Audio Engineering Final exam Review
What is the key command for fast forward?
+ on the number pad
The 3:1 rule simply states that when using 2 microphones on a common source,
the microphone should be three times the distance from each other as the closest mic is to the source
The point at which the average individual first starts to experience sound
threshold of hearing
The point at which the average individual first starts to experience discomfort
threshold of pain
Harmonics create the ___ of the musical instruments
timbre
The formula to calculate standing waves is
velocity/ 2 x length =f 1
The formula to calculate wave length is
velocity/ frequency = wave length
Two tones that differ only slightly in frequency and have approximately the same amplitude will produce an affect known as
Beats
The 3:1 rule is to help minimize ___ between microphones used on a common source
Cancellation
Close micing is the technique of
Capturing a majority of the direct sound while minimizing reflections
Ambient micing is the technique of
Capturing the reflections within the acoustical environment while minimizing the direct sound
What is lined with the tiny hairs attached to nerves?
Cochlea
____ results when two loud tones differ by more than 50 hertz
Combination tones
Which type of studio typically has more than thirty projects going at any given time?
Commercial
What is the short cut key command to create a mono track?
Control Shift A
What is the shortcut key command to create a midi track?
Control Shift M
What is the short cut key command to create a stereo track?
Control Shift S
If a soundbite cannot be played back because its sample rate doesn't match the current sample rate of the project you can convert the soundbite's sample rate using the __.
Convert Audio File Function in the soundbite mini- menu
CAF is what type of file format
Core Audio Format
The wavelength ___ while velocity decreases.
Decreases
The ability of sound to bend around objects and rebuild itself is called
Diffraction
What does the X over the wave form icon indicate?
Digital performer displays this icon when it cannot play back the soundbite for some reason.
What does the ? over the waveform icon indicate?
Digital performer displays this icon when it does not currently know the location of the audio file containing the soundbite
Which microphone input characteristics deals with the greatest area of sensitivity?
Directional response
Which type of wall offers the most acoustical isolation.
Double stud construction
___ is the process of fooling the brain into thinking that the apparent number of instruments being played has increased by using delays between 4-20 milliseconds.
Doubling
Which electrostatic microphone does not require phantom power?
Electret
Technical decisions are responsibility of the?
Lead Engineer
Overload of a microphone occurs when ___ has been exceeded.
MSPL
Which microphone input characteristic deals with overload?
MSPL
Which microphone output characteristics deals with harmonic distortion?
MSPL
___ is the phenomenon by which loud signals prevent the ear from hearing softer sounds
Masking
Which type of studio has eight or more projects going at any given time?
Music Recording
The difference between the start time of two waves is
Phase Shift
The difference between two waves at any time
Phase relationship
How would you change the sound on a midi track?
Select the Midi track and chose Effects from the project menu to open the instrument plug in window.
Which output characteristics deals with gain?
Sensitivity
Which wave form is a pure tone?
Sine
Which type of wall would you most likely find in a music recording studio?
Single or double stud
Which type of wall would you most likely find in a Project studio?
Single stud
SPL stands for
Sound Pressure Level
Early reflections that occur within 30 milliseconds of the direct sound create a condition known as ____.
Temporal Fusion
Fletcher Munson equal loudness curves indicates?
The ears average Sensitivity to different sensitivity to different frequencies at various levels
Which microphone characteristics deals with saturation?
Transient response
True or False? The compact command removes audio data from the hard disk and all portions of the parent audio file selected soundbites which are not defined as a region list
True
True or false? Reverberation occurs whenever room reflections continue to bounce off walls.
True
True or false? There are three kinds of chunks: sequences, V-Racks, and songs
True
Distant micing is the technique of
a balance of the direct sound of the source and the reflections of the acoustical environment
The envelope of a wave form represents
amplitude over time
Frequencies that are 180 degrees out of phase will
cancel
Frequencies that are 90 degrees out of phase will
cancel and re-enforce
Accent micing is the technique of
capturing a particular characteristic of the source while minimizing reflections
Because of its heart shaped polar chart, some polar patterns are named?
cardioid
Which wave form type is a musical instruments
complex
The difference between two tones in the ear creates
difference tones
The wavelength of a wave form is defined as
distance traveled in one cycle
Which type of wall would you most likely find in a commercial studio?
double stud
Dynamic mic's are
electromagnetic
Condenser mic's are
electrostatic
What is the key command for play?
enter on the number pad
When dealing with reflections the angle of incident and reflection are always
equal and opposite
The charted frequency output of an audio device is known as its
frequency response
The dB expresses differences in?
intensity between two levels
Decibels are based on
logarthims
The human ear is a?
nonlinear device
The frequency of wave form is defined as?
number of cycles that can occur within a second
Dynamic microphones achieve by incorporating a rear _.
port
Frequencies that are 0 degrees out of phase will
re-enforce
A V-Rack is?
similar to a sequence, except that they have no time domain and they do not hold track data or automation.The only types of tracks you can add to them are instrument tracks, aux tracks and master faders.As such they are intended to be used as "effects" racks, a centralized location for effects processing and virtual instruments.
which wave form type is not natural
simple
The combination of two tones in the ear creates
sum tones
The amplitude of a wave form is defined as
the energy of a wave above or below the 0 axis
Which microphone characteristics deals with self noise?
Equivalent Noise Rating
___ can also be referred to as a signal to noise ratio.
Equivalent noise rating
True or False? Soundbites that are removed from the soundbites list or deleted entirely from their parent audio file are also removed from the HardDrive.
False
Artistic decisions are the responsibility of the?
Producer
Which type of studio has one or two projects going at any given time?
Project
___ is the time it takes for reverberation to decrease by 60 dB below its original level.
Reverb Time
The Acoustical environment should not interfere with the sound of an instrument or vocal and should allow a natural balance of tone without coloring. This is called?
Frequency Balance
What microphone characteristics deals with sensitivity to various frequencies?
Frequency Response
Psycho acoustics deals with ___ the brain interprets particular sound stimulus in a certain way
How and why
What design characteristics prevents sound from exiting from or entering into the studio environment.
Acoustical Isolation
This minimizes leakage between microphones in the studio environment.
Acoustical separation
What is the key command for stop?
0 on the number pad
What is the key command for rewind?
1 on the number pad
A difference of 60 dB is a difference in energy of
1,000,000
The formula to calculate the period( duration) of a wave is
1/ frequency = Time
A difference of 40 dB is a difference in energy of
10,000
The frequency of 10k Hz is equal to?
10,000 CPS
A difference of 100 dB is a difference in energy of
10,000,000,000
The human ear operates over an energy range approximately
10,000,000,000,000 : 1
A difference of 50 dB is a difference in energy of
100,000
The velocity of a wave form in the air is?
1130 fs
What is the key command for pause on/off?
2 on the number pad
What is the key command for record?
3 on the number pad
One wavelength is equal to?
360 degress
What is the key command for fast reversed?
4 on the number pad
What is the key command for slow reversed?
5 on the number pad
What is the key command for slow forward?
6 on the number pad
A sequence is?
A complete performance of MIDI and/or audio consisting of any number of tracks, which are shown in the tracks windows, edit windows mixing board , and so on.