Deck 16: Audio for Video

Question 1

People are more critical of what they see than what they hear.

Answer 1

False

Question 2

A 0 dB measurement refers to a very different level of sound in acoustics than it does in electronics and a different measuring scale is required.

Answer 2

True

Question 3

The original sampling rate for audio was set at 48 kHZ. In order to have a sample rate that worked equally across international video frame rates, 44.1 kHz was chosen for professional video equipment.

Answer 3

False

Question 4

One "channel" of AES contains two signals, both left and right portions of a stereo pair of channels.

Question 5

Out of phase error in an audio speaker system can often be corrected by reversing two wires on one side of the signal path.

Question 6

Acoustic engineers use an acoustic measuring system referred to as

A) dBSPL
B) dBm
C) dBv
D) dBVU

Question 7

In this system, up to 16 channels of uncompressed audio signals are inserted into the digital data stream along with the video signal and other metadata?

A) Dolby Noise Reduction
B) Phantom Audio
C) Embedded Audio
D) Surround Sound

Question 8

Which one video connection carries the serial data that includes audio, video, synchronizing time code and so on.

A) balanced line
B) toslink
C) SVideo
D) SDI

Question 9

Which MPEG compression rate offers the lowest rate of compression, thereby yielding the best fidelity of the original signal?

A) Layer 1 - 192 kbps
B) Layer 2 - 128 kbps
C) Layer 3 - 64 kbps
D) Layer 4 - 32 kbps

Question 10

The Dolby 5.1 digital surround system provides the user with channels of sound.

A) 4
B) 5
C) 6
D) 7