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DOLBY ATMOS SURROUND SOUND HOW TO
DOLBY ATMOS SURROUND SOUND MANUAL
DOLBY ATMOS SURROUND SOUND PLUS

DOLBY ATMOS SURROUND SOUND PLUS

This is why ARC can only support the compressed lossy format of Dolby Digital Plus and why only eARC is capable of handling Dolby TrueHD. The HDMI ARC Standard can support 1-3 Mbps of data, whereas HDMI eARC can support up to 37 Mbps.Īs you can see, there is a considerable difference between the two formats. Dolby TrueHD needs more bandwidth and more processing power to operate. If you are using standard ARC, it is the only way to transfer the audio and speaker metadata. What this means for the Dolby audio codecs is that Dolby Digital Plus allows for quality audio formats like Dolby Atmos to be used on equipment not rated for the aggressive bandwidth and processing needs. Lossless compression does not reduce the data’s size, which means it can be a very data-intensive audio format. This means that no data is compromised, and you are hearing the studio master. Compare that to lossless compressions where the end result is basically the same quality as the original. This allows for a reduction in the size of the data. What lossy does is essentially remove the fragments of audio in the master that won’t be notibly different.

Lossless – When the audio is compressed and then unpacked it returns to the original master.

Lossy – The file is compressed, but it is not the same as the original file when it is unpacked.

Here is the difference between compression types: These two factors will determine whether your system will need to compress the audio or leave it uncompressed. Regardless of how it’s done, there are limitations to these audio codecs and that’s the amount of bandwidth available to transfer the data. Dolby TrueHDĭolby Atmos uses either Dolby Digital Plus or Dolby TrueHD to handle the actual audio which is done in a couple of different ways. The Difference between Dolby Digital Plus vs. Dolby TrueHD, on the other hand, is lossless but is not supported by HDMI ARC (but is supported by HDMI eARC). Dolby Digital Plus, for example, is supported by ARC standard but does compress the audio through lossy format, and not lossless. There is a difference between these two, and only one is supported by ARC standard. Look under “Audio Codecs” and see if Dolby Digital Plus is listed.ĭolby Atmos isn’t technically an audio codec, it is still reliant on the Dolby Digital Plus or Dolby TrueHD audio codecs.

DOLBY ATMOS SURROUND SOUND MANUAL

Look at the user manual because there might be information that helps you find out if your TV is compatible. In general, most TV’s made after 2017-2018 will usually support Dolby Digital Plus (lossy or compressed Dolby Atmos) with HDMI ARC.

DOLBY ATMOS SURROUND SOUND HOW TO

How to Tell if your TV Supports Dolby Atmosįinding out whether you have a TV that can support this function can be tricky. However, because the ARC feature has become popular in the last few years, TV manufacturers have started to add ARC ports that support a version of Dolby Atmos. HDMI standards change, and in the most recent release of 2.1, eARC was introduced which remedies a lot of ARC and Atmos issues, but more on that later. While technically it is not supposed to transfer surround sound data, because of the high-bandwidth capabilities, it can. It takes advantage of HDMI capabilities and bandwidth maximums. HDMI ARC, which we’ve explored at length in another article, has allowed for audio to travel from your device to your soundbar, speakers, or audio receiver without the need to run another cable. One issue arises when trying to transfer the heavy load of data from one device to another. This relatively new technology may be unique, but it does come with its hiccups.

If both devices support HDMI eARC, then Dolby Atmos is definitely supported.ĭolby Atmos gives consumers access to a type of surround sound that was once only available in cinemas.

You can typically find this information under the supported audio codecs in the TV’s user manual.

You need to make sure that both devices support HDMI ARC and that the TV is capable of sending Dolby Digital Plus, not just Dolby Digital through HDMI ARC. HDMI ARC can send Dolby Atmos with the Dolby Digital Plus audio codec. One question people commonly have is whether HDMI ARC can send a Dolby Atmos signal. But if you are planning on using HDMI ARC to send sound from your TV, you may want to first understand Atmos and HDMI ARC’s limitations for a couple of reasons. Dolby Atmos is quickly becoming featured on high-end speakers and even soundbars (more on that in our guide).