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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. Coincident pairing angled between 90
Hypercardioid
Coincident Pair
X/Y
Altec/Western Electric 639
2. Angle of maximum signal rejection in a microphone polar pattern.
Null Angle
LRFB
Real Time Analyzer (RTA)
Bidirectional
3. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.
Electret (Word Etymology)
Model 3B Carbon Microphone
3 Voltages for Phantom Power
Hydrophone
4. Solid state version of the U67.
Transducer Type
Shure SM81
Neumann U87
OSHA Exposure Table
5. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.
Sensitivity
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Hydrophone
Leslie Cabinet
6. Used to make sure you have accurate angles & capsule spacing when miking in stereo.
Omnidirectional (Electrical Polar Pattern)
Real Time Analyzer (RTA)
Protractor & Ruler
Noise
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.
Proximity Effect
Ribbon Microphone
Guitar Amp Mic Placement
Boom Placement Rule
8. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
Neumann KM-84
Transient Response
Motor
Faraday's Law of Magnetic Induction
9. Condenser; Cardioid; End Address; Manufactured by Shure; Small condenser design that is great for instrument recording.
Faraday Cage
Neumann KM-84
Shure SM81
Transient Response
10. Sounds that arrive from angles other than the 0
Off-Axis
End Address
AKG C1000S
Backplate
11. Allow sound to reach the rear of the capsule/diaphragm - to create cardioid - supercardioid - and hypercardioid patterns In single capsule pressure gradient microphones.
5 Common Microphone Transducers
AKG D12
Phase Ports
Omnidirectional
12. Modeled to mimic a human head for extremely good spatialization; Shaped like a human head.
Blumlein Pairing
Highpass Filter
Binaural Mic
Reisz Marble Mic
13. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Wind Screens
Rode NT1A
Blumlein Pairing
Reverse Polarity
14. Causes an increase in low frequency response as one gets closer to the source.
Tuning Keys
Examples of Piezoelectric Material
Capacitor
Proximity Effect
15. Will yield a 6dB increase in output - but will cause a loss of high frequency response.
Dual Mono
Electret (Word Etymology)
Doubling Ribbon Length
Backplate
16. 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.
Neumann KM 184
AB Stereo
Shiny Box 46MXL
Cardioid (Electrical Polar Pattern)
17. The attachment that holds a microphone in place on the mic stand; Comes in various shapes - sizes - and applications.
Increasing Output Voltage in Ribbon Mics
Transducer Type
Clip
LRFB
18. Electro- acoustic device attached to a transducer that vibrates to receive or produce sound waves which put the device into motion.
Diaphragm
Soundfield
Lowpass Filter
Neumann KM 184
19. Known as 'The Bottle' this was the first mass - produced condenser mic.
Phasing
Capacitance
Neumann CMV3
Faraday Cage
20. 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
Powering Condenser Microphones
AKG D36
Roll-Off
21. + & + (Front & rear in equal positive amounts)
Omnidirectional (Electrical Polar Pattern)
Capacitor
Matched Pairs
Hydrophone
22. 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.
Shure SM58
Vintage Tube Mic Precautions
3 Voltages for Phantom Power
3:1 Rule
23. Developed the condenser microphone in 1916 at Bell Labs.
E.C. Wente
Wind Screens
Pierre Curie
Condenser Microphone
24. Big + & + (More front with less positive rear)
E.C. Wente
5 Common Microphone Transducers
Subcardioid (Electrical Polar Pattern)
Binaural Mic
25. When using two microphones reverse the polarity of the bottom mic.
Omnidirectional (Electrical Polar Pattern)
Shotgun
Snare Drum Mic Placement
Boom
26. One of the world's greatest condenser microphones prized for the CK12 capsule.
AKG DYN60
Neumann U87
AKG C12
Casing
27. Flat plate that controls or directs the flow of sound energy in a crystal/ceramic mic.
Increasing Output Voltage in Ribbon Mics
Magnetic Induction Voltage
Neumann KM 184
Baffle
28. An electrical device characterized by its capacity to store an electric charge;
Distance Factor
Capacitor
3:1 Rule
Field Mixer
29. Shows the total range of the mic's internal pre- amp; Measured in dB (decibels).
Crystal & Ceramic Microphones
Dynamic Range
Piezoelectric Effect
Over/Over
30. Device used to measure sound loudness; Often used to measure and balance the loudness of each speaker in a home - studio - or live venue or theater system.
Side Address
Magnetic Induction Formula
Nuvistor Tube
SPL Meter
31. The lowest - and usually most intense - frequency of a complex sound; Most often perceived as the sound's basic pitch.
Distance Factor
Shockmount
Phasing
Fundamental Frequency
32. 4800 ft/sec
Alan Blumlein
Speed of Sound Underwater
Piezoelectric Effect
Headstock
33. Bell Labs scientist that was an innovator of many spaced pair and arrayed miking techniques.
Harvey Fletcher
Interference Tube...
Kick Tunnel
Transducer Type
34. Tough & rugged; Can work in extremely high SPL environments; Less responsive to transient frequencies b/c of diaphragm mass is heavier than sound waves.
Mid/Side
AKG DYN60
E.C. Wente
Dynamic Mic Characteristics
35. Reduces the power of a signal used when the trim itself cannot prevent overload in the mic line level signal.
RFI
Pad
Shure SM58
Dual Mono
36. Aluminum Ribbon - Bi-Polar (Figure 8); Side Address; Manufactured by Shiny Box; Buttery mid- range improves digital recordings and smooths out modern treble; Best on drums - piano - overheads - and vocals where treble is focused.
Shiny Box 46MXL
Dynamic Mic Characteristics
Clip
Magnetic Microphone
37. German broadcasting stereo mic technique; An X-Y type with the mics 20cm apart and at a 90
Phase Ports
DIN
AKG D12
Transient Response
38. + (only); (Front capsule alone)
Cardioid (Electrical Polar Pattern)
Lowpass Filter
Nuvistor Tube
Neumann U87
39. The method by which microphones are classified.
Tuning Keys
Dynamic Microphone
Decca Tree
Transducer Type
40. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
Terry Bozzio
Machine Head
Measurement Mics
Hypercardioid/Supercardioid (Electrical Polar Pattern)
41. 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.
Cardioid (Electrical Polar Pattern)
AudioTechnica AT4040
AKG C1000S
Phasing
42. The head or top of the guitar where the tuning pegs are located.
Bidirectional (Electrical Polar Pattern)
Capacitor
Neumann U67
Headstock
43. Used to filter heating current in certain mics; Invented by Georg Neumann.
Hydrophone
Matched Pairs
Fingerboard
Sealed Ni-Cad Battery
44. Verify that the boom is placed over a microphone leg prior to use to provide added balance and stability.
Ribbon Microphone
AudioTechnica AT4040
Boom Placement Rule
Dynamic Range
45. Part of a mic stand that the mic stands on.
Baffle
Rode NT1A
Legs
Condenser Microphone
46. A stereo miking technique similar to coincident pair - where the mics are set up with some distance between them; Distance and angle of microphones may differ; Creates a more defined stereo image; Produces very sharp images; Provides more 'air'.
LRFB
Pascals (Pa)
Microphone Storage
Near Coincident Pair
47. Sub- frequency (below 100Hz) capture device designed for use with kick drums and floor toms as an alternative or supplement to a traditional microphone.
Types of Pre-Amps for Condenser Mics
Omnidirectional (Electrical Polar Pattern)
Subkick
Condenser Microphone
48. 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.
Cone
Georg Neumann
Off-Axis
Wind Screens
49. 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.
AudioTechnica AT2020
Clutch
Baffle
AKG DYN60
50. Often look like handheld vocal mics; Talk or sing into the end of the microphone.
End Address
Goals of Sound Effects
Pad
Faulkner