Audio Masters
This cable is most commonly used for professional microphones.
XLR cable
This cable type is commonly used for high-definition video connections.
HDMI
Device that switches between multiple video sources.
video switcher
First thing to check when equipment won’t power on.
power connection
Director call to play a pre-recorded video clip during a live show.
“Roll it”
This device controls levels and mixes multiple audio inputs.
mixer
A shot framed from the waist up is called this.
medium shot
Converts HDMI signal to SDI or vice versa.
converter
No audio from speakers—this should be checked first on the mixer.
mute button or fader level
Director call used to have production crew ready for 1 minute showtime.
"stand by"
Unwanted high-pitched noise caused by mic/speaker loop.
feedback
Camera movement where the camera rotates horizontally.
pan
This type of cable is preferred for long-distance video runs.
SDI
Video not showing on projector—this is often the issue.
incorrect input/source
Director cue for audio technician to constantly adjust mic levels.
"ride the audio"
This microphone type clips onto clothing for presentations.
lavalier mic
This PTZ feature allows you to store and instantly recall specific camera angles during a live event.
camera presets
This diagram shows how audio/video signals move through a system.
signal flow
Intermittent signal drop during a show is often caused by this.
loose cable/connection
Director call to instruct the switcher operator to put a source live.
“Take”
This audio pattern picks up sound mainly from the front and rejects the rear.
cardioid
This camera adjustment controls the amount of light entering the lens and is often remotely adjusted during live events to maintain proper exposure.
iris
Device used to send one signal to multiple outputs.
distribution amplifier (DA)
When a presenter’s wireless mic suddenly cuts out, this is the fastest backup solution to restore audio on stage.
backup microphone
Director call used to instruct the audio technician to gradually lower the music volume.
"fade out"