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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. 12V DC; 24V DC; 48V DC
Crystal and Ceramic Mic Use
Stereo Bar
Georg Neumann
3 Voltages for Phantom Power
2. Pure polar pattern with which the microphone is equally sensitive in all directions; Great for capturing ambiance or room reverb.
Model 3B Carbon Microphone
Magnetic Induction Formula
Omnidirectional
Angle of Max Rejection
3. Most sensitive to sounds arriving from the front while rejecting sounds from rear; Shaped like a heart; Rejects most signals from 180
Cardioid
Shure KSM Series
X/Y
Shure SM58
4. The first AKG dynamic microphone.
Coverage Angle
Hypercardioid/Supercardioid (Electrical Polar Pattern)
X/Y
AKG DYN60
5. EMI employee that was the innovator of many coincident pairing mic techniques; Mid/Side & Blumlein techniques are associated with him.
ORTF
Alan Blumlein
Electro Voice RE20
Motor
6. The first phantom powered condenser microphone designed for use by Georg Neumann for Norwegian State Television.
Neumann KM-84
Sennheiser MD421
Dual Mono
Frets
7. This is what is measured to produce an electrical signal in condenser mics; This changes as sound waves strike the diaphragm causing the distance to the back plate to change.
Neumann KM 184
Capacitance
Spherical Mic
Trumpet Mic Placement
8. 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
Crystal & Ceramic Microphones
Proximity Effect
Guitar Amp Mic Placement
Nuvistor Tube
9. Used for stereo miking to ensure correct balance and imaging.
Matched Pairs
Side Address
Microphone Care...
Angle of Max Rejection
10. Part of a mic stand that the mic stands on.
Over/Over
SPL Meter
Legs
Subcardioid (Electrical Polar Pattern)
11. Mounts on a single stand to provide for adjustable spacing and angling between mics.
Stereo Bar
Subcardioid (Electrical Polar Pattern)
Neumann KM-84
Ambient Sound Sensitivity
12. 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.
Crystal & Ceramic Microphones
Types of Field Recording
Cone
Body
13. Pair of omni mic separated by a circular absorptive baffle.
Jecklin Disk
M/S Stereo
AudioTechnica AT4040
Reverse Polarity
14. The method by which microphones are classified.
Shure Unidyne Series
Subcardioid (Electrical Polar Pattern)
Ribbon Microphone Sensitivity
Transducer Type
15. Shure's newer ribbon studio mics; KSM 353 & 313 (Roswellite); KSM 44 - 32 - & 27.
Tube Condenser Microphone
Pierre Curie
Shure KSM Series
M/S Stereo
16. Delicate and require extreme care; NO PHANTOM POWER; Becoming more popular than ever because of highly efficient magnets - lower manufacturing costs - and great fidelity.
C-Weighting
Distance Factor (DSF)
Roswellite
Ribbon Mic Characteristics
17. Allows all low frequencies to pass; Blocks the higher frequencies from being processed.
Neumann KM-84
Hypercardioid
Lowpass Filter
Measurement Mics
18. Stereo configuration using a spaced pair 3-10 feet apart.
Types of Field Recording
AB Stereo
Sennheiser MD421
Dynamic Mic Characteristics
19. The arm of the mic stand; Includes the angle adjust & telescopic adjust.
Boom
Spaced Pairs
Bass Amp Mic Placement
Frets
20. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.
Model 3B Carbon Microphone
Pressure Gradient Capsules
Sennheiser e604
Blumlein Pairing
21. Angle of maximum signal rejection in a microphone polar pattern.
Microphone Storage
AKG C1000S
Null Angle
Motor
22. An extremely strong acoustic nano- film designed to replace the foil ribbon in ribbon microphones.
Cone
Roswellite
AKG C12
Frets
23. Measurement similar to how our hearing works in frequency response charts.
Types of Field Recording
A-Weighting
Pistonphone
E.C. Wente
24. Quartz; Barium Titaniate - Tourmaline; Rochelle Salt - and even cane sugar.
Binaural Mic
Mono
Examples of Piezoelectric Material
Ribbon Microphone Sensitivity
25. When using multiple microphones - the distance between microphones should be at least 3 times the distance from each microphone to its intended sound source.
Over/Under
Motor
3:1 Rule
Pickup
26. Often look like handheld vocal mics; Talk or sing into the end of the microphone.
A-Weighting
End Address
Subcardioid (Electrical Polar Pattern)
Shockmount
27. 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.
Capacitor
Clutch
C-Weighting
Condenser Diaphragm
28. Causes an increase in low frequency response as one gets closer to the source.
Proximity Effect
Shure SM58
Dynamic Microphone
Body
29. Divisions on the fingerboard which represent the position of a specific note or tone.
Frets
Spherical Mic
Shure Unidyne Series
Cardioid (Electrical Polar Pattern)
30. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
Measurement Mics
Model 3B Carbon Microphone
Shure SM58
Sensitivity
31. The attachment that holds a microphone in place on the mic stand; Comes in various shapes - sizes - and applications.
Protractor & Ruler
Cardioid
Clip
DIN
32. First to mass produce the condenser microphone in 1929; Improved cutting lathe technology by developing direct drive turntables; Invents 48V Phantom Power to power the new condenser microphone for Norwegian State Television.
Fingerboard
Clip
Georg Neumann
End Address
33. Never store mic in a damp place; Keep dirt & dust away from the mic; Never 'pop' test the mic; Check if a mic is working by lightly scratching the grill.
Roswellite
Percussion Mic Placement
Microphone Care...
Neumann U47
34. Best signal- to- noise ratio; Minimal phase cancellation; Quality representation of what is being recorded; Attempt to ignore unwanted external noise.
Goals of Sound Effects
Rudolf Goerike & Ernest Pless
Types of Field Recording
Shure KSM-353
35. Dynamic; Cardioid; End Address; Manufactured by Shure; Popular musicians' choice due to its sturdy construction and ability to work well with instruments that produce high sound pressure levels.
Harvey Fletcher
Shure SM57
Neumann CMV3
Electret Condenser
36. French physicist who pioneered piezoelectricity.
Spherical Mic
Pistonphone
Microphone (Word Etymology)
Pierre Curie
37. 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
Measurement Mics
Neumann U67
Pistonphone
38. Omnidirectional: N/ - Cardioid: 180
Highpass Filter
Angle of Max Rejection
Goals of Sound Effects
Coincident Pair
39. 2 - 4 ft. from player; Placed below the line of sight of the bell - rotated at about 30 degrees off axis - and tilted upward.
Voice Coil
Near Coincident Pair
Trombone Mic Placement
Reisz Marble Mic
40. Solid State and Tube.
Types of Pre-Amps for Condenser Mics
RCA 44BX
Mono
NOS
41. Developed the condenser microphone in 1916 at Bell Labs.
E.C. Wente
Microphone Storage
Bidirectional
AKG C1000S
42. Used in adverse conditions to protect from elements like sand - or dust.
Ribbon Microphone
X/Y
Nuvistor Tube
Wind Screens
43. 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
Theatrophone
Dynamic Microphone
AB Stereo
44. Bell Labs scientist that was an innovator of many spaced pair and arrayed miking techniques.
Doubling Ribbon Length
FFT Analyzer
ORTF
Harvey Fletcher
45. 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.
Ribbon Microphone
Side Address
Trombone Mic Placement
AudioTechnica AT2020
46. Tube with ports down the side with the mic capsule at the bottom; Sounds entering the tube from on - axis interact inside the tube with the sounds coming in through the side ports - an interfere with each other in such a way as to partially cancel of
Damping
Cardioid
Interference Tube...
Stereo
47. Known as 'The Bottle' this was the first mass - produced condenser mic.
Pascals (Pa)
5 Common Microphone Transducers
Neumann CMV3
Speed of Sound Underwater
48. 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.
Shotgun
Trumpet Mic Placement
Rear Sensitivity (Relative to Front)
Leslie Cabinet
49. 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.
Neumann U47
Magnetic Induction Formula
Bidirectional
X/Y
50. Very robust and durable; Used in telephones until 1990's; Currently finds applications for military use.
ORTF
Dual Mono
LRFB
Carbon Microphone Uses