using a cardioid vocal microphone, your monitor wedge should be oriented where in relation to the mic?
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180 off axis
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Name 4 functional uses for different microphones
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Handheld
parabolic stan mount lavalier |
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Dfine the term "transient response"
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the mics ability to react quickly to changes in ai pressure
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Define the term proximity effect
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Inscrease in bass response as a mic is moved closer to the sound source
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Many vocal mic, have a ride in their high frequency response, why?
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Vocal Clarity
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Name 2 companies that manufacture touring splitter systems?
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Whirlwind
Ramtech |
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How many times can an analog splitter split our input signal before causing signal degradation and impedence problems
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3
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Name 4 types of audio signal splitting
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parallel
transformer isolate active digital |
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name the 4 major components of an analog splitter system
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Main Splitter box
subsnake multipin cables multipin xlr connectors |
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Name 3 companies that manu. multipin connectors
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EDAC
whirlwind ramtech |
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on a touring splitter system, the colsoe that i to provide phantom power to the microphonnes muct be connects to which split?
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Parallel
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What types of digital splitter is used in FSL1
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Whirlwind Esnake
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What is the name of the underlying network technology that allows the digital splitter at FSL1 to operate?
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Cobranet
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Name two splitter related items often used in permant install facilities
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Wall plate
floor pocket |
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name 4 audio consoles manufacturers
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yamaha
midas soundcraft allen and heath |
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What does the term Console Fram refer to
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number of input channels
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Name two things you could use a direct output for
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multi-track recordings
FX sounds |
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Have many EQ filters do most professional consoles have on each channel
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5
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(True/False)
Aux sends take copies of input channes and matric sends take copies of output channes |
true
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(True/false)
Aux sends can be pre of post the stereo bus fader |
False
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Define the term Audio Subgroup
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Post fader untiy gain send
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Define the term Aux Send
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pre or post fader variable send
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(true/false)
Matrix sends can be set to pre or post fader |
true
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Name 3 practical uses fr the matrix
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delay stacks
recording feeds ADL |
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What does LCR stand for
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left right center
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what does a mute group do?
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Allows you to mute more then one channel at a time by pressing one button
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most digital consoles have their inputs and outputs in external racks called the
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FOH and stage rack
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Define the term Soft Patching
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the ability to assgin any XLR input to any fader on the console
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define the term virtual soundchecking
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soundchecking with multitrack records instead of band
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name 3 ways that you can store the settings on a digital console
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USB Key
nternal harddrive Compact flash card |
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name two features that we are going to see coming out on future digital consoles
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System processors on board
amplifier monitoring on board |
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What does DBFS stand for
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Decibel Full scale
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what does the fader flip function allow an engineer to do
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mix monitor from faders instead of knobs
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name 3 things you can do with a user defined key on a digital console
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tap tempo
page changes graphc eq recalls |
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name the 5 parameters of a compressor
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threshold
attack ratio decay output gain |
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what two signal s does a compressor graph compare
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input level vs output level
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where in the signal flow chain are limiters used most often in sound reinforcement
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bass pass outputs of the crossover
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what are the 5 parameters of a gate
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threshold
attack ratios hold release |
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what does the range of depth do on a gate
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set s the amount of attenuation of the audio signal when the gate is fully closed
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define the term RT60
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amount of time it takes for a signal to decay by 60 db once the signal has stopped
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name the 4 primary ways to create artificial reverb
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plate reverb
rever chamber digital reverd spring reverb |
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name the 5 tpes of eq filters on audio consoles and system processors
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high pass
low pass shelving parametric graphic |
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what is the one user definabe parameter on a high pass filter
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to cut out unwanted low frequenncy information in an audio signal
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List the slope in DB per ocave for the following orders:
1st 2nd 3rd 4th |
6dB
12dB 18dB 24dB |
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What are two user definable parameters of a shevling filter
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gain
frequency |
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What are the two use definable parameters of a Parametric filter
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center frequency
Level Bandwith |
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Define the term Octave
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Halfing or doubling a frequency
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Ocaves are perceived by the ears as having equal_____
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pitch
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Graphic EQ filters have a fixed bandwith of ____ of an octave
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1/3
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What are the 3 primary shapes of crossover filters
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Linkwitz-Riley
Bessel Butterworth |
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If I am using a stereo 4 way system, how many inputs and outputs does my crossover need to have?
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2 inputs
8 outputs |
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Rigging is the process of _____
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hanging a point
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Name the 5 primary tool a rigger uses to "hang a point"
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Sling
Shackle Hooks Rope Chain Motor |
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Why do riggers carry so much rope around?
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To pull the rigging equipment
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What are burlap bags used for when rigging a point
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Used to cut down friction between the i-beam and the sling
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Who mandates that riggers wear fall protection systems when working above a height of 6ft
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OSHA
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______ are the most common types of load bearing support in arenas
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I-Beam
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What are the 3 most common tpes of Hitches used to ahng a riging point from an I-beam?
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Backet hitch
Direct Hitch Choker hitch |
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What is a Center Cluster of speakers typically used for?
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To add extra reinforcement for a primary vocalist or soloist
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Line array Cabinets are controlled in zones of ___ boxes each
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4
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What device could be used to connect NL4s and NL8s together
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NL4 Barrel
NL8 Barrel |
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If I wire two 8 ohm drivers in parallel what is the load?
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4ohms
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If I wire two 8 ohm drivers in series, what is the load?
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18ohms
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If I wire two 8 ohm drivers in series-parallel, what is the load?
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8ohms
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Name the three categories of video production, as outlined in class.
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Live
Live on tape Taped for post production |
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What does iMAG stand for? Provide an example of where you might see this style of video production.
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Image Magnification
Used during Live events so the people far from the stage can still see the talent |
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What does NTSC stand for?
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National Television Systems Committee
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What is the resolution and frame rate for NTSC color video
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525 Lines
29.97 fps |
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With regards to the television signal, what does luminance stand for?
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Brightness
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With regards to the television signal, what does chominance refer to?
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Color
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What does CCD stand for? What does CCD do?
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Charged Coupled Device
transduces light energy into electrical energy |
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Name the three principle parts of a video camera
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Lens
Camera body View Finder |
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Name the four prmary types of transitions in video
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Cut
Wipe Disolve Key |
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What specialized video mi=noitor displays the luminance and horizontal synce information contrained in the video signal
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Waveform
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What specialized video monitor displays chominance information along with the sub carrier?
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Vectorscope
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Name 5 items youd find in an audio engineers toolkit
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Audio adapter kit
DMM SPL Meter Console tape Cable tester |
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Why dont we used very fast attack times on drum compression?
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you cant hear the initial impulse
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Why do you want all of your fx returns to be assigned to a VCA or mute group?
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So you can mute them in between songs
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Name 2 benefits of driving your subwoofer off of an auxilary
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More control
overal level control over subs independent of the main l/r system |
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Define the term "power lock" as it relates to wireless mics and IEMS
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A software lockout of the power switch
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(true/false)
You should always put your cue wedge on a road case as close to your ear as possible |
false
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(true/false)there is little to no potential or feedback when your artists are using IEMS
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true
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