Electronic Music Quiz. Sussex Uni. 1. Introduction
Quiz on Week 1 material
Questions and Answers
- 1.
What is a good way of describing psychoacoustics?
- A.
"What humans can detect from acousmatics"
- B.
"What humans can detect from sound"
- C.
"What humans can detect from acoustic guitars"
- D.
"What humans can detect from psychos"
Correct Answer
B. "What humans can detect from sound"Explanation
Psychoacoustics is the scientific study of how humans perceive and interpret sound. It focuses on understanding how the human auditory system processes and perceives various sound stimuli. The answer "What humans can detect from sound" accurately describes the essence of psychoacoustics, as it encompasses the study of what humans are able to perceive and detect from the auditory signals they receive.Rate this question:
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- 2.
What is the hearing range of young adults?
- A.
12 Hertz - 12000 Hertz
- B.
16 Hertz - 16000 Hertz
- C.
20 Hertz - 20000 Hertz
- D.
20 Heinz - 20000 Heinz
Correct Answer
B. 16 Hertz - 16000 HertzExplanation
The correct answer is 16 Hertz - 16000 Hertz. This range represents the frequencies that young adults are typically able to hear. The lower end of the range, 16 Hertz, corresponds to lower-pitched sounds, while the higher end, 16000 Hertz, corresponds to higher-pitched sounds. This range is considered normal for individuals with good hearing in the young adult age group.Rate this question:
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- 3.
Which of the following can not be seen as a form / representation of sound?
- A.
The electromagnetic signal in a circuit
- B.
A series of 1s and 0s stored in a computer
- C.
The electrostatic force between two opposite charges
- D.
Waves propagating through the collision of air molecules
Correct Answer
C. The electrostatic force between two opposite chargesExplanation
The electrostatic force between two opposite charges cannot be seen as a form or representation of sound because sound is a mechanical wave that requires a medium to propagate, such as air or water. The electrostatic force, on the other hand, is a static force that acts between charged particles and does not involve any mechanical vibrations or waves. Therefore, it does not have any direct connection to the perception or transmission of sound.Rate this question:
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- 4.
The hearing range at infancy is 20 Hz - 20000 Hz
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the hearing range at infancy, which refers to the period of early childhood, is generally considered to be between 20 Hz and 20,000 Hz. This means that infants are capable of perceiving sounds within this frequency range. However, it is important to note that individual variations may exist, and some infants may have a slightly narrower or wider hearing range.Rate this question:
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- 5.
What do deciBels measure?
- A.
Amplitude
- B.
Frequency
- C.
Period
- D.
The height of your fist
Correct Answer
A. AmplitudeExplanation
Decibels measure the amplitude of a sound wave. Amplitude refers to the maximum displacement of a wave from its equilibrium position. In the context of sound, it represents the loudness or intensity of the sound. Decibels are a logarithmic scale used to quantify the ratio between two sound intensities, with each increase of 10 decibels indicating a tenfold increase in sound intensity. Therefore, decibels are used to measure the amplitude or strength of sound waves.Rate this question:
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- 6.
Sounds that repeat themselves are called ...
- A.
Frequent sounds
- B.
Period sounds
- C.
Electromagnetic sounds
- D.
Repetitive
Correct Answer
B. Period soundsExplanation
The correct answer is "period sounds" because sounds that repeat themselves at regular intervals are referred to as period sounds. This term is commonly used in the field of physics and acoustics to describe sounds that have a distinct pattern of repetition. It is important to note that the other options, such as frequent sounds or repetitive sounds, do not specifically indicate the regularity or periodic nature of the sound.Rate this question:
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- 7.
What do we call the simplest periodic sounds?
- A.
Simple waves
- B.
Sign waves
- C.
Sine waves
- D.
Surf waves
Correct Answer
C. Sine wavesExplanation
Sine waves are the simplest periodic sounds because they have a single frequency and no harmonics. They have a smooth, repetitive waveform that can be represented mathematically by a sine function. Sine waves are fundamental in understanding and analyzing various aspects of sound and signal processing. They form the basis for many musical tones and are used in fields such as acoustics, electronics, and telecommunications.Rate this question:
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- 8.
When it comes to the oscillation of sine ways, what does Frequency measure (in Hertz)?
- A.
Cycles per hour
- B.
Cycles per minute
- C.
Cycles per second
- D.
Bicycles per second
Correct Answer
C. Cycles per secondExplanation
Frequency measures the number of cycles of a sine wave that occur in one second. It is expressed in Hertz (Hz), which represents the number of cycles per second. Therefore, the correct answer is "Cycles per second."Rate this question:
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- 9.
What's a more common term for "the amplitude of a sound"
- A.
The loudness of a sound
- B.
The pitch of a sound
- C.
The duration of a sound
- D.
The timbre of a sound
Correct Answer
A. The loudness of a soundExplanation
The term "the amplitude of a sound" refers to the measure of the maximum displacement of a sound wave from its equilibrium position. This displacement determines the intensity or loudness of the sound. Therefore, "the loudness of a sound" is a more common term used to describe the amplitude of a sound wave.Rate this question:
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- 10.
A periodic sound consists of a fundamental frequency and other components at multiples of that frequency. What are these multiples called?
- A.
The partial series
- B.
The supertonic series
- C.
The harmonic series
- D.
The world series
Correct Answer
C. The harmonic seriesExplanation
The harmonic series refers to the multiples of the fundamental frequency in a periodic sound. These multiples are called harmonics.Rate this question:
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- 11.
Analogue is a ... signal Which is the missing word?
- A.
Harmonic
- B.
Continuous
- C.
Discrete
- D.
Discreet
Correct Answer
B. ContinuousExplanation
The missing word in the statement "Analogue is a ... signal" is "continuous". This is because an analog signal is a continuous waveform that represents information in a continuous manner, as opposed to discrete signals which are represented in a series of separate values.Rate this question:
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- 12.
Digital is a .... signal.
Correct Answer
discreteExplanation
A digital signal is a discrete signal because it is represented by a sequence of distinct values or levels. Unlike analog signals, which are continuous and can take on any value within a range, digital signals have a finite number of possible values. These values are typically represented by binary digits (0s and 1s) and can be easily processed and transmitted by digital systems. Therefore, the correct answer is "discrete."Rate this question:
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