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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. 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
Matched Pairs
AudioTechnica AT4040
AKG C12
Faraday Cage
2. Commonly utilize large diaphragm dynamic mics.
Bass Amp Mic Placement
Soundfield
Alan Blumlein
Harvey Fletcher
3. Divisions on the fingerboard which represent the position of a specific note or tone.
Bidirectional
Transient Response
Frets
Spherical Mic
4. 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.
Legs
Magnetic Microphone
Condenser Diaphragm
Coincident Pair
5. Best signal- to- noise ratio; Minimal phase cancellation; Quality representation of what is being recorded; Attempt to ignore unwanted external noise.
Crystal and Ceramic Mic Use
Rudolf Goerike & Ernest Pless
Goals of Sound Effects
Coverage Angle
6. 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.
Cone
Tube Condenser Microphone
Shockmount
Coincident Pair
7. Reduces the power of a signal used when the trim itself cannot prevent overload in the mic line level signal.
AKG C1000S
Pad
Shure KSM-353
Vintage Tube Mic Precautions
8. 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
Nuvistor Tube
Clement Ader
Pickup
9. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
Legs
AKG C12
Cardioid
Ambient Sound Sensitivity
10. Utilized primarily on condenser and ribbon mics to isolate it from vibrations that might otherwise be transmitted to the microphone through the mic stand.
Phase Ports
ORTF
Shockmount
Georg Neumann
11. Omnidirectional: 360
Shure SM57
Coverage Angle
Piezoelectric Effect
Transient Response
12. Used for stereo miking to ensure correct balance and imaging.
Fundamental Frequency
Matched Pairs
A-Weighting
3:1 Rule
13. Shure's ribbon microphone that utilizes Roswellite to prevent ribbon damage.
Faraday's Law of Magnetic Induction
Shure KSM-353
Capacitance
Binaural Mic
14. Developed the condenser microphone in 1916 at Bell Labs.
Soundfield
Snare Drum Mic Placement
X/Y
E.C. Wente
15. Condenser; Cardioid; End Address; 48V Required; Manufactured by AudioTechnica; Switchable 80 Hz Hi-Pass Filter; Ideal for professional recording and critical applications in broadcast.
AudioTechnica AT4051
Coverage Angle
Null Angle
Near Coincident Pair
16. Keep in proper case; Never disassemble shockmounts
Bass Amp Mic Placement
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Microphone Storage
Wind Screens
17. 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.
SASS-P
Bidirectional
Subcardioid
Striking
18. 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.
Omnidirectional (Electrical Polar Pattern)
Neumann KM-84
NOS
Spaced Pairs
19. 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).
Binaural Mic
Piezoelectric Effect
SPL Meter
Microphone (Definition)
20. 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'.
Magnetic Induction Voltage
Near Coincident Pair
Clement Ader
Mid/Side
21. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Electret (Word Etymology)
Neumann U67
Roll-Off
Mid/Side
22. 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
Pad
Harvey Fletcher
Capacitor
23. Device or transducer used for converting sound waves or acoustical energy into electrical energy
Rode NT1A
Subkick
Microphone (Definition)
AudioTechnica AT4051
24. Use coincident or near coincident pairings; Too many microphones will cause phasing issues.
Ribbon Microphone Sensitivity
Percussion Mic Placement
SASS-P
Clutch
25. Used to filter heating current in certain mics; Invented by Georg Neumann.
Pressure Capsules
Baffle
Sealed Ni-Cad Battery
Microphone (Word Etymology)
26. Sounds that arrive from angles other than the 0
Piezoelectric Effect
Off-Axis
Increasing Output Voltage in Ribbon Mics
Types of Pre-Amps for Condenser Mics
27. The world's first single element cardioid mics.
Noise
Shure Unidyne Series
Clip
Body
28. 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.
Shure KSM Series
Damping
NOS
AKG C1000S
29. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Highpass Filter
Sennheiser e604
AudioTechnica AT2020
Sennheiser MD441
30. + (only); (Front capsule alone)
E.C. Wente
Cardioid (Electrical Polar Pattern)
Trombone Mic Placement
Decca Tree
31. 2 - 4 ft. from player; Placed below the line of sight of the bell - rotated at about 30 degrees off axis - and tilted upward.
Distance Factor (DSF)
SPL Meter
Trombone Mic Placement
Increasing Output Voltage in Ribbon Mics
32. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Dynamic Microphone
Supercardioid
E.C. Wente
Capacitor
33. 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
Cardioid (Electrical Polar Pattern)
Goals of Sound Effects
AKG C12
34. 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.
Cone
Shure SM58
Arrays
Roll-Off
35. + & - (Front & rear in opposite equal amounts)
Cardioid
Bidirectional (Electrical Polar Pattern)
Pistonphone
AB Stereo
36. Magnetic field opposite to that which presently exists; Do this on the bottom mic when miking a snare with two mics.
Reverse Polarity
Guitar Amp Mic Placement
Spherical Mic
Backplate
37. The combination of the ribbon and magnet in a ribbon microphone.
Motor
Sealed Ni-Cad Battery
Condenser Diaphragm
Shotgun
38. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125
Condenser Microphone
Legs
Supercardioid
Phasing
39. Modern drummer who has created a large kit and innovated several ways of capturing the sound from his massive kit.
Speed of Sound Underwater
Tube Condenser Microphone
Sennheiser MD441
Terry Bozzio
40. Shows the max sound pressure level possible with a certain amount of distortion; Measured in dB (decibels).
Magnetic Microphone
Max SPL
Neumann U47
Headstock
41. Tube manufactured for the new version of the AKG C12 (called the C12-A); Powered by Norelco.
Nuvistor Tube
NOS
Backplate
3 Voltages for Phantom Power
42. The first dynamic microphone with changeable polar patterns.
Capacitor Microphone
AKG D36
Ribbon Microphone
Arrays
43. Big + & - (More front with less opposite rear)
Hypercardioid/Supercardioid (Electrical Polar Pattern)
SASS-P
Reisz Marble Mic
Shure SM57
44. 4800 ft/sec
Interference Tube...
Speed of Sound Underwater
E.C. Wente
Sennheiser MD421
45. The head or top of the guitar where the tuning pegs are located.
Headstock
Coincident (Definition)
Carbon Microphone
Dynamic Range
46. To oppose with equal weight or force as in the length of the boom arm versus the weight of the microphone.
Shure SM57
AKG C414
Max SPL
Counterbalance
47. Omnidirectional: 0 - Cardioid: 8 - Supercardioid: 12 dB - Hypercardioid: 6 dB - Bidirectional: 0
Soundfield
Reverse Polarity
Stereosonic
Rear Sensitivity (Relative to Front)
48. 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.
Supercardioid
Sealed Ni-Cad Battery
Tuning Keys
FFT Analyzer
49. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
Matched Pairs
Transient Response
Pop Filter
Pickup
50. Coincident pairing angled between 90
Matched Pairs
Stereo Bar
X/Y
3:1 Rule