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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. 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.
Types of Pre-Amps for Condenser Mics
Vintage Tube Mic Precautions
Dynamic Range
Polar Pattern
2. 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'.
Packing
Near Coincident Pair
Pascals (Pa)
Electro Voice RE20
3. Known as 'The Bottle' this was the first mass - produced condenser mic.
Sennheiser MD421
Neumann CMV3
Shure SM58
Shure SM81
4. The lowest - and usually most intense - frequency of a complex sound; Most often perceived as the sound's basic pitch.
Electro Voice RE20
Fundamental Frequency
Capacitor Microphone
Max SPL
5. Big + & - (More front with less opposite rear)
Lowpass Filter
Coverage Angle
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Stereosonic
6. The reduction in the amplitude of a wave due to the dissipation of wave energy.
Microphone (Word Etymology)
Piezoelectric Effect
Damping
Faraday Cage
7. Sub- frequency (below 100Hz) capture device designed for use with kick drums and floor toms as an alternative or supplement to a traditional microphone.
Subkick
Nuvistor Tube
Doubling Ribbon Length
Casing
8. 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.
Condenser Diaphragm
Pickup
Spaced Pairs
SPL Meter
9. Measurement similar to how our hearing works in frequency response charts.
Neumann U67
OSHA Exposure Table
A-Weighting
Sennheiser e604
10. The first cardioid pattern dynamic microphone.
Bandpass
Sealed Ni-Cad Battery
Theatrophone
AKG D12
11. 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.
Types of Field Recording
Goals of Sound Effects
Trumpet Mic Placement
OSHA Exposure Table
12. Stereo coincident pairing where the middle mic (usually a cardiod) is facing source and a bidirectional side mic is placed at 90
Mid/Side
Neumann KM-84
Neumann KM 184
Carbon Microphone
13. 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.
Rudolf Goerike & Ernest Pless
Harvey Fletcher
Magnetic Microphone
X/Y
14. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125
Magnetic Microphone
Supercardioid
Clutch
Condenser Microphone
15. 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.
Frets
Sennheiser MD421
Casing
Dynamic Mic Characteristics
16. 4800 ft/sec
Powering Condenser Microphones
Shure SM58
Piezoelectric Effect
Speed of Sound Underwater
17. Will yield a 6dB increase in output - but will cause a loss of high frequency response.
Doubling Ribbon Length
Distance Factor
Field Mixer
Terry Bozzio
18. Most sensitive to sounds arriving from the front while rejecting sounds from rear; Shaped like a heart; Rejects most signals from 180
Cardioid
Types of Pre-Amps for Condenser Mics
Coverage Angle
Speed of Sound Underwater
19. Sensitive in a narrower pattern in the front than a cardioid and has a prominent/pronounced lobe at rear; Rejects most signals from 110
Wind Screens
Clement Ader
Hypercardioid
AudioTechnica AT4051
20. Omnidirectional: N/ - Cardioid: 180
Frets
On -Axis
Spaced Pairs
Angle of Max Rejection
21. Verify that the boom is placed over a microphone leg prior to use to provide added balance and stability.
Terry Bozzio
Noise
Boom Placement Rule
Powering Condenser Microphones
22. 12V DC; 24V DC; 48V DC
Pop Filter
Magnetic Microphone
Lowpass Filter
3 Voltages for Phantom Power
23. 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.
Lowpass Filter
SASS-P
Tuning Keys
M/S Stereo
24. The first phantom powered condenser microphone designed for use by Georg Neumann for Norwegian State Television.
Body
Neumann KM-84
Over/Under
Pickup
25. Voltage applied to piezoelectric material will cause it to deform or change shape; NO PHANTOM POWER!
Crystal Mic Damage
Sennheiser MD421
Ribbon Mic Characteristics
Sealed Ni-Cad Battery
26. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Decca Tree
Reisz Marble Mic
Shiny Box 46MXL
Model 3B Carbon Microphone
27. 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
Pascals (Pa)
Frets
Counterbalance
Altec/Western Electric 639
28. Used for stereo miking to ensure correct balance and imaging.
Bass Amp Mic Placement
Mono
Neumann U87
Matched Pairs
29. 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.
Jecklin Disk
Subcardioid
Coincident Pair
Condenser Microphone
30. Shows the level of self- noise from a microphone's internal electronics; Measured in dB (decibels).
Hydrophone
Protractor & Ruler
Noise
Subcardioid
31. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Packing
Counterbalance
Polar Pattern
Percussion Mic Placement
32. Early example of switchable polar patterns; Had both a dynamic and a ribbon capsule inside of it which when combined produced other polar patterns.
Sealed Ni-Cad Battery
Altec/Western Electric 639
Roll-Off
Rode NT1A
33. Shows the max sound pressure level possible with a certain amount of distortion; Measured in dB (decibels).
LRFB
Max SPL
Vintage Tube Mic Precautions
Condenser Microphone
34. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Off-Axis
Ambient Sound Sensitivity
Telefunken ELA- M251
AudioTechnica AT4040
35. A gradual - continuous decrease in low frequency response.
Capacitance
Crystal & Ceramic Microphones
Roll-Off
Tuning Keys
36. Adds two outer right and left rear facing mics to a Decca tree for surround sound depth.
AKG C414
Goals of Sound Effects
Reverse Polarity
Fukada Tree
37. Carbon; Ceramic/Crystal; Magnetic/Dynamic; Ribbon; Condenser
5 Common Microphone Transducers
Vintage Tube Mic Precautions
Faraday's Law of Magnetic Induction
Shotgun
38. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Rear Sensitivity (Relative to Front)
Dynamic Microphone
AB Stereo
Shure SM58
39. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.
Goals of Sound Effects
Hydrophone
Sealed Ni-Cad Battery
C-Weighting
40. 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).
Shockmount
Magnetic Induction Voltage
Piezoelectric Effect
Condenser Diaphragm
41. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.
Shure SM57
Crystal & Ceramic Microphones
SPL Meter
Clement Ader
42. 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.
Damping
Electro Voice RE20
Fundamental Frequency
Faulkner
43. 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.
Kick Tunnel
Packing
Subkick
AKG C414
44. Allows all high frequencies to pass; Blocks the lower frequencies from being processed.
RFI
Pressure Capsules
Highpass Filter
Goals of Sound Effects
45. Pair of omni mic separated by a circular absorptive baffle.
Jecklin Disk
Bass Amp Mic Placement
Georg Neumann
Neumann U87
46. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
Baffle
Sensitivity
Carbon Microphone Uses
Shotgun
47. 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;
Faraday's Law of Magnetic Induction
Alan Blumlein
M/S Stereo
Capacitor Microphone
48. Extremely narrow area of sensitivity in front with extended reach; Also has multiple lobes which vary in position with frequency; Not made from combining pure patterns - but created by using an interference tube.
AKG D36
Electret Condenser
Shotgun
Capacitor
49. Another name for condenser microphone.
Powering Condenser Microphones
Capacitor Microphone
C-Weighting
Counterbalance
50. 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
Field Mixer
Protractor & Ruler
On -Axis