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Popularity (by total correct streak): 81
Popularity (by number of users): 1
| Name some unique benefits ear monitor systems provide. | no feedback, more mobility, better sightlines, safer on ears, no stage noise | |
| A basic wireless in ear monitor system consists of. | Console, multi band peak processor/limiter, transmitter, receiver, ear molds | |
| How does an ambient microphone fed into a musicians in ear monitor mix help the artist? | helps them hear crowd response, helps with localization when using isolating molds, allows communication on stage | |
| What does the term loop unity gain refer to? | the point where a loudspeaker reinforcing a source and the sources level are equal at the capsule | |
| describe five ways we can improve gain before feedback. | use as few mics as possible, mic as close to the source as possible, take advantage of speaker and mic directionality, place speakers as close to the listener as practical, maximize the distance between mics and speakers | |
| In what four ways is EMI transmitted into or introduced into an audio system? | magnetic field coupling,electric field coupling, electromagnetic radiation, common impedance coupling | |
| What are some ways we can reduce levels of emi? | figure 8 cables, cross cables at 90 degrees, shields, fix pin one problem, shields, seperation | |
| Explain how a balanced differential input is able to reduce EMI. | through common mode rejection | |
| What is the most common system used for technical grounding in an audio system? | Isolated star grouding | |
| How do you fix the pin one problem? | XLR input/output pin 1 tied directly to the chassis ground | |
| What is the maximum recommended length of an unbalanced cable run? | 10 feet | |
| What is damping factor? | a numerical indication of how well an amplifier can control a loudspeakers cone motion | |
| Name some job duties of a tour manager. | In charge of tour, over see travel planning and lodging, take care of band and entourage, oversee merchandise, enforce contract | |
| Name some job duties of a production manager. | in charge of tour personnel, equipment transportation, setup production office, advance, dressing rooms | |
| What is the difference between single mode and multi mode fiber? | Multi-mode has a lower bandwidth and single mode has unlimited bandwidth | |
| Name four advantages of using fiber optics over copper cables. | low attenuation, high bandwidth, immune to EMI, | |
| Name two methods used to splice fiber cables. | fusion(melting), mechanical(gluing) | |
| What does the parameter Fs signify? | resonant frequency of the driver, peak impedance of the driver | |
| What is Vas? | amount of air in cubic feet having the same compliance as the drivers suspension | |
| Name and describe 5 basic enclosure types. | dipole, vented, combo, sealed, horn | |
| Why are volume displacement values important? | displacement affects enclosure volume, volume affects systems resonant frequency | |
| What does the parameter Xmax signify? | maximum amount of drivers cone excursion measured in millimeters | |
| What is a face? | a collection of vertices that make up a plan that have acoustic properties | |
| Why is a transformer required at each speaker in a distributed system? | step down voltage | |
| What three voltages are commonly used for constant voltage systems? | 100 Volts (europe), 70.7 Volts, 25 Volts | |
| What is the industry rule of thumb used when figuring required amplifier output wattage for a constant voltage system? | Total TAP wattage+20%= amp wattage/ TAP wattage * 1.2= amp wattage | |
| What are the two field components that make up radio wave? | Electric field variation, magnetic field variation | |
| Name two types of modulation? | Frequency Modulation, amplitude modulation | |
| What two types of audio processing are used in transmitting and receiving? | pre/post emphasis eq/ companding | |
| What does the term true diversity mean? | sampling the ratio field from two or more locations and having the ability to select or combine the resulting signal | |
| What is the minimum antenna size for transmitting and receiving? | 1/4 the wavelength you are trying to transmit | |
| Name the two types of antenna distribution. | passive, active | |
| Name and explain some methods used to test a driver. | 9 volt battery(cone drivers only), sine wave sweep, digital multi meter | |
| Name three benefits of using ferrofluid. | heat dissipation, coil centering, extra mechanical damping | |
| How many volts does 0dbu equal? | .775 volts | |
| What three methods are used to determine clip points in a system? | piezo, onboard indicators, oscope | |
| Name the three common network topologies | Ring, star, bus | |
| How many channels of digital audio can a system using cobranet carry on a 100 Base T network? | 64 | |
| What is the job of a conductor in a cobranet system? | keep time | |
| At what point should front fill speakers overlap? | at the first row of listeners. | |
| Why are delay fills used indoors? | to increase the direct to reverberant | |
| Name some important considerations when using delay towers? | maintain the same axis as the mains, many small zones are more effective that one big one, don't crank them make them transparent to the mains(unless a new visual reference is established), pursue stereo at your own risk | |
| What is the difference between a directivity factor and a directivity index? | factor is beam width expressed as Q, index is the sound pressure level on axis due to confinement |
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