Eric - Intro To Audio

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  • 1/28 Questions

    The acronym ASDR stands for:

    • Acoustic Dynamic System Reduction
    • Attack Dynamics Suspension Release
    • Attack Decay Sustain Release
    • Attack Duration Sustain Reduction
    • Attack Dynamics Sustain Release
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About This Quiz

Intro to Audio Quiz for Eric.

Eric Unger Quizzes & Trivia

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  • 2. 

    The number of cycles per second of sound wave is expressed in

    • Amplitude

    • Seconds

    • Hertz

    • Nanowebers

    • DB/octave

    Correct Answer
    A. Hertz
  • 3. 

    Reflection of sound occurs when:

    • Sound waves bend around an object

    • Sound waves bounce off an object

    • Sound waves change direction caused by passing through a different medium

    • Multiple repeats of a sound become closely spaced with time creating a 'warm' sound

    • None of the above

    Correct Answer
    A. Sound waves bounce off an object
  • 4. 

    What is the speed of sound in air at 'standard' temperature and pressure?

    • 1000 m/sec

    • 1130 ft/sec

    • 343 ft/sec

    • 1130 m/sec

    • 650 miles/h

    Correct Answer
    A. 1130 ft/sec
  • 5. 

    Breaking down an acoustic waveform graphically into its frequency components is called

    • A Fourier Series Analysis

    • Diffusion

    • Time delay spectronomy

    • Rarefaction

    • Separation

    Correct Answer
    A. A Fourier Series Analysis
  • 6. 

    The smallest amplitude change the ear can perceive in a complex wave when you're not expecting a change is:

    • 3 dB

    • 1 dB

    • 6 dB

    • 0 dB

    • 10 dB

    Correct Answer
    A. 3 dB
  • 7. 

    'Timbre' is defined as

    • The highness or lowness of a sound

    • The characteristic tonal quality of a sound

    • The speed of a sound

    • A sound's sonic time pattern

    • A sound's changing volume and/or pitch

    Correct Answer
    A. The characteristic tonal quality of a sound
  • 8. 

    An anechoic chamber is a room __________________.

    • That is very small

    • Without sound

    • Without reflections

    • With delay

    • With added range

    Correct Answer
    A. Without reflections
  • 9. 

    The name for the bending of a soundwave around an obstacle is known as:

    • Resonance

    • Refraction

    • Diffusion

    • Diffraction

    • Rarefaction

    Correct Answer
    A. Diffraction
  • 10. 

    A reverberent field can be broken down into:

    • Direct Sound

    • Early Reflections

    • Reverberation

    • All of the Above

    • None of the Above

    Correct Answer
    A. All of the Above
  • 11. 

    Given a graphical representation, the negative or downward part of an acoustical wave in air is called:

    • Compression

    • Reduction

    • Rarefaction

    • Amplitude

    • Expansion

    Correct Answer
    A. Rarefaction
  • 12. 

    Wavelength is equal to

    • Frequency/speed of sound

    • Length x width

    • Amplitude/frequency

    • Frequency x speed of sound

    • Velocity/frequency

    Correct Answer
    A. Velocity/frequency
  • 13. 

    Which frequencies are least directional?

    • Low frequencies

    • Low-mid frequencies

    • Mid range frequencies

    • High-mid frequencies

    • High frequencies

    Correct Answer
    A. Low frequencies
  • 14. 

    The musical term for the doubling (or halving) of frequency is

    • Pitch

    • Octave

    • Sharp

    • Harmonic

    • Inversion

    Correct Answer
    A. Octave
  • 15. 

    The 'middle ear' contains the:

    • Tympanic membrane

    • Hammer, anvil, and stirups

    • Cochlea

    • Auditory Nerve

    • Basilar Membrane

    Correct Answer
    A. Hammer, anvil, and stirups
  • 16. 

    Harmonics are:

    • Floating point multiples of the fundamental frequency

    • Only odd number multiples of the fundamental frequency

    • Only even number multiples of the fundamental frequency

    • Whole number multiples of the fundamental frequency

    • Overtones that have no relation to the fundamental frequency

    Correct Answer
    A. Whole number multiples of the fundamental frequency
  • 17. 

    A sine wave can be defined as:

    • A pure tone

    • A simple wave

    • A frequency devoid of harmonics or overtones

    • All of the above

    • None of the above

    Correct Answer
    A. All of the above
  • 18. 

    The 'time' taken for a sound wave to complete one cycle is known as the:

    • Frequency

    • Amplituted

    • Peak value

    • Wavelength

    • Period

    Correct Answer
    A. Period
  • 19. 

    Which part of the body combines the signals from both ears?

    • The outer ear

    • The middle ear

    • The inner ear

    • The brain stem

    • The brain

    Correct Answer
    A. The brain stem
  • 20. 

    'Pitch' is defined as:

    • The highness or lowness of a sound

    • The loudness or softness of a sound

    • The characteristic tonal quality of a sound

    • The speed of a sound

    • A sound's sonic time pattern

    Correct Answer
    A. The highness or lowness of a sound
  • 21. 

    Fletcher-Munson curves are a graphical representation of:

    • Spl

    • Frequency response

    • Phase angle

    • Equal loudness

    • Signal to noise ratio

    Correct Answer
    A. Equal loudness
  • 22. 

    Which octaves are referred to as the 'sonic horizon' or the 'sonic anchor'?

    • 1st & 2nd

    • 3rd & 4th

    • 5th, 6th, and 7th

    • 8th

    • 9th

    Correct Answer
    A. 3rd & 4th
  • 23. 

    One complete cycle of a 100Hz tone is _____ in length when traveling in air at 68 degrees.

    • 1.13 ft

    • 11.3 ft

    • 113 ft

    • 1130 ft

    • None of the above

    Correct Answer
    A. 11.3 ft
  • 24. 

    'Constructive interference' of sound waves that are partially out of phase is defined as

    • Phase that cancels the sound completely

    • Phase that increases a sound's amplitude

    • Phase that decreases a sound's amplitude

    • A & c

    • None of the above

    Correct Answer
    A. Phase that increases a sound's amplitude
  • 25. 

    The 'midrange' frequencies (5th, 6th, & 7th octaves) are located between:

    • 20Hz-80Hz

    • 81Hz-320Hz

    • 2.57kHz-3.5kHz

    • 3.56kHz-5.12kHz

    • None of the above

    Correct Answer
    A. None of the above
  • 26. 

    When a vibrating object moves inwardly, it's effect of the air molecules surrounding it is known as:

    • Elasticity

    • Compression

    • Rarefaction

    • All of the above

    • None of the above

    Correct Answer
    A. Rarefaction
  • 27. 

    A Fourier Series analysis of a square wave would indicate:

    • Only partials and overtones

    • Only the fundamental frequency

    • Only even harmonics

    • Only odd harmonics

    • Odd and even harmonics

    Correct Answer
    A. Only odd harmonics
  • 28. 

    Interaural intensity differnces help us determine acoustic derectionality by _____________?

    • The amount of time it takes for low frequencies to diffract around the head

    • The amplitude differences of high frequencies between the two ears

    • The way the Pinna will 'color' the sound of low frequencies

    • The amplitude differences of low frequencies between the two ears

    • None of the above

    Correct Answer
    A. The amplitude differences of high frequencies between the two ears

Quiz Review Timeline (Updated): Mar 21, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

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  • Mar 21, 2022
    Quiz Edited by
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  • Jul 08, 2009
    Quiz Created by
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