Term
| Within audio and video industries, the word monitor refers to what? |
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Definition
| A device that acts as a subjective professional standard or reference by which program material can be judged |
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Term
| What is one of the weakest links in the audio chain? |
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Definition
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Term
| Why are speakers the weakest link in an audio chain? |
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Definition
| Potential nonlinearities in speaker system's frequency response, interactions with a room's frequency response leads to peaks and dips that can affect a speaker's sonic character in ways that are difficult to predict |
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Term
| Speakers are one of the most subjective tools in a production studio. True or False? |
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Definition
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Term
| Reducing ________ _____ help reduce erratic frequency response characteristics within a room |
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Definition
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Term
| Reducing excessive ____ buildup in a room corners through the use of bass traps. |
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Definition
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Term
| Keeping the room/equipment layout ___________ throughout a room keeps the left/right and front/rear imaging consistent |
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Definition
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Term
| Using __________ and __________ surfaces help "shape" the sonic character of a room |
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Definition
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Term
| What is "tuning" or "equalizing" speakers? |
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Definition
| Adjusting the frequency response to match the room and produce a reasonably flat sound |
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Term
| What are the two ways a speaker system can be tuned? |
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Definition
Altering settings on the speaker
Equalizing monitor output lines |
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Term
| When speakers are placed in or near a corner or other loud boundary, what settings can be used to compensate for bass buildup? |
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Definition
| Basic EQ setting controls |
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Term
| How can you tune a large, passive monitor (farfield pair)? |
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Definition
| Place a 1/3 octave bandwidth graphic equalizer between each of the console's control-room monitor outputs and the power amplifier |
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Term
| How can the acoustic output be measured and adjusted? What instrument would you use? |
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Definition
Feed pink noise into each speaker.
-Spectrum Analyzer |
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Term
| What is a spectrum analyzer used for? |
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Definition
| Visually displays the speaker's frequency response as measured through a specially calibrated omnidirectional condenser microphone. |
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Term
| How do you use a spectrum analyzer? |
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Definition
| The mic is placed at the console's central listening position and the mic is placed at spots throughout the listening area. |
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Term
| Why is pink noise used when using a spectrum analyzer? |
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Definition
| It is random in nature and doesn't stimulate standing waves within a room. |
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Term
| How can a delay/reflection response of a speaker/room combination be accurately measured? |
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Definition
| TEF Time Delay Spectrometer (TDS) |
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Term
| What is another name for a patch point? |
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Definition
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Term
| In signal flow, where is the insert? |
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Definition
| Between EQ and (right before bus) Fader |
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Term
| You send signal through Channel Aux sends for _____ ______ inserts. |
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Definition
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Term
| What are some time-based inserts? |
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Definition
Reverb
Delay
-Chorus
-Phlange
-Phaser |
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Term
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Definition
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Term
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Definition
| Reverb time, amount of time for reverb to decay by 60 dB |
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Term
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Definition
| Makes your room sound bigger. |
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Term
| What are 5 common reverb room settings? |
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Definition
Concert Hall
Chamber
Room
Plate
Spring |
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Term
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Definition
| Varies frequency of delay time. |
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Term
| What is the depth of an oscillator? |
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Definition
| How much frequency delay time. |
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Term
| What is the rate of an oscillator? |
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Definition
| How often frequency delay time varies. |
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Term
| 1-5 ms delay time is AKA what? |
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Definition
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Term
| 15-30 ms delay time is AKA what? |
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Definition
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Term
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Definition
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Term
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Definition
| 2nd signal is not perceived unless 20ms delay or more is used |
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Term
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Definition
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Term
| A speaker uses the same basic principle (but opposite) as which type of microphone? |
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Definition
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Term
| What is resonant frequency? |
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Definition
| Point at which vibration automatically happens with no added energy |
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Term
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Definition
| Ability of loudspeaker to to vibrate (stiffness) |
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Term
| What is the excursion of a loudspeaker? |
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Definition
| The maximum width a cone can vibrate |
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Term
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Definition
| You should send 3x as much electrical power to a low frequency driver than a high-compression driver |
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Term
| Are high frequencies unidirectional or omnidirectional? |
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Definition
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Term
| Are low frequencies unidirectional or omnidirectional? |
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Definition
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Term
| A speakers ability to be unidirectional or omnidirectional is AKA what? |
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Definition
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Term
| What is a common crossover point for a 2-way system? |
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Definition
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Term
| How many crossover points do you have in a 4-way system? |
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Definition
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Term
| Why would a speaker have a vent or port? |
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Definition
| It allows energy to escape |
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Term
| Coupling gives how many deciBels increase? |
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Definition
| 6 in theory, 3 in practice |
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Term
| What is the resistance of a standard speaker? |
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Definition
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Term
| What is the formula for resistance of a series circuit? |
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Definition
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Term
| In a series ciruit, the total resistance equals what? |
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Definition
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Term
| What is the formula for total resistance in a parallel circuit? |
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Definition
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Term
| What happens to power output when resistance is cut in half? |
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Definition
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Term
| Why would you use a crossover network? |
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Definition
| To separate frequencies sent to speakers, as not to harm/break/blow them |
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Term
| A 2-channel amplifier produces a __-way system. |
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Definition
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Term
| ________ __________ increases speaker efficiency. |
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Definition
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Term
| What is it called when frequencies are spearated after amplification? |
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Definition
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Term
| Why would you use a passive crossover? |
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Definition
| Easy, Inexpensive (you only need a capacitator and a resistor) |
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Term
| What is it called when frequencies are separated before amplification? |
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Definition
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Term
| What cables connect amplifiers to speakers? |
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Definition
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Term
| Should you plug instrument cables to amplifier outputs? |
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Definition
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Term
| 1st order=_____dB/octave rolloff |
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Definition
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Term
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Definition
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Term
| What is another name for in-phase? |
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Definition
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Term
| What is a coaxial design in speakers? |
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Definition
| Highs are placed on top of lows (car speakers) |
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Term
| How would you fix a time shift? |
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Definition
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Term
| What is the velocity of sound? |
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Definition
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Term
| What is the inverse square law? |
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Definition
| When distance is doubled, dB's decrease by 6 |
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Term
| 2 speakers and producer should be at what type of triange? |
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Definition
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Term
| Where would a speaker have to be to produce whole-space coupling? |
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Definition
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Term
| Where would a speaker have to be to produce half space coupling? |
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Definition
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Term
| Where would a speaker have to be to produce quarter space coupling? |
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Definition
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Term
| Where would a speaker have to be to produce eighth space coupling? |
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Definition
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