THX
Audio quality standard
THX is a trademark for audio and video quality standards developed by Lucasfilm, known for its distinctive deep bass test tone in movie theaters: The THX logo appeared before the film started.
Equipment and venues can be THX-certified to meet specific playback standards. (Lowercase thx is informal shorthand for thanks.)
Lucasfilm
speakers · bass · subwoofer · amplifier · acoustics · soundtrack · movies · certification · quality · logo
- Film Technologycamera, projector, film reel, film stock, cinematograph
- home theaterprojector, home cinema, screen, speakers, soundbar
- movie theaterscineplex, AMC, screens, auditoriums, lobby
- audio systemssurround sound, spatial audio, stereo, multichannel, 5.1
- Film AcronymsCGI, VFX, SFX, IMAX, MCU
- Film Soundsound design, sound editing, sound mixing, Foley, ADR
audio/visual quality certification
THXuncertified
Lacking official approval
non-certified · consumer-grade · unverified · Dolby · Dolby Atmos
audio fidelity level
THXlo-fi
Imperfect audio quality, informally
low fidelity · muffled · mono · AM radio