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

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	70°
B	110°
C	90°
D	10°

Question 2

What is Divergence?

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

Question 3

Explain why the LFE channel is represented by .1

A	Because the sample rate for this channel is only a fraction of the sampling rate of the principal channels - Nyquist Theorem
B	It is borrowed from the web industry which first used an LFE and called it .1
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	Because the LFE only plays low frequencies as appropriated via channel locks

Question 4

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

A	Feeds the same signal out of 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 in phase in two directions

Question 5

Why were bit reduction schemes developed for 5.1?

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

Question 6

What is a bass management system?

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

Question 7

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 8

Which movie was the first theatrical surround sound release?

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

Question 9

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 10

What does HRTF stand for?

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

Question 11

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

A	True
B	False

Question 12

What is DVD-A?

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

Question 13

SACD uses what digital binary encoding method?

A	DSD
B	LPCM
C	WAV
D	PCM

Question 14

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

Question 15

The LFE is defined as

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

Question 16

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

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

Question 17

AC-3 coding is commonly referred to as:

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

Question 18

What does Lt/Rt stand for?

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

Question 19

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

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

Question 20

What is downmixing?

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

Question 21

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

A	7
B	4
C	8
D	6

Question 22

LCRS stands for:

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

Question 23

The Surround Panning Grid only appears when...

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

Question 24

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

A	True
B	False

Question 25

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

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

Question 26

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

A	False
B	True

Question 27

What is Upmixing?

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