RIM 3010- Final:Test 3

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what is the microphone dBu level?

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102 Terms

1

what is the microphone dBu level?

-60 dBu

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2

Professional line level is?

+4 dBu

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3

Gain Structure is?

The audio levels at different points in the signal flow

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4

Signal Flow

The path the audio takes through the audio chain

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5

The function of the pan pot could be to?

Vary the relative gain being being fed to both slides of a set of speakers.

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6

An audio bus is a?

A common signal path

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7

A Pot is?

A potentiometer

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8

A fold back system..........?

Routes the signal to headphone monitors

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9

AFL and PFL are associated with the console?

Solo system

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10

The location where all devices in the studio can be interconnected is called the?

Patch bay or Jack field

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11

Look at symbol for an amplifier

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12

Look at symbol for "a switch"

<p></p>
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13

Given a console that is marketed as being a 48 X 8 X 2 console, how many inputs does the console have?

48

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14

The layout of analog patch bays typically has ........... over ...........

Outputs, inputs

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15

What is the recording console's first gain stage?

Microphone preamp

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16

This is the technical term (wiring term) used to describe a patch point that automatically connects an output to an input without using patch cables?

Normalled

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17

This type of cable wiring is used in professional audio systems because it helps reject noise

balanced

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18

When creating a headphone mix, you want your auxiliary sends to be set as.............. so that they are independent of the console fader.

pre-fader

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19

You would use this connection point on the console to add an external compressor to the signal chain.

Insert

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20

The most common professional microphone connector is called a?

XLR plug

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21

balanced inputs have what advantage over unbalanced inputs?

CMR noise rejection

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22

To connect an electric guitar directly into a console preamplifier you need a?

DI Box

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23

An unbalanced Cable is

high impedance

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24

Most budget mixers as well as home stereos have this kind of EQ for the treble and bass

Shelving

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25

Filters are usually identified by?

Cut of frequency

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26

All analog EQ's and many digital EQ's create........ when used?

Phase Shift

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27

Parametric means that these qualities on an EQ are variable?

Level, frequency and "Q"

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28

What control on a compressor tells it how much to attenuate the output?

Compression ratio

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29

The side chain input on a compressor might also be called the?

Key input

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30

An expander is normally used in the studio to?

Control noise and leakage

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31

A compression ratio is a ratio of?

input to output

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32

A threshold control of a compressor/limiter?

Sets the dB level above which compression will begin to be applied

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33

If a compressor threshold is set at 0 dB and the compression ratio at 2:1 an input signal os +12 dB would produce and output at?

+6 dB

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34

A time processor effect replicating an instrument playing the same part over again is known as?

ADT

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35

Which of the following best describes the flanging effect?

A shifting comb filter with harmonically related null points.

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36

Spring reverb is known for its?

"Twangy", sound

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37

An echo chamber?

Creates natural sounding reverberation

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38

The decay time of a reverb is measured......

As how long it takes the initial sound to decay 60 dB

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39

This type of reverb device uses an electromechanical transducer to create a vibration in a large piece of sheet metal.

plate

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40

What brought about the need for developing and applying artificial reverb?

Close mixing and multi-tracking

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41

The more reverb effect used on an instrument signal.......

The further away that instrument sounds

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42

Review: Two prong XLR connector:

<p></p>
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43

Low impedance

low voltage and potentially high current

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44

High impedance

low current and potentially high voltage

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45

A connector used on microphones unbalanced

XLR connectors

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46

Review: 1/4" TRS connector (What it looks like)

<p></p>
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47

Review: TT- "Tiny Telephone" connector (What it looks like)

<p></p>
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48

Review: 1/4" phone or TS connector (What it looks like)

<p></p>
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49

Review: What is slope, (6 dB per octave on graph)

for each octave (doubling of frequency) above 4000 Hz, the level of frequencies will be diminished by an additional 6 dB.

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50

Voltage

The amount of work required in moving one \n electric charge from one point to the other.

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51

Current

The amount of charge passing through the \n circuit in unit time.

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52

Resistance

The opposition offered by the flow of \n current in the circuit.

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53

Power:

The product of work done and the number of \n electrons passing through the circuit in unit time. Watt \n is the unit

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54

the 4 basic units of electricity are

volts, amps, \n ohms, and watts.

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55

What is the formula for power

10log (P1/P2)

1 Watt to 2 Watts

10 x log 2W/1W

10 x log 2

10 x .3

3

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56

a doubling of power yields a

3 dB increase

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57

What is the formula for Voltage

20log (V1/V2)

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58

double of voltage (pressure)

6 dB increase

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59

Doubling the distance

DECREASES the Sound \n Pressure Level by 6 dB

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60

Halving the distance

INCREASES the Sound \n Pressure Level by 6 dB.

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61

dBm

Power Reference

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62

dBu

Voltage Reference

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63

dBFS

Digital Audio

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64

dB SPL

Acoustical sound pressure level

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65

Analogs

knowt flashcard image
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66

Digital

knowt flashcard image
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67

Nyquist frequency

(highest frequency \n to be recorded

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68

The most common system for analog to digital conversion

PCM - Pulse Code Modulation

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69

Sampling frequency determines

Bandwidth

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70

Bit Depth determines

Dynamic Range

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71

Violation of Nyquist’s law

(having audio \n frequencies above ½ the sampling frequency) \n results in the creation of alias waves.

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72

Time interval names

Nyquist rate, sampling frequency, sampling rate

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73

What is used to prevent incorrect sampling of frequencies

Anti-Aliasing Filter(High cut filter)

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74

What is the analog version of anti-aliasing filter

Brick wall analog filter

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75

What is the process of converting analog to digital 0101010001

Quantization

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76

What is digital word length

Bit Depth

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77

Binary numbers

01001011

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78

Formula to find The number of bits per second or bit rate

Bit depth multiplied by the sampling frequency

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79

What is a Rounding error in bits

Quantizing error (Noise)

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80

Large errors are concealed using

Interpolation

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81

If an error cants be corrected what happens

It will be concealed

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82

Jitter

Error in timing of the sampling

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83

How can you reduce a jitter

The use of a master time clock

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84

digital audio interface will provide two or more \n inputs and outputs, in analog and/or digital (

S/PDIF, \n AES/EBU, ADAT, TOSlink, TDIF, etc.) formats.

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85

What does digital signal processing allow

provides for the ability \n to adjust levels, do equalization, dynamic \n processing, create special effects, edit ,and mix \n digital audio data

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86

Native DSP use

the processing power of the DAW’s \n host computer (MAC or PC

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87

Non-Native DSP use

the processing power of an \n external processing unit (ex. Pro Tools HDX, UAD-2 \n Powered Plug-ins)

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88

Rex files

loops are created in ReCycle by beat slicing.

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89

Looping

The basic idea behind groove-based tools rests with \n tempo matching

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90

dynamic range of \n most pro analog devices

+24 dBu

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91

Consumer line \n level

-10 dBV

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92

Dynamic range

the ranges, in dB, between the lowest \n amplitude and the highest amplitude sound

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93

Thermal noise

always present in electrical \n circuits

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94

Diaphragm noise

in microphones

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95

Electrostatic and electromagnetic noise

noise \n picked up by cables, circuits, and during radio \n transmission)

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96

dynamic range is limited at \n the loud end by harmonic distortion. What is this called?

Overload

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97

When the signal level tries to exceed the \n maximum level the overload occurs. This is called?

Clipping (Harmonic Distortion)

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98

signal to noise ratio is the number of dBs \n between the noise level and specified line or \n reference level

usually +4 dBu

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99

Pro line level of +4 dBu will equal

0 VU

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100

Reason for audio meters

In order for the engineer to know where the \n audio signal is in relation to the dynamic range

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