Glossary: Laser | Sweetwater.com

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Laser: Acronym for Light Amplification by Stimulated Emission of Radiation. For most of us, a laser is a device that produces a very focused beam of light (or electromagnetic energy), usually of a very narrow bandwidth in terms of wavelength. In very simple terms it means very focused and directional energy. A laser is a nearly coherent light source, meaning all the energy emitted is completely in phase, of the same frequency (color), and polarization. It projects in a narrow straight line, as opposed to radiating in more of an omnidirectional way like a standard light bulb. Thus nearly all of the energy present can be focused on a single point where the beam stops. This property allows lasers to be used in many industrial and medical applications. Of those, the ones we are interested in is use writing (burning) and reading optical media such as CDR, CD-RW, and DVD. This is accomplished by burning or reflecting the beam off of previously burned transitions from pits to land in optical media.

Lace Sensor	Lacquer	Lag Processor
Lament	Laminate/Laminated	LAN
Land	Lapis Lazuli	Lap Piano
Lap Steel	Lap Steel Guitar	Large Diaphragm
Larghissimo	Larghissimo	Largo
Laser	Latency	Launch
Lavalier	Layback	Layback recorder
Layer/Layering	Layoff	Layover/Layup
LBR	LCD	Leader Tape
Leading Note	Lead In, Lead Out	Lead Sheet
LED	LEDE - Live End, Dead End	Ledger Line
Legato	Lentissimo	Lento
Leo Fender	Leon Theremin	Leslie
Les Paul	Leveler	Lexan Overlay
LFE	LFO	Low Frequency Oscillator (LFO)
Librarian	Librarian	Libretto
Lick	Lied	Light Pipe
Limiter	Line Amp	Linear
Linear-Phase	Linear Arithmetic Synthesis	Linear Interpolation
Linearity	Line Array	Line Input
Line Interactive UPS	Line Level	Linkwitz-Riley
Linux	Lip-sync	Lipstick Pickup
Lithophone	Load	Load Factor
Lobar Polar Pattern	Lobe	Local Control
Local Control	Localization	LocatePoint
Locking Tuner	Locking Vibrato	Lock Up
Log / Logging	Log Drum	Longhorn Guitar
Long Throw	Look Ahead	Loop
Loopback	Loop Recording	Lossless Audio Compression
Loudness	Loudspeaker	Low Cut Filter
Low Interval Limit	Lowland Pipe	Low Level Format
Low Note Priority	Low Pass Filter	Low Pass Filter
Lowpass Filter	LP	LPGL
LPT	LSB	LTB
LTC	Luthier/Luthierie	LVD