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Test your basic knowledge |
Microphones Theory
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Device used to measure sound loudness; Often used to measure and balance the loudness of each speaker in a home - studio - or live venue or theater system.
Pressure Capsules
Stereosonic
SPL Meter
Pickup
2. Pair of omni mic elements mounted on opposite sides of a spherical shaped capsule.
Condenser Microphone
Spherical Mic
Highpass Filter
Microphone Storage
3. Rotating speaker cabinet design featuring separate treble and bass drivers that can switch speeds; Speaker rotate from front to back creating a Doppler effect; Resulted in new spatial perception for each note. Stereo miked up top and single miked at
Mono
Leslie Cabinet
Real Time Analyzer (RTA)
Casing
4. Never store mic in a damp place; Keep dirt & dust away from the mic; Never 'pop' test the mic; Check if a mic is working by lightly scratching the grill.
Electret Condenser
Microphone Care...
FFT Analyzer
Roswellite
5. Most sensitive to sounds arriving from the front while rejecting sounds from rear; Shaped like a heart; Rejects most signals from 180
Cardioid
Microphone (Definition)
3:1 Rule
C-Weighting
6. Mounts on a single stand to provide for adjustable spacing and angling between mics.
Stereo Bar
Terry Bozzio
AKG D36
Voice Coil
7. Omnidirectional: 360
Ribbon Mic Characteristics
Increasing Output Voltage in Ribbon Mics
End Address
Coverage Angle
8. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.
Fundamental Frequency
Over/Over
Pressure Capsules
Microphone (Word Etymology)
9. Another name for condenser microphone.
Carbon Microphone Uses
Shure SM58
MSM
Capacitor Microphone
10. Used by government agencies to determine safe sound exposure levels (in dB) over a period of time; 85 - 90 dB = 16 hrs. of safe exposure time at 85 dB; Decreases to 8 hrs. of safe exposure time at 90 dB.
OSHA Exposure Table
Matched Pairs
Microphone (Definition)
Angle of Max Rejection
11. 4 coincident mics each positioned at 90
M/S Stereo
Omnidirectional
Counterbalance
LRFB
12. Divisions on the fingerboard which represent the position of a specific note or tone.
Neumann KM 184
Highpass Filter
AKG C1000S
Frets
13. Proportional to: Magnetic field strength; Length of the conductor; Velocity of conductor moving through the magnetic field.
Magnetic Induction Voltage
Legs
Distance Factor (DSF)
Phase Ports
14. Condenser; Multiple; Side Address; 48V Required; Manufactured by AKG; Dual Diaphragm; Nine selectable pickup patterns; Peak Hold LED; The reference microphone for almost all comparative microphone tests.
AKG C414
Rode NT1A
Side Address
Sealed Ni-Cad Battery
15. Coincident stereo miking techniques that has two microphone diaphragms occupying (as near as possible) the same space; Capsules often on top of each other; Not good for noisy locations.
X/Y
Coincident Pair
Guitar Amp Mic Placement
Magnetic Induction Voltage
16. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.
Decca Tree
LRFB
Pressure Gradient Capsules
FFT Analyzer
17. Forward facing bipolar mics spaced 20cm apart.
Bidirectional
Faulkner
Decca Tree
Dynamic Microphone
18. Fixed plate that is charged with polarized voltage found in condenser mics; Usually constructed of milled brass; Has a number of holes drilled in it to provide damping for diaphragm.
Backplate
Pressure Gradient Capsules
Trombone Mic Placement
Cardioid (Electrical Polar Pattern)
19. The arm of the mic stand; Includes the angle adjust & telescopic adjust.
Boom
Near Coincident Pair
Binaural Mic
Arrays
20. Condenser; Cardioid; End Address; Manufactured by Shure; Small condenser design that is great for instrument recording.
Stereo
Shure SM81
Pad
Coincident (Definition)
21. Barrier made of shaped wire covered with a piece of nylon that is placed between a sensitive mic and the talent to avoid damage to the diaphragm of the mic.
Pop Filter
Proximity Effect
Striking
Highpass Filter
22. Measurement similar to how our hearing works in frequency response charts.
Cardioid (Electrical Polar Pattern)
A-Weighting
Decca Tree
RFI
23. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
SASS-P
Distance Factor (DSF)
Transducer Type
Carbon Microphone
24. When using two microphones reverse the polarity of the bottom mic.
Over/Over
Sealed Ni-Cad Battery
Snare Drum Mic Placement
Microphone Storage
25. One of the world's greatest condenser microphones prized for the CK12 capsule.
AKG C12
Shiny Box 46MXL
Microphone (Word Etymology)
Neumann U67
26. Stereo configuration using a spaced pair 3-10 feet apart.
Shure KSM Series
AB Stereo
AKG DYN60
Spaced Pairs
27. Considered to be the best mic ever made; VF14 Tube.
Speed of Sound Underwater
Neumann U47
Dynamic Range
3:1 Rule
28. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
MSM
Angle of Max Rejection
Model 3B Carbon Microphone
Voice Coil
29. The combination of the ribbon and magnet in a ribbon microphone.
Max SPL
Subcardioid (Electrical Polar Pattern)
Motor
Terry Bozzio
30. Condenser; Cardioid/Hypercardioid; End Address; 48V Required; Manufactured by AKG; Can be powered by internal 9 V battery for field recording; Improves clarity of speech with the PB 1000 Presence Boost Adapter.
Sennheiser MD441
Subcardioid
AKG C1000S
Dynamic Mic Characteristics
31. Used to make sure you have accurate angles & capsule spacing when miking in stereo.
AudioTechnica AT4051
Microphone Storage
Mono
Protractor & Ruler
32. The part of the guitar you turn to tune the strings in order to get the right sound out of the guitar when one plays.
Capacitor
Polar Pattern
Tube Condenser Microphone
Tuning Keys
33. German broadcasting stereo mic technique; An X-Y type with the mics 20cm apart and at a 90
Sensitivity
Body
DIN
Mid/Side
34. + (only); (Front capsule alone)
Cardioid (Electrical Polar Pattern)
Model 3B Carbon Microphone
Stereo
Over/Under
35. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
Ambient Sound Sensitivity
Counterbalance
Carbon Microphone Uses
Types of Field Recording
36. The method by which microphones are classified.
Examples of Piezoelectric Material
Bass Amp Mic Placement
Transducer Type
Machine Head
37. Cable wrapping method that reduces interference and makes it easier to unravel the cable.
Trumpet Mic Placement
Snare Drum Mic Placement
Over/Under
Field Mixer
38. When using multiple microphones - the distance between microphones should be at least 3 times the distance from each microphone to its intended sound source.
Sennheiser MD421
LRFB
Near Coincident Pair
3:1 Rule
39. Stereo coincident pairing where the middle mic (usually a cardiod) is facing source and a bidirectional side mic is placed at 90
Mid/Side
Harvey Fletcher
Omnidirectional (Electrical Polar Pattern)
Neumann U47
40. Pair of cardioids facing to the front and rear - plus a sideways - facing figure 8; Mid- sides pair plus another rear- facing cardioid which is combined with the same Figure 8 mic for the surrounds.
Guitar Amp Mic Placement
Rear Sensitivity (Relative to Front)
MSM
Lowpass Filter
41. Used for stereo miking to ensure correct balance and imaging.
M/S Stereo
Matched Pairs
Cardioid (Electrical Polar Pattern)
Percussion Mic Placement
42. A 3- mic array using omni mics with left - right and center placement; Center is placed about 5 ft. closer to the source to eliminate 'holes' in the middle and the center levels are reduced for an even sound; Forms a triangle.
Decca Tree
Doubling Ribbon Length
Nuvistor Tube
Headstock
43. Big + & + (More front with less positive rear)
Measurement Mics
Subcardioid (Electrical Polar Pattern)
Decca Tree
Spherical Mic
44. Dynamic; Cardioid; End Address; Manufactured by Shure; Popular musicians' choice due to its sturdy construction and ability to work well with instruments that produce high sound pressure levels.
Sealed Ni-Cad Battery
Shure SM57
Roswellite
Shure Unidyne Series
45. Coincident pairing that is at 90
AudioTechnica AT2020
Stereosonic
Rode NT1A
Microphone (Word Etymology)
46. A stereo miking technique similar to coincident pair - where the mics are set up with some distance between them; Distance and angle of microphones may differ; Creates a more defined stereo image; Produces very sharp images; Provides more 'air'.
Nuvistor Tube
Spherical Mic
Near Coincident Pair
Body
47. - Omnidirectional: 1 - Cardioid: 1.7 - Supercardioid: 1.9 - Hypercardioid: 2 - Bidirectional: 1.7
SPL Meter
A-Weighting
Diaphragm
Distance Factor (DSF)
48. Condenser; Cardioid; Side Address; 48V Required; Large Diaphragm; Manufactured by Rode; Widely recognised as the world's quietest studio microphone; Ideal for vocals - voiceover - and acoustic instruments.
Rode NT1A
5 Common Microphone Transducers
Faraday's Law of Magnetic Induction
Goals of Sound Effects
49. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
RCA 44BX
Cardioid
Sensitivity
Crystal Mic Damage
50. Aluminum Ribbon - Bi-Polar (Figure 8); Side Address; Manufactured by Shiny Box; Buttery mid- range improves digital recordings and smooths out modern treble; Best on drums - piano - overheads - and vocals where treble is focused.
Shiny Box 46MXL
AKG C12
5 Common Microphone Transducers
Pressure Capsules