Test your basic knowledge |

Microphones Theory

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. Condenser; Cardioid; End Address; Manufactured by Shure; Small condenser design that is great for instrument recording.






2. Pair of cardioids facing to the front and rear - plus a sideways - facing figure 8; Mid- sides pair plus another rear- facing cardioid which is combined with the same Figure 8 mic for the surrounds.






3. 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.






4. Coincident pairing of two bidirectional mics that make a pattern of crossing Figure 8's.






5. Used in adverse conditions to protect from elements like sand - or dust.






6. German broadcasting stereo mic technique; An X-Y type with the mics 20cm apart and at a 90






7. Small coil of wire wrapped around the plastic or aluminum diaphragm of a dynamic microphone.






8. French physicist who pioneered piezoelectricity.






9. + & + (Front & rear in equal positive amounts)






10. One of the world's greatest condenser microphones prized for the CK12 capsule.






11. Most sensitive to sounds arriving from the front while rejecting sounds from rear; Shaped like a heart; Rejects most signals from 180






12. Device used to calibrate sound pressure measurement devices; Emits a single 1 kHz frequency over a sustained period of time.






13. 12V DC; 24V DC; 48V DC






14. Cable wrapping method that reduces interference and makes it easier to unravel the cable.






15. 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.






16. To break down or disassemble any portion of a set or stage set- up.






17. Best signal- to- noise ratio; Minimal phase cancellation; Quality representation of what is being recorded; Attempt to ignore unwanted external noise.






18. Used for stereo miking to ensure correct balance and imaging.






19. 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.






20. Often look like large diaphragm studio mics; Talk or sing into the side of the microphone.






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.






22. 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.






23. The first dynamic microphone with changeable polar patterns.






24. - Omnidirectional: 1 - Cardioid: 1.7 - Supercardioid: 1.9 - Hypercardioid: 2 - Bidirectional: 1.7






25. Delicate and require extreme care; NO PHANTOM POWER; Becoming more popular than ever because of highly efficient magnets - lower manufacturing costs - and great fidelity.






26. Tough & rugged microphone that contains an element consisting of a dome- shaped diaphragm and a moving 'voice coil'; Operates on principles of magnetic induction.






27. Small Diaphragm Electret condensers; Extremely flat frequency response; Omnidirectional pattern.






28. Electro- acoustic device attached to a transducer that vibrates to receive or produce sound waves which put the device into motion.






29. Reduces the power of a signal used when the trim itself cannot prevent overload in the mic line level signal.






30. Consumers can listen to live broadcasts over telephone lines; Individual one- way experience that required a subscription service to listen to performances.






31. The measuring device used for loudspeaker room response testing.






32. Shows the max sound pressure level possible with a certain amount of distortion; Measured in dB (decibels).






33. Will yield a 6dB increase in output - but will cause a loss of high frequency response.






34. Sub- frequency (below 100Hz) capture device designed for use with kick drums and floor toms as an alternative or supplement to a traditional microphone.






35. Dynamic; Super-Cardioid; End Address; Humbucking Coil; Brilliance Switch; Manufactured by Sennheiser; Acknowledged as the most accurate and versatile dynamic mic available.






36. Solid state version of the U67.






37. When using two microphones reverse the polarity of the bottom mic.






38. Three or more microphones working together to capture a stereo or surround image of the sound source.






39. Magnetic field opposite to that which presently exists; Do this on the bottom mic when miking a snare with two mics.






40. Modeled to mimic a human head for extremely good spatialization; Shaped like a human head.






41. The graphic representation plot of the sensitivity of a microphone from any direction over a 360






42. 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






43. 2 - 4 ft. from player; Placed below the line of sight of the bell - rotated at about 30 degrees off axis - and tilted upward.






44. 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.






45. Bell Labs scientist that was an innovator of many spaced pair and arrayed miking techniques.






46. 4800 ft/sec






47. The arm of the mic stand; Includes the angle adjust & telescopic adjust.






48. Mid-Section of the mic stand; Includes the clutch.






49. Pair of omni mic separated by a circular absorptive baffle.






50. Carbon; Ceramic/Crystal; Magnetic/Dynamic; Ribbon; Condenser