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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. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.
Types of Field Recording
Hydrophone
Headstock
Shure SM81
2. Pure polar pattern with which the microphone is equally sensitive in all directions; Great for capturing ambiance or room reverb.
Ribbon Microphone Sensitivity
Omnidirectional
Diaphragm
Subcardioid (Electrical Polar Pattern)
3. 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
Shure Unidyne Series
Neumann CMV3
Rear Sensitivity (Relative to Front)
4. Close mic placement can help guard again bleed from other instruments and takes advantage of proximity effect; Center of cone = Brighter; Outside of cone = Darker; Reflections can create phase issues (can be reduced by putting the cabinet at an angle
Neumann KM-84
DIN
Bass Amp Mic Placement
Guitar Amp Mic Placement
5. The property of certain crystals that causes them to produce voltage when a mechanical pressure such as sound vibrations is applied to them; Originates from Greek word 'piezein' (to compress).
Backplate
Dual Mono
Piezoelectric Effect
Shure KSM-353
6. 12V DC; 24V DC; 48V DC
Soundfield
3 Voltages for Phantom Power
Sealed Ni-Cad Battery
Electret (Word Etymology)
7. Considered to be the best mic ever made; VF14 Tube.
Motor
Noise
Neumann U47
Wind Screens
8. The moving plate of a condenser capacitor; Constructed of a thin piece of metal or thin plastic - such as Mylar - coated with gold or nickel; .05 - 10 microns thick.
Condenser Diaphragm
Sennheiser e604
Boom
Nuvistor Tube
9. First to mass produce the condenser microphone in 1929; Improved cutting lathe technology by developing direct drive turntables; Invents 48V Phantom Power to power the new condenser microphone for Norwegian State Television.
Georg Neumann
Types of Pre-Amps for Condenser Mics
Electret (Word Etymology)
Pickup
10. To oppose with equal weight or force as in the length of the boom arm versus the weight of the microphone.
Counterbalance
AudioTechnica AT4040
Field Mixer
Shure KSM-353
11. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Pressure Capsules
Wind Screens
Bidirectional (Electrical Polar Pattern)
Telefunken ELA- M251
12. Commonly utilize large diaphragm dynamic mics.
Sensitivity
Bass Amp Mic Placement
Sennheiser MD441
Pistonphone
13. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
SASS-P
Fundamental Frequency
Examples of Piezoelectric Material
RCA 44BX
14. Moving a conductor (a coil of wire) through a magnetic field will cause a voltage to be induced across the conductor.
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15. Vintage Tube Mics hold voltage after being unplugged; Be sure grounds are connected to power cord and that the charge has left microphone prior to striking.
Neumann U87
Vintage Tube Mic Precautions
Shure KSM Series
Decca Tree
16. Shows the level of self- noise from a microphone's internal electronics; Measured in dB (decibels).
Noise
Neumann U67
End Address
Parabolic Systems
17. 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.
Shiny Box 46MXL
NOS
Bidirectional
AKG C1000S
18. The attachment that holds a microphone in place on the mic stand; Comes in various shapes - sizes - and applications.
Voice Coil
Pressure Capsules
Legs
Clip
19. This is what is measured to produce an electrical signal in condenser mics; This changes as sound waves strike the diaphragm causing the distance to the back plate to change.
Shure SM81
Sensitivity
Arrays
Capacitance
20. Used to make sure you have accurate angles & capsule spacing when miking in stereo.
Trombone Mic Placement
Mono
Protractor & Ruler
Sennheiser MD441
21. 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.
SPL Meter
Matched Pairs
Parabolic Systems
AKG C1000S
22. 4 to 6 ft. from the player; Mic should be placed below the line of sight of the bell - rotated at about 40 degrees off- axis - and tilted upward.
Baffle
Coverage Angle
Trumpet Mic Placement
Pistonphone
23. Known as 'The Bottle' this was the first mass - produced condenser mic.
Stereo
Powering Condenser Microphones
Neumann CMV3
Proximity Effect
24. Early example of switchable polar patterns; Had both a dynamic and a ribbon capsule inside of it which when combined produced other polar patterns.
Nuvistor Tube
Altec/Western Electric 639
FFT Analyzer
Reisz Marble Mic
25. Phenomenon causing carbon microphones to lose sensitivity as granules become packed together over extended use; To remedy problem mic is gently rapped on hard surface.
Packing
Field Mixer
Neumann CMV3
Clutch
26. Often look like large diaphragm studio mics; Talk or sing into the side of the microphone.
Boom Placement Rule
Harvey Fletcher
A-Weighting
Side Address
27. Developed the condenser microphone in 1916 at Bell Labs.
E.C. Wente
Mid/Side
Tuning Keys
Machine Head
28. Filters only the bandwidth of frequencies that are supposed to (or allowed) to pass through; High and Low Pass are examples.
Bandpass
Sensitivity
DIN
End Address
29. 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.
MSM
AudioTechnica AT4051
Near Coincident Pair
Over/Over
30. 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.
Neumann CMV3
Pressure Gradient Capsules
Shure SM58
Altec/Western Electric 639
31. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Model 3B Carbon Microphone
Capacitance
Theatrophone
Examples of Piezoelectric Material
32. 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'.
Fundamental Frequency
Near Coincident Pair
Decca Tree
Pickup
33. The first dynamic microphone with changeable polar patterns.
Alan Blumlein
AKG D36
Rode NT1A
Supercardioid
34. 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.
Guitar Amp Mic Placement
Ribbon Microphone
Fingerboard
Stereo Bar
35. 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.
Blumlein Pairing
AudioTechnica AT4051
Backplate
Cardioid (Electrical Polar Pattern)
36. Sounds that arrive at the 0
Dynamic Microphone
On -Axis
Fukada Tree
Mid/Side
37. Cable wrapping method that reduces interference and makes it easier to unravel the cable.
Proximity Effect
AKG DYN60
Over/Under
Phasing
38. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Sennheiser MD421
Legs
Voice Coil
Rudolf Goerike & Ernest Pless
39. One of the world's greatest condenser microphones prized for the CK12 capsule.
AKG C12
Mono
Null Angle
Types of Pre-Amps for Condenser Mics
40. Demonstrated the first stereophonic transmissions via the Theatrophone in 1881.
Ribbon Microphone
Clement Ader
Voice Coil
Lowpass Filter
41. Digital device used to Fourier Forms; Used to measure the specific number of sine waves in a specific frequency in a specific setting.
Pad
FFT Analyzer
Field Mixer
Magnetic Induction Voltage
42. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
OSHA Exposure Table
Rode NT1A
Types of Field Recording
Condenser Diaphragm
43. 1 Bidirectional & 1 Cardioid placed coincidentally; Bidirectional faces left and right and cardioid faces the sound; Gives control of the focus and size of the stereo image;
AKG D12
AKG C414
M/S Stereo
Goals of Sound Effects
44. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
Coincident (Definition)
Pressure Capsules
Voice Coil
Transient Response
45. 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.
Subkick
AKG C414
Rudolf Goerike & Ernest Pless
Voice Coil
46. Shows the total range of the mic's internal pre- amp; Measured in dB (decibels).
Real Time Analyzer (RTA)
DIN
Dynamic Range
Shockmount
47. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Altec/Western Electric 639
Packing
Jecklin Disk
Sennheiser MD441
48. Will yield a 6dB increase in output - but will cause a loss of high frequency response.
Subkick
Doubling Ribbon Length
OSHA Exposure Table
Types of Pre-Amps for Condenser Mics
49. The first AKG dynamic microphone.
Microphone Care...
Crystal Mic Damage
Capacitor
AKG DYN60
50. Used in production sound for multiple perspectives on the set; Used in Audio Post to record a number of mics into a recorder with minimal set- up & tear down.
Examples of Piezoelectric Material
Field Mixer
Bass Amp Mic Placement
Blumlein Pairing