• Dolby Atmos for Mobile

    • Dolby Atmos® delivers powerful, moving audio on your phone or tablet for bigger, better sound on the go.

    • Dolby Atmos Benefits

      • Amazing sound

        Dolby Atmos brings astonishing clarity, detail, and dimensionality to your mobile life — it’s the bigger, better sound on the go you’ve always wanted.

      • Moving audio

        Experience enhanced sound for everything you listen to over mobile speakers — and over headphones, the sounds of your entertainment seem to move all around and above you, so you feel like you're inside the action.

      • Powerful experience

        In addition to immersive Dolby Atmos audio, enjoy great Dolby sound through dialogue enhancement, volume leveling, and virtualized immersive audio for all your mobile content.

      • New enhanced features

        For content like voice messages, videos, audiobooks, podcasts, and more, you’ll hear improved loudness, clearer speech, and reduced background noise.*

      • Dolby Atmos for mobile brings the premier cinema sound experience to your mobile life, creating powerful, moving audio on your phone or tablet over speakers and headphones. It even supports newer mobile devices with four speakers to give you bigger, better sound you have to hear to believe. Even for entertainment that wasn’t created in Dolby Atmos, you’ll hear much richer and more expansive sound.

        In addition to the immersive Dolby Atmos experience, you also get great Dolby sound for all your other mobile content.* You’ll notice louder, clearer sound without speaker distortion or rattle for softer sounds like piano notes and quiet voices and for louder, more intense sounds like action movie explosions. Dialogue is automatically enhanced, volume is evened out, and you’ll hear virtualized, immersive audio for all your content.

        Dramatically reduced background noise in online and social media videos — along with automatically enhanced dialogue in content like live streams, podcasts, and audiobooks — makes it easier for you to follow the story. Background noise in voice messages is also reduced so you can hear playback clearly the first time on messaging apps like WeChat.

        Dolby Atmos and incredible Dolby sound make your mobile content sound clearer, more immersive, and more engaging than ever before.

        *The availability of certain aspects of Dolby sound processing varies with the device; check with manufacturer for details.

      • Audio Objects

        With Dolby Atmos, any sound can be rendered as a single audio element, an object, independent from the rest of the soundtrack. A child yelling, a helicopter taking off, a blaring car horn—the filmmaker can decide exactly where the sound should originate and where it should move as the scene develops.

        Audio objects allow filmmakers to concentrate on the story. For channel-based audio, filmmakers can only approximate a sound's desired location and cannot isolate individual sounds. With Dolby Atmos, filmmakers choose precisely where the sound should be located, and the system intelligently makes the speaker-assignment decisions based on the speaker array in the theatre or home. Audio objects originate and move anywhere in three-dimensional space, including anywhere overhead.

        Headphones and Built-in Stereo Speakers

        While cinema and home theater systems have multiple channels, the headphones and built-in speakers of mobile devices are two-channel stereo. To create the Dolby Atmos experience for mobile users, Dolby scientists drew on their extensive research and expertise in psychoacoustics, the study of how we perceive sound.

        Creating a realistic perception of height and surround sound two-channel mobile systems begins with head-related transfer functions (HRTFs). HRTFs describe how incoming sounds located at different positions around us arrive at our ears.

        Depending on where a sound originates, it may arrive at one ear very slightly later than at the other, and it may have slightly different characteristics at each ear (such as being softer or less distinct). The differences are caused by interference from the listener's head, torso, and external ears. The brain instantly processes these differences as spatial information, enabling us to hear in three dimensions. HRTFs represent these same differences mathematically.

        HRTFs Make Magic

        A streaming-media Dolby Atmos mix supports up to 128 simultaneous audio objects and includes metadata that describes the location of each one in space. The Dolby Atmos processor on a mobile device applies our extensive sets of HRTFs to this metadata to recreate the spatial information in a stereo signal. Heard over any headphones or earbuds, this stereo soundtrack accurately simulates the theatrical sound, including sounds from above, for a powerful and spacious experience.

        To reproduce this same experience over a device's built-in speakers requires additional processing. Speakers generate a natural "crosstalk" phenomenon at our ears that works against simulating multiple channels. The Dolby Atmos processor cancels this crosstalk and then applies the HRTFs to create the dimensional soundstage and movement of the audio objects.

        As an added benefit—and bit of magic—the Dolby Atmos processor delivers all this with minimal effect on battery life.

  • Level up your mobile game audio

    Discover how Dolby game mode brings bigger, better, faster sound to your mobile gaming experience.