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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. Allows all low frequencies to pass; Blocks the higher frequencies from being processed.
Lowpass Filter
Headstock
Shure KSM-353
Polar Pattern
2. The reduction in the amplitude of a wave due to the dissipation of wave energy.
Soundfield
MSM
Damping
Roll-Off
3. Founded AKG at the end of WWII in Austria.
AKG D12
Rudolf Goerike & Ernest Pless
Null Angle
Magnetic Microphone
4. 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.
Side Address
AKG C1000S
MSM
Subcardioid (Electrical Polar Pattern)
5. 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.
Backplate
Pickup
Subcardioid (Electrical Polar Pattern)
AKG C12
6. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.
A-Weighting
Machine Head
Striking
Fundamental Frequency
7. Sounds that may be broadcast over the radio or internet.
Mono
Neumann U87
Jecklin Disk
Ambient Sound Sensitivity
8. Flat plate that controls or directs the flow of sound energy in a crystal/ceramic mic.
Noise
Baffle
Decca Tree
Theatrophone
9. Pure polar pattern with which the microphone is equally sensitive in all directions; Great for capturing ambiance or room reverb.
Subcardioid
AudioTechnica AT4051
Omnidirectional
Increasing Output Voltage in Ribbon Mics
10. The world's first single element cardioid mics.
Trumpet Mic Placement
E.C. Wente
Shure Unidyne Series
Magnetic Induction Formula
11. 2 - 4 ft. from player; Placed below the line of sight of the bell - rotated at about 30 degrees off axis - and tilted upward.
Crystal and Ceramic Mic Use
Faraday Cage
Trombone Mic Placement
Magnetic Induction Voltage
12. 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.
RCA 44BX
Max SPL
Crystal and Ceramic Mic Use
Bidirectional
13. Very robust and durable; Used in telephones until 1990's; Currently finds applications for military use.
Magnetic Microphone
Carbon Microphone Uses
Subcardioid
Fukada Tree
14. 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
Faraday Cage
Types of Pre-Amps for Condenser Mics
Binaural Mic
Neumann U67
15. Built by AKG for Telefunken and regarded as one of the best vintage condenser microphones ever.
Legs
On -Axis
Telefunken ELA- M251
Fingerboard
16. Shows the total range of the mic's internal pre- amp; Measured in dB (decibels).
AB Stereo
Dynamic Range
Terry Bozzio
Ribbon Microphone Sensitivity
17. Considered to be the best mic ever made; VF14 Tube.
Types of Field Recording
Max SPL
Neumann U47
Hydrophone
18. Best signal- to- noise ratio; Minimal phase cancellation; Quality representation of what is being recorded; Attempt to ignore unwanted external noise.
Boom Placement Rule
Pascals (Pa)
3 Voltages for Phantom Power
Goals of Sound Effects
19. To oppose with equal weight or force as in the length of the boom arm versus the weight of the microphone.
Boom
Counterbalance
MSM
Neumann CMV3
20. Divisions on the fingerboard which represent the position of a specific note or tone.
Frets
Faraday Cage
Clement Ader
AB Stereo
21. 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 Mic Damage
Body
Snare Drum Mic Placement
Cone
22. The first dynamic microphone with changeable polar patterns.
AKG D36
Stereo
Omnidirectional (Electrical Polar Pattern)
Ribbon Mic Characteristics
23. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.
Hydrophone
Coincident (Definition)
Subkick
5 Common Microphone Transducers
24. Commonly utilize large diaphragm dynamic mics.
Bass Amp Mic Placement
Cardioid
Off-Axis
Shure KSM Series
25. 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
Legs
Shure SM57
Types of Field Recording
Magnetic Induction Formula
26. Digital device used to Fourier Forms; Used to measure the specific number of sine waves in a specific frequency in a specific setting.
Pressure Gradient Capsules
On -Axis
Frets
FFT Analyzer
27. Responds to air pressure variations outside of the capsule; Not selective of direction; Natural polar pattern is omnidirectional.
Speed of Sound Underwater
Distance Factor (DSF)
Pressure Capsules
OSHA Exposure Table
28. Measurement of the mic's sensitivity; Measured in mV/Pa (millivolts per Pascal).
Coverage Angle
Sensitivity
Carbon Microphone
Null Angle
29. Radio Frequency Interference
Boom Placement Rule
Pressure Capsules
RFI
Jecklin Disk
30. The measure of how quickly a mic's diaphragm will react when it is hit by an acoustic sound wave.
Transient Response
FFT Analyzer
Omnidirectional
Angle of Max Rejection
31. Barrier made of shaped wire covered with a piece of nylon that is placed between a sensitive mic and the talent to avoid damage to the diaphragm of the mic.
OSHA Exposure Table
X/Y
Pop Filter
Shure SM57
32. Big + & + (More front with less positive rear)
Terry Bozzio
Subcardioid (Electrical Polar Pattern)
AKG C1000S
Ambient Sound Sensitivity
33. Solid state version of the U67.
Neumann U87
Shure KSM-353
Bass Amp Mic Placement
Roswellite
34. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.
Dynamic Microphone
Distance Factor
Rudolf Goerike & Ernest Pless
Voice Coil
35. Tube manufactured for the new version of the AKG C12 (called the C12-A); Powered by Norelco.
Trumpet Mic Placement
Terry Bozzio
Nuvistor Tube
Neumann CMV3
36. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.
Pascals (Pa)
Headstock
Alan Blumlein
Types of Field Recording
37. 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.
Carbon Microphone
Kick Tunnel
Shure KSM Series
Mid/Side
38. 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.
Real Time Analyzer (RTA)
Lowpass Filter
Sennheiser e604
Crystal and Ceramic Mic Use
39. 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.
Ribbon Mic Characteristics
Capacitor
Phasing
3:1 Rule
40. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.
Blumlein Pairing
Pressure Gradient Capsules
Coverage Angle
Dual Mono
41. + & + (Front & rear in equal positive amounts)
Omnidirectional (Electrical Polar Pattern)
AB Stereo
Microphone Storage
Arrays
42. Dynamic; Cardioid; End Address; Manufactured by Sennheiser; Unique mic clip with quick- release button; Large diaphragm dynamic element handles high SPL's - making it great for recording guitars and drums.
Shiny Box 46MXL
Sennheiser MD421
AKG C12
Distance Factor (DSF)
43. 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.
Kick Tunnel
Neumann U87
Increasing Output Voltage in Ribbon Mics
Crystal & Ceramic Microphones
44. Phenomenon causing carbon microphones to lose sensitivity as granules become packed together over extended use; To remedy problem mic is gently rapped on hard surface.
Reisz Marble Mic
Magnetic Induction Voltage
Packing
Interference Tube...
45. Modern drummer who has created a large kit and innovated several ways of capturing the sound from his massive kit.
AudioTechnica AT4040
Terry Bozzio
Electret (Word Etymology)
Tuning Keys
46. When using two microphones reverse the polarity of the bottom mic.
E.C. Wente
NOS
Snare Drum Mic Placement
Shure SM58
47. Condenser; Cardioid; Side Address; 48V Required; Large Diaphragm; Manufactured by AudioTechnica; Transformerless circuitry virtually eliminates low- frequency distortion.
Dual Mono
Ribbon Microphone
Highpass Filter
AudioTechnica AT4040
48. Sub- frequency (below 100Hz) capture device designed for use with kick drums and floor toms as an alternative or supplement to a traditional microphone.
C-Weighting
Roswellite
Subkick
Pascals (Pa)
49. Forward facing bipolar mics spaced 20cm apart.
OSHA Exposure Table
Coverage Angle
Faulkner
Max SPL
50. Magnetic field opposite to that which presently exists; Do this on the bottom mic when miking a snare with two mics.
DIN
Reverse Polarity
Pistonphone
Body