Electronic Music Quiz. Sussex Uni. 1. Introduction

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  • 1/12 Questions

    When it comes to the oscillation of sine ways, what does Frequency measure (in Hertz)?

    • Cycles per hour
    • Cycles per minute
    • Cycles per second
    • Bicycles per second
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About This Quiz

Explore the fundamentals of sound in the 'Electronic Music Quiz' at Sussex Uni. This quiz covers psychoacoustics, hearing ranges, sound representations, amplitude measurement, and periodic sounds, enhancing understanding of acoustical science and audio engineering.

Electronic Music Quiz. Sussex Uni. 1. Introduction - Quiz

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  • 2. 

    Digital is a .... signal.

    Explanation
    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."

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  • 3. 

    What is a good way of describing psychoacoustics?

    • "What humans can detect from acousmatics"

    • "What humans can detect from sound"

    • "What humans can detect from acoustic guitars"

    • "What humans can detect from psychos"

    Correct Answer
    A. "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.

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  • 4. 

    What do deciBels measure?

    • Amplitude

    • Frequency

    • Period

    • The height of your fist

    Correct Answer
    A. Amplitude
    Explanation
    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.

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  • 5. 

    What's a more common term for "the amplitude of a sound"

    • The loudness of a sound

    • The pitch of a sound

    • The duration of a sound

    • The timbre of a sound

    Correct Answer
    A. The loudness of a sound
    Explanation
    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.

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  • 6. 

    What do we call the simplest periodic sounds?

    • Simple waves

    • Sign waves

    • Sine waves

    • Surf waves

    Correct Answer
    A. Sine waves
    Explanation
    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.

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  • 7. 

    A periodic sound consists of a fundamental frequency and other components at multiples of that frequency. What are these multiples called?

    • The partial series

    • The supertonic series

    • The harmonic series

    • The world series

    Correct Answer
    A. The harmonic series
    Explanation
    The harmonic series refers to the multiples of the fundamental frequency in a periodic sound. These multiples are called harmonics.

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  • 8. 

    Analogue is a ... signal Which is the missing word?

    • Harmonic

    • Continuous

    • Discrete

    • Discreet

    Correct Answer
    A. Continuous
    Explanation
    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.

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  • 9. 

    The hearing range at infancy is 20 Hz - 20000 Hz

    • True

    • False

    Correct Answer
    A. True
    Explanation
    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.

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  • 10. 

    Which of the following can not be seen as a form / representation of sound?

    • The electromagnetic signal in a circuit

    • A series of 1s and 0s stored in a computer

    • The electrostatic force between two opposite charges

    • Waves propagating through the collision of air molecules

    Correct Answer
    A. The electrostatic force between two opposite charges
    Explanation
    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.

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  • 11. 

    Sounds that repeat themselves are called ...

    • Frequent sounds

    • Period sounds

    • Electromagnetic sounds

    • Repetitive

    Correct Answer
    A. Period sounds
    Explanation
    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.

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  • 12. 

    What is the hearing range of young adults?

    • 12 Hertz - 12000 Hertz

    • 16 Hertz - 16000 Hertz

    • 20 Hertz - 20000 Hertz

    • 20 Heinz - 20000 Heinz

    Correct Answer
    A. 16 Hertz - 16000 Hertz
    Explanation
    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.

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  • Current Version
  • Nov 10, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 04, 2012
    Quiz Created by
    OliverLindman
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