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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; 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.
Stereosonic
Microphone Care...
Percussion Mic Placement
Shure SM57
2. Shows the level of self- noise from a microphone's internal electronics; Measured in dB (decibels).
Noise
Cardioid
Capacitor Microphone
Hydrophone
3. 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.
Trumpet Mic Placement
Shure KSM-353
Bass Amp Mic Placement
DIN
4. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Baffle
Telefunken ELA- M251
Phase Ports
C-Weighting
5. Stereo configuration using a spaced pair 3-10 feet apart.
Backplate
AB Stereo
C-Weighting
Sennheiser e604
6. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.
AudioTechnica AT4051
Voice Coil
Shure SM58
Magnetic Induction Formula
7. Known as 'The Bottle' this was the first mass - produced condenser mic.
Fundamental Frequency
Pop Filter
Pierre Curie
Neumann CMV3
8. The graphic representation plot of the sensitivity of a microphone from any direction over a 360
Polar Pattern
Jecklin Disk
Stereosonic
Subcardioid
9. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Blumlein Pairing
Neumann KM 184
AKG D12
M/S Stereo
10. 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.
Georg Neumann
Roll-Off
Kick Tunnel
Types of Pre-Amps for Condenser Mics
11. Determined by: Ribbon Thickness (about 3 to 6 microns); Corrugations/Inch; Tension of the Ribbon.
Ribbon Microphone Sensitivity
Stereo
Bass Amp Mic Placement
Speed of Sound Underwater
12. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.
Max SPL
Stereosonic
Sennheiser MD441
Over/Over
13. Modern drummer who has created a large kit and innovated several ways of capturing the sound from his massive kit.
Mono
Pressure Capsules
Terry Bozzio
Crystal and Ceramic Mic Use
14. The outer covering of a microphone.
Ribbon Microphone Sensitivity
Shure SM81
OSHA Exposure Table
Casing
15. Allows all high frequencies to pass; Blocks the lower frequencies from being processed.
Cardioid
Highpass Filter
AudioTechnica AT2020
Kick Tunnel
16. E = Blv - e - Electromotive Force (in volts) - B - is the magnetic field strength - l - is the length of the conductor - v - is the velocity of the conductor moving through the magnetic field
C-Weighting
Examples of Piezoelectric Material
Magnetic Induction Formula
Percussion Mic Placement
17. 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.
Electret (Word Etymology)
Protractor & Ruler
Kick Tunnel
Cone
18. Measurement similar to how our hearing works in frequency response charts.
A-Weighting
Ribbon Microphone Sensitivity
Packing
Protractor & Ruler
19. 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.
Alan Blumlein
Shotgun
AKG C1000S
Off-Axis
20. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.
Ribbon Microphone Sensitivity
Crystal & Ceramic Microphones
Condenser Microphone
Guitar Amp Mic Placement
21. To break down or disassemble any portion of a set or stage set- up.
Striking
Distance Factor (DSF)
Crystal and Ceramic Mic Use
Doubling Ribbon Length
22. Shure's newer ribbon studio mics; KSM 353 & 313 (Roswellite); KSM 44 - 32 - & 27.
Parabolic Systems
Dynamic Mic Characteristics
Shure KSM Series
Mid/Side
23. Rotating speaker cabinet design featuring separate treble and bass drivers that can switch speeds; Speaker rotate from front to back creating a Doppler effect; Resulted in new spatial perception for each note. Stereo miked up top and single miked at
Bidirectional (Electrical Polar Pattern)
Leslie Cabinet
Alan Blumlein
Stereosonic
24. Commonly utilize large diaphragm dynamic mics.
Bass Amp Mic Placement
E.C. Wente
Ribbon Mic Characteristics
Mono
25. The reduction in the amplitude of a wave due to the dissipation of wave energy.
Faulkner
Dynamic Mic Characteristics
Counterbalance
Damping
26. Used for stereo miking to ensure correct balance and imaging.
Decca Tree
Capacitor Microphone
Matched Pairs
Percussion Mic Placement
27. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125
Tube Condenser Microphone
Capacitor
Supercardioid
Powering Condenser Microphones
28. Small microphone attached to the bridge of a string bass or to an acoustic guitar to amplify its sound.
AudioTechnica AT4051
Spherical Mic
Field Mixer
Pickup
29. 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
Near Coincident Pair
Ribbon Mic Characteristics
Wind Screens
30. An electrical device characterized by its capacity to store an electric charge;
Capacitor
Pascals (Pa)
Noise
Harvey Fletcher
31. When using multiple microphones - the distance between microphones should be at least 3 times the distance from each microphone to its intended sound source.
NOS
3:1 Rule
Protractor & Ruler
FFT Analyzer
32. 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.
X/Y
Capacitor
Backplate
Pickup
33. Condenser; Cardioid; End Address; Manufactured by Shure; Small condenser design that is great for instrument recording.
Shure SM81
Stereosonic
Magnetic Microphone
AB Stereo
34. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%
Ambient Sound Sensitivity
LRFB
Rode NT1A
Neumann U87
35. Device used to calibrate sound pressure measurement devices; Emits a single 1 kHz frequency over a sustained period of time.
Tube Condenser Microphone
Rear Sensitivity (Relative to Front)
Pistonphone
LRFB
36. 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.
Clutch
Distance Factor
M/S Stereo
Supercardioid
37. Founded AKG at the end of WWII in Austria.
Boom Placement Rule
Lowpass Filter
Rudolf Goerike & Ernest Pless
Carbon Microphone
38. Derived from two words; 'electr' from electrostatic and 'et' from magnet.
Condenser Microphone
Bidirectional
Shure SM58
Electret (Word Etymology)
39. 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.
Shiny Box 46MXL
Increasing Output Voltage in Ribbon Mics
Shotgun
AKG C12
40. 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
Electret Condenser
Trombone Mic Placement
Guitar Amp Mic Placement
Altec/Western Electric 639
41. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
Shockmount
Types of Field Recording
Alan Blumlein
Tuning Keys
42. An extremely strong acoustic nano- film designed to replace the foil ribbon in ribbon microphones.
Roswellite
Rudolf Goerike & Ernest Pless
Types of Pre-Amps for Condenser Mics
Capacitance
43. Allow sound to reach the rear of the capsule/diaphragm - to create cardioid - supercardioid - and hypercardioid patterns In single capsule pressure gradient microphones.
Clement Ader
Phase Ports
Nuvistor Tube
Polar Pattern
44. 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.
Wind Screens
Clutch
Rode NT1A
Condenser Diaphragm
45. Pair of omni mic separated by a circular absorptive baffle.
OSHA Exposure Table
Jecklin Disk
Backplate
On -Axis
46. 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.
Microphone Care...
Cone
Electret (Word Etymology)
Alan Blumlein
47. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
Decca Tree
Machine Head
Omnidirectional
Sensitivity
48. Term coined by Sir Charles Wheatstone derived from the Greek words 'micro' (small) & 'phon' (sound).
Coincident (Definition)
Percussion Mic Placement
Microphone (Word Etymology)
Shiny Box 46MXL
49. Electro- acoustic device attached to a transducer that vibrates to receive or produce sound waves which put the device into motion.
Diaphragm
Neumann KM 184
Frets
Shockmount
50. Demonstrated the first stereophonic transmissions via the Theatrophone in 1881.
Baffle
Clement Ader
Clutch
Crystal Mic Damage