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L/R Stereo
Layback
Laydown
Layoff
LCRS Multi-channel Audio
Leader
Left Total / Right Total...
Legacy System
LEQ
Level
LFE
LFOP
Library Wind
Limiting
Linear Tape-open
Lip Sync
Lo/Ro
Longitudinal Time Code
Looping
Loudness
Low End
Low-pass Filter
LP
Lt/Rt
LTC
LTO

LFE

From Chace Audio

LFE is an acronym for Low Frequency Effect, and it refers to an audio channel that contains only low frequency information (less than 200Hz) in a multi-channel configuration. This channel is also sometimes referred to as the Sub (Subwoofer) or boom channel. The LFE channel is referred to as .1 in a 5.1 or 7.1 configuration, as the audio information contained in that channel is not full frequency.