Microphones MCQs (Acoustical Engineering)
Microphones MCQs (Acoustical Engineering)
Discover an extensive repository of Microphones MCQs for Acoustical Engineering designed to reinforce your understanding of the subject. We offers valuable Microphones MCQ resource to assess your knowledge
1: What is A-Format in Ambisonics?
A. The rightmost recording channel in an ambisonic system
B. A standardized header format used to embed metadata in WAV files
C. The raw recording where each individual mic capsule has its own output and recording channel
D. A method of recording that only captures sounds coming from the front direction
2: At what distance are the two microphones in the AB miking technique spaced apart?
A. 10 to 12 inches
B. 2 to 4 inches
C. 6 to 8 inches
D. 12 to 48 inches
3: What is the process of a surface absorbing some or all of the energy of a colliding sound wave called?
A. Acoustic reflection
B. Acoustic absorption
C. Acoustic transmission
D. Acoustic reverberation
4: What is acoustic absorption?
A. The process of a surface absorbing some or all of the energy of a colliding sound wave.
B. The process of a sound wave hitting a surface.
C. The process of a surface reflecting some or all of the energy of a colliding sound wave.
D. The process of a surface reducing reverberation.
5: What is a microphone's acceptance angle also known as?
A. Coverage Angle or Pickup Angle
B. Sound Pattern
C. On-Axis Response
D. Rejection Angle
6: What is an acoustic labyrinth?
A. The study of sound and its transmission
B. A way to increase the volume of a sound
C. A method of recording sound onto a medium
D. A series of ports and pathways that act to delay sound from reaching the rear of the mic diaphragm.
7: What is the study of acoustics mainly concerned with?
A. Electrical signals
B. Mechanical waves in gases, liquids, and solids
C. Sound recording
D. Sound waves in air
8: What is an active microphone?
A. A microphone that requires external power to function
B. A microphone that amplifies sound
C. A microphone that is powered by a battery
D. A microphone that does not require external power to function
9: What is the main difference between AC and DC?
A. AC periodically reverses direction, while DC does not.
B. AC is used in audio equipment while DC is not.
C. AC has a higher voltage than DC.
D. AC is better for the environment than DC.
10: What is alternating current?
A. A current that only flows in one direction
B. An electrical current that periodically reverses direction.
C. An electrical current that is not affected by magnetism.
D. A current that does not reverse direction
11: What is an ambient microphone purposed with?
A. Capturing ambient sounds
B. Creating ambient sounds
C. Capturing live sound
D. Capturing mid-side sound
12: Ambient microphones are used to capture which of the following
A. Dialogues
B. Ambient sounds
C. Hissing noise
D. Subwoofer sounds
13: How many directional mic capsules are needed for an ambisonic array?
A. 1
B. 4
C. 3
D. 2
14: What is an ambisonic array?
A. An array of 4 or more microphones pointed in different directions
B. 3-D sonic image with compatible playback formats
C. A single microphone
D. An ambisonic array includes 4 or more coincident directional mic capsules pointed optimally to capture a 3-D space.
15: How many capsules are in an Ambisonic microphone?
A. 3
B. 1
C. 2
D. 4-8
16: One ampere is equal to a flow of _____ per second.
A. One second
B. One volt
C. One watt
D. One coulomb
17: What is the SI unit of electrical current?
A. Watt
B. Ampere
C. Voltage
D. Resistance
18: What is electrical amplification?
A. The process of increasing the power of an electrical signal with a microphone.
B. The process of turning sound waves into electrical signals.
C. The process of increasing the power of an electrical signal with an amplifier.
D. The process of turning electrical signals into sound waves.
19: What is the amplitude of a sound wave often measured in?
A. Millivolts
B. DB SPL or Pascals
C. DBV
D. DBu
20: How does a microphone convert sound energy to an electronic signal?
A. By electrical impulses
B. By sound waves
C. By binary digital data
D. By analog AC voltages
21: Microphones convert sound energy to electronic analog mic signals in order to ______
A. Represent sound
B. Amplify sound
C. Create sound
D. Store sound
22: What is the change in a mic's signal due to the overdriving of the electronic circuits, transistors, and tubes?
A. Analog distortion
B. Noise distortion
C. Digital distortion
D. Intermodulation distortion
23: What is analog distortion?
A. A type of microphone
B. The change in a mic's signal due to the overdriving of the electronic circuits, transistors, and tubes.
C. A sound editing software
D. A sound effect
24: What does an ADC do?
A. Converts analog signals to digital
B. Converts digital signals to analog
C. Boosts audio signals
D. Converts AC to DC power
25: ADCs come as standalone units, in audio interfaces, and even inside of which type of mics?
A. Electrical mics
B. Analog mics
C. USB and digital mics
D. Digital mics
26: What is an anechoic chamber?
A. A room where an echo can be heard.
B. A room with surfaces that completely absorb sound and electromagnetic waves.
C. A room with surfaces that absorb SOME sound and electromagnetic waves.
D. A room with surfaces that reflect sound and electromagnetic waves.
27: What is an angle of maximum rejection in a microphone?
A. It is an angle from its axis in which it is the least directional.
B. It is an angle from its axis in which it is the least sensitive to sound.
C. It is an angle from its axis in which it is the most sensitive to sound.
D. It is an angle from its axis in which it is the most directional.
28: Why are antennae important to microphones?
A. Antennae are used to receive the mic signal wirelessly.
B. Antennae help to propagate the mic signal through space.
C. Antennae are used to transmit the mic signal wirelessly.
D. Antennae are essential components of wireless microphone systems in both transmitters and receivers.
29: What is the purpose of an antenna in a wireless microphone system?
A. To receive the mic signal
B. To provide power to the mic signal
C. To serve as a critical interface between the mic signal and the radio wave propagation of that mic signal
D. To amplify the mic signal
30: What is the purpose of the artificial head miking technique?
A. To create an artificial stereo response.
B. To provide a more natural sound for live performances.
C. To replicate a natural-sounding stereo response.
D. To improve the sound quality of a recording.
31: Why is an asterisk array used?
A. To test the sound of each mic before selecting their favourite
B. It's best to set the mics to have the same signal levels
C. So the engineer, producer, and/or musician can test the sound of each mic
D. To have the mics pointing toward a single point
32: Attenuation of electrical energy is the reduction of signal strength in an electrical circuit. True or false?
A. True
B. False
33: What does attenuation of electrical energy mean?
A. The increase of signal strength in an electrical circuit
B. The gradual decrease in a sound wave‘s power
C. The amplification of sound energy
D. The reduction of signal strength in an electrical circuit
34: What does the term "audio" refer to?
A. The ability to hear
B. The process of recording, transmitting, or reproducing sound
C. Sound, especially sound that has been recorded, transmitted, or reproduced.
D. The study of sound
35: What is the definition of audio?
A. The study of hearing
B. Sound that has been recorded, transmitted, or reproduced.
C. The study of light
D. The study of sound
36: The Audio Engineering Society (AES) is headquartered in which city?
A. Los Angeles
B. New York City
C. San Francisco
D. Chicago
37: When was the Audio Engineering Society founded?
A. 1950
B. 1949
C. 1948
D. 1951
38: How many types of inputs does an audio interface generally have?
A. 1
B. 4
C. 3
D. 2
39: What is an audio interface?
A. A device that creates sound
B. A device that records sound
C. A device that allows communication between computers and mics, instruments, loudspeakers and monitors.
D. A device that amplified sound
40: What is the most common type of audio mixer?
A. Microphones
B. Mixing consoles and DAWs
C. Speakers
D. Headphones
41: On what side of the microphone should the sound source be for the cleanest results?
A. On the same side as the diaphragm's front side
B. On the opposite side of the diaphragm's front side
C. In front of the diaphragm
D. Behind the diaphragm
42: On which side of the mic should sound waves be coming from for the cleanest results?
A. The top
B. The back side
C. The front side
D. The bottom
43: What is the imaginary line perpendicular to the mic diaphragm pointing away from the center of the diaphragm's front side called?
A. Directional mic
B. Mic diaphragm
C. Microphone axis
D. Sound wave
44: What is the angle between two microphone axes in a two-mic stereo miking technique?
A. 45 degrees
B. Axis angle
C. 90 degrees
D. 180 degrees
45: What is the axis angle?
A. The angle between two microphone axes in a two-mic stereo miking technique
B. The angle of sound waves in relation to the microphone
C. The angle of the microphone in relation to the sound source
D. The angle of the sound source in relation to the microphone
46: What is B-format in ambisonics?
A. The mixing of different tracks to create one B-format signal
B. A production technique in ambisonics
C. The proper positioning of the individual raw (A-Format) ambisonic mic signals.
D. A type of microphone used in ambisonics
47: What is a back electret condenser microphone?
A. A device that helps to amplify sound
B. A condenser mic with a permanently charged capsule due to electret material being fixed to its stationary backplate.
C. A microphone that uses electricity to increase the audio signal.
D. A microphone that does not require a power source
48: What is the other plate of a condenser microphone's parallel-plate capsule?
A. The mic signal
B. The backplate
C. The diaphragm
D. The sound pressure
49: What is a microphone baffle?
A. A baffle is the physical housing around a ribbon mic's element.
B. A baffle is a device used to reflect sound waves.
C. A baffle is a sound-absorbing material used to reduce reverberation in a room.
D. A baffle is a device used to reduce the intensity of sound waves.
50: What is the purpose of a baffle on a microphone?
A. It is necessary for electromagnetic induction and proper dynamic ribbon mic function.
B. It is the physical housing around a ribbon mic's element.
C. It holds the ribbon diaphragm in position and protects the sides of the ribbon.
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Microphones MCQs (Acoustical Engineering)
