We are a globally recognized innovator of sound, image, and voice technologies for cinemas, home theaters, PCs, mobile devices, and games.
Dolby Acquires Doremi
The Magic Inside Dolby
The Dolby Institute
The Dolby Theatre
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Dolby in the Cinema
Be captivated by your favorite movies in Dolby sound.
Explore Dolby Atmos
Find a Theatre
Peter Jackson on the Importance of Sound
Dolby at Home
Transform your living room into a sophisticated home theater with amazing sound and true-to-life video quality.
Speaker Setup Guide
Creating a Home Theater
Dolby on the Go
Stellar sound quality. All of your favorite content. Wherever life takes you.
Experience Dolby Atmos
Transformers in Dolby Atmos
Dolby at Work
Improve productivity by transforming the conference call into an in-person meeting experience with Dolby Voice and the Dolby Conference Phone.
Dolby Conference Phone
Partners and Professionals
Find Dolby solutions, services, and support that can help you create more engaging products, content, and entertainment experiences.
PC and Mobile
Dolby Pro Logic IIx expands stereo or 5.1-channel audio to 6.1- or 7.1-channel sound, and lets you customize audio playback with listening modes designed specifically for movies, music, and games.
By expanding your listening environment with 6.1 or 7.1 channels of sound, Dolby® Pro Logic® creates a seamless, natural soundfield and a more realistic audio experience.
Select a listening mode—Movie, Music, or Game—to adjust the audio playback for the best possible sound, no matter what your choice of entertainment.
Movie mode decodes movie soundtracks with the same audio mixing format used to encode most movie surround soundtracks, so you get the audio that the director intended.
Game mode adds impact to video games by reproducing full-range special effects to your surround channels.
Music mode produces natural and balanced surround sound from stereo content.
If you have a 6.1- or 7.1-channel home theater, you know how much difference having a full complement of speakers can make in providing realistic and completely enveloping entertainment.
But a lot of content is available only in stereo or 5.1-channel mixes.
To enjoy the most expansive surround sound possible, you need Dolby Pro Logic IIx. It takes stereo and 5.1 content—your favorite movies, concert videos, TV shows, and games—and transforms them to take full advantage of your home theater system.
Working behind the scenes to improve your listening experience, Dolby Pro Logic IIx:
Dolby Pro Logic IIx also introduces three listening modes—Movie, Music, and Game—so you can to tailor the audio to match the content and your preferences.
Music mode adds three audio controls that are especially useful for stereo (two-channel) content:
Dolby Digital Plus™ delivers a definitive surround sound experience for all your devices from home theaters to smartphones.
Dolby Digital Plus
Dolby Pro Logic IIx delivers 6.1- and 7.1-channel surround sound from both stereo and 5.1-channel content. The result: a consistent and compelling surround experience no matter what source and content the listener selects.
Log in to the Dolby Customer portal for help with your customer or partner account.
Apply for a license to include Dolby technologies in your products.
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