Quiz 2
Popularity (by total correct streak): 85
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 | |
| Give some application examples or an in ear monitor system. | Theatre, broadcast, live performance, studio monitoring | |
| A basic wireless in ear monitor system consists of? | Console, multiband peak limiter/processor, receiver, ear molds | |
| Why is it important to drive an in ear monitor system transmitter properly? | if the input is too low, you will have to operate the receiver volume at too high a level leading to excessive noise, if the input is to high, you will cause over modulation distortion. there is also danger of bleed in the adjacent channels. | |
| Why is a peak limiter neccesary at the transmitter input? | to prevent hearing damage due to a level spike or feedback loop, enhance the mix | |
| What band positions typically use a hardwired in ear mix? | stationary performers | |
| What is the first thing you need to do to obtain custom ear molds? | go to a hearing center or audiologist and have impressions taken of your ears | |
| 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 | |
| Explain why a monitor wedge would be used in combination with an in ear mix? | supplement low end | |
| What is multi-band limiting? | multi-band limiters allow seperate limiter control over multiple frequency bands | |
| Name some techniques used to enhance the low end of an in ear mix. | Bass Shaker, Side Fill Subs | |
| What is another name for a constant voltage system? | High Impedance, Disrtibuted, 70 volt | |
| Where are constant voltage audio systems commonly used? | Commercial establishments | |
| Why is a transformer required at each speaker in a distributed system? | Step down the voltage | |
| What three voltages are commonly used for constant voltage systems? | 100 Volts (europe), 70.7 Volts, 25 Volts | |
| How are speakers rated in distributed systems? | dBSPL per wattage tap | |
| How many speakers can be connected to an amplifier in a constant voltage system? | as many or as few as u wish as long as you do not exceed amplifier capacity also keep an eye on load impedance | |
| Besides the power used by the speaker, what are the two other factors to consider when concerning power loss? | Transformer Insertion Loss (TIL) loss due to cable | |
| What is the industry rule of thumb used when figuring required amplifier output wattage for a constant voltage system? | total TAP wattage plus 20%=amp wattage OR total TAP wattage* 1.2=amp wattage | |
| What is dynamic range? | Peak Level-Noise Floor | |
| What is thermal noise? | the result of atoms bumping into each other, electronic noise | |
| Why are we forced to deal with a systems gain structure? | there is no standard noise floor, there is no standard peak input/output level | |
| What is the benefit of graphing out a systems gain structure? | helps in making design and purchase decisions. | |
| How many volts does 0dBu equal? | .775 volts | |
| What devices are used to adjust attenuation when setting a systems gain structure? | external pads, onboard input/output controls provided they are | |
| How must we approach aligning the crossover's outputs with each of it's associated amplifier inputs? | treat them as individual gain structure branches, start by adjusting the largest portion | |
| What is the purpose of a system limiter? | act as an early warning device that allows you to take measures to protect the system. | |
| What ratio setting is best for a system limiter? | 8:1 or greater | |
| What three methods are used to determine clip points in a system? | piezo, onboard indicators, oscope | |
| When using an Oscope to find clip points, how do you connect the positive and negative leads to the device under test? | tie low to ground | |
| Before physically setting gain structure, why do you first run signal through the system? | check integrity of the system | |
| Why would we zero out an EQ before attempting to set gain structure? | any cuts or boosts will affect the EQ output during calibration | |
| In a typical audio circuit it is beneficial to have the load impedance______ times the source impedance to insure efficient ______ transfer from device to device. | 10, voltage | |
| What is amplifier input sensitivity? | amount of voltage required at an amplifiers input or the amplifier to produce full rated output | |
| What is crest factor? | distance between average and peak signal. |
Quisition is a browser-based flashcard system that repeats old cards and introduces new ones at optimal time intervals. You can create your own card packs or use those developed by others.
