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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. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Speed of Sound Underwater
Sennheiser MD441
Coincident (Definition)
Snare Drum Mic Placement
2. 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).
AudioTechnica AT4051
Piezoelectric Effect
Sennheiser e604
Types of Pre-Amps for Condenser Mics
3. 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.
Condenser Diaphragm
Percussion Mic Placement
AudioTechnica AT4051
Frets
4. Used for stereo miking to ensure correct balance and imaging.
Faraday Cage
Matched Pairs
Cardioid (Electrical Polar Pattern)
Reverse Polarity
5. Verify that the boom is placed over a microphone leg prior to use to provide added balance and stability.
Boom Placement Rule
Soundfield
Bass Amp Mic Placement
Over/Over
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.
Dynamic Range
Faulkner
Shotgun
Blumlein Pairing
7. 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.
Transducer Type
AKG C1000S
Bass Amp Mic Placement
Wind Screens
8. Big + & + (More front with less positive rear)
C-Weighting
Capacitance
Subcardioid (Electrical Polar Pattern)
Magnetic Microphone
9. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
Types of Field Recording
Stereo Bar
Crystal & Ceramic Microphones
Ambient Sound Sensitivity
10. French broadcasting stereo mic technique; An X-Y type with the mics 17cm apart and at a 110
AKG D36
ORTF
Voice Coil
Ribbon Microphone Sensitivity
11. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Protractor & Ruler
Fukada Tree
Telefunken ELA- M251
Reverse Polarity
12. Allows all low frequencies to pass; Blocks the higher frequencies from being processed.
X/Y
Neumann KM-84
Lowpass Filter
Damping
13. 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.
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Diaphragm
Packing
Neumann KM 184
14. 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
Alan Blumlein
Supercardioid
Cardioid
15. 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.
AudioTechnica AT4040
Matched Pairs
Sennheiser e604
A-Weighting
16. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.
Tuning Keys
Shure KSM-353
Faulkner
Hydrophone
17. Determined by: Ribbon Thickness (about 3 to 6 microns); Corrugations/Inch; Tension of the Ribbon.
Ribbon Microphone Sensitivity
Terry Bozzio
3 Voltages for Phantom Power
Shure SM58
18. When miking an amp placing it near the center of this will make it sound brighter; Miking near the outer edge of this will make it sound darker and more mellow in tone.
Striking
Arrays
Cone
Roll-Off
19. Tube manufactured for the new version of the AKG C12 (called the C12-A); Powered by Norelco.
Shure KSM-353
FFT Analyzer
Electro Voice RE20
Nuvistor Tube
20. Pair of omni mic separated by a circular absorptive baffle.
Counterbalance
Neumann KM 184
Neumann KM-84
Jecklin Disk
21. Device or transducer used for converting sound waves or acoustical energy into electrical energy
Microphone (Definition)
Legs
Neumann CMV3
Pop Filter
22. EMI employee that was the innovator of many coincident pairing mic techniques; Mid/Side & Blumlein techniques are associated with him.
Protractor & Ruler
Alan Blumlein
Shure KSM Series
Types of Pre-Amps for Condenser Mics
23. Used to make sure you have accurate angles & capsule spacing when miking in stereo.
Packing
Striking
LRFB
Protractor & Ruler
24. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.
Hypercardioid
Spaced Pairs
Over/Over
Parabolic Systems
25. Commonly found in acoustic guitar pickups; Ceramic piezoelectric material is used in hydrophones (underwater mics) because of durability.
MSM
LRFB
Crystal and Ceramic Mic Use
Rudolf Goerike & Ernest Pless
26. 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.
Parabolic Systems
Shure SM81
Cardioid (Electrical Polar Pattern)
Trumpet Mic Placement
27. Often look like large diaphragm studio mics; Talk or sing into the side of the microphone.
Arrays
Types of Pre-Amps for Condenser Mics
Side Address
Striking
28. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
Side Address
Bass Amp Mic Placement
Machine Head
Spaced Pairs
29. Divisions on the fingerboard which represent the position of a specific note or tone.
Pierre Curie
OSHA Exposure Table
Lowpass Filter
Frets
30. 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.
Matched Pairs
MSM
Vintage Tube Mic Precautions
Boom
31. 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.
Condenser Microphone
Pierre Curie
Distance Factor
Nuvistor Tube
32. To break down or disassemble any portion of a set or stage set- up.
Distance Factor (DSF)
Striking
Stereo Bar
Capacitor
33. 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.
Spaced Pairs
Headstock
Capacitance
Null Angle
34. Sensitive in a narrower pattern in the front than a cardioid and has a prominent/pronounced lobe at rear; Rejects most signals from 110
Shure KSM Series
Types of Pre-Amps for Condenser Mics
Measurement Mics
Hypercardioid
35. Tube microphone capable of SPL's over 140dB.
Blumlein Pairing
Types of Field Recording
Neumann U67
Cardioid (Electrical Polar Pattern)
36. The lowest - and usually most intense - frequency of a complex sound; Most often perceived as the sound's basic pitch.
Highpass Filter
Fundamental Frequency
Ribbon Mic Characteristics
Mid/Side
37. 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
Rudolf Goerike & Ernest Pless
Roll-Off
Cardioid
38. 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.
AudioTechnica AT4051
Bidirectional
Sealed Ni-Cad Battery
Fundamental Frequency
39. Responds to air pressure variations outside of the capsule; Not selective of direction; Natural polar pattern is omnidirectional.
Mid/Side
Pressure Capsules
Noise
Microphone Storage
40. 12V DC; 24V DC; 48V DC
M/S Stereo
Sennheiser e604
3 Voltages for Phantom Power
Reisz Marble Mic
41. The measuring device used for loudspeaker room response testing.
Real Time Analyzer (RTA)
Baffle
Coverage Angle
Shiny Box 46MXL
42. More compelling sound - giving both depth and perspective.
Stereo
Distance Factor
Neumann U67
Altec/Western Electric 639
43. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Hydrophone
Clement Ader
Blumlein Pairing
Cone
44. Polar pattern produced when you add a little bit of bidirectional to the omni pattern.
Counterbalance
Increasing Output Voltage in Ribbon Mics
Side Address
Subcardioid
45. 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)
Cardioid (Electrical Polar Pattern)
Snare Drum Mic Placement
MSM
46. Used in adverse conditions to protect from elements like sand - or dust.
Wind Screens
Cardioid
X/Y
Field Mixer
47. 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
Altec/Western Electric 639
FFT Analyzer
Microphone (Word Etymology)
48. Use coincident or near coincident pairings; Too many microphones will cause phasing issues.
On -Axis
Damping
Clement Ader
Percussion Mic Placement
49. Causes an increase in low frequency response as one gets closer to the source.
RFI
Proximity Effect
Over/Under
Electro Voice RE20
50. 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.
Tube Condenser Microphone
Electret Condenser
MSM
Capacitance