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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. Small microphone attached to the bridge of a string bass or to an acoustic guitar to amplify its sound.
End Address
Tube Condenser Microphone
Phasing
Pickup
2. 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
3 Voltages for Phantom Power
Protractor & Ruler
Shure SM57
3. Microphone with 4 large diaphragm condenser capsules; 3 bidirectional and 1 omni; Can be combined to make any polar pattern.
Georg Neumann
Capacitance
Pistonphone
Soundfield
4. Will yield a 6dB increase in output - but will cause a loss of high frequency response.
Doubling Ribbon Length
Leslie Cabinet
Roswellite
Bass Amp Mic Placement
5. Tube manufactured for the new version of the AKG C12 (called the C12-A); Powered by Norelco.
Damping
Nuvistor Tube
Reverse Polarity
Phase Ports
6. When using two microphones reverse the polarity of the bottom mic.
Near Coincident Pair
Snare Drum Mic Placement
Striking
Magnetic Induction Voltage
7. 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;
AudioTechnica AT2020
Arrays
M/S Stereo
Condenser Microphone
8. To capture two perspectives on the same sound.
Dual Mono
Pascals (Pa)
Hydrophone
Tube Condenser Microphone
9. 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.
Counterbalance
AKG D12
Spaced Pairs
Casing
10. Used to filter heating current in certain mics; Invented by Georg Neumann.
Types of Field Recording
Sealed Ni-Cad Battery
Condenser Diaphragm
Phasing
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.
Electret Condenser
AudioTechnica AT2020
Arrays
Packing
12. 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.
Guitar Amp Mic Placement
Fukada Tree
Shotgun
Shure SM81
13. Often look like large diaphragm studio mics; Talk or sing into the side of the microphone.
Soundfield
Neumann KM-84
Side Address
Nuvistor Tube
14. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
Ambient Sound Sensitivity
Headstock
Mid/Side
Matched Pairs
15. Works exactly like condenser mic but one of the two plates is manufactured as a capsule with a permanent static charge so there is no external power source necessary; Requires phantom or battery to charge internal mic preamp.
Electret Condenser
Pad
Reisz Marble Mic
Rudolf Goerike & Ernest Pless
16. The attachment that holds a microphone in place on the mic stand; Comes in various shapes - sizes - and applications.
Motor
Dual Mono
Clip
Capacitor Microphone
17. 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.
Backplate
MSM
Theatrophone
Cardioid (Electrical Polar Pattern)
18. Utilized primarily on condenser and ribbon mics to isolate it from vibrations that might otherwise be transmitted to the microphone through the mic stand.
Leslie Cabinet
Shockmount
Faraday's Law of Magnetic Induction
Speed of Sound Underwater
19. 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.
AudioTechnica AT4040
Transient Response
Rode NT1A
Roswellite
20. German broadcasting stereo mic technique; An X-Y type with the mics 20cm apart and at a 90
Alan Blumlein
DIN
Pickup
Protractor & Ruler
21. Allow sound to reach the rear of the capsule/diaphragm - to create cardioid - supercardioid - and hypercardioid patterns In single capsule pressure gradient microphones.
Microphone (Word Etymology)
Phase Ports
Bass Amp Mic Placement
Mid/Side
22. Pair of omni mic separated by a circular absorptive baffle.
Jecklin Disk
Bandpass
Backplate
Crystal and Ceramic Mic Use
23. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.
Electro Voice RE20
Crystal & Ceramic Microphones
Fundamental Frequency
Georg Neumann
24. Captures sounds arriving 90
Parabolic Systems
Roll-Off
Snare Drum Mic Placement
ORTF
25. 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.
Tuning Keys
Ribbon Mic Characteristics
Fingerboard
Stereo
26. Consumers can listen to live broadcasts over telephone lines; Individual one- way experience that required a subscription service to listen to performances.
Theatrophone
Shure SM81
Electret (Word Etymology)
Subcardioid
27. Overall measurement close to the overall sound level in frequency response charts.
C-Weighting
Sennheiser e604
Kick Tunnel
Microphone (Definition)
28. 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.
Jecklin Disk
Capacitor Microphone
Magnetic Induction Voltage
Backplate
29. Condenser; Cardioid; Side Address; 48V Required; Large Diaphragm; Manufactured by AudioTechnica; Transformerless circuitry virtually eliminates low- frequency distortion.
AKG C1000S
AudioTechnica AT4040
Binaural Mic
Over/Under
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.
Fingerboard
Boom Placement Rule
Subcardioid
Alan Blumlein
31. One of the world's greatest condenser microphones prized for the CK12 capsule.
Hypercardioid
Model 3B Carbon Microphone
AKG C12
Electro Voice RE20
32. Verify that the boom is placed over a microphone leg prior to use to provide added balance and stability.
Microphone (Definition)
Voice Coil
Near Coincident Pair
Boom Placement Rule
33. Used by government agencies to determine safe sound exposure levels (in dB) over a period of time; 85 - 90 dB = 16 hrs. of safe exposure time at 85 dB; Decreases to 8 hrs. of safe exposure time at 90 dB.
Measurement Mics
Side Address
OSHA Exposure Table
Shure KSM-353
34. The world's first single element cardioid mics.
Ribbon Microphone Sensitivity
Shure Unidyne Series
Coverage Angle
Wind Screens
35. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.
Over/Over
AKG C1000S
Magnetic Microphone
AKG C12
36. Reduces the power of a signal used when the trim itself cannot prevent overload in the mic line level signal.
Pad
Pistonphone
Machine Head
Crystal Mic Damage
37. 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
AKG DYN60
Polar Pattern
Real Time Analyzer (RTA)
38. French broadcasting stereo mic technique; An X-Y type with the mics 17cm apart and at a 110
End Address
M/S Stereo
AKG C12
ORTF
39. 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.
Distance Factor
Fundamental Frequency
Shure SM58
SPL Meter
40. 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.
Fukada Tree
Side Address
Decca Tree
Model 3B Carbon Microphone
41. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Neumann KM-84
Polar Pattern
Mid/Side
Magnetic Induction Formula
42. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
Angle of Max Rejection
Over/Over
Types of Field Recording
Pressure Gradient Capsules
43. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125
Faulkner
Supercardioid
Sennheiser MD421
Microphone Storage
44. Close mic placement can help guard again bleed from other instruments and takes advantage of proximity effect; Center of cone = Brighter; Outside of cone = Darker; Reflections can create phase issues (can be reduced by putting the cabinet at an angle
Electret (Word Etymology)
Bass Amp Mic Placement
Clutch
Guitar Amp Mic Placement
45. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
Null Angle
Magnetic Induction Voltage
SASS-P
RFI
46. The first cardioid pattern dynamic microphone.
Noise
AKG D12
Cardioid (Electrical Polar Pattern)
Polar Pattern
47. Causes an increase in low frequency response as one gets closer to the source.
Telefunken ELA- M251
Interference Tube...
Proximity Effect
Magnetic Induction Formula
48. Sounds that arrive at the 0
Protractor & Ruler
5 Common Microphone Transducers
On -Axis
Transient Response
49. Shows the max sound pressure level possible with a certain amount of distortion; Measured in dB (decibels).
Null Angle
Vintage Tube Mic Precautions
Max SPL
Stereosonic
50. A gradual - continuous decrease in low frequency response.
Wind Screens
Roll-Off
Phasing
Pascals (Pa)