In Dolby Atmos, any sound-the helicopter, a car screeching around a corner, a melodic bird call-can exist as an independent audio object, free of channel restrictions. It's the first cinematic audio format in which sounds exist as individual entities, called audio objects.

You hear it only from the small number of predetermined locations defined by the speaker setup, not as you'd hear it in real life.ĭolby Atmos, by contrast, frees sound from channels. While that helicopter can move across channels, it can't go above you. If a scene requires, say, a helicopter taking off, that sound has to be assigned to specific channels and mixed together with other sounds. Traditional surround soundtracks must confine all sounds to the 5.1 or 7.1 channels of a typical home theater setup. You decide how and when to use them.Freeing Sound from Channels-the Dolby Atmos Concept And Dolby AC-4 gives you the flexibility to deliver future services and experiences-on your timetable.ĭolby AC-4 provides the tools. Built-in self-configuration and automation will improve reliability and help you lower your operational costs. You can transfer information more reliably. Personalized audio streams that enable broadcasters to provide customized presentations and elements that consumers can select to enjoy audio that matches their interests.Immersive audio, enabling sound to move around the audience in three-dimensional space.Delivery of optimum playback across all use cases and devices.

The most efficient support for multiple languages and descriptive services.

Native support for dialogue enhancement, intelligent loudness, and advanced dynamic range control.

Greatly improved compression efficiency, up to 50 percent better than current broadcast-standard technologies.

It addresses a complete range of delivery methods, including traditional broadcast, mobile networks, and hybrid broadcast and broadband.

The Dolby AC-4 format fundamentally rethinks audio architecture to add capabilities while reducing complexity. Additionally, we've established partnerships with VIZIO, Sony Visual Products, and TP Vision to incorporate Dolby AC-4 into next-generation televisions. That's why we developed Dolby AC-4, which is already standardized with the European Telecommunications Standards Institute (ETSI), adopted by the Digital Video Broadcasting Project (DVB), a candidate standard for the audio portion of ATSC 3.0, and ready to deploy.

Any new system must remain compatible with your current applications. Yet you still have to do business now, with an existing infrastructure and operations that represent a major investment in equipment and people. To succeed, you need an audio system that allows you to stay agile and prepare for change. You've seen the future: evolving consumer expectations, rapid technology advances, viewers using more devices in more places, and increasing regulatory demands.

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