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Test your basic knowledge |
Microphones Theory
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. One of the world's greatest condenser microphones prized for the CK12 capsule.
AKG C12
Roswellite
Boom Placement Rule
Clutch
2. 4800 ft/sec
Speed of Sound Underwater
Polar Pattern
Nuvistor Tube
Subcardioid (Electrical Polar Pattern)
3. Flat plate that controls or directs the flow of sound energy in a crystal/ceramic mic.
Soundfield
Baffle
Distance Factor
Near Coincident Pair
4. 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.
Kick Tunnel
Pop Filter
Georg Neumann
Frets
5. When using two microphones reverse the polarity of the bottom mic.
Snare Drum Mic Placement
Shockmount
Electret Condenser
AKG C414
6. Electro- acoustic device attached to a transducer that vibrates to receive or produce sound waves which put the device into motion.
Dynamic Mic Characteristics
Off-Axis
Diaphragm
Reverse Polarity
7. Three or more microphones working together to capture a stereo or surround image of the sound source.
Arrays
Neumann KM-84
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Decca Tree
8. Divisions on the fingerboard which represent the position of a specific note or tone.
Pistonphone
Headstock
Bass Amp Mic Placement
Frets
9. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
E.C. Wente
Spaced Pairs
Types of Field Recording
Spherical Mic
10. Small microphone attached to the bridge of a string bass or to an acoustic guitar to amplify its sound.
Microphone Care...
AKG C414
Rode NT1A
Pickup
11. Demonstrated the first stereophonic transmissions via the Theatrophone in 1881.
Clement Ader
Diaphragm
Ribbon Microphone Sensitivity
Pressure Gradient Capsules
12. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125
E.C. Wente
Piezoelectric Effect
Supercardioid
M/S Stereo
13. First microphone invented by Georg Neumann
Electret Condenser
Reisz Marble Mic
Dynamic Microphone
Ribbon Microphone Sensitivity
14. To break down or disassemble any portion of a set or stage set- up.
Protractor & Ruler
Striking
Sensitivity
Transient Response
15. The measuring device used for loudspeaker room response testing.
Real Time Analyzer (RTA)
Fundamental Frequency
FFT Analyzer
AudioTechnica AT4040
16. 4 coincident mics each positioned at 90
Soundfield
Faulkner
LRFB
Microphone Storage
17. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
Roll-Off
NOS
Ambient Sound Sensitivity
Side Address
18. Often look like handheld vocal mics; Talk or sing into the end of the microphone.
5 Common Microphone Transducers
Coincident Pair
AKG C1000S
End Address
19. Tube microphone capable of SPL's over 140dB.
Fukada Tree
X/Y
Snare Drum Mic Placement
Neumann U67
20. Cable wrapping method that reduces interference and makes it easier to unravel the cable.
Over/Under
LRFB
Electret Condenser
Phase Ports
21. The reduction in the amplitude of a wave due to the dissipation of wave energy.
Interference Tube...
Neumann U87
Dual Mono
Damping
22. 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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23. The world's first single element cardioid mics.
Faulkner
Capacitance
Shure Unidyne Series
Terry Bozzio
24. A gradual - continuous decrease in low frequency response.
Roll-Off
Hydrophone
Shure KSM Series
Dynamic Range
25. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
Headstock
Sensitivity
Transient Response
Near Coincident Pair
26. Condenser; Cardioid; Side Address; 48V Required; Manufactured by AudioTechnica; Ideal for project/home- studio applications; Low price; Remains the low cost performance standard in side- address condenser mics.
Striking
AudioTechnica AT2020
Blumlein Pairing
Shure SM81
27. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Blumlein Pairing
Omnidirectional
Trombone Mic Placement
Neumann U47
28. 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.
FFT Analyzer
Microphone (Definition)
Coincident Pair
Increasing Output Voltage in Ribbon Mics
29. Modeled to mimic a human head for extremely good spatialization; Shaped like a human head.
Binaural Mic
Electret Condenser
Types of Field Recording
Side Address
30. Older ribbon microphone weighing 8.5 lbs. nearly all of it the large magnet!
Max SPL
RCA 44BX
Binaural Mic
Neumann U67
31. French broadcasting stereo mic technique; An X-Y type with the mics 17cm apart and at a 110
ORTF
Fundamental Frequency
MSM
Sennheiser e604
32. Delicate and require extreme care; NO PHANTOM POWER; Becoming more popular than ever because of highly efficient magnets - lower manufacturing costs - and great fidelity.
Vintage Tube Mic Precautions
Fundamental Frequency
Ribbon Mic Characteristics
3 Voltages for Phantom Power
33. A flat or roughly flat strip on the neck of a stringed instrument against which the strings are pressed to shorten the vibrating length and produce notes of higher pitches.
Fingerboard
Diaphragm
5 Common Microphone Transducers
Coincident Pair
34. Method of creating low end effects from a bass drum by creating a tunnel at the mic end thus trapping sound and amplifying low end boost.
Pressure Gradient Capsules
Shure KSM Series
Kick Tunnel
Pop Filter
35. E = Blv - e - Electromotive Force (in volts) - B - is the magnetic field strength - l - is the length of the conductor - v - is the velocity of the conductor moving through the magnetic field
Measurement Mics
Trumpet Mic Placement
RFI
Magnetic Induction Formula
36. Tough & rugged; Can work in extremely high SPL environments; Less responsive to transient frequencies b/c of diaphragm mass is heavier than sound waves.
Dynamic Mic Characteristics
Stereo Bar
AudioTechnica AT4040
Cardioid
37. Pair of omni mic separated by a circular absorptive baffle.
Jecklin Disk
Snare Drum Mic Placement
Spaced Pairs
Hypercardioid/Supercardioid (Electrical Polar Pattern)
38. When miking an amp placing it near the center of this will make it sound brighter; Miking near the outer edge of this will make it sound darker and more mellow in tone.
Bandpass
Bidirectional
Omnidirectional (Electrical Polar Pattern)
Cone
39. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.
Pressure Gradient Capsules
Mono
Hypercardioid
AKG D36
40. 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
Leslie Cabinet
Microphone Storage
Tuning Keys
Pickup
41. The arm of the mic stand; Includes the angle adjust & telescopic adjust.
5 Common Microphone Transducers
Boom
Crystal & Ceramic Microphones
Crystal Mic Damage
42. 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
Percussion Mic Placement
Omnidirectional (Electrical Polar Pattern)
Neumann U47
43. 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
Mid/Side
Stereosonic
Off-Axis
44. 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.
AB Stereo
Neumann U67
Ribbon Microphone
AKG D36
45. 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.
Legs
Shiny Box 46MXL
Microphone (Word Etymology)
AudioTechnica AT4040
46. Raises the body of the microphone increasing height.
3 Voltages for Phantom Power
Clutch
FFT Analyzer
Over/Under
47. Sub- frequency (below 100Hz) capture device designed for use with kick drums and floor toms as an alternative or supplement to a traditional microphone.
Omnidirectional (Electrical Polar Pattern)
Measurement Mics
AKG C1000S
Subkick
48. To oppose with equal weight or force as in the length of the boom arm versus the weight of the microphone.
Max SPL
Crystal Mic Damage
Reverse Polarity
Counterbalance
49. 12V DC; 24V DC; 48V DC
Rudolf Goerike & Ernest Pless
3 Voltages for Phantom Power
Nuvistor Tube
Over/Under
50. Big + & + (More front with less positive rear)
Pad
Bass Amp Mic Placement
Subcardioid (Electrical Polar Pattern)
Georg Neumann
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