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what is the microphone dBu level?
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Professional line level is?
Gain Structure is?
The audio levels at different points in the signal flow
The path the audio takes through the audio chain
The function of the pan pot could be to?
Vary the relative gain being being fed to both slides of a set of speakers.
An audio bus is a?
A common signal path
A Pot is?
A fold back system..........?
Routes the signal to headphone monitors
AFL and PFL are associated with the console?
The location where all devices in the studio can be interconnected is called the?
Patch bay or Jack field
Look at symbol for an amplifier
Look at symbol for "a switch"
Given a console that is marketed as being a 48 X 8 X 2 console, how many inputs does the console have?
The layout of analog patch bays typically has ........... over ...........
What is the recording console's first gain stage?
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?
This type of cable wiring is used in professional audio systems because it helps reject noise
When creating a headphone mix, you want your auxiliary sends to be set as.............. so that they are independent of the console fader.
You would use this connection point on the console to add an external compressor to the signal chain.
The most common professional microphone connector is called a?
balanced inputs have what advantage over unbalanced inputs?
CMR noise rejection
To connect an electric guitar directly into a console preamplifier you need a?
An unbalanced Cable is
Most budget mixers as well as home stereos have this kind of EQ for the treble and bass
Filters are usually identified by?
Cut of frequency
All analog EQ's and many digital EQ's create........ when used?
Parametric means that these qualities on an EQ are variable?
Level, frequency and "Q"
What control on a compressor tells it how much to attenuate the output?
The side chain input on a compressor might also be called the?
An expander is normally used in the studio to?
Control noise and leakage
A compression ratio is a ratio of?
input to output
A threshold control of a compressor/limiter?
Sets the dB level above which compression will begin to be applied
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?
A time processor effect replicating an instrument playing the same part over again is known as?
Which of the following best describes the flanging effect?
A shifting comb filter with harmonically related null points.
Spring reverb is known for its?
An echo chamber?
Creates natural sounding reverberation
The decay time of a reverb is measured......
As how long it takes the initial sound to decay 60 dB
This type of reverb device uses an electromechanical transducer to create a vibration in a large piece of sheet metal.
What brought about the need for developing and applying artificial reverb?
Close mixing and multi-tracking
The more reverb effect used on an instrument signal.......
The further away that instrument sounds
Review: Two prong XLR connector:
low voltage and potentially high current
low current and potentially high voltage
A connector used on microphones unbalanced
Review: 1/4" TRS connector (What it looks like)
Review: TT- "Tiny Telephone" connector (What it looks like)
Review: 1/4" phone or TS connector (What it looks like)
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.
The amount of work required in moving one \n electric charge from one point to the other.
The amount of charge passing through the \n circuit in unit time.
The opposition offered by the flow of \n current in the circuit.
The product of work done and the number of \n electrons passing through the circuit in unit time. Watt \n is the unit
the 4 basic units of electricity are
volts, amps, \n ohms, and watts.
What is the formula for power
1 Watt to 2 Watts
10 x log 2W/1W
10 x log 2
10 x .3
a doubling of power yields a
3 dB increase
What is the formula for Voltage
double of voltage (pressure)
6 dB increase
Doubling the distance
DECREASES the Sound \n Pressure Level by 6 dB
Halving the distance
INCREASES the Sound \n Pressure Level by 6 dB.
Acoustical sound pressure level
(highest frequency \n to be recorded
The most common system for analog to digital conversion
PCM - Pulse Code Modulation
Sampling frequency determines
Bit Depth determines
Violation of Nyquist’s law
(having audio \n frequencies above ½ the sampling frequency) \n results in the creation of alias waves.
Time interval names
Nyquist rate, sampling frequency, sampling rate
What is used to prevent incorrect sampling of frequencies
Anti-Aliasing Filter(High cut filter)
What is the analog version of anti-aliasing filter
Brick wall analog filter
What is the process of converting analog to digital 0101010001
What is digital word length
Formula to find The number of bits per second or bit rate
Bit depth multiplied by the sampling frequency
What is a Rounding error in bits
Quantizing error (Noise)
Large errors are concealed using
If an error cants be corrected what happens
It will be concealed
Error in timing of the sampling
How can you reduce a jitter
The use of a master time clock
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.