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

Explain why the LFE channel is represented by .1

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

Question 2

Why were bit reduction schemes developed for 5.1?

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

Question 3

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 one direction
D	Feeds the same signal out of phase in two directions

Question 4

SACD uses what digital binary encoding method?

A	LPCM
B	WAV
C	PCM
D	DSD

Question 5

Which movie was the first theatrical surround sound release?

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

Question 6

What is Divergence?

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

Question 7

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

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

Question 8

What is Upmixing?

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

Question 9

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

A	6
B	3
C	5
D	4

Question 10

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

A	7
B	6
C	4
D	8

Question 11

What does HRTF stand for?

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

Question 12

What is DVD-A?

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

Question 13

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 14

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

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

Question 15

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

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

Question 16

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	110°
B	10°
C	70°
D	90°

Question 17

True or False: Lossless Codecs create smaller files than Lossy Codecs?

A	False
B	True

Question 18

A surround array refers to:

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

Question 19

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

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

Question 20

The Surround Panning Grid only appears when...

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

Question 21

What is downmixing?

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

Question 22

AC-3 coding is commonly referred to as:

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

Question 23

What does Lt/Rt stand for?

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

Question 24

What is a bass management system?

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

Question 25

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

A	True
B	False

Question 26

LCRS stands for:

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

Question 27

The LFE is defined as

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

Question 28

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

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

Question 29

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

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

Question 30

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

A	True
B	False

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Pro Tools: Surround Sound Quiz

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