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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. The attachment that holds a microphone in place on the mic stand; Comes in various shapes - sizes - and applications.
End Address
Clip
Neumann KM 184
Wind Screens
2. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
Ribbon Microphone
Subcardioid
AudioTechnica AT4051
SASS-P
3. Stereo configuration using a spaced pair 3-10 feet apart.
Pascals (Pa)
Fingerboard
Theatrophone
AB Stereo
4. The outer covering of a microphone.
Casing
Nuvistor Tube
Boom Placement Rule
Rode NT1A
5. 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.
Max SPL
Shiny Box 46MXL
OSHA Exposure Table
On -Axis
6. Early example of switchable polar patterns; Had both a dynamic and a ribbon capsule inside of it which when combined produced other polar patterns.
Condenser Diaphragm
Subkick
Altec/Western Electric 639
5 Common Microphone Transducers
7. Captures sounds arriving 90
Parabolic Systems
Distance Factor (DSF)
Cone
Vintage Tube Mic Precautions
8. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Doubling Ribbon Length
Pierre Curie
Dynamic Microphone
Voice Coil
9. Part of a mic stand that the mic stands on.
AKG D36
Legs
Measurement Mics
Null Angle
10. Developed the condenser microphone in 1916 at Bell Labs.
Distance Factor (DSF)
Shure SM81
E.C. Wente
Piezoelectric Effect
11. Condenser; Cardioid; End Address; 48V Required; Manufactured by Neumann; Consists of three compact miniature microphones; Has a gentle rise at about 9 kHz that provides tonal balance that is fresher and livelier.
FFT Analyzer
Neumann KM 184
Cardioid (Electrical Polar Pattern)
SASS-P
12. 2 - 4 ft. from player; Placed below the line of sight of the bell - rotated at about 30 degrees off axis - and tilted upward.
AKG D12
Ribbon Mic Characteristics
Sennheiser MD441
Trombone Mic Placement
13. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Microphone (Word Etymology)
Model 3B Carbon Microphone
Snare Drum Mic Placement
Clip
14. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Rear Sensitivity (Relative to Front)
Condenser Microphone
Voice Coil
Fukada Tree
15. Sounds that arrive from angles other than the 0
Neumann KM-84
ORTF
Crystal and Ceramic Mic Use
Off-Axis
16. Measurement of Sound Pressure; stated as being N/m2 with a Newton being a measurement of force equal to about 9.8 lbs; Equal to 94dB SPL
Kick Tunnel
Microphone Storage
Bass Amp Mic Placement
Pascals (Pa)
17. Big + & - (More front with less opposite rear)
Dynamic Microphone
Angle of Max Rejection
Types of Pre-Amps for Condenser Mics
Hypercardioid/Supercardioid (Electrical Polar Pattern)
18. An electromagnetic microphone - in which a thin - corrugated ribbon is suspended within a high magnetic flux field; Excellent transient response due to the small amount of acoustic energy required to move diaphragm.
Ribbon Microphone
AKG C414
Shure SM81
Crystal and Ceramic Mic Use
19. The first phantom powered condenser microphone designed for use by Georg Neumann for Norwegian State Television.
Crystal & Ceramic Microphones
Neumann KM-84
NOS
Hypercardioid
20. Term coined by Sir Charles Wheatstone derived from the Greek words 'micro' (small) & 'phon' (sound).
Microphone (Word Etymology)
Headstock
Highpass Filter
Shure SM81
21. Magnetic field opposite to that which presently exists; Do this on the bottom mic when miking a snare with two mics.
Reverse Polarity
Max SPL
Over/Over
Jecklin Disk
22. Stereo coincident pairing where the middle mic (usually a cardiod) is facing source and a bidirectional side mic is placed at 90
Mid/Side
5 Common Microphone Transducers
Examples of Piezoelectric Material
Omnidirectional (Electrical Polar Pattern)
23. Basket/grille made out of a specific type of copper wire to block protect the mic from physical damage and to protect the mic from stray RFI
Faraday Cage
Shure KSM Series
Pad
AKG C414
24. 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.
AKG C1000S
Backplate
Shure SM81
Model 3B Carbon Microphone
25. Keep in proper case; Never disassemble shockmounts
Microphone Storage
Parabolic Systems
RFI
Spherical Mic
26. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.
Crystal Mic Damage
Sennheiser MD441
Crystal & Ceramic Microphones
Transient Response
27. 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.
Percussion Mic Placement
Backplate
Shure KSM-353
Condenser Microphone
28. - Omnidirectional: 1 - Cardioid: 1.7 - Supercardioid: 1.9 - Hypercardioid: 2 - Bidirectional: 1.7
Cardioid (Electrical Polar Pattern)
Body
Distance Factor (DSF)
Supercardioid
29. Used to filter heating current in certain mics; Invented by Georg Neumann.
Sealed Ni-Cad Battery
Clip
Tube Condenser Microphone
Cardioid (Electrical Polar Pattern)
30. Used for stereo miking to ensure correct balance and imaging.
Neumann CMV3
Matched Pairs
Side Address
Ambient Sound Sensitivity
31. Dynamic; Cardioid; End Address; Manufactured by Shure; Considered the industry standard for live vocal performance microphones; One of the best- selling microphones in the world.
Altec/Western Electric 639
Shure SM58
Piezoelectric Effect
Capacitance
32. 4800 ft/sec
Leslie Cabinet
Boom Placement Rule
Speed of Sound Underwater
Pierre Curie
33. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Theatrophone
Rudolf Goerike & Ernest Pless
Pop Filter
Blumlein Pairing
34. Tube microphone capable of SPL's over 140dB.
On -Axis
Polar Pattern
OSHA Exposure Table
Neumann U67
35. Mic in which the diaphragm moves in response to sound waves and an attached pin/rod moves; Coil attached to pin/rod moves alone with the diaphragm.
Hypercardioid
Parabolic Systems
AB Stereo
Magnetic Microphone
36. Flat plate that controls or directs the flow of sound energy in a crystal/ceramic mic.
Baffle
Neumann U87
Near Coincident Pair
Distance Factor
37. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
Sensitivity
Microphone (Definition)
Damping
Neumann U87
38. The arm of the mic stand; Includes the angle adjust & telescopic adjust.
Subkick
Boom
Percussion Mic Placement
Hypercardioid/Supercardioid (Electrical Polar Pattern)
39. 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.
E.C. Wente
SPL Meter
Subcardioid
Electro Voice RE20
40. A gradual - continuous decrease in low frequency response.
Cone
Roll-Off
Bidirectional (Electrical Polar Pattern)
Clement Ader
41. Forward facing bipolar mics spaced 20cm apart.
Bass Amp Mic Placement
Faulkner
Coverage Angle
FFT Analyzer
42. Tough & rugged; Can work in extremely high SPL environments; Less responsive to transient frequencies b/c of diaphragm mass is heavier than sound waves.
Neumann U47
3:1 Rule
Distance Factor
Dynamic Mic Characteristics
43. Device used to calibrate sound pressure measurement devices; Emits a single 1 kHz frequency over a sustained period of time.
Trombone Mic Placement
Dual Mono
Pistonphone
M/S Stereo
44. DC Voltage Req'd for capsule polarizing voltage and internal mic preamps; 3 sources: External Power Supply Unit (PSU); Phantom Power; Battery.
Boom Placement Rule
Transducer Type
Sennheiser MD421
Powering Condenser Microphones
45. 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.
Soundfield
Rudolf Goerike & Ernest Pless
Rear Sensitivity (Relative to Front)
Pop Filter
46. Angle of maximum signal rejection in a microphone polar pattern.
Dynamic Microphone
FFT Analyzer
Trombone Mic Placement
Null Angle
47. Carbon; Ceramic/Crystal; Magnetic/Dynamic; Ribbon; Condenser
Nuvistor Tube
5 Common Microphone Transducers
SASS-P
Clutch
48. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Machine Head
Doubling Ribbon Length
Polar Pattern
Max SPL
49. Mounts on a single stand to provide for adjustable spacing and angling between mics.
Stereo Bar
Ribbon Microphone
Bidirectional
Magnetic Microphone
50. Omnidirectional: 0 - Cardioid: 8 - Supercardioid: 12 dB - Hypercardioid: 6 dB - Bidirectional: 0
Guitar Amp Mic Placement
Rear Sensitivity (Relative to Front)
DIN
Sealed Ni-Cad Battery