Commercial AV Glossary
This AV glossary defines the commercial audio visual terms you will meet in a conference room proposal, a Teams Rooms deployment or an AV construction document — defined plainly, with sources.
31 terms · Written by Gerson Carrillo · Editorial policy
A
- Acoustic Echo Cancellation (AEC)Processing that stops remote participants hearing their own voice echo back from the room.
- Assistive Listening System (ALS)A system that delivers amplified audio directly to people with hearing loss.
- AV-over-IPSending audio and video across a standard Ethernet network instead of dedicated AV cabling.
B
C
- Ceiling Microphone ArrayA ceiling-mounted array that picks up talkers across a table without tabletop mics.
- CodecThe device or software that compresses and decompresses audio and video for a call.
- CommissioningVerifying an installed AV system performs as designed before handover.
- Control SystemThe processor and touch panel that operate a room's AV equipment as one system.
D
- DanteA widely used protocol for sending multichannel digital audio over IP networks.
- Digital Signal Processor (DSP)The audio "brain" that mixes, equalizes and cleans up conference audio.
- Direct-View LEDA display built from LED modules that emit the image directly — no bezels.
- DISCASThe AVIXA standard for sizing displays based on viewer distance and content.
H
P
V
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