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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. 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.
Trumpet Mic Placement
AudioTechnica AT2020
Casing
Reisz Marble Mic
2. Dynamic; Cardioid; End Address; Manufactured by Sennheiser; Very small and compact; Especially suitable for use with drums and brass instruments; Includes a clip to mount directly on drums.
Sennheiser e604
SPL Meter
ORTF
Pressure Gradient Capsules
3. 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
X/Y
AKG C1000S
Dynamic Microphone
4. Determined by: Ribbon Thickness (about 3 to 6 microns); Corrugations/Inch; Tension of the Ribbon.
Soundfield
Hydrophone
Georg Neumann
Ribbon Microphone Sensitivity
5. 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;
Reisz Marble Mic
Carbon Microphone
Harvey Fletcher
Stereo Bar
6. Part of a mic stand that the mic stands on.
Blumlein Pairing
Legs
Faraday Cage
AudioTechnica AT2020
7. 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.
Casing
Sennheiser MD441
M/S Stereo
MSM
8. The world's first single element cardioid mics.
Clement Ader
Neumann U47
Polar Pattern
Shure Unidyne Series
9. 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'.
Near Coincident Pair
Kick Tunnel
Null Angle
Jecklin Disk
10. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
Decca Tree
Magnetic Microphone
Transient Response
Neumann U47
11. 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.
AudioTechnica AT2020
AudioTechnica AT4040
Decca Tree
Trombone Mic Placement
12. 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.
Shure KSM Series
Coincident Pair
Real Time Analyzer (RTA)
Bidirectional (Electrical Polar Pattern)
13. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.
Bandpass
Pop Filter
Pressure Gradient Capsules
E.C. Wente
14. Shows the level of self- noise from a microphone's internal electronics; Measured in dB (decibels).
Decca Tree
Noise
3:1 Rule
Capacitor
15. Founded AKG at the end of WWII in Austria.
Shockmount
Vintage Tube Mic Precautions
Rudolf Goerike & Ernest Pless
Shure SM58
16. 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.
Boom
AKG DYN60
Packing
Harvey Fletcher
17. Shure's ribbon microphone that utilizes Roswellite to prevent ribbon damage.
Ribbon Mic Characteristics
Shure KSM-353
Coincident (Definition)
AudioTechnica AT4051
18. Device used to calibrate sound pressure measurement devices; Emits a single 1 kHz frequency over a sustained period of time.
Pressure Capsules
Shure KSM-353
Real Time Analyzer (RTA)
Pistonphone
19. 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.
Shockmount
Shure SM58
Phase Ports
Altec/Western Electric 639
20. Omnidirectional: 360
Coverage Angle
Examples of Piezoelectric Material
Faraday's Law of Magnetic Induction
Powering Condenser Microphones
21. Radio Frequency Interference
Voice Coil
Leslie Cabinet
RFI
Dynamic Range
22. 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
Clip
Trombone Mic Placement
Shotgun
23. 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.
Pressure Gradient Capsules
Pascals (Pa)
Over/Under
Georg Neumann
24. Overall measurement close to the overall sound level in frequency response charts.
Sennheiser MD441
C-Weighting
Percussion Mic Placement
AKG D12
25. The first cardioid pattern dynamic microphone.
Decca Tree
AB Stereo
Speed of Sound Underwater
AKG D12
26. The arm of the mic stand; Includes the angle adjust & telescopic adjust.
Counterbalance
Wind Screens
Boom
On -Axis
27. The outer covering of a microphone.
Shure Unidyne Series
Polar Pattern
Capacitance
Casing
28. Use coincident or near coincident pairings; Too many microphones will cause phasing issues.
Spherical Mic
Guitar Amp Mic Placement
Percussion Mic Placement
Striking
29. 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
Bidirectional (Electrical Polar Pattern)
Faraday's Law of Magnetic Induction
Piezoelectric Effect
Leslie Cabinet
30. + & + (Front & rear in equal positive amounts)
Omnidirectional (Electrical Polar Pattern)
5 Common Microphone Transducers
Real Time Analyzer (RTA)
Shure KSM-353
31. Tough & rugged; Can work in extremely high SPL environments; Less responsive to transient frequencies b/c of diaphragm mass is heavier than sound waves.
Pressure Gradient Capsules
Stereosonic
Dynamic Mic Characteristics
Distance Factor
32. Voltage applied to piezoelectric material will cause it to deform or change shape; NO PHANTOM POWER!
Noise
Decca Tree
Headstock
Crystal Mic Damage
33. 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.
Magnetic Microphone
Transducer Type
Subcardioid
Cone
34. Using omnidirectional as a reference of 1 - this is a measurement of how much farther you can be from a mic to achieve equal output level in other polar pattern microphones.
Omnidirectional (Electrical Polar Pattern)
Distance Factor
Goals of Sound Effects
Theatrophone
35. More compelling sound - giving both depth and perspective.
Pistonphone
Boom Placement Rule
Stereo
SASS-P
36. Omnidirectional: 0 - Cardioid: 8 - Supercardioid: 12 dB - Hypercardioid: 6 dB - Bidirectional: 0
Stereo Bar
Rear Sensitivity (Relative to Front)
Cardioid (Electrical Polar Pattern)
Over/Over
37. Most sensitive to sounds arriving from the front while rejecting sounds from rear; Shaped like a heart; Rejects most signals from 180
Cardioid
Omnidirectional (Electrical Polar Pattern)
Guitar Amp Mic Placement
Null Angle
38. Delicate and require extreme care; NO PHANTOM POWER; Becoming more popular than ever because of highly efficient magnets - lower manufacturing costs - and great fidelity.
Pressure Capsules
Sennheiser MD441
Ribbon Mic Characteristics
Percussion Mic Placement
39. 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
AudioTechnica AT4040
Increasing Output Voltage in Ribbon Mics
Speed of Sound Underwater
40. 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;
M/S Stereo
Coincident Pair
Distance Factor
Bidirectional (Electrical Polar Pattern)
41. The lowest - and usually most intense - frequency of a complex sound; Most often perceived as the sound's basic pitch.
Fundamental Frequency
Piezoelectric Effect
Faraday's Law of Magnetic Induction
Speed of Sound Underwater
42. One of the world's greatest condenser microphones prized for the CK12 capsule.
AKG C12
Arrays
Sennheiser MD441
Null Angle
43. The head or top of the guitar where the tuning pegs are located.
Pressure Gradient Capsules
Headstock
Backplate
AudioTechnica AT4040
44. An extremely strong acoustic nano- film designed to replace the foil ribbon in ribbon microphones.
Bidirectional (Electrical Polar Pattern)
Roswellite
Transient Response
Hypercardioid
45. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Ribbon Microphone Sensitivity
Crystal Mic Damage
Mono
Sennheiser MD441
46. + (only); (Front capsule alone)
Sensitivity
Cardioid (Electrical Polar Pattern)
Interference Tube...
Microphone (Word Etymology)
47. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Cone
Crystal & Ceramic Microphones
Dynamic Microphone
Rode NT1A
48. 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.
Blumlein Pairing
Supercardioid
Cone
Tube Condenser Microphone
49. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Coverage Angle
Blumlein Pairing
Reverse Polarity
Tube Condenser Microphone
50. Small microphone attached to the bridge of a string bass or to an acoustic guitar to amplify its sound.
Pickup
Percussion Mic Placement
Side Address
Trumpet Mic Placement
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