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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. EMI employee that was the innovator of many coincident pairing mic techniques; Mid/Side & Blumlein techniques are associated with him.
Alan Blumlein
Carbon Microphone Uses
Near Coincident Pair
Soundfield
2. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
Near Coincident Pair
Voice Coil
Rear Sensitivity (Relative to Front)
Cardioid
3. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
Proximity Effect
Types of Field Recording
Fukada Tree
Field Mixer
4. 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.
FFT Analyzer
Piezoelectric Effect
Shure SM57
Microphone (Definition)
5. Very robust and durable; Used in telephones until 1990's; Currently finds applications for military use.
Carbon Microphone Uses
Georg Neumann
Hydrophone
Faraday Cage
6. The first dynamic microphone with changeable polar patterns.
Magnetic Induction Formula
AKG D36
Counterbalance
Neumann KM-84
7. Small Diaphragm Electret condensers; Extremely flat frequency response; Omnidirectional pattern.
Measurement Mics
Roswellite
Omnidirectional
Fingerboard
8. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Phasing
Headstock
Sennheiser MD441
Faraday Cage
9. Shure's ribbon microphone that utilizes Roswellite to prevent ribbon damage.
Bidirectional (Electrical Polar Pattern)
Neumann KM-84
AudioTechnica AT2020
Shure KSM-353
10. Sensitive in a narrower pattern in the front than a cardioid and has a prominent/pronounced lobe at rear; Rejects most signals from 110
Tube Condenser Microphone
Electro Voice RE20
Trumpet Mic Placement
Hypercardioid
11. Commonly found in acoustic guitar pickups; Ceramic piezoelectric material is used in hydrophones (underwater mics) because of durability.
Ribbon Microphone
Crystal and Ceramic Mic Use
Faulkner
Types of Pre-Amps for Condenser Mics
12. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.
SASS-P
Coincident (Definition)
Subkick
Sennheiser MD421
13. 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.
Clement Ader
Nuvistor Tube
AKG D12
Increasing Output Voltage in Ribbon Mics
14. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Legs
Kick Tunnel
Field Mixer
Telefunken ELA- M251
15. Fixed plate that is charged with polarized voltage found in condenser mics; Usually constructed of milled brass; Has a number of holes drilled in it to provide damping for diaphragm.
Motor
Packing
Backplate
M/S Stereo
16. The first phantom powered condenser microphone designed for use by Georg Neumann for Norwegian State Television.
Neumann KM-84
Shure SM81
Soundfield
Jecklin Disk
17. Stereo configuration using a spaced pair 3-10 feet apart.
DIN
Speed of Sound Underwater
AB Stereo
X/Y
18. Magnetic field opposite to that which presently exists; Do this on the bottom mic when miking a snare with two mics.
Altec/Western Electric 639
Reverse Polarity
Snare Drum Mic Placement
Carbon Microphone
19. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Faulkner
Electret (Word Etymology)
Neumann KM 184
Shure Unidyne Series
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
Rear Sensitivity (Relative to Front)
Microphone (Definition)
Hypercardioid
21. 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.
SPL Meter
Pascals (Pa)
Boom
Shotgun
22. 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.
On -Axis
Electro Voice RE20
Magnetic Induction Formula
Stereo
23. Pair of omni mic elements mounted on opposite sides of a spherical shaped capsule.
Spherical Mic
Ambient Sound Sensitivity
Electro Voice RE20
Model 3B Carbon Microphone
24. Filters only the bandwidth of frequencies that are supposed to (or allowed) to pass through; High and Low Pass are examples.
Bandpass
Magnetic Induction Formula
Shure SM57
Ribbon Mic Characteristics
25. When using two microphones reverse the polarity of the bottom mic.
Matched Pairs
Snare Drum Mic Placement
Over/Over
Shotgun
26. Solid state version of the U67.
Neumann U87
Electret Condenser
AKG D36
Subkick
27. Angle of maximum signal rejection in a microphone polar pattern.
Shure SM57
LRFB
Transducer Type
Null Angle
28. The arm of the mic stand; Includes the angle adjust & telescopic adjust.
AudioTechnica AT2020
Carbon Microphone Uses
Boom
AKG C1000S
29. Voltage applied to piezoelectric material will cause it to deform or change shape; NO PHANTOM POWER!
Crystal Mic Damage
Real Time Analyzer (RTA)
3 Voltages for Phantom Power
Ribbon Microphone
30. Divisions on the fingerboard which represent the position of a specific note or tone.
Capacitor
AKG C12
Frets
Faulkner
31. Shows the level of self- noise from a microphone's internal electronics; Measured in dB (decibels).
Piezoelectric Effect
Legs
Noise
Polar Pattern
32. Method of creating low end effects from a bass drum by creating a tunnel at the mic end thus trapping sound and amplifying low end boost.
Crystal & Ceramic Microphones
Nuvistor Tube
LRFB
Kick Tunnel
33. DC Voltage Req'd for capsule polarizing voltage and internal mic preamps; 3 sources: External Power Supply Unit (PSU); Phantom Power; Battery.
Ribbon Microphone
Electro Voice RE20
Crystal Mic Damage
Powering Condenser Microphones
34. Commonly utilize large diaphragm dynamic mics.
AKG C414
Spherical Mic
Goals of Sound Effects
Bass Amp Mic Placement
35. Allow sound to reach the rear of the capsule/diaphragm - to create cardioid - supercardioid - and hypercardioid patterns In single capsule pressure gradient microphones.
Decca Tree
Max SPL
Phase Ports
Shiny Box 46MXL
36. 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
Shiny Box 46MXL
Stereosonic
Omnidirectional
37. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.
Shure SM58
Pressure Gradient Capsules
Pistonphone
Powering Condenser Microphones
38. Coincident pairing angled between 90
Body
C-Weighting
X/Y
Terry Bozzio
39. 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'.
Phase Ports
LRFB
Near Coincident Pair
Sennheiser MD421
40. Pair of omni mic separated by a circular absorptive baffle.
Jecklin Disk
Types of Field Recording
Capacitor Microphone
Highpass Filter
41. The head or top of the guitar where the tuning pegs are located.
Over/Under
Tube Condenser Microphone
Headstock
Altec/Western Electric 639
42. 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.
Proximity Effect
Georg Neumann
Max SPL
AKG C1000S
43. More compelling sound - giving both depth and perspective.
DIN
Stereo
Transducer Type
Faulkner
44. A gradual - continuous decrease in low frequency response.
Microphone Storage
Roll-Off
Coverage Angle
Tube Condenser Microphone
45. 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.
Fingerboard
Mid/Side
Tube Condenser Microphone
Terry Bozzio
46. Quartz; Barium Titaniate - Tourmaline; Rochelle Salt - and even cane sugar.
Shure Unidyne Series
Examples of Piezoelectric Material
Tuning Keys
M/S Stereo
47. Mid-Section of the mic stand; Includes the clutch.
DIN
Piezoelectric Effect
Body
Field Mixer
48. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.
Hypercardioid/Supercardioid (Electrical Polar Pattern)
Shockmount
Over/Over
Condenser Microphone
49. 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
Piezoelectric Effect
Goals of Sound Effects
AudioTechnica AT2020
50. Small microphone attached to the bridge of a string bass or to an acoustic guitar to amplify its sound.
Pickup
Rear Sensitivity (Relative to Front)
Null Angle
Lowpass Filter