SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Use coincident or near coincident pairings; Too many microphones will cause phasing issues.
Dynamic Mic Characteristics
Striking
Percussion Mic Placement
Neumann KM-84
2. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
AudioTechnica AT4040
Clutch
Transient Response
Pressure Capsules
3. Shows the max sound pressure level possible with a certain amount of distortion; Measured in dB (decibels).
Max SPL
Guitar Amp Mic Placement
Sensitivity
Soundfield
4. Solid state version of the U67.
Neumann U87
Distance Factor
Faraday's Law of Magnetic Induction
Carbon Microphone Uses
5. Stereo configuration using a spaced pair 3-10 feet apart.
AB Stereo
Bidirectional
Omnidirectional
Bandpass
6. 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.
Microphone (Word Etymology)
Percussion Mic Placement
Hypercardioid
Field Mixer
7. 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.
Rear Sensitivity (Relative to Front)
Side Address
Damping
AKG C414
8. Term coined by Sir Charles Wheatstone derived from the Greek words 'micro' (small) & 'phon' (sound).
DIN
Backplate
Microphone (Word Etymology)
A-Weighting
9. Causes an increase in low frequency response as one gets closer to the source.
Proximity Effect
NOS
Counterbalance
Neumann KM 184
10. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Goals of Sound Effects
Electret (Word Etymology)
Parabolic Systems
Sennheiser MD441
11. 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.
Shure SM58
Field Mixer
Fingerboard
A-Weighting
12. 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.
Neumann KM 184
Cardioid
Coverage Angle
Vintage Tube Mic Precautions
13. Tough & rugged; Can work in extremely high SPL environments; Less responsive to transient frequencies b/c of diaphragm mass is heavier than sound waves.
Dynamic Mic Characteristics
Subkick
MSM
Hypercardioid
14. The first cardioid pattern dynamic microphone.
AKG D12
Counterbalance
Highpass Filter
Pickup
15. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
SASS-P
Null Angle
Clement Ader
Shure Unidyne Series
16. 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;
Neumann U87
Soundfield
Reverse Polarity
M/S Stereo
17. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Polar Pattern
Magnetic Microphone
5 Common Microphone Transducers
Neumann U87
18. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Voice Coil
3 Voltages for Phantom Power
Theatrophone
Pop Filter
19. 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.
Bidirectional
Shotgun
ORTF
Coincident Pair
20. Very robust and durable; Used in telephones until 1990's; Currently finds applications for military use.
Carbon Microphone Uses
X/Y
Soundfield
Jecklin Disk
21. Device used to calibrate sound pressure measurement devices; Emits a single 1 kHz frequency over a sustained period of time.
Shure SM57
Pistonphone
Interference Tube...
Counterbalance
22. Big + & + (More front with less positive rear)
Rear Sensitivity (Relative to Front)
Subcardioid (Electrical Polar Pattern)
Tuning Keys
Bass Amp Mic Placement
23. The method by which microphones are classified.
Bidirectional (Electrical Polar Pattern)
Spaced Pairs
Sensitivity
Transducer Type
24. One of the oldest mics; Diaphragm mounted on & compresses cup of tiny granules of carbon (100 microns big) that increase current flow when compressed by sound waves and vary electrical current; Also called Resistance Mics;
Headstock
Telefunken ELA- M251
Blumlein Pairing
Carbon Microphone
25. Most sensitive to sounds arriving from the front while rejecting sounds from rear; Shaped like a heart; Rejects most signals from 180
Neumann CMV3
Cardioid
DIN
Over/Over
26. 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
Guitar Amp Mic Placement
Binaural Mic
Measurement Mics
C-Weighting
27. Used in adverse conditions to protect from elements like sand - or dust.
Cardioid
Omnidirectional (Electrical Polar Pattern)
Mid/Side
Wind Screens
28. Carbon; Ceramic/Crystal; Magnetic/Dynamic; Ribbon; Condenser
5 Common Microphone Transducers
Neumann KM 184
AKG C414
Microphone Storage
29. Basket/grille made out of a specific type of copper wire to block protect the mic from physical damage and to protect the mic from stray RFI
Rear Sensitivity (Relative to Front)
Faraday Cage
Doubling Ribbon Length
AudioTechnica AT4040
30. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
Trombone Mic Placement
DIN
Sensitivity
Legs
31. More compelling sound - giving both depth and perspective.
Binaural Mic
Pop Filter
Angle of Max Rejection
Stereo
32. A gradual - continuous decrease in low frequency response.
Neumann KM 184
Transient Response
Tube Condenser Microphone
Roll-Off
33. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Model 3B Carbon Microphone
M/S Stereo
Neumann KM 184
Hypercardioid/Supercardioid (Electrical Polar Pattern)
34. 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
Hypercardioid
Stereo
Ambient Sound Sensitivity
35. Condenser; Cardioid; End Address; 48V Required; Manufactured by Neumann; Consists of three compact miniature microphones; Has a gentle rise at about 9 kHz that provides tonal balance that is fresher and livelier.
Ambient Sound Sensitivity
Theatrophone
Neumann KM 184
Bass Amp Mic Placement
36. Mic in which the diaphragm moves in response to sound waves and an attached pin/rod moves; Coil attached to pin/rod moves alone with the diaphragm.
Magnetic Microphone
SASS-P
Trombone Mic Placement
Shure SM81
37. Often look like handheld vocal mics; Talk or sing into the end of the microphone.
End Address
Over/Over
Binaural Mic
Omnidirectional
38. Shure's newer ribbon studio mics; KSM 353 & 313 (Roswellite); KSM 44 - 32 - & 27.
Shure KSM Series
Rear Sensitivity (Relative to Front)
Lowpass Filter
Capacitance
39. Cable wrapping method that reduces interference and makes it easier to unravel the cable.
Sensitivity
SPL Meter
Over/Under
Examples of Piezoelectric Material
40. Sounds that arrive at the 0
Lowpass Filter
Shure SM57
On -Axis
Soundfield
41. Bell Labs scientist that was an innovator of many spaced pair and arrayed miking techniques.
Microphone Care...
Faraday Cage
Harvey Fletcher
Real Time Analyzer (RTA)
42. Electro- acoustic device attached to a transducer that vibrates to receive or produce sound waves which put the device into motion.
Diaphragm
Cone
Condenser Microphone
Sennheiser MD421
43. Microphone with 4 large diaphragm condenser capsules; 3 bidirectional and 1 omni; Can be combined to make any polar pattern.
Highpass Filter
Nuvistor Tube
Soundfield
Jecklin Disk
44. 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.
Max SPL
Phasing
Mono
Stereo Bar
45. Big + & - (More front with less opposite rear)
Body
Crystal Mic Damage
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Capacitor
46. 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
X/Y
Subkick
Diaphragm
47. French physicist who pioneered piezoelectricity.
Nuvistor Tube
Georg Neumann
Parabolic Systems
Pierre Curie
48. Used for stereo miking to ensure correct balance and imaging.
Coverage Angle
Pistonphone
Matched Pairs
Condenser Diaphragm
49. 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.
Cardioid
Condenser Diaphragm
5 Common Microphone Transducers
Dynamic Mic Characteristics
50. Utilized primarily on condenser and ribbon mics to isolate it from vibrations that might otherwise be transmitted to the microphone through the mic stand.
AudioTechnica AT2020
Shockmount
Roll-Off
Shure SM57