Understand THX: not a codec, but a quality standard for playback systems.
Audio & video standards

What is

THX
Explained

THX is often confused with codecs like Dolby or DTS, but it is something completely different: a certification and quality standard.

TL;DR: THX does not store or compress audio. It ensures that audio and video are reproduced accurately on certified hardware.
Certification • Playback • Quality

TL;DR

THX: quality standard

Dolby/DTS: codecs

Purpose: accurate playback

What THX actually does

Certification

THX certifies speakers, AV receivers, TVs, and even cinema systems to meet strict performance standards.

Consistency

The goal is to ensure that what you hear at home is as close as possible to what was heard in the studio.

Processing

THX may include audio processing features like loudness management, crossover tuning, and spatial adjustments.

THX vs Dolby vs DTS

TypeTHXDolby / DTS
CategoryCertification / standardCodec / format
PurposeEnsure playback qualityEncode and deliver audio
Where it appliesSpeakers, TVs, receivers, cinemasMedia files, discs, streams