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. More compelling sound - giving both depth and perspective.






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






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






4. 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.






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






6. 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.






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






8. 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.






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






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






11. 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.






12. 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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13. 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.






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






15. 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.






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






17. Determined by: Ribbon Thickness (about 3 to 6 microns); Corrugations/Inch; Tension of the Ribbon.






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






19. The first AKG dynamic microphone.






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






21. Known as 'The Bottle' this was the first mass - produced condenser mic.






22. Device or transducer used for converting sound waves or acoustical energy into electrical energy






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






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






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






26. Mics placed in front of an instrument or ensemble (in a left/right fashion) to obtain an overall stereo image; Sound more open and natural; Weaker center image than X/Y; Great for creating background sounds that will blend in with foreground sounds.






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






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






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






30. 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.






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






32. Quartz; Barium Titaniate - Tourmaline; Rochelle Salt - and even cane sugar.






33. Adds two outer right and left rear facing mics to a Decca tree for surround sound depth.






34. 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.






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






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






37. 4800 ft/sec






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






39. Occupying the same space and time.






40. 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.






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






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






43. Changes in air pressure from the front or the back can cause polarity cancellation; Sides have good rejection; Natural polar pattern is bidirectional.






44. 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.






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






46. The attachment that holds a microphone in place on the mic stand; Comes in various shapes - sizes - and applications.






47. 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.






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






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






50. Modern drummer who has created a large kit and innovated several ways of capturing the sound from his massive kit.