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






2. - Omnidirectional: 100% - Cardioid: 33% - Supercardioid: 27% - Hypercardioid: 25% - Bidirectional: 33%






3. Occupying the same space and time.






4. Keep in proper case; Never disassemble shockmounts






5. Forward facing bipolar mics spaced 20cm apart.






6. When using multiple microphones - the distance between microphones should be at least 3 times the distance from each microphone to its intended sound source.






7. Sounds that arrive at the 0






8. 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.






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






10. Polar pattern produced when you add a little bit of bidirectional to the omni pattern.






11. Cable wrapping method that keeps every coil on top of the next; May cause interference and tiny curls or tangles.






12. + (only); (Front capsule alone)






13. 2 - 4 ft. from player; Placed below the line of sight of the bell - rotated at about 30 degrees off axis - and tilted upward.






14. To oppose with equal weight or force as in the length of the boom arm versus the weight of the microphone.






15. Mics in which sound waves vibrate a piezoelectric crystal that generates a varying voltage.






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






17. Demonstrated the first stereophonic transmissions via the Theatrophone in 1881.






18. Bioacoustic Research; Documentary Journalism; Radio; Film/TV Production; Audio Post Production.






19. 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.






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






21. Early example of switchable polar patterns; Had both a dynamic and a ribbon capsule inside of it which when combined produced other polar patterns.






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






23. Angle of maximum signal rejection in a microphone polar pattern.






24. The first phantom powered condenser microphone designed for use by Georg Neumann for Norwegian State Television.






25. Omnidirectional: N/ - Cardioid: 180






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






27. The first microphone sold by Shure; Military awarded Shure a contract to build microphones in WWII.






28. The part of the guitar you turn to tune the strings in order to get the right sound out of the guitar when one plays.






29. Captures sounds arriving 90






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






31. Used to make sure you have accurate angles & capsule spacing when miking in stereo.






32. An instrument for detecting sound transmitted through water commonly manufactured using ceramic piezoelectric material.






33. French physicist who pioneered piezoelectricity.






34. Sensitive in a narrower pattern in the front than a cardioid and has a prominent/pronounced lobe at rear; Rejects most signals from 110






35. Founded AKG at the end of WWII in Austria.






36. Tube with ports down the side with the mic capsule at the bottom; Sounds entering the tube from on - axis interact inside the tube with the sounds coming in through the side ports - an interfere with each other in such a way as to partially cancel of






37. 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.






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






39. The first cardioid pattern dynamic microphone.






40. Tube manufactured for the new version of the AKG C12 (called the C12-A); Powered by Norelco.






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






42. 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.






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






44. Often look like handheld vocal mics; Talk or sing into the end of the microphone.






45. Shure's ribbon microphone that utilizes Roswellite to prevent ribbon damage.






46. 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.






47. Allows all high frequencies to pass; Blocks the lower frequencies from being processed.






48. The lowest - and usually most intense - frequency of a complex sound; Most often perceived as the sound's basic pitch.






49. 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






50. Developed the condenser microphone in 1916 at Bell Labs.