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Audio for Live Events
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XLR Cable
A type of electrical cable used to transmit balanced audio signals.
Subwoofer
A loudspeaker designed to reproduce low-pitched audio frequencies.
Equalizer
Audio processing device that allows for the adjustment of frequency bands.
Snake Cable
A heavy-duty cable bundled with multiple individual channels, used to connect the stage to the mixing console.
SPL Meter
Sound Pressure Level Meter, a device used to accurately measure the loudness of sound in decibels.
Backline
Equipment provided at a performance venue for bands or performers, generally including amplifiers and drums.
Aux Send
An auxiliary output path from a mixing console, often used for monitoring or effects processing paths.
Talkback Mic
A microphone used by the sound engineer to communicate with the performers onstage or other crew members.
Amplifier
An electronic device that increases the power of a signal to drive loudspeakers.
PA System
A public address system used to amplify and distribute sound to a large area or audience.
Rack Unit
Modular equipment housing that is used to contain audio processing equipment and other rack-mountable gear.
Reverb
The persistence of sound as it reflects off surfaces in a space, giving the impression of an acoustic environment.
Crossover
An electronic device that divides an audio signal into multiple frequency bands, each directed to specific loudspeakers like tweeters or woofers.
Dynamic Range
The ratio between the smallest and largest possible values of a changeable quantity, such as in sound levels.
Wireless Microphone System
A mic system that transmits audio signals over the air rather than through microphone cables.
Digital Audio Workstation (DAW)
A software platform used for recording, editing, mixing, and producing audio files.
Limbo
A processor that limits the maximum level of the signal passing through it, to prevent clipping and distortion.
In-Ear Monitor (IEM)
A device that allows performers to hear the mix of audio sources in a discrete manner using earpieces.
Stage Monitor
Speaker placed on stage facing the performers, allowing them to hear themselves or the band.
Mixing Console
A device for combining, routing, and changing the level, tone, and dynamics of audio signals.
Fader
A control on a mixing console or audio software that allows for the adjustment of volume levels.
Microphone
A device that converts sound waves into electrical signals for transmission or recording.
DI Box
Direct Injection box, a device used to connect instruments directly to the audio system while balancing and matching impedance.
Gain Structure
The setting levels of audio signals in sound systems to achieve a good noise-to-signal ratio without distortion.
Feedback
A looped signal that is often heard as a high-pitched squeal during sound reinforcement.
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