Everything about Dolby Atmos

Dolby Atmos

Dolby Atmos is the multi channel sound technology developed by Dolby Labs. As the name suggests, Atmos means to feel every sound in your surrounding.  Recently the “The Revenant” movie launched with dolby vision technology. This technology is mostly about the picture Quality.

whenever there is a perfect combination of colors, contrast and saturation in a video, it provides the vibrant look at the movie. This is Dolby vision. But with the visual clarity, there is also need of multi-dimensional sound. That’s Dolby Atmos. It is not same as of Dolby Digital plus. It requires 5.1, 7.1 and 9.1 speaker setup. To experience, Dolby atmos sound technology in your Home, you need a following things to do first

  • Ceiling speakers
  • New Dolby Atmos Enabled speakers
  • Dolby Atmos enabled soundbar

Dolby Atmos enabled speakers are specially engineered to direct sound upward, where it reflects off the ceiling to produce an incredibly lifelike re-creation of overhead sound. List of dolby Atmos enabled products can be viewed here.

While two Dolby Atmos enabled speakers, modules, or overhead speakers will deliver a compelling experience, we recommend using four if possible. It provides more precise and immersive experience.

Traditional Speaker setup

Typical surround sound setups have either 5.1 or 7.1 channels. A 5.1 system has left, right, and center speakers in front, with left and right surround speakers. A 7.1 system adds left and right rear surround speakers. The “.1” in these designations is for a subwoofer (sometimes called the low-frequency effects, or LFE, speaker) for the lowest bass.

Dolby Atmos
Dolby digital plus 7.1 setup
Dolby speaker setup
  • Basic layout                                              5.1.2  or 7.1.2
  • Reference layout                                    5.1.4 or 7.1.4
  • Enhanced Effect for large rooms     9.1.2

Speaker layout for 5.1 and 7.1 for surround sound. A 5.1.2 and 7.1.2 uses two ceiling speakers or two dolby enabled speakers.

A 5.1.4 or 7.1.4 system uses four ceiling speakers, or four Dolby enabled speakers or modules.

A 9.1.2 system adds a pair of front wide speakers to a 7.1.2 layout.

So, using four speakers will offer the optimum sense of audio movement and precision in most rooms. The image below shows the 7.1.4 speaker setup which will provide more immersive sound experience.

Dolby Atmos
Dolby Atmos 7.1.4 setup

We can also have a Audio/Video receiver which generates dolby Atmos sound for studios. Onkyo, Pioneers, Sony and Yamaha providing the dolby based receivers. Some of these receivers are also certified by “Air Studio”. This receivers is used by many composers in Air studio.

This technology is not just limited to theater or home. But in mobile, Dolby Atmos powering Lenovo, Sony, HTC, LG and Microsoft phones.

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