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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. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.
Guitar Amp Mic Placement
Hydrophone
Cardioid
AKG D36
2. Very robust and durable; Used in telephones until 1990's; Currently finds applications for military use.
Carbon Microphone Uses
Cone
Fingerboard
Microphone (Definition)
3. 12V DC; 24V DC; 48V DC
3 Voltages for Phantom Power
Pressure Gradient Capsules
Cone
Wind Screens
4. 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.
Motor
Crystal Mic Damage
Sennheiser e604
NOS
5. Basket/grille made out of a specific type of copper wire to block protect the mic from physical damage and to protect the mic from stray RFI
Faraday Cage
Spherical Mic
Measurement Mics
Shotgun
6. The reduction in the amplitude of a wave due to the dissipation of wave energy.
Types of Pre-Amps for Condenser Mics
Headstock
Pressure Gradient Capsules
Damping
7. 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.
Dynamic Mic Characteristics
Microphone (Definition)
Proximity Effect
Packing
8. Considered to be the best mic ever made; VF14 Tube.
Roswellite
Neumann U47
Max SPL
Cardioid (Electrical Polar Pattern)
9. Shure's newer ribbon studio mics; KSM 353 & 313 (Roswellite); KSM 44 - 32 - & 27.
Shure KSM Series
Powering Condenser Microphones
Pop Filter
Pad
10. 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;
Carbon Microphone
Spaced Pairs
Roswellite
Crystal Mic Damage
11. Radio Frequency Interference
RFI
Bass Amp Mic Placement
Increasing Output Voltage in Ribbon Mics
Telefunken ELA- M251
12. 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.
Telefunken ELA- M251
Reisz Marble Mic
Field Mixer
AudioTechnica AT4040
13. 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.
Shure SM58
FFT Analyzer
M/S Stereo
Damping
14. Omnidirectional: N/ - Cardioid: 180
Examples of Piezoelectric Material
Hypercardioid
E.C. Wente
Angle of Max Rejection
15. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Magnetic Induction Voltage
MSM
Pop Filter
Dynamic Microphone
16. Tube microphone capable of SPL's over 140dB.
Pierre Curie
Leslie Cabinet
Neumann U67
Hypercardioid
17. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.
Highpass Filter
Alan Blumlein
Over/Over
Rode NT1A
18. The outer covering of a microphone.
Shure KSM Series
Casing
Reisz Marble Mic
Carbon Microphone
19. Raises the body of the microphone increasing height.
Harvey Fletcher
Distance Factor (DSF)
Neumann U67
Clutch
20. 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.
Microphone (Word Etymology)
Magnetic Microphone
Pierre Curie
Pressure Gradient Capsules
21. One of the world's greatest condenser microphones prized for the CK12 capsule.
Dynamic Mic Characteristics
Omnidirectional (Electrical Polar Pattern)
Machine Head
AKG C12
22. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Field Mixer
Georg Neumann
Model 3B Carbon Microphone
Tube Condenser Microphone
23. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Sennheiser MD441
Roll-Off
Transducer Type
Ribbon Mic Characteristics
24. 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.
OSHA Exposure Table
3:1 Rule
Coincident Pair
Carbon Microphone
25. 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.
Transient Response
AudioTechnica AT2020
Dynamic Range
Casing
26. Forward facing bipolar mics spaced 20cm apart.
M/S Stereo
Shure KSM-353
Faulkner
Boom
27. 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.
Max SPL
Angle of Max Rejection
Ribbon Microphone Sensitivity
Microphone Care...
28. Cable wrapping method that reduces interference and makes it easier to unravel the cable.
Baffle
Over/Under
Magnetic Microphone
Decca Tree
29. Commonly found in acoustic guitar pickups; Ceramic piezoelectric material is used in hydrophones (underwater mics) because of durability.
Crystal and Ceramic Mic Use
AKG C12
Subkick
Body
30. 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.
Vintage Tube Mic Precautions
SPL Meter
Near Coincident Pair
Rear Sensitivity (Relative to Front)
31. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Voice Coil
Cardioid (Electrical Polar Pattern)
Rear Sensitivity (Relative to Front)
Fundamental Frequency
32. Mounts on a single stand to provide for adjustable spacing and angling between mics.
Stereo Bar
Machine Head
Arrays
3 Voltages for Phantom Power
33. Pair of omni mic elements mounted on opposite sides of a spherical shaped capsule.
Spherical Mic
Stereosonic
Sensitivity
Trumpet Mic Placement
34. Timing difference between two waves; Waves interfere cancelling each other out and altering frequency response; Measured in degrees; Can be caused by reflections of sound waves; Can be reduced by putting cabinet or amp at an angle.
Hypercardioid
FFT Analyzer
Phasing
Clutch
35. Tube with ports down the side with the mic capsule at the bottom; Sounds entering the tube from on - axis interact inside the tube with the sounds coming in through the side ports - an interfere with each other in such a way as to partially cancel of
Interference Tube...
Measurement Mics
Sennheiser e604
A-Weighting
36. 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.
Neumann U67
Telefunken ELA- M251
Side Address
Sennheiser MD421
37. Small microphone attached to the bridge of a string bass or to an acoustic guitar to amplify its sound.
Goals of Sound Effects
Pickup
Packing
Soundfield
38. Captures sounds arriving 90
Pressure Capsules
Terry Bozzio
Vintage Tube Mic Precautions
Parabolic Systems
39. Stereo coincident pairing where the middle mic (usually a cardiod) is facing source and a bidirectional side mic is placed at 90
Pressure Gradient Capsules
MSM
Transient Response
Mid/Side
40. When using multiple microphones - the distance between microphones should be at least 3 times the distance from each microphone to its intended sound source.
Shiny Box 46MXL
Stereo
3:1 Rule
Transducer Type
41. Solid state version of the U67.
Clement Ader
Baffle
Transducer Type
Neumann U87
42. 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.
Alan Blumlein
AKG C1000S
SPL Meter
Proximity Effect
43. 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)
Microphone (Word Etymology)
Subkick
Side Address
44. Another name for condenser microphone.
AKG C12
Capacitor Microphone
Headstock
Capacitance
45. Overall measurement close to the overall sound level in frequency response charts.
Omnidirectional (Electrical Polar Pattern)
Clip
Vintage Tube Mic Precautions
C-Weighting
46. Used for stereo miking to ensure correct balance and imaging.
Magnetic Microphone
Matched Pairs
Bidirectional
Rear Sensitivity (Relative to Front)
47. Device or transducer used for converting sound waves or acoustical energy into electrical energy
Leslie Cabinet
Transducer Type
DIN
Microphone (Definition)
48. Angle of maximum signal rejection in a microphone polar pattern.
Pickup
Null Angle
Sensitivity
Neumann U47
49. 4800 ft/sec
Off-Axis
Decca Tree
Speed of Sound Underwater
Faraday Cage
50. Adds two outer right and left rear facing mics to a Decca tree for surround sound depth.
Fukada Tree
Coverage Angle
Noise
Crystal & Ceramic Microphones