Sound

Question 1

What is sound in computing?

Answer 1

Sound in computing refers to audio data that can be processed, stored, and played back by computers.

Question 2

True or False: Sound is represented in computers as a waveform.

Answer 2

True

Question 3

What is the unit of measurement for sound frequency?

Answer 3

Hertz (Hz)

Question 4

Fill in the blank: The standard sample rate for audio CDs is ____ Hz.

Answer 4

44100

Question 5

What does MIDI stand for?

Answer 5

Musical Instrument Digital Interface

Question 6

Multiple Choice: Which of the following is a common audio file format? A) .txt B) .mp3 C) .exe

Answer 6

.mp3

Question 7

What is digital audio?

Answer 7

Digital audio is sound that is recorded, stored, and transmitted in a digital format.

Question 8

True or False: Analog audio is represented by discrete values.

Answer 8

False

Question 9

What is a sound card?

Answer 9

A sound card is a hardware component that allows a computer to send and receive audio data.

Question 10

Fill in the blank: The process of converting analog signals to digital form is called ____.

Answer 10

sampling

Question 11

Multiple Choice: Which of the following is NOT an audio editing software? A) Audacity B) Photoshop C) Pro Tools

Answer 11

Photoshop

Question 12

What is the purpose of an audio codec?

Answer 12

An audio codec compresses and decompresses digital audio files.

Question 13

True or False: WAV files are compressed audio formats.

Answer 13

False

Question 14

What does the term ‘bit depth’ refer to in audio?

Answer 14

Bit depth refers to the number of bits used to represent each audio sample.

Question 15

Fill in the blank: The higher the bit depth, the greater the ____ of the audio.

Answer 15

dynamic range

Question 16

Multiple Choice: Which audio format is commonly used for lossy compression? A) FLAC B) MP3 C) AIFF

Answer 16

MP3

Question 17

What is latency in audio processing?

Answer 17

Latency is the delay between input and output in audio processing.

Question 18

True or False: Higher sample rates generally lead to better audio quality.

Answer 18

True

Question 19

What is a waveform?

Answer 19

A waveform is a graphical representation of the variation of a sound signal over time.

Question 20

Fill in the blank: The human ear can typically hear frequencies ranging from ____ Hz to ____ Hz.

Answer 20

20, 20000

Question 21

Multiple Choice: Which of the following is a lossless audio format? A) MP3 B) FLAC C) AAC

Answer 21

FLAC

Question 22

What is stereo sound?

Answer 22

Stereo sound uses two audio channels to create a sense of directionality in sound.

Question 23

True or False: Surround sound uses more than two audio channels.

Answer 23

True

Question 24

What is an audio interface?

Answer 24

An audio interface is a device that connects microphones and instruments to a computer.

Question 25

Fill in the blank: The process of adjusting volume levels in audio is called ____.

Answer 25

mixing

Question 26

Multiple Choice: Which of the following is a common audio synthesis method? A) Subtractive B) Destructive C) Constructive

Answer 26

Subtractive

Question 27

What are sound waves?

Answer 27

Sound waves are vibrations that travel through air, water, or solid materials.

Question 28

True or False: Sound can travel in a vacuum.

Answer 28

False

Question 29

What does the term 'frequency response' refer to?

Answer 29

Frequency response refers to the range of frequencies that an audio system can reproduce.

Question 30

Fill in the blank: The amplitude of a sound wave determines its ____.

Answer 30

loudness

Question 31

Multiple Choice: Which of the following is a type of audio effect? A) Reverb B) Compression C) Both A and B

Answer 31

Both A and B

Question 32

What is pitch?

Answer 32

Pitch is the perceived frequency of a sound, determining how high or low it sounds.

Question 33

True or False: The Doppler effect relates to changes in frequency due to relative motion.

Answer 33

True

Question 34

What is phase cancellation?

Answer 34

Phase cancellation occurs when two sound waves of the same frequency are out of phase, resulting in reduced amplitude.

Question 35

Fill in the blank: The term 'decibel' is used to measure ____.

Answer 35

sound intensity

Question 36

Multiple Choice: Which audio format is typically used for video editing? A) WAV B) PDF C) TXT

Answer 36

WAV

Question 37

What is a sound wave's wavelength?

Answer 37

Wavelength is the distance between consecutive points of equal phase in a sound wave.

Question 38

True or False: Sound can be visually represented using a spectrogram.

Answer 38

True

Question 39

What is audio normalization?

Answer 39

Audio normalization adjusts the amplitude of an audio file to reach a target level.

Question 40

Fill in the blank: In audio processing, ____ refers to the overall tone quality of a sound.

Answer 40

timbre

Question 41

Multiple Choice: Which of the following is an effect used to create a sense of space in audio? A) Distortion B) Echo C) Equalization

Answer 41

Echo

Question 42

What is the Nyquist theorem?

Answer 42

The Nyquist theorem states that to accurately digitize an analog signal, it must be sampled at least twice its highest frequency.

Question 43

True or False: Compression in audio reduces the dynamic range of a sound.

Answer 43

True