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






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






3. 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.






4. Dynamic; Cardioid; End Address; Manufactured by Shure; Considered the industry standard for live vocal performance microphones; One of the best- selling microphones in the world.






5. Sounds that arrive at the 0






6. 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.






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






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






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






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






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






12. Raises the body of the microphone increasing height.






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






14. EMI employee that was the innovator of many coincident pairing mic techniques; Mid/Side & Blumlein techniques are associated with him.






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






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






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






18. More compelling sound - giving both depth and perspective.






19. Digital device used to Fourier Forms; Used to measure the specific number of sine waves in a specific frequency in a specific setting.






20. 4800 ft/sec






21. The combination of the ribbon and magnet in a ribbon microphone.






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






23. 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






24. Term coined by Sir Charles Wheatstone derived from the Greek words 'micro' (small) & 'phon' (sound).






25. The tuning machines of a guitar; Part of the tuning key that strings are threaded through and twisted.






26. The first dynamic microphone with changeable polar patterns.






27. French broadcasting stereo mic technique; An X-Y type with the mics 17cm apart and at a 110






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






29. 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.






30. Responds to air pressure variations outside of the capsule; Not selective of direction; Natural polar pattern is omnidirectional.






31. 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.






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






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






34. Big + & - (More front with less opposite rear)






35. 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.






36. Shure's newer ribbon studio mics; KSM 353 & 313 (Roswellite); KSM 44 - 32 - & 27.






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






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






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






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






41. To capture two perspectives on the same sound.






42. Microphone with 4 large diaphragm condenser capsules; 3 bidirectional and 1 omni; Can be combined to make any polar pattern.






43. Condenser; Multiple; Side Address; 48V Required; Manufactured by AKG; Dual Diaphragm; Nine selectable pickup patterns; Peak Hold LED; The reference microphone for almost all comparative microphone tests.






44. 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.






45. 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.






46. French physicist who pioneered piezoelectricity.






47. A stereo miking technique similar to coincident pair - where the mics are set up with some distance between them; Distance and angle of microphones may differ; Creates a more defined stereo image; Produces very sharp images; Provides more 'air'.






48. 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.






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






50. A 3- mic array using omni mics with left - right and center placement; Center is placed about 5 ft. closer to the source to eliminate 'holes' in the middle and the center levels are reduced for an even sound; Forms a triangle.