l
- Lambert shading
- LAN
- landscape
- Largo
- laser
- latency
- Leader tape
- Leading tone
- Lead sheet
- Ledger lines
- Legato
- letterbox
- level
- leveler
- LFO
- License
- limiter
- Linear harmony
- linear PCM
- linear phase response
- line level
- Liner notes
- Linkwitz-Riley crossover
- Live electronics
- load
- local area network
- logic
- logical
- logical area network
- longitudinal time code
- loop
- Loop
- loss
- lossy
- loudness
- low-frequency oscillator
- low-pass filter
- LTC
- luma
- lumen