Sound Science
Speakers
Mics
The Show Must Go On(Stage)
Can I Hear It?
(YES YOU CAN)
(YES YOU CAN)
A Beautiful, Flowing Signal
100
This is the speed of sound in ft/sec under normalized temperature and humidity conditions.
What is 1130 ft/sec?
100
This device boosts a signal before it is re-converted into acoustic energy by a speaker.
What is an amplifier?
100
Microphones are these components, which converts acoustic energy into electrical energy.
What is an input transducer?
100
This set of instruments conventionally comes first in an input list.
What are the drums?
100
Frequency is measured in Hertz, and this range of frequency is the range of human hearing capabilities.
What is 20Hz to 20kHz?
100
This is the process of setting the multiple levels of gain in a signal chain, from the preamplifier to the EQ to all else.
What is gain staging?
200
This objective measurement references the number of waves that occur over a period of time. Subjectively, humans refer to it as "pitch."
What is frequency?
200
This type of speaker requires an AC power source and internal amplifier to provide it power.
What is an active speaker?
200
This kind of microphone has virtually no SPL limit and is very durable.
What is a dynamic microphone?
200
The upstage subsnake would cover these instruments.
What are the drums and backline/amps?
200
This measurement tool gives more energy to low frequencies than high frequencies, and mimics the frequency response of the human ear.
What is pink noise?
200
This point usually comes before the EQ, but after the gain, and is used to place EQ/dynamic effects on one singular input channel.
What is a channel insert?
300
This switch on a console will cause this effect on an input channel.
What is polarity reverse/flip?
300
This type of speaker cabinet produces the lowest frequencies and typically contains only one type of driver.
What is a subwoofer?
300
Cardioid, Supercardioid, and Hypercardioid polar patterns all fall under this category of direction.
What is unidirectional?
300
Running monitors from FOH requires your aux sends to be in this mode so that your main mix doesn't affect your monitor mix.
What is pre-fader mode?
300
When two matching frequencies are played 180º out of phase, this occurs.
What is cancellation?
300
In order to apply a time-based effect to multiple channels at once, you must first send the signals to the unit, and then create this on input channels to mix the wet signal to the FOH mix.
What are aux returns/FX returns?
400
This component tells different groups of frequencies to go to their specific drivers.
What is a crossover?
400
Your system is running in this configuration if you main L and R are sending signal to all of the speaker cabinets in your FOH system.
What is full-range?
400
This type of microphone accepts sound at 0º and 180º, but rejects it at 90º and 270º
What is a bidirectional microphone?
400
This is the process of intentionally causing feedback by increasing gain and using a microphone to set up your monitor mixes.
What is ringing out?
400
This measurement was recorded as the frequency response of human hearing, and tells us that humans need more sound intensity to perceive lows and highs at more-equal levels to mids.
What is the Fletcher-Munson curve?
400
You have your subs on aux, and you're sending the kick drum and the bass to subs. You turn down your input faders for kick and bass, but you still hear the sub, because your sends are in this mode.
What is pre-fader?
500
Decibels measure many different units that all pertain to the same thing, but this Decibel unit is the measurement of voltage in reference to impedance.
What is dBu?
500
A fader mode for your subs-on-aux configured system, so that your input faders adjust your sub sends.
What is post-fader mode?
500
The supercardioid polar pattern is achieved by two acceptance points, which interact with this kind of transducer to create cancellation to tighten the polar pattern.
What is a pressure gradient transducer?
500
In order to use time-based effects, the input aux sends must be set to this mode so that you don't hear delay when you turn the fader down!
What is post-fader mode?
500
This is the point at which woofers take over for sub frequencies, and tops take over for low, mid, and high frequencies.
What is the crossover?
500
In order to hear the mix you've created on your input faders out of your FOH speakers, you must send them to LR by using this section.
What is master bus assign?