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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. 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.
MSM
Harvey Fletcher
Condenser Microphone
Mono
2. The head or top of the guitar where the tuning pegs are located.
Measurement Mics
Proximity Effect
Headstock
AKG C414
3. Known as 'The Bottle' this was the first mass - produced condenser mic.
Neumann CMV3
Trombone Mic Placement
Carbon Microphone Uses
DIN
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
Pascals (Pa)
Condenser Diaphragm
Sensitivity
5. 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.
Cardioid
Tuning Keys
Crystal Mic Damage
Types of Field Recording
6. The first cardioid pattern dynamic microphone.
Shure KSM-353
C-Weighting
AKG D12
Lowpass Filter
7. 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.
Noise
Backplate
RCA 44BX
Ribbon Microphone
8. Sounds that may be broadcast over the radio or internet.
ORTF
Mono
Stereosonic
Shiny Box 46MXL
9. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
Machine Head
Pickup
Trumpet Mic Placement
Casing
10. Term coined by Sir Charles Wheatstone derived from the Greek words 'micro' (small) & 'phon' (sound).
Microphone (Word Etymology)
Boom Placement Rule
Pressure Capsules
Faraday Cage
11. Pair of omni mic separated by a circular absorptive baffle.
Pascals (Pa)
Decca Tree
Bidirectional
Jecklin Disk
12. French physicist who pioneered piezoelectricity.
Bidirectional
Nuvistor Tube
Pierre Curie
Kick Tunnel
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.
Boom Placement Rule
Omnidirectional
Machine Head
Shure SM58
14. 4 coincident mics each positioned at 90
LRFB
Shockmount
Cone
Casing
15. Quartz; Barium Titaniate - Tourmaline; Rochelle Salt - and even cane sugar.
Examples of Piezoelectric Material
Shiny Box 46MXL
Pascals (Pa)
Leslie Cabinet
16. 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.
AKG D36
Body
Distance Factor
Types of Pre-Amps for Condenser Mics
17. Often look like handheld vocal mics; Talk or sing into the end of the microphone.
Faraday Cage
AKG C414
End Address
3 Voltages for Phantom Power
18. Part of a mic stand that the mic stands on.
Legs
Harvey Fletcher
Jecklin Disk
Shure KSM-353
19. Overall measurement close to the overall sound level in frequency response charts.
Pressure Capsules
C-Weighting
X/Y
End Address
20. 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.
Sennheiser e604
AKG C414
Altec/Western Electric 639
Rode NT1A
21. Three or more microphones working together to capture a stereo or surround image of the sound source.
Arrays
Carbon Microphone Uses
AudioTechnica AT2020
Bidirectional (Electrical Polar Pattern)
22. 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.
A-Weighting
Packing
Boom
Casing
23. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Polar Pattern
Clutch
Bidirectional (Electrical Polar Pattern)
Magnetic Induction Voltage
24. The first dynamic microphone with changeable polar patterns.
Over/Over
X/Y
AKG D36
Bidirectional (Electrical Polar Pattern)
25. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Electret Condenser
Voice Coil
Body
Mono
26. Tube microphone capable of SPL's over 140dB.
AudioTechnica AT4051
Trombone Mic Placement
Ambient Sound Sensitivity
Neumann U67
27. Tough & rugged; Can work in extremely high SPL environments; Less responsive to transient frequencies b/c of diaphragm mass is heavier than sound waves.
Sealed Ni-Cad Battery
Real Time Analyzer (RTA)
Dynamic Mic Characteristics
Hypercardioid/Supercardioid (Electrical Polar Pattern)
28. Radio Frequency Interference
SASS-P
ORTF
RFI
Headstock
29. Divisions on the fingerboard which represent the position of a specific note or tone.
Neumann KM-84
Pistonphone
Frets
Carbon Microphone
30. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Condenser Diaphragm
Roswellite
Rode NT1A
Electret (Word Etymology)
31. 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
Roll-Off
Guitar Amp Mic Placement
Crystal Mic Damage
Neumann U47
32. Big + & + (More front with less positive rear)
Shotgun
Subcardioid (Electrical Polar Pattern)
Pierre Curie
Capacitor
33. Will yield a 6dB increase in output - but will cause a loss of high frequency response.
Omnidirectional
Doubling Ribbon Length
Capacitor Microphone
Tuning Keys
34. Rotating speaker cabinet design featuring separate treble and bass drivers that can switch speeds; Speaker rotate from front to back creating a Doppler effect; Resulted in new spatial perception for each note. Stereo miked up top and single miked at
Doubling Ribbon Length
Leslie Cabinet
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Transient Response
35. 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.
AKG C12
Guitar Amp Mic Placement
Magnetic Microphone
Electro Voice RE20
36. - Omnidirectional: 1 - Cardioid: 1.7 - Supercardioid: 1.9 - Hypercardioid: 2 - Bidirectional: 1.7
RFI
Distance Factor (DSF)
Terry Bozzio
Voice Coil
37. Founded AKG at the end of WWII in Austria.
Protractor & Ruler
End Address
Lowpass Filter
Rudolf Goerike & Ernest Pless
38. 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.
Dynamic Mic Characteristics
Pop Filter
Doubling Ribbon Length
Rode NT1A
39. Shows the level of self- noise from a microphone's internal electronics; Measured in dB (decibels).
Noise
AudioTechnica AT2020
Condenser Microphone
Carbon Microphone
40. Raises the body of the microphone increasing height.
Clutch
Microphone Storage
AudioTechnica AT4051
Subcardioid
41. 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.
Over/Over
Pistonphone
Dynamic Mic Characteristics
AKG C414
42. 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.
Rudolf Goerike & Ernest Pless
Trumpet Mic Placement
Microphone Care...
NOS
43. 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.
Reverse Polarity
Coverage Angle
Microphone (Word Etymology)
Field Mixer
44. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.
Wind Screens
Kick Tunnel
Crystal & Ceramic Microphones
Arrays
45. 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
Subcardioid (Electrical Polar Pattern)
Reverse Polarity
Ambient Sound Sensitivity
46. Increasing magnetic field strength is the only practical means of increasing output voltage; Conductor movement is limited due to tension of the ribbon; and ribbon length increases lead to a loss of high frequency response.
Pierre Curie
Stereo Bar
Powering Condenser Microphones
Increasing Output Voltage in Ribbon Mics
47. The combination of the ribbon and magnet in a ribbon microphone.
NOS
AKG C1000S
Carbon Microphone
Motor
48. Sounds that arrive at the 0
Distance Factor
Near Coincident Pair
Transient Response
On -Axis
49. E = Blv - e - Electromotive Force (in volts) - B - is the magnetic field strength - l - is the length of the conductor - v - is the velocity of the conductor moving through the magnetic field
Magnetic Induction Formula
Over/Over
Hydrophone
Snare Drum Mic Placement
50. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
MSM
Ambient Sound Sensitivity
Rode NT1A
Pressure Gradient Capsules