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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. + & + (Front & rear in equal positive amounts)
Omnidirectional (Electrical Polar Pattern)
Boom Placement Rule
Legs
Protractor & Ruler
2. Big + & - (More front with less opposite rear)
Coverage Angle
Shure SM58
Over/Over
Hypercardioid/Supercardioid (Electrical Polar Pattern)
3. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Neumann U87
Model 3B Carbon Microphone
Sennheiser MD421
Off-Axis
4. Utilized primarily on condenser and ribbon mics to isolate it from vibrations that might otherwise be transmitted to the microphone through the mic stand.
Stereo
Stereosonic
Crystal and Ceramic Mic Use
Shockmount
5. Microphone with 4 large diaphragm condenser capsules; 3 bidirectional and 1 omni; Can be combined to make any polar pattern.
Transient Response
Lowpass Filter
Soundfield
Ambient Sound Sensitivity
6. DC Voltage Req'd for capsule polarizing voltage and internal mic preamps; 3 sources: External Power Supply Unit (PSU); Phantom Power; Battery.
Dynamic Range
Powering Condenser Microphones
Speed of Sound Underwater
Crystal & Ceramic Microphones
7. The lowest - and usually most intense - frequency of a complex sound; Most often perceived as the sound's basic pitch.
Neumann U67
Faulkner
Theatrophone
Fundamental Frequency
8. Modeled to mimic a human head for extremely good spatialization; Shaped like a human head.
Binaural Mic
Measurement Mics
Shure SM81
FFT Analyzer
9. Sub- frequency (below 100Hz) capture device designed for use with kick drums and floor toms as an alternative or supplement to a traditional microphone.
Shiny Box 46MXL
Protractor & Ruler
Sennheiser e604
Subkick
10. 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.
Shiny Box 46MXL
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Coincident Pair
Measurement Mics
11. One of the oldest mics; Diaphragm mounted on & compresses cup of tiny granules of carbon (100 microns big) that increase current flow when compressed by sound waves and vary electrical current; Also called Resistance Mics;
Frets
Carbon Microphone
AKG D36
Georg Neumann
12. Occupying the same space and time.
Coincident (Definition)
5 Common Microphone Transducers
Ribbon Microphone Sensitivity
Capacitor
13. Tube microphone capable of SPL's over 140dB.
Neumann U67
Omnidirectional (Electrical Polar Pattern)
Electret Condenser
Subcardioid
14. Dynamic; Cardioid; End Address; Manufactured by Electro Voice; Large Diaphragm; Humbucking Coil; Bass Roll Off Switch; Minimizes proximity effect; Ideal for broadcasting and sound engineering techniques.
Capacitor
AKG D36
Electro Voice RE20
Faraday Cage
15. Works exactly like condenser mic but one of the two plates is manufactured as a capsule with a permanent static charge so there is no external power source necessary; Requires phantom or battery to charge internal mic preamp.
Electret Condenser
Tuning Keys
Clip
Speed of Sound Underwater
16. Commonly utilize large diaphragm dynamic mics.
Mid/Side
Bass Amp Mic Placement
Spaced Pairs
Sennheiser MD441
17. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Voice Coil
Magnetic Microphone
Sennheiser e604
Telefunken ELA- M251
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.
Interference Tube...
Backplate
Shure Unidyne Series
FFT Analyzer
19. One of the world's greatest condenser microphones prized for the CK12 capsule.
AKG DYN60
Tube Condenser Microphone
Backplate
AKG C12
20. Will yield a 6dB increase in output - but will cause a loss of high frequency response.
Magnetic Induction Formula
Doubling Ribbon Length
Proximity Effect
Guitar Amp Mic Placement
21. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Max SPL
Dynamic Microphone
Magnetic Induction Voltage
Crystal & Ceramic Microphones
22. 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).
Protractor & Ruler
Transient Response
Piezoelectric Effect
AKG C1000S
23. Polar pattern produced when you add a little bit of bidirectional to the omni pattern.
Subcardioid
Omnidirectional (Electrical Polar Pattern)
Types of Field Recording
Bidirectional
24. 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
Crystal Mic Damage
Supercardioid
Diaphragm
25. German broadcasting stereo mic technique; An X-Y type with the mics 20cm apart and at a 90
DIN
Bidirectional
Pierre Curie
Sennheiser MD421
26. 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.
Machine Head
Clutch
Mid/Side
SPL Meter
27. 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.
Clip
Magnetic Microphone
Sennheiser MD441
Examples of Piezoelectric Material
28. Often look like handheld vocal mics; Talk or sing into the end of the microphone.
Jecklin Disk
End Address
A-Weighting
Over/Under
29. The outer covering of a microphone.
Coincident Pair
Casing
Off-Axis
Dynamic Range
30. 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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31. 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.
Tuning Keys
Faraday's Law of Magnetic Induction
Crystal & Ceramic Microphones
Distance Factor (DSF)
32. The head or top of the guitar where the tuning pegs are located.
Headstock
RFI
Shure SM58
Rear Sensitivity (Relative to Front)
33. Coincident pairing that is at 90
Neumann KM-84
Fukada Tree
Noise
Stereosonic
34. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125
Neumann U67
Supercardioid
Doubling Ribbon Length
AKG D12
35. Forward facing bipolar mics spaced 20cm apart.
Faulkner
AudioTechnica AT2020
Omnidirectional
Shure KSM-353
36. The first dynamic microphone with changeable polar patterns.
Doubling Ribbon Length
AKG D36
Stereo
Capacitor Microphone
37. 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.
Hypercardioid/Supercardioid (Electrical Polar Pattern)
AKG C1000S
Neumann U67
Ribbon Microphone
38. + (only); (Front capsule alone)
Measurement Mics
Cardioid (Electrical Polar Pattern)
Vintage Tube Mic Precautions
Doubling Ribbon Length
39. Device or transducer used for converting sound waves or acoustical energy into electrical energy
Microphone (Definition)
Magnetic Induction Formula
Dynamic Range
Vintage Tube Mic Precautions
40. Condenser; Cardioid; Side Address; 48V Required; Large Diaphragm; Manufactured by AudioTechnica; Transformerless circuitry virtually eliminates low- frequency distortion.
Decca Tree
Dual Mono
AudioTechnica AT4040
Carbon Microphone
41. Older ribbon microphone weighing 8.5 lbs. nearly all of it the large magnet!
Fukada Tree
End Address
Lowpass Filter
RCA 44BX
42. Founded AKG at the end of WWII in Austria.
Rudolf Goerike & Ernest Pless
Coincident (Definition)
Transducer Type
ORTF
43. Quartz; Barium Titaniate - Tourmaline; Rochelle Salt - and even cane sugar.
Examples of Piezoelectric Material
C-Weighting
Shiny Box 46MXL
Shockmount
44. Adds two outer right and left rear facing mics to a Decca tree for surround sound depth.
Fukada Tree
Sennheiser MD441
Frets
End Address
45. The first phantom powered condenser microphone designed for use by Georg Neumann for Norwegian State Television.
Shure Unidyne Series
Bandpass
Neumann KM-84
Dual Mono
46. Dynamic; Cardioid; End Address; Manufactured by Sennheiser; Unique mic clip with quick- release button; Large diaphragm dynamic element handles high SPL's - making it great for recording guitars and drums.
Max SPL
Leslie Cabinet
Trumpet Mic Placement
Sennheiser MD421
47. Pure polar pattern that receives sound from both the front and back; Also known as a 'Figure 8' pattern; More proximity effect that Cardioid or Hyper Cardioid; Often found in ribbon mics.
AKG DYN60
Magnetic Induction Formula
Subcardioid (Electrical Polar Pattern)
Bidirectional
48. 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.
Wind Screens
Shiny Box 46MXL
Roll-Off
Pistonphone
49. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
Shiny Box 46MXL
Backplate
Cone
Machine Head
50. Solid State and Tube.
Model 3B Carbon Microphone
Near Coincident Pair
Types of Pre-Amps for Condenser Mics
MSM