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Test your basic knowledge |
Microphones Theory
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. Never store mic in a damp place; Keep dirt & dust away from the mic; Never 'pop' test the mic; Check if a mic is working by lightly scratching the grill.
Noise
Microphone Care...
Shotgun
Striking
2. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Neumann KM 184
Capacitance
5 Common Microphone Transducers
Voice Coil
3. Divisions on the fingerboard which represent the position of a specific note or tone.
Frets
Field Mixer
Microphone (Word Etymology)
SPL Meter
4. A 3- mic array using omni mics with left - right and center placement; Center is placed about 5 ft. closer to the source to eliminate 'holes' in the middle and the center levels are reduced for an even sound; Forms a triangle.
Decca Tree
Neumann U87
Counterbalance
Diaphragm
5. Barrier made of shaped wire covered with a piece of nylon that is placed between a sensitive mic and the talent to avoid damage to the diaphragm of the mic.
Pop Filter
Terry Bozzio
Ribbon Microphone
Ambient Sound Sensitivity
6. Sounds that arrive at the 0
Shotgun
Mono
Pressure Capsules
On -Axis
7. Reduces the power of a signal used when the trim itself cannot prevent overload in the mic line level signal.
Harvey Fletcher
Pad
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Shure KSM-353
8. 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.
Field Mixer
Subcardioid (Electrical Polar Pattern)
AudioTechnica AT4051
Damping
9. 4800 ft/sec
Reisz Marble Mic
Speed of Sound Underwater
AKG DYN60
Matched Pairs
10. 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.
Microphone Storage
Subcardioid (Electrical Polar Pattern)
Diaphragm
AKG C414
11. Responds to air pressure variations outside of the capsule; Not selective of direction; Natural polar pattern is omnidirectional.
Pressure Capsules
Capacitor
Pascals (Pa)
C-Weighting
12. 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.
Baffle
Shure SM58
Boom
Side Address
13. Mics placed in front of an instrument or ensemble (in a left/right fashion) to obtain an overall stereo image; Sound more open and natural; Weaker center image than X/Y; Great for creating background sounds that will blend in with foreground sounds.
Polar Pattern
Spaced Pairs
SASS-P
Hypercardioid
14. Often look like large diaphragm studio mics; Talk or sing into the side of the microphone.
Tuning Keys
AudioTechnica AT4040
Side Address
Microphone (Definition)
15. Radio Frequency Interference
AKG DYN60
RFI
Stereo Bar
Percussion Mic Placement
16. Mid-Section of the mic stand; Includes the clutch.
Body
Off-Axis
Striking
Omnidirectional
17. Occupying the same space and time.
Magnetic Microphone
Coincident (Definition)
Coverage Angle
AudioTechnica AT4051
18. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Examples of Piezoelectric Material
SPL Meter
Telefunken ELA- M251
Terry Bozzio
19. Allow sound to reach the rear of the capsule/diaphragm - to create cardioid - supercardioid - and hypercardioid patterns In single capsule pressure gradient microphones.
Phase Ports
Neumann CMV3
Field Mixer
SASS-P
20. Microphone with 4 large diaphragm condenser capsules; 3 bidirectional and 1 omni; Can be combined to make any polar pattern.
Fukada Tree
Soundfield
Counterbalance
Frets
21. Shows the total range of the mic's internal pre- amp; Measured in dB (decibels).
Coincident (Definition)
Near Coincident Pair
Dynamic Range
Cardioid
22. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
Transient Response
E.C. Wente
AKG D36
Kick Tunnel
23. An electrical device characterized by its capacity to store an electric charge;
Capacitor
AKG DYN60
Snare Drum Mic Placement
Alan Blumlein
24. Founded AKG at the end of WWII in Austria.
Blumlein Pairing
Clement Ader
Shiny Box 46MXL
Rudolf Goerike & Ernest Pless
25. More compelling sound - giving both depth and perspective.
Stereo
Theatrophone
Snare Drum Mic Placement
Legs
26. Condenser; Cardioid; Side Address; 48V Required; Large Diaphragm; Manufactured by AudioTechnica; Transformerless circuitry virtually eliminates low- frequency distortion.
Condenser Microphone
Speed of Sound Underwater
AudioTechnica AT4040
Hypercardioid
27. Bell Labs scientist that was an innovator of many spaced pair and arrayed miking techniques.
Harvey Fletcher
Rudolf Goerike & Ernest Pless
Electret Condenser
AudioTechnica AT2020
28. 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.
Bidirectional
Jecklin Disk
Lowpass Filter
Fingerboard
29. 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.
Shotgun
Stereosonic
Body
Stereo
30. 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
Sennheiser MD421
Doubling Ribbon Length
3:1 Rule
31. 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.
Dynamic Range
Arrays
Wind Screens
Electro Voice RE20
32. Omnidirectional: 360
Pascals (Pa)
Shure SM57
Motor
Coverage Angle
33. Tube manufactured for the new version of the AKG C12 (called the C12-A); Powered by Norelco.
Condenser Microphone
Nuvistor Tube
Subcardioid
Sennheiser e604
34. Magnetic field opposite to that which presently exists; Do this on the bottom mic when miking a snare with two mics.
Altec/Western Electric 639
Fingerboard
ORTF
Reverse Polarity
35. Flat plate that controls or directs the flow of sound energy in a crystal/ceramic mic.
Neumann U47
Fukada Tree
Polar Pattern
Baffle
36. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
ORTF
Bidirectional (Electrical Polar Pattern)
Proximity Effect
Machine Head
37. Omnidirectional: 0 - Cardioid: 8 - Supercardioid: 12 dB - Hypercardioid: 6 dB - Bidirectional: 0
Soundfield
Rear Sensitivity (Relative to Front)
Stereo Bar
Capacitor
38. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
MSM
Carbon Microphone
SASS-P
RCA 44BX
39. Captures sounds arriving 90
Parabolic Systems
AKG C12
Dual Mono
Tuning Keys
40. Measurement similar to how our hearing works in frequency response charts.
Electro Voice RE20
Georg Neumann
Percussion Mic Placement
A-Weighting
41. Overall measurement close to the overall sound level in frequency response charts.
Blumlein Pairing
Electret (Word Etymology)
C-Weighting
Shockmount
42. Used to filter heating current in certain mics; Invented by Georg Neumann.
Sealed Ni-Cad Battery
Cardioid
Pascals (Pa)
Crystal and Ceramic Mic Use
43. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Rudolf Goerike & Ernest Pless
AKG C12
Ribbon Microphone Sensitivity
Electret (Word Etymology)
44. Used for stereo miking to ensure correct balance and imaging.
Rode NT1A
Matched Pairs
Pad
Cardioid (Electrical Polar Pattern)
45. Consumers can listen to live broadcasts over telephone lines; Individual one- way experience that required a subscription service to listen to performances.
AKG C414
Over/Under
Theatrophone
Noise
46. Characterized by a vacuum tube transducer; Heat rises so many are hung upside down to prevent heat from reaching the microphone head; Avoid jostling or shaking these fragile mics.
LRFB
Tube Condenser Microphone
Mid/Side
Carbon Microphone
47. Best signal- to- noise ratio; Minimal phase cancellation; Quality representation of what is being recorded; Attempt to ignore unwanted external noise.
Condenser Diaphragm
AKG C1000S
Neumann KM-84
Goals of Sound Effects
48. 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
FFT Analyzer
Dynamic Mic Characteristics
Spherical Mic
49. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
Electro Voice RE20
Ambient Sound Sensitivity
Stereo
E.C. Wente
50. When using two microphones reverse the polarity of the bottom mic.
Roswellite
Counterbalance
Dual Mono
Snare Drum Mic Placement
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