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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. Verify that the boom is placed over a microphone leg prior to use to provide added balance and stability.
NOS
Boom Placement Rule
Counterbalance
Headstock
2. Commonly found in acoustic guitar pickups; Ceramic piezoelectric material is used in hydrophones (underwater mics) because of durability.
Bidirectional
Crystal and Ceramic Mic Use
AKG D36
Electro Voice RE20
3. + & - (Front & rear in opposite equal amounts)
Bidirectional (Electrical Polar Pattern)
Terry Bozzio
Rudolf Goerike & Ernest Pless
Phasing
4. 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.
Ribbon Microphone Sensitivity
Clip
Spaced Pairs
Trombone Mic Placement
5. 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.
Pad
A-Weighting
Shotgun
Ribbon Microphone
6. 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.
Subkick
Pad
Shotgun
Coincident Pair
7. An extremely strong acoustic nano- film designed to replace the foil ribbon in ribbon microphones.
Dynamic Range
Roswellite
Soundfield
Sennheiser e604
8. Divisions on the fingerboard which represent the position of a specific note or tone.
Neumann U67
Interference Tube...
Stereo
Frets
9. Often look like large diaphragm studio mics; Talk or sing into the side of the microphone.
Ribbon Microphone Sensitivity
AKG C1000S
Side Address
Speed of Sound Underwater
10. Occupying the same space and time.
Coincident (Definition)
X/Y
Electro Voice RE20
E.C. Wente
11. Another name for condenser microphone.
Telefunken ELA- M251
Measurement Mics
Capacitor Microphone
Electret Condenser
12. Fixed plate that is charged with polarized voltage found in condenser mics; Usually constructed of milled brass; Has a number of holes drilled in it to provide damping for diaphragm.
C-Weighting
Examples of Piezoelectric Material
Backplate
LRFB
13. Big + & + (More front with less positive rear)
RCA 44BX
Polar Pattern
AudioTechnica AT4051
Subcardioid (Electrical Polar Pattern)
14. Considered to be the best mic ever made; VF14 Tube.
Sealed Ni-Cad Battery
Tube Condenser Microphone
Stereo
Neumann U47
15. Forward facing bipolar mics spaced 20cm apart.
Faulkner
Mono
End Address
Null Angle
16. Microphone consisting of two parallel metal plates - each holding an opposing charge (+ or -) and thus creating a capacitor to induce an electrical charge as sound waves move the diaphragm; Require a solid- state or tube preamplifier.
Condenser Microphone
Neumann U87
Proximity Effect
AudioTechnica AT4051
17. To break down or disassemble any portion of a set or stage set- up.
Shure KSM-353
Magnetic Microphone
Striking
Dual Mono
18. 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
X/Y
Protractor & Ruler
Headstock
19. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.
Tube Condenser Microphone
Pressure Gradient Capsules
Boom
Shure KSM Series
20. Utilized primarily on condenser and ribbon mics to isolate it from vibrations that might otherwise be transmitted to the microphone through the mic stand.
Shockmount
Fingerboard
Guitar Amp Mic Placement
Sennheiser MD421
21. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
Machine Head
Terry Bozzio
5 Common Microphone Transducers
Neumann U67
22. 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.
RFI
Pop Filter
Shure SM58
Parabolic Systems
23. 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
Clutch
Electret Condenser
Faraday Cage
24. Pair of omni mic elements mounted on opposite sides of a spherical shaped capsule.
Reverse Polarity
Parabolic Systems
Spherical Mic
Microphone (Word Etymology)
25. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.
Percussion Mic Placement
Over/Over
C-Weighting
SASS-P
26. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Polar Pattern
Matched Pairs
Harvey Fletcher
DIN
27. Modeled to mimic a human head for extremely good spatialization; Shaped like a human head.
Microphone (Word Etymology)
Binaural Mic
Omnidirectional
Noise
28. Demonstrated the first stereophonic transmissions via the Theatrophone in 1881.
Clement Ader
Bidirectional (Electrical Polar Pattern)
Rode NT1A
Model 3B Carbon Microphone
29. Responds to air pressure variations outside of the capsule; Not selective of direction; Natural polar pattern is omnidirectional.
Snare Drum Mic Placement
Crystal & Ceramic Microphones
Pressure Capsules
Field Mixer
30. 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.
Georg Neumann
Fingerboard
Neumann U87
Motor
31. 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.
5 Common Microphone Transducers
Pascals (Pa)
Condenser Diaphragm
Lowpass Filter
32. French broadcasting stereo mic technique; An X-Y type with the mics 17cm apart and at a 110
Tube Condenser Microphone
ORTF
Coverage Angle
Coincident Pair
33. 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.
Capacitor Microphone
Shiny Box 46MXL
Speed of Sound Underwater
Electro Voice RE20
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.
Hydrophone
Over/Over
Phasing
Noise
35. Three or more microphones working together to capture a stereo or surround image of the sound source.
Parabolic Systems
Arrays
Altec/Western Electric 639
Cardioid (Electrical Polar Pattern)
36. Cable wrapping method that reduces interference and makes it easier to unravel the cable.
Pop Filter
Shure KSM-353
Subcardioid (Electrical Polar Pattern)
Over/Under
37. Pure polar pattern with which the microphone is equally sensitive in all directions; Great for capturing ambiance or room reverb.
Terry Bozzio
Coincident (Definition)
Omnidirectional
Clip
38. The measuring device used for loudspeaker room response testing.
NOS
AB Stereo
Coverage Angle
Real Time Analyzer (RTA)
39. Consumers can listen to live broadcasts over telephone lines; Individual one- way experience that required a subscription service to listen to performances.
Coverage Angle
Theatrophone
Voice Coil
Off-Axis
40. Developed the condenser microphone in 1916 at Bell Labs.
A-Weighting
E.C. Wente
Pop Filter
Proximity Effect
41. Digital device used to Fourier Forms; Used to measure the specific number of sine waves in a specific frequency in a specific setting.
FFT Analyzer
Hypercardioid
Model 3B Carbon Microphone
Types of Pre-Amps for Condenser Mics
42. One of the world's greatest condenser microphones prized for the CK12 capsule.
Polar Pattern
AKG C12
Backplate
RFI
43. 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
Shockmount
Bidirectional
Arrays
44. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.
Crystal & Ceramic Microphones
SASS-P
Casing
Faraday's Law of Magnetic Induction
45. Small Diaphragm Electret condensers; Extremely flat frequency response; Omnidirectional pattern.
Arrays
Goals of Sound Effects
Measurement Mics
Bandpass
46. Keep in proper case; Never disassemble shockmounts
Noise
Capacitor
Microphone Storage
Wind Screens
47. Modern drummer who has created a large kit and innovated several ways of capturing the sound from his massive kit.
Off-Axis
Condenser Diaphragm
Null Angle
Terry Bozzio
48. Omnidirectional: N/ - Cardioid: 180
Angle of Max Rejection
AKG C12
M/S Stereo
Crystal Mic Damage
49. Solid state version of the U67.
Increasing Output Voltage in Ribbon Mics
AKG C1000S
Neumann U87
Bidirectional (Electrical Polar Pattern)
50. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Faulkner
Electret (Word Etymology)
Bidirectional
Carbon Microphone Uses