Sps Midterm

Front 1

What three things does a simple electrical circuit consist of?

Back 1

voltage source, conductor, load

Front 2

What is the frequency (hz) of AC power generated in the US?

Back 2

60 hz

Front 3

What is the Ohm's Law symbol for Current and what is its unit of measure

Back 3

I-Amps

Front 4

What is the Ohm's Law symbol for Electromotive Force and what is its unit of measure?

Back 4

V - Volts

Front 5

What is the Ohm's Law symbol for resistance and what is its unit of measure?

Back 5

R - Ohms

Front 6

What is the Ohm's Law symbol for Power and what is its unit of measure?

Back 6

P-Watts

Front 7

All power plants worldwide generate ______ phases of power

Back 7

3

Front 8

In a 3 phase Y power system, how many conductors are there and what are their color codes?

Back 8

5 Green, White, Red, Black, Blue

Front 9

In a 3 phase Delta power system, how many conductors are there and what are their color codes?

Back 9

5- Green, White, Red, Black, Orange

Front 10

What is the tie in sequence when connecting camlocks to your power distro?

Back 10

power disconnect off/Ground/Nuetral / 3 Hots

Front 11

Once power is safely tied in, you are ready to start doing what?

Back 11

metering voltages

Front 12

On a 3 phase Y power system, voltage between a hot leg and ground should be?

Back 12

120v

Front 13

On a 3 phase Y system, voltage between 2 hot legs should be?

Back 13

208v

Front 14

On a 3 phase Y system, voltage between ground and neutral should be?

Back 14

0

Front 15

Name 3 manufacturers of power distribution racks for the entertainment Industry?

Back 15

Motion Labs,Ramtech, applied electronics, ETC

Front 16

What are two types of over current protection devices used in audio equipment?

Back 16

Fuse, Circuit Breaker

Front 17

In order to maintain proper voltage transfer between pieces of equipment, your impedance must be at least 10 times _________ than your output impedance

Back 17

Greater

Front 18

What is the typical input impedance of a professional audio console?

Back 18

2000 Ohms

Front 19

What is the typical output impedance of a professional audio console?

Back 19

50 Ohms

Front 20

What does THD stand for?

Back 20

Total Harmonic Distortion

Front 21

What does "IMD" stand for?

Back 21

InterModulation Distortion

Front 22

Define electronic "Dynamic Range"

Back 22

The difference between the maximum output level and the noise floor

Front 23

Name two types of amplifier input connectors

Back 23

XLR, TRS, Phoenix

Front 24

Name two types of amplifier output connectors

Back 24

NL-2/NL-4/Banana

Front 25

Most amplifiers operate in two different modes, what are they?

Back 25

Stereo/Bridged

Front 26

Name 3 types of internal wiring for drivers in a speaker cabinet?

Back 26

Series/Parallel/Series-Parallel

Front 27

What two factors determine the impedance of a loudspeaker driver?

Back 27

Length and gauge of voice coil

Front 28

What are audio horns used for?

Back 28

Control coverage pattern of a driver on the horizontal and vertical plane

Front 29

What are the three primary components of a Dynamic Microphone?

Back 29

Coil, magnet, Diaphragm

Front 30

Name the 5 Most typical polar patterns for all microphones

Back 30

Cardioid, Hyper-Cardioid, Super Cardioid, Omnidirectional, Bidirectional

Front 31

When using a cardioid vocal microphone, your monitor wedge should be orientated where in relation to the mic?

Back 31

180 Degrees off axis

Front 32

(True/False) In a perfect world, every microphone would have perfectly flat frequency response.

Back 32

False

Front 33

Name two settings that a condenser microphone will often have on the mic

Back 33

Pad, HPF, Polar Pattern Select

Front 34

(True/False) Most professional microphones have an output impedance of between 50 Ohms and 250 Ohms

Back 34

True

Front 35

Name 3 microphone accessories often used in sound reinforcement

Back 35

Shock Mount, Wind Screen, Stereo Mounting Bar

Front 36

Name 4 stereo mic Techniques

Back 36

XY, AB, NOS, ORTF, BiNeural

Front 37

Name 2 companies that manufacture touring splitter systems

Back 37

Whirlwind, Ramtech, Radial

Front 38

How many times can an analog splitter split your input signal before causing signal degradation and impedance problems?

Back 38

3

Front 39

Name 4 types of audio signal splitting

Back 39

Parallel, Transformer-Isolated, Active Digital

Front 40

Which two forms of signal splitting are considered to be "passive" in nature?

Back 40

Parallel, Transformer-Isolated

Front 41

Name the 4 major components of an analog splitter system

Back 41

Subsnake, Splitter Rack Multipin Cable, Fanout

Front 42

Name 3 things that and audio Transformer can do

Back 42

Convert Unbalanced to Balanced, Increase or Decrease impedance of a circuit, provide electrical isolation

Front 43

On a touring splitter system, the console that is to provide phantom power to the microphones must be connected to which split?

Back 43

Parallel split

Front 44

Name three problems with analog splitter systems

Back 44

Heavy Copper Cabling, Electromagnetic Interference, Ground Loops

Front 45

Name 3 ways you might fix a buzz or hum on a channel in your splitter

Back 45

Change out XLR, Change Subsnake chanel, Ground Lift on Splitter Channel/DI

Front 46

Name two things you could use a direct output for

Back 46

Multitrack Recording, Effects Send, Duplicate Channel

Front 47

Inserts are most often used for sending and returning signal from what type of effects?

Back 47

Dynamic

Front 48

How many EQ filters do most professional console have on each channel?

Back 48

5

Front 49

Name 3 types of EQ filters found on most consoles

Back 49

High Pass, Shelving, Parametric

Front 50

(True/False) Aux Sends take copies of input channels and Matrix Sends take copies of output busses

Back 50

True

Front 51

name three external devices you would typically send signal to from an Aux Output

Back 51

Monitor Wedge, In Ears, Time Bases Effects Processor, 2 Track Recorder

Front 52

(True/False) Multiple channels can be mixed to 1 Aux output

Back 52

true

Front 53

Define the term "Audio Subgroup"

Back 53

**Post Fader Unity Gain Send

Front 54

Define the term "Aux Send"

Back 54

** Pre/Post Fader Variable Send

Front 55

Name 3 practical uses for the Matrix

Back 55

Recording, Delay Stacks, ALD System (Ass Listen)

Front 56

(True/False) Matrix Sends can be set to Pre or Post Fader just like Auxes

Back 56

True

Front 57

Why do we have an internal oscillator on our consoles?

Back 57

Component Testing

Front 58

What does a Mute Group do?

Back 58

Mutes multiple channels with one button press

Front 59

(True/False) An audio console should only have one power supply connected to it at any given time

Back 59

False

Front 60

Name 3 digital console (Model Names)

Back 60

PM5D, Venue, D5, iLive

Front 61

Most digital console have their inputs and outputs in external racks called the.....

Back 61

**FOH, Stage Rack

Front 62

Define the term "Soft Patching"

Back 62

**Ability to Assign any XLR input to any channel fader

Front 63

One of the biggest benefits of digital consoles is that they have _________ and _______ on every channel

Back 63

Compressors, Gates

Front 64

Define the term "Virtual Soundcheck"

Back 64

Sound check with multitrack recording

Front 65

(True/False) You can still use your outboard FX processors with a digital console?

Back 65

true

Front 66

What does the fader flip function allow an engineer to do?

Back 66

Mix monitors with faders

Front 67

Name 3 ways that you can store the settings on a digital console (types of media)

Back 67

USB Key, Internal Hard Drive, Compact Flash Card

Front 68

What does the term "Stem" recording refer to?

Back 68

Recording Sub Groups

Front 69

Name the three ways that you can make a 2-Track board mix from your console

Back 69

Matrix copy of Stereo Buss, Post Fader Aux Sends, Duel Stereo Bus

Front 70

Define "Attack Time" as it relates to the Envelope of Sound

Back 70

**Amount of time it takes for a signal to reach maximum amplitude

Front 71

Define "Sustain Time" as it relates to the Envelope of Sound

Back 71

**Amount of time it takes for signal to reach maximum amplitude

Front 72

Define "Sustain Time" as it relates to the Envelope of Sound

Back 72

**Amount of time a signal holds at maximum amplitude

Front 73

Define "Decay Time"as it relates to the Envelope of Sound

Back 73

**Amount of time it takes for a signal to decay 60dB

Front 74

What Does dBFS stand for?

Back 74

DeciBel Full Scale

Front 75

Name 5 parameters of compressor

Back 75

**Threshold, Ratio, Attack, Release, Output Gain

Front 76

What two signals does a compressor graph compare?

Back 76

Input Level vs Output Level

Front 77

Limiters are defined as any compressor with an _____ or higher ratio setting

Back 77

8:1

Front 78

Where in the signal flow chain are limiters used most often in sound reinforcement?

Back 78

Crossover Outputs

Front 79

What are the 5 parameters of a gate?

Back 79

**Threshold, range, Attack, Hold, Release

Front 80

What does the range (or depth) control do on a gate

Back 80

**Amount of Gain Reduction when the Gain is Fully Closed

Front 81

Name the 4 Primary ways to create artificial reverberation

Back 81

Plate, Spring, Chamber, Digital