Eric - Intro To Audio
Intro to Audio Quiz for Eric.
- 1.
The acronym ASDR stands for:
- A.
Acoustic Dynamic System Reduction
- B.
Attack Dynamics Suspension Release
- C.
Attack Decay Sustain Release
- D.
Attack Duration Sustain Reduction
- E.
Attack Dynamics Sustain Release
Correct Answer
C. Attack Decay Sustain Release -
- 2.
A reverberent field can be broken down into:
- A.
Direct Sound
- B.
Early Reflections
- C.
Reverberation
- D.
All of the Above
- E.
None of the Above
Correct Answer
D. All of the Above -
- 3.
An anechoic chamber is a room __________________.
- A.
That is very small
- B.
Without sound
- C.
Without reflections
- D.
With delay
- E.
With added range
Correct Answer
C. Without reflections -
- 4.
A sine wave can be defined as:
- A.
A pure tone
- B.
A simple wave
- C.
A frequency devoid of harmonics or overtones
- D.
All of the above
- E.
None of the above
Correct Answer
D. All of the above -
- 5.
Which octaves are referred to as the 'sonic horizon' or the 'sonic anchor'?
- A.
1st & 2nd
- B.
3rd & 4th
- C.
5th, 6th, and 7th
- D.
8th
- E.
9th
Correct Answer
B. 3rd & 4th -
- 6.
Reflection of sound occurs when:
- A.
Sound waves bend around an object
- B.
Sound waves bounce off an object
- C.
Sound waves change direction caused by passing through a different medium
- D.
Multiple repeats of a sound become closely spaced with time creating a 'warm' sound
- E.
None of the above
Correct Answer
B. Sound waves bounce off an object -
- 7.
Wavelength is equal to
- A.
Frequency/speed of sound
- B.
Length x width
- C.
Amplitude/frequency
- D.
Frequency x speed of sound
- E.
Velocity/frequency
Correct Answer
E. Velocity/frequency -
- 8.
What is the speed of sound in air at 'standard' temperature and pressure?
- A.
1000 m/sec
- B.
1130 ft/sec
- C.
343 ft/sec
- D.
1130 m/sec
- E.
650 miles/h
Correct Answer
B. 1130 ft/sec -
- 9.
Which frequencies are least directional?
- A.
Low frequencies
- B.
Low-mid frequencies
- C.
Mid range frequencies
- D.
High-mid frequencies
- E.
High frequencies
Correct Answer
A. Low frequencies -
- 10.
The musical term for the doubling (or halving) of frequency is
- A.
Pitch
- B.
Octave
- C.
Sharp
- D.
Harmonic
- E.
Inversion
Correct Answer
B. Octave -
- 11.
Breaking down an acoustic waveform graphically into its frequency components is called
- A.
A Fourier Series Analysis
- B.
Diffusion
- C.
Time delay spectronomy
- D.
Rarefaction
- E.
Separation
Correct Answer
A. A Fourier Series Analysis -
- 12.
The 'time' taken for a sound wave to complete one cycle is known as the:
- A.
Frequency
- B.
Amplituted
- C.
Peak value
- D.
Wavelength
- E.
Period
Correct Answer
E. Period -
- 13.
The number of cycles per second of sound wave is expressed in
- A.
Amplitude
- B.
Seconds
- C.
Hertz
- D.
Nanowebers
- E.
DB/octave
Correct Answer
C. Hertz -
- 14.
Given a graphical representation, the negative or downward part of an acoustical wave in air is called:
- A.
Compression
- B.
Reduction
- C.
Rarefaction
- D.
Amplitude
- E.
Expansion
Correct Answer
C. Rarefaction -
- 15.
Fletcher-Munson curves are a graphical representation of:
- A.
Spl
- B.
Frequency response
- C.
Phase angle
- D.
Equal loudness
- E.
Signal to noise ratio
Correct Answer
D. Equal loudness -
- 16.
The smallest amplitude change the ear can perceive in a complex wave when you're not expecting a change is:
- A.
3 dB
- B.
1 dB
- C.
6 dB
- D.
0 dB
- E.
10 dB
Correct Answer
A. 3 dB -
- 17.
Harmonics are:
- A.
Floating point multiples of the fundamental frequency
- B.
Only odd number multiples of the fundamental frequency
- C.
Only even number multiples of the fundamental frequency
- D.
Whole number multiples of the fundamental frequency
- E.
Overtones that have no relation to the fundamental frequency
Correct Answer
D. Whole number multiples of the fundamental frequency -
- 18.
Which part of the body combines the signals from both ears?
- A.
The outer ear
- B.
The middle ear
- C.
The inner ear
- D.
The brain stem
- E.
The brain
Correct Answer
D. The brain stem -
- 19.
When a vibrating object moves inwardly, it's effect of the air molecules surrounding it is known as:
- A.
Elasticity
- B.
Compression
- C.
Rarefaction
- D.
All of the above
- E.
None of the above
Correct Answer
C. Rarefaction -
- 20.
'Constructive interference' of sound waves that are partially out of phase is defined as
- A.
Phase that cancels the sound completely
- B.
Phase that increases a sound's amplitude
- C.
Phase that decreases a sound's amplitude
- D.
A & c
- E.
None of the above
Correct Answer
B. Phase that increases a sound's amplitude -
- 21.
'Pitch' is defined as:
- A.
The highness or lowness of a sound
- B.
The loudness or softness of a sound
- C.
The characteristic tonal quality of a sound
- D.
The speed of a sound
- E.
A sound's sonic time pattern
Correct Answer
A. The highness or lowness of a sound -
- 22.
Interaural intensity differnces help us determine acoustic derectionality by _____________?
- A.
The amount of time it takes for low frequencies to diffract around the head
- B.
The amplitude differences of high frequencies between the two ears
- C.
The way the Pinna will 'color' the sound of low frequencies
- D.
The amplitude differences of low frequencies between the two ears
- E.
None of the above
Correct Answer
B. The amplitude differences of high frequencies between the two ears -
- 23.
The name for the bending of a soundwave around an obstacle is known as:
- A.
Resonance
- B.
Refraction
- C.
Diffusion
- D.
Diffraction
- E.
Rarefaction
Correct Answer
D. Diffraction -
- 24.
A Fourier Series analysis of a square wave would indicate:
- A.
Only partials and overtones
- B.
Only the fundamental frequency
- C.
Only even harmonics
- D.
Only odd harmonics
- E.
Odd and even harmonics
Correct Answer
D. Only odd harmonics -
- 25.
The 'middle ear' contains the:
- A.
Tympanic membrane
- B.
Hammer, anvil, and stirups
- C.
Cochlea
- D.
Auditory Nerve
- E.
Basilar Membrane
Correct Answer
B. Hammer, anvil, and stirups -
- 26.
One complete cycle of a 100Hz tone is _____ in length when traveling in air at 68 degrees.
- A.
1.13 ft
- B.
11.3 ft
- C.
113 ft
- D.
1130 ft
- E.
None of the above
Correct Answer
B. 11.3 ft -
- 27.
'Timbre' is defined as
- A.
The highness or lowness of a sound
- B.
The characteristic tonal quality of a sound
- C.
The speed of a sound
- D.
A sound's sonic time pattern
- E.
A sound's changing volume and/or pitch
Correct Answer
B. The characteristic tonal quality of a sound -
- 28.
The 'midrange' frequencies (5th, 6th, & 7th octaves) are located between:
- A.
20Hz-80Hz
- B.
81Hz-320Hz
- C.
2.57kHz-3.5kHz
- D.
3.56kHz-5.12kHz
- E.
None of the above
Correct Answer
E. None of the above -
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Current Version
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Mar 21, 2022Quiz Edited by
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Jul 08, 2009Quiz Created by
Kerryoke2005
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