Pro Tools: Surround Sound Quiz

Gary May 14, 2016 Test Yourself No Comments

Pro Tools: Surround Sound Quiz

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Welcome to our 30 question long exam on Surround Sound, some questions will be Pro Tools specific and others will be based on general principles.

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Question 1

What is the difference between Dolby Digital and Dolby Pro Logic?

A	Dolby Digital is Matrixed and Pro Logic is Discrete surround
B	Dolby Digital is Discrete and Pro Logic is Matrixed Surround
C	Dolby Pro Logic is not available in home theater systems
D	Dolby Digital is not available in home theater systems

Question 2

A surround array refers to:

A	The size of the sweet spot
B	A mixing style for 5.1
C	None of these
D	The addition of extra surround speakers to fill the back end of an acoustic space

Question 3

AC-3 coding is commonly referred to as:

A	Dolby Digital
B	Pro Logic BJ
C	DTS AH
D	MP3

Question 4

The LFE is defined as

A	Low Frequency Effect
B	Lower Fader Equalizer
C	Left Fader Equalizer
D	Low Fact Effect

Question 5

Why were bit reduction schemes developed for 5.1?

A	Not enough room on available media formats to store multichannel outputs
B	Digital audio sounds better when compressed
C	To prevent buffer underruns
D	You can't have lossless multichannel

Question 6

What is downmixing?

A	The process of summing multichannel mixes (5.1) into stereo
B	The process of summing stereo mixes into multichannel mixes (5.2)
C	The process of splitting multichannel mixes (5.1) into mono stems
D	The process of summing mono tracks into a multichannel mix (5.1)

Question 7

Explain why the LFE channel is represented by .1

A	Because the LFE only plays low frequencies as appropriated via channel locks
B	It is borrowed from the web industry which first used an LFE and called it .1
C	Because the sample rate for this channel is only a fraction of the sampling rate of the principal channels - Nyquist Theorem
D	Because the LFE channel plays through a subwoofer which can be placed anywhere due to the omnidirectional properties of low frequencies - Nialist Theorem

Question 8

Using a stereo source or an encoded two-channel source, which of the following can be used to extract five audio channels?

A	Dolby Pro Logic II
B	Heptaphonic
C	Dolby Pro Logic
D	Quadraphonic

Question 9

What does Lt/Rt stand for?

A	Left Track/Right Track
B	Left Trim/Right Trim
C	Left Total/Right Total
D	Left Turn/Right Turn

Question 10

SACD uses what digital binary encoding method?

A	PCM
B	WAV
C	LPCM
D	DSD

Question 11

What is the maximum number of discrete channels Dolby Digital can produce?

A	6
B	3
C	5
D	4

Question 12

What does HRTF stand for?

A	Head Reacting Transfer Fourier
B	Head Related Timbre Function
C	Head Related Transfer Function
D	Helical Related Timbre Fourier

Question 13

Front-Firing and Down-Firing are types of what?

A	Amplifiers
B	Subwoofer
C	DVD's
D	Audio Coding Formats

Question 14

True or False: LFE and the Sub are the same thing?

A	False
B	True

Question 15

Signal routing choices are defined and edited in what Pro-tools dialog section?

A	Automation Configure Dialog
B	Session Set-up Dialog
C	Strip Silence Dialog
D	I/O Set-Up Dialog

Question 16

True or False: DVD-V (video) can contain both an AC-3 and a DTS encoded surround mix?

A	True
B	False

Question 17

The Dolby Digital (AC-3) surround standard utilizes how many tracks?

A	8
B	7
C	6
D	4

Question 18

How does a Dipole speaker differ from a Direct Radiator speaker?

A	Feeds the same signal in phase in two directions
B	They are always smaller than Direct Radiator speakers
C	Feeds the same signal out of phase in two directions
D	Feeds the same signal out of phase in one direction

Question 19

Which movie was the first theatrical surround sound release?

A	Sound of Music
B	Star Wars
C	Fantasia
D	North by Northwest

Question 20

In a 6.1 channel DTS-ES surround, what is the right placement for the surround speakers?

A	Three Speakers at the rear
B	Two speakers at the rear
C	One each at front right and front left
D	One on each side of the listener and one at the rear

Question 21

According to the ITU-775 recommendation, at which angle should the rear left and rear right speakers be placed within a 5.1 system?

A	90°
B	70°
C	110°
D	10°

Question 22

In the Pro Tools Surround Panner, a Center percentage of 100% will feed how much signal to the Left and Right channel?

A	20%
B	0%
C	100%
D	50%

Question 23

LCRS stands for:

A	Left, Center, Right, Sub
B	Left, Center, Right, Service
C	Left, Center, Right, System
D	Left, Center, Right, Surround

Question 24

What is DVD-A?

A	Digital Video Disc - Alternative
B	Digital Compact Video Standard
C	An MPEG Standard for DVD
D	An Audio Standard for DVDs

Question 25

What is a bass management system?

A	An LFE system which will not allow low frequencies to get to the LFE
B	A 7.1 system with two LFE channels
C	A crossover system that directs low frequency signals into the LFE
D	A 5.1 system with two LFE channels

Question 26

What is Upmixing?

A	Creating a mono or stereo master from a Surround mix
B	The process of authoring a DVD
C	The process of printing a surround mix
D	Creating a Surround mix from a mono or stereo master

Question 27

What is Divergence?

A	A width control for surround panning
B	Avoiding the .1 channel
C	A width control for stereo panning
D	A pan control for surround panning

Question 28

In which speaker would you most commonly find the voices within a surround sound film mix?

A	Rear Left
B	Subwoofer
C	Center
D	Front L+R

Question 29

The Surround Panning Grid only appears when...

A	Auto Write On Stop is used in connection with the I/O dialog
B	A Mono or Stereo channel is routed to a Surround Output Path
C	The Relative Write Mode is Enabled
D	The Relative Read Mode is Enabled