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Dolby

Dolby Laboratories, Inc. (often shortened to Dolby Labs and known simply as Dolby) is a British-American technology corporation specializing in audio noise reduction, audio encoding/compression, spatial audio, and HDR imaging. Dolby licenses its technologies to consumer electronics manufacturers.[4]

For other uses, see Dolby (disambiguation).

Company type

Public

May 18, 1965 (1965-05-18) in London, England

Ray Dolby

Civic Center, San Francisco, California
,
U.S.

30+ (2014)

Worldwide

see Technologies

Dolby Cinema

Decrease US$1.25 billion (2022)

Decrease US$207 million (2022)

Decrease US$184 million (2022)

Decrease US$2.69 billion (2022)

Decrease US$2.25 billion (2022)

2,336 (2022)

dolby.com

: professional noise reduction systems for tapes and analog cassettes.

Dolby A

/B/C/S: consumer noise reduction systems for tapes and analog cassettes.

Dolby NR

(Spectral Recording): professional four-channel noise reduction system in use since 1986, which improves the dynamic range of analog recordings and transmissions by as much as 25 dB. Dolby SR is utilized by recording and post-production engineers, broadcasters, and other audio professionals. It is also the benchmark in analog film sound, being included today on nearly all 35 mm film prints. On films with digital soundtracks, the SR track is used in cinemas not equipped for digital playback, and it serves as a backup in case of problems with the digital track.

Dolby SR

: noise reduction system for FM broadcast radio. Dolby FM was tried by a few radio stations starting with WFMT in 1971. It used Dolby B, combined with 25 microsecond pre-emphasis. A small number of models of tuners and receivers were offered with the necessary decoder built in. In addition, a few cassette deck models appeared that allowed the deck's internal Dolby B decoder to be put in the line level pass-through path, permitting its use with Dolby FM broadcasts. The system was not successful and was on the decline by 1974.

Dolby FM

Dolby HX Pro: single-ended system used on high-end tape recorders to increase headroom. The recording is lowered as the high-frequency component of the signal being recorded increases, and vice versa. It does nothing to the actual audio that is being recorded, and it does not require a special decoder. Any HX Pro recorded tape will have, in theory, better sound on any deck.

bias

Dolby Advanced Audio: Dolby , locking preferred volume level, optimizes audio performance for specific PC models and lets turning up the volume to the built-in speakers without distorting the sound.[19]

surround sound

(analog noise reduction competitor)

CX

(analog noise reduction competitor)

dbx

(analog noise reduction competitor)

High Com

(digital soundspace competitor)

DTS

(lossless coding for DVD-Audio)

Meridian Lossless Packing

(surround sound competitor)

SRS Labs

(digital soundspace competitor)

Beats Audio

(digital soundspace competitor)

Sony Dynamic Digital Sound

Dolby Theatre

THX

Official website

Google

grouped at OpenCorporates

Dolby companies