Chapter 12

Question 1

Select the connector that permits digital signals to be transferred between a digital sound device and the sound card without converting them to analog?

Answer 1

SPDIF

Question 2

What is the most important factor to consider for high-performance MIDI?

Answer 2

The number of hardware voices that can be supported

Question 3

Audio can be upgraded on a laptop computer by using A USB-based audio card

Answer 3

True

Question 4

What does the author suggest should not be left near computer speakers for extended periods of time?

Answer 4

Recorded tapes

Watches

credit cards

Question 5

__________ is a measurement that indicates the accuracy of an audio adapter’s sound reproduction.

Answer 5

THD

Question 6

What are the ways that audio hardware adapter hardware can be implemented in today’s PC?

Answer 6

Expansion card

External bus device like USB or Firewire

Audio controller integrated into the motherboard, in chipset, or along with sound codec

All of the above

Question 7

If you are having difficulty running legacy software that requires legacy audio support, the author suggests that you use a(n) __________.

Answer 7

virtual machine

Question 8

The rate at which sound vibrations are produced is a property of sound called __________

Answer 8

pitch

Question 9

Volume can be controlled on most recent sound cards via the Windows ___________ ___________ speaker icon in the system tray on the desktop( 2 words )

Answer 9

control panel

Question 10

With the introduction of Windows Vista , Direct X no longer included audio application APIs. These APIs became part of the Windows Vista Core Audio APIs

Answer 10

True

Question 11

What is the possible problem if a computer won’t start after an audio adapter has been installed?

Answer 11

Audio adapter not completely inserted in the expansion slot

Question 12

Name two ways that MIDI can create the voices (instruments) it uses to play music.

Answer 12

Recorded samples of an actual instrument (wavetable adapters)
FM synthesizer

Question 13

Where does the author say the best location for a subwoofer is?

Answer 13

On the floor, in a corner or near a wall

Question 14

___________________ is the ratio of the signal amplitude to the unwanted ambient circuit sounds (noise)

Answer 14

SNR (signal-to-noise ratio)

Question 15

Which of the operating systems listed below supports DirectX 3D audio?

Answer 15

Windows Vista

Windows 7

Neither A nor B

Question 16

A program called a _____________ can both reduce audio file size and return an audio file to its original size.

Answer 16

Codec

Question 17

What type of microphone does the author suggest for recording voices (talking) only?

Answer 17

An inexpensive microphone that covers a limited range of frequencies

Question 18

What was the name of the sound card that became a de facto standard in the early days of PC sound?

Answer 18

Sound Blaster Pro

Question 19

_________________ is a process that turns audio sound waves into digital signals

Answer 19

Sampling

Question 20

What is the name of the algorithm that is widely used for reducing audio file size?
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ compression (do not use acronym)

Answer 20

Adaptive Differential Pulse Code Modulation