[Home Theater Network HDAV.com.cn] Dolby Laboratories refers to Dolby Atmos as "the biggest development in the field of cinema audio since its own surround sound." Now the home theater system is also starting to use Dolby Atmos.
Dolby Atmos has been around for a while and is popular in Hollywood. However, most countries except the United States have not equipped their theaters with compatible sound processors and speakers. The good news is that some home theater systems are now using Dolby Atmos, and you can enjoy great sound at home. Tianlong, TEF, Marantz, Onkyo, Pioneer and Yamaha have introduced such products, and you can get the desired effect by adding speakers. The following HIFI editor will introduce you to what Dolby Atmos is and how to purchase related products.
1. What exactly is Dolby Panorama?
Dolby Panorama was born in 2012, breaking through the existing 5.1 or 7.1 channel technology, enabling speakers placed at various points in the room to make different sounds one by one, bringing a true surround sound experience to the user. The speakers are placed along the walls, on the ceiling, and even behind the screen, and the sound is “pushed†to the audience. A Dolby Atmos Theater can be configured with up to 64 speakers, and their surround sound gives the audience an immersive sound experience.
Of course, in reality, we are unlikely to have 64 speakers in a room, so there are several simplified configurations available: add 2 or 4 ceiling speakers; in your existing floor-standing speakers, bookshelf speakers (front Add speakers at the top of the left (front, right, front, right, or surround) (0.2 amps, 0.4 amps, and 2 sets); or add a dedicated Dolby panoramic sound box .
Once a set of Dolby panoramic sound systems is installed, the mixer can calibrate the sound and accurately “send†it to the various points in the room. Each speaker in the system has its own independent sound source, creating a new front, surround, and ceiling channel.
2. Dolby Atmosphere in the family
For most people, a complete, cinema-level Dolby Atmos sound system is a bit out of reach, and simplification is imperative. AV vendors took the opportunity to intervene.
First, you need a compatible AV amplifier to decode the panoramic soundtrack from Blu-ray Disc. Pioneer's award-winning SC-LX88 is ideal. Its sound is strong and powerful, and it can fully highlight the advantages of panoramic sound. The RX-A3040, a product of its kind that Yamaha, can also show a strong and powerful sound, but sacrifices a little sensitivity and clarity. New products released by Onkyo include: two AV amplifiers (TX-N1010 and TX-N3030), a network AV controller, a two-piece home theater, and two speaker sets. It also introduced firmware upgrades for the TX-NR636, TX-NR737 and TX-NR838. This upgrade means that players can enjoy panoramic sound technology without having to add a new AV amplifier (but the speakers still have to be added).
You don't necessarily need an overhead speaker. Dolby's hardware partners are about to launch sub-speakers that can replace ceiling speakers. Pioneer is the first to introduce the complete Dolby speaker suite: the S-73A. The surround sound that comes out of it is quite in place, allowing you to feel the sound whizzing past your head. Although the overall sound effect should be more abundant in terms of details, it definitely represents the future development trend. It is foreseeable that more and more brands will launch similar new products.
Dolby Atmos can be used in your existing home theater system. Just install a module that makes it compatible with panoramic sound on top of your speakers, plus an AV amplifier that is compatible with panoramic sound, your system will give panoramic sound. KEF's newly released R50 speaker module is such a product, not only for KEF speakers, but in fact it can be used on any speaker.
3. Dolby Atmosphere in the cinema
Many movies have already released a panoramic sound version, the first one is the Brave released by Disney and Pixar in 2012. Others include The Pacific Rim, Noah's Ark: The Journey of Creation, and Gravity. The upcoming Avengers 2: The Age of Ultron will also feature panoramic sound technology. Some directors have a lot of praise for Dolby's panoramic sounds, Gilmore del Toro (represented as "Pacific Rim", "Devil's Silver Claw", "Blade Warrior II", "Pan God's Labyrinth", etc.) “Dolby Panorama gives me new creativity and changes the rules of the game. People are talking about 3D movies, and panoramic sound is actually 3D sound. I think every movie theater should use panoramic sound technology, it is also when I mix. The first choice for 3D movie lovers and director Peter Jackson (represented in the "Lord of the Rings" series and the "Hobbit" series), "The immersive surround sound brought by Dolby Atmos The experience is exactly what I have been looking for as a filmmaker.†On the Dolby website, you can find a list of theaters that use panoramic sound technology.
4. Speaker configuration
5.1-channel audio tracks are available on most DVD, Blu-ray Disc, HDTV and other surround sound sources. This means that if you are configuring a 7.1 or higher speaker, the AVR will still send a 5.1 channel signal to the speaker.
With Dolby Atmos, all speaker configurations are mixed first. This includes ceiling speakers, front speakers that are compatible with panoramic sound, and speaker modules added for use with panoramic sound. A set of 5.1.2 speakers includes a traditional 5.1 speaker, plus a pair of ceiling speakers or a pair of speakers that support panoramic sound. A set of 7.1.4 speakers includes a traditional 7.1 speaker, plus two pairs of ceiling speakers, or a pair of front speakers that support panoramic sound and a pair of surround speakers that support panoramic sound. It is said that the AV-compatible panorama power can emit sounds superior to 5.1 channels when playing 5.1-channel content. Let us wait and see.
5. Audio content with Dolby Atmos
With a home theater system that is compatible with panoramic sound, what you need is audio content with panoramic sound technology, so you can indulge in the whole house sound.
Dolby Laboratories says that as long as your existing player meets the current Blu-ray specifications, you don't need to add a new Blu-ray player to play panoramic content. The key is: movies with panoramic sound technology will be released in Blu-ray Disc and streaming media. The first panoramic sound film released in the form of blue light was "Transformers 4: Extinct Rebirth" in November 2014. There are not many such movies at present, but they are slowly increasing. Michael Bay (represented as "Transformers" series and "Pearl Harbor") is also a fan of panoramic sound. "Ninja Turtles: The Age of Variants" also uses panoramic sound technology. Dolby Laboratories has released a list of movies (see below), and all eight films on the list offer panoramic sound effects:
Death Squad 3 (Blu-ray)
Gravity (Special Edition) (Blu-ray)
"Hunger Games 3: Laughing Birds (Top)" (Blu-ray)
"Fast chasing" (Blu-ray)
Every Sunday 2 (Blu-ray)
"Dancing my life 5" (Blu-ray)
Teenage Mutant Ninja Turtles: The Age of Variants (Blu-ray)
Transformers 4: Extinct Rebirth (Blu-ray)
Unbreakable (Blu-ray)
6. Panoramic sound applications in other platforms
Amazon released the latest Kindle Fire and Kindle Fire HDX
Tablet; Dolby says the Kindle Fire HDX 8.9 delivers Dolby panoramic sound as long as it's connected to a headset. We have some doubts about this, can a pair of headphones bring an immersive sound experience? In fact, on a tablet, panoramic sound is operated by "binaural headphone rendering" and "object-based audio."
"Bear Headphone Rendering" uses HRTFs (heat-related transfer functions) to make surround sound through headphones. To illustrate the principle, Dolby borrowed a car speaker as an example. When the horn sounds in your right ear, your right ear gets an "explosive" full sound; and the sound heard by your left ear is not so powerful, because the sound has to "pass through" you The head can only reach the left ear. Your brain recognizes the difference, telling you to look at your right side, whether there is a vehicle on your right side. Dolby reverses this process and creates virtual surround sound through the single-sided speaker of the headset, creating the effect that sound surrounds you from all sides. "Object-based audio" is the foundation of Dolby Atmos. Each sound in a scene contains clear information about where it should go to the speaker.
Dolby combines these two technologies to create a virtual surround sound experience on mobile platforms. More fresh and fun home theater information, please pay attention to home theater network (WeChat: cnhifi) http://, the country's most influential home theater audio player interactive media website.
Note: This article is transferred from hifishuo. The article is an independent view of the author and does not represent the position of the home theater network.
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