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.