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. 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.






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






3. Filters only the bandwidth of frequencies that are supposed to (or allowed) to pass through; High and Low Pass are examples.






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






5. 12V DC; 24V DC; 48V DC






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






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






8. Part of a mic stand that the mic stands on.






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






10. Allow sound to reach the rear of the capsule/diaphragm - to create cardioid - supercardioid - and hypercardioid patterns In single capsule pressure gradient microphones.






11. An extremely strong acoustic nano- film designed to replace the foil ribbon in ribbon microphones.






12. Configured to simulate the spacing and directivity of human hearing; Box shape with two 'ears' on each side.






13. Big + & + (More front with less positive rear)






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






15. The method by which microphones are classified.






16. 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.






17. Utilized primarily on condenser and ribbon mics to isolate it from vibrations that might otherwise be transmitted to the microphone through the mic stand.






18. + & - (Front & rear in opposite equal amounts)






19. Coincident pairing angled between 90






20. Sounds that arrive at the 0






21. 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.






22. 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.






23. Omnidirectional: 360






24. Tube microphone capable of SPL's over 140dB.






25. First microphone invented by Georg Neumann






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






27. 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






28. The world's first single element cardioid mics.






29. Sounds that may be broadcast over the radio or internet.






30. Moving a conductor (a coil of wire) through a magnetic field will cause a voltage to be induced across the conductor.

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31. Another name for condenser microphone.






32. A gradual - continuous decrease in low frequency response.






33. Device used to measure sound loudness; Often used to measure and balance the loudness of each speaker in a home - studio - or live venue or theater system.






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






35. 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.






36. A flat or roughly flat strip on the neck of a stringed instrument against which the strings are pressed to shorten the vibrating length and produce notes of higher pitches.






37. Coincident pairing that is at 90






38. Mounts on a single stand to provide for adjustable spacing and angling between mics.






39. Used in production sound for multiple perspectives on the set; Used in Audio Post to record a number of mics into a recorder with minimal set- up & tear down.






40. Stereo configuration using a spaced pair 3-10 feet apart.






41. Dutch broadcasting stereo mic technique; An X-Y type with the mics 30cm apart and at a 90






42. Omnidirectional: 0 - Cardioid: 8 - Supercardioid: 12 dB - Hypercardioid: 6 dB - Bidirectional: 0






43. 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.






44. Condenser; Cardioid; Side Address; 48V Required; Manufactured by AudioTechnica; Ideal for project/home- studio applications; Low price; Remains the low cost performance standard in side- address condenser mics.






45. Aluminum Ribbon - Bi-Polar (Figure 8); Side Address; Manufactured by Shiny Box; Buttery mid- range improves digital recordings and smooths out modern treble; Best on drums - piano - overheads - and vocals where treble is focused.






46. To capture two perspectives on the same sound.






47. Sensitive in a slightly narrower pattern in the front than cardioid and has a small lobe at rear; Rejects most signals arriving from 125






48. Voltage applied to piezoelectric material will cause it to deform or change shape; NO PHANTOM POWER!






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






50. An electrical device characterized by its capacity to store an electric charge;