Dolby Atmos Beyond 7.1.4 – 파트 1(2023) (2023)

FAQs

Do you need 7.1 for Dolby Atmos? ›

Dolby Atmos takes Dolby's traditional 5.1 and 7.1 surround sound setups a step further by adding a third, overhead dimension. You're no longer constrained to a stereo system or standard six- or seven-channel arrangement.

Expert-Verified Answer. The sound is deeper and more precise with Dolby Atmos than with conventional Surround 7.1 systems due to the addition of overhead sound and superior calibration software.

If you want to transmit Dolby Atmos from your TV to your AV receiver or soundbar, your TV must be equipped with at least HDMI ARC. As we mentioned above, HDMI ARC works with Dolby Atmos/Dolby Digital Plus, but if your TV is equipped with the newer HDMI eARC standard, it will also work with Dolby Atmos/Dolby TrueHD.

We recommend installing four Dolby Atmos enabled speakers whenever possible. The use of four speakers will make the placement of overhead sounds more accurate, and you'll get more precise, realistic sounds when an object, such as a helicopter, passes overhead.

The overhead speakers should be at a height between two and three times the vertical position of the listener-level speakers. The angle of elevation from the listening position (to the front and rear) overhead speakers in a 7.1. 4 reference layout should be 45 degrees.

You must have at least two height channels for a Dolby Atmos system. Therefore, the minimum number of channels for Dolby Atmos is 2.0. 2, which is a stereo speaker system with two overhead/height speakers. However, Dolby recommends four height speakers for the best 3D experience.

The higher the bit rate, the better. You'd think that Dolby Atmos, being the more widely known brand name, would be the one with the higher bit rate. However, it's DTS:X has the higher bit rate. Dolby Atmos delivers a slower bit rate.

Both DTS and Dolby Atmos are top of the line sound systems that are made to get the most out of your home theater with surround sound. DTS does offer a higher sound bitrate, but the two are identical.

Dolby Atmos is an improvement on what came before and a leap forward from surround sound. It's ultimately designed to put you in the center of it all when watching movies or listening to music to give you the most immersive sound possible.

You're in luck — all you need is a single HDMI cable to connect your TV and soundbar enabled with Dolby Atmos (HDMI 2.0 for ARC should do the trick while HDMI 2.1 is necessary for eARC setups). This is the simplest option and will send audio directly from your TV to your soundbar.

Can Dolby Atmos go through HDMI ARC? ›

Most Dolby Atmos audio can be played through HDMI-ARC using the Dolby Digital Plus codec. HDMI-eARC is required to play lossless Dolby Atmos audio using the Dolby TrueHD codec.

How can I see if a song is available in Dolby Atmos? Play the song, then check for the Dolby Atmos badge in Now Playing. If every song on an album is available in Dolby Atmos, you'll see the Dolby Atmos badge on the album's detail page. Some songs are available in Dolby Atmos only on a particular version of an album.

Experts estimate the optimal Atmos mix room is about 18 x 21-feet with a ten-foot-high ceiling. The absolute smallest is 10 x 11.5-feet with at least an eight-foot-high ceiling. These space specifications are estimated for optimal speaker configuration and sound dispersion.

You can use any speaker for Dolby Atmos, provided you have a sufficient number of them for the full surround sound setup and a compatible AV receiver. Also, you will need elevated or ceiling speakers at an appropriate height and adequately aligned to experience the intended 3D effect of Dolby Atmos.

So a Dolby Atmos soundtrack also includes a more conventional channel-based "bed," together with the audio objects. Dolby Atmos packages up to 128 audio tracks — a 9.1 bed and up to 118 audio objects.

You can watch Netflix in Dolby Atmos audio on select TV shows and movies. You need: A Netflix plan that supports streaming in Ultra HD. A Netflix-capable device that can play Dolby Atmos.

Like, it's a night/day difference in terms of max volume compared to standard. As soon as I enable Atmos, songs get so much quieter. Switch it off, and you can hear “real” full volume again.

A Dolby Atmos installation requires a minimum room volume of 50m³.

What size room is best for 7.1 surround sound? ›

How big is your room? If it's larger than around 350 square feet, consider a 7.1 speaker setup. If it's smaller, a 5.1 may be more appropriate.

The Right Subscription Plan

Netflix hosts a few different subscription plans for its users. You'll need the Premium subscription plan which gives you access to Dolby Atmos and Ultra HD (4K) content.

Dolby Atmos is a surround sound technology built on the codec of Dolby Digital Plus (Dolby Digital Plus is also known as Enhanced AC-3). In addition to the multi-channel surround sound capabilities of Dolby Digital Plus, Dolby Atmos adds additional height-based audio channels.

Dolby TrueHD is a lossless audio codec with support for up to 7.1 audio channels and is used with Blu-ray Discs. No major streaming platforms use it. Dolby Atmos is a 3D surround sound technology that allows sounds to be placed anywhere in a 3D environment.

Dolby TrueHD

True to the artist's vision, Dolby True HD delivers the best sound possible for movies, music, and TV shows with lossless audio.

Dolby Atmos is a 3D surround sound technology, while lossless means that track was compressed without any data loss - tracks have higher bitrate, so they should sound better on supported devices than standard AAC, MP3 or any other tracks with lossy compression I guess.

Which is better: DTS or Dolby Digital? Based on the specs alone, DTS beats its rival with higher bit-rates that promise a more realistic movie experience. That said, other factors such as signal-to-noise ratio and speaker calibration mean that plenty of audiophiles would rate Dolby above DTS.

Dolby Atmos for Headphones will work with any headphones, since the software still outputs to just two channels to simulate sound from all directions.

The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on streaming services such as Dolby Atmos and DTS HD Master Audio. These formats can't be transmitted across optical. In terms of simplicity, HDMI also passes video signals.

HDMI ARC or digital optical audio? HDMI ARC is a better option. It supports Dolby Digital Plus, Dolby Atmos, and up to 7.1 channels of uncompressed audio while Digital Optical only supports Dolby Digital and up to 5.1 channels of uncompressed audio.

Is eARC necessary for Dolby Atmos? ›

Is eARC Required for Dolby Atmos? No, eARC is not required for Dolby Atmos to work. Dolby Atmos can work with regular HDMI ARC through the Dolby Digital Plus audio codec.

Press the Audio, Info, or Menu button on your TV remote to bring this text up. Look for a reference to Atmos or Dolby Atmos. Check your AV receiver. If you're using an AV receiver, look at its display to see what audio it's detecting.

Dolby Atmos content is not delivered through optical connections or through wireless connections of Bluetooth, AirPlay, or Chromecast. Most video streaming services that offer Dolby Atmos content use the Dolby Digital Plus codec.

In the discussion PCM vs Passthrough, we can determine that Passthrough technology is better than PCM regarding sound quality and ease of use and is preferred in home theater landscape arrangements. Nevertheless, PCM technology is better at handling multiple audio channels and converting analog sound to digital.

But of course, the one sure fire way to confirm Dolby Atmos is working on your soundbar is to use the best tools you have — your ears. From a surround sound perspective, if you're getting Atmos you should be able to detect sounds as they appear to move from one area of the room to another.

Go to Settings > Music > Dolby Atmos. Choose Automatic or Always On. Automatic: Plays Dolby Atmos whenever iPhone is connected to compatible headphones such as AirPods (3rd generation), AirPods Pro, or AirPods Max, or to speakers or receivers compatible with Dolby Atmos.

Without surround sound, you need to purchase speakers in order to use Dolby Atmos. Dolby Atmos can be used with surround sound, but you will not get the full experience without the right speakers and location.

Setting up your Dolby Atmos soundbar. If you're like the rest of us and want to get the most out of your shiny audio gadget, mount the soundbar in front of your television. Then, set it at the same height or slightly above your ear level and make sure that it's approximately five feet away.

For an ideal playback experience, a Dolby Atmos enabled sound bar should be located at least 4 to 5 feet (1.2 to 1.5 meters) from the listener's seated position.

Floor (listener plane) speaker height/soundbar height should be at your ear level when seated, typically 3.9 feet (1.2 meters) from the floor. Subwoofer should be on the left side, slightly in front of the soundbar.

Should subwoofer be in front or back of room? ›

If you're in doubt, put the subwoofer in front of the room. Some audiophiles feel, if a subwoofer is a few feet away from the wall you'll have improved sound quality. It reduces the risk for standing waves and nulls helping to ensure great quality bass.

If you don't have a multi-speaker setup, you can still mix music in Dolby Atmos. The way to do this is to use the Dolby Atmos plugin to render your music to headphones, essentially creating a binaural version of your 3-dimensional mix. It's not a true representation of what your music will sound like through a 7.1.

Anyone can hear the diffenrence between tradition 5.1/7.1 and Atmos. If you know anyone who has a Dolby Atmos surround set at their place, go there and listen to it. To my ears, Atmos delivers the most complete surround sound today. The added height speakers will make you feel like you're in the movie.

Ideally, all speakers should be at the same height; Dolby recommends 3.9 feet, which is about ear level for the seated listener. If it's impractical to place rear speakers at the same height as the front speakers, rear speakers may be placed higher, up to 1.25 times the front-speaker height.

Dolby Atmos audio in Dolby Digital Plus is typically encoded at bitrates between 384 and 768 kbps.

In a larger room, 7.1 surround sound is undoubtedly better, offering a more immersive experience and richer sound quality overall. But it's almost always more expensive, trickier to set up and unsuited to smaller spaces.

A 7.1 surround sound setup produces a better audio experience overall. In all categories aside from price comparison, these models dominate. On the other hand, a stereo surround sound headset is far more affordable. Still, it lacks independent channels, precise volume control, and audio processing capabilities.

You're in luck — all you need is a single HDMI cable to connect your TV and soundbar enabled with Dolby Atmos (HDMI 2.0 for ARC should do the trick while HDMI 2.1 is necessary for eARC setups). This is the simplest option and will send audio directly from your TV to your soundbar.

“In short, 7.1 Surround Sound for Gaming is not an absolute necessity. In all honesty, you don't even need Dolby Atmos or DTS Headphone: X.

2 system uses two ceiling speakers, or two Dolby Atmos-enabled speakers or modules. A 5.1. 4 or 7.1. 4 system uses four ceiling speakers, or four Dolby Atmos-enabled speakers or modules.

How many speakers do you need for 7.1 surround sound? ›

A 5.1 system consists of 6 loudspeakers; a 7.1 system uses 8. The two additional loudspeakers contained in a 7.1 configuration are employed behind the listening position and are sometimes called surround back speakers or surround rear speakers.

When asking yourself “Is Dolby Atmos worth it?” you need to think about what you want to use your home theater for. If you want to make your theater as similar to a professional theater as possible and you have the time and means to set the system up, then Dolby is worth it.

This means more depth and greater realism for you at the movies. In addition to improving the side-to-side panning of sounds and sound localization, Dolby Surround 7.1 enhances audio definition, so you hear individual sounds more clearly and distinctly.

7.1 surround sound is the common name for an audio system that can recreate sounds at different angles and distances, allowing the listener to visualize an object's position with sound. These systems are commonly used in home theatre configurations and headsets that help immerse users with a full audio experience.

Dolby Atmos sound can be transmitted through any HDMI cable, including HDMI 2.0. However, you also need to be sure that all devices involved, such as the TV, are capable of delivering Atmos. For equipment that can handle HDMI eARC, HDMI 2.1 cables are recommended, but HDMI 2.0 cables will work fine.

The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on streaming services such as Dolby Atmos and DTS HD Master Audio. These formats can't be transmitted across optical.

The 7.1 Surround Sound is enabled when you see the toggle switch is in the "On" position and the speaker animation in the middle is active as seen in the image below.

A 7.1 surround sound setup has two front speakers, a subwoofer, a center channel, two surround speakers, and two rear speakers. With this setup, you should place rear speakers behind the listener at a 135-150-degree angle.

Ideal Setup for 7.1.

You will want to position your main left and right speakers at anywhere between a 45 to 60-degree angle to your listening position. The center channel should be centered on your screen. Ideally, the height of your left, right and center will be at ear level or slightly higher.