Dirac vs Audyssey: Room Correction Terms on Soundbar Listings

What room correction means on a soundbar listing

Room correction is a listing term on some soundbars and home theater devices. It names a feature that measures the room you place the bar in and adjusts the bar's output to what it measured. On a listing you may see it as "room calibration," "auto calibration," "room correction," or a maker's own name.

The measurement happens during setup, usually with a microphone. The microphone may come in the box or be sold separately, and a listing may not say which. The setup steps are described on the maker's page and in the manual, and the manual tells you how to run them.

This site compares soundbars on stated details, so a room correction name is a feature word, not a measurement. For the microphone question, see room correction microphone and auto room correction.

Room correction is most often named on premium bars and on bundles that include a subwoofer or rear speakers. Those listings carry the longest feature lists, and the catalogue treats a missing name as "not stated by the seller," not as proof the bar lacks the feature.

Dirac Live as a listing term

Dirac Live is a room correction system from Dirac Research, a Swedish company that licenses the technology to makers of audio devices. On a soundbar listing, "Dirac" or "Dirac Live" appears as a feature word in the bullet list or the description, not in the title.

A listing that names Dirac Live does not state which version of the system, how many measurement points, or whether the microphone is included. Those details sit on the maker's page for the model.

Dirac Live shows up most often in the premium tier of soundbars and receivers. When you compare listings, treat the name as a feature and read the rest of the listing for the channel layout, the subwoofer and the connections. The premium soundbar guide compares premium picks on stated details, and channels explained walks through layout terms.

The first words of a soundbar title name the model and the layout, while feature words like "Dirac Live" sit later in the title or in the bullet list. If the title names no room correction, read the bullets before you decide the feature is absent.

Audyssey as a listing term

Audyssey is a room correction system from Audyssey Laboratories, a maker of audio calibration technology. It is named on some home theater products, including AV receivers and some soundbars. On a listing you may see the word alone, or a longer name such as "Audyssey MultEQ."

The listing does not state the number of measurements or the microphone. Read the box contents list and the maker's page for the model before you buy, and check the manual for the setup steps.

Makers name their own room tuning differently. Sonos, for example, describes its Trueplay tuning as adapting the sound to your surroundings, which is Sonos' own name rather than Dirac or Audyssey. The best soundbar guide shows how maker names appear across listings.

How the two compare on stated details

Neither the catalogue nor the maker's page states which system sounds better. A comparison has to stay on the details a listing states: the channel layout (2.0, 3.1, 5.1), whether a separate subwoofer is in the bundle, whether rear speakers are named, and the connections such as HDMI eARC or optical.

Two listings that carry different room correction names are still compared on the details both list, not on a judgment about which technology wins. The HDMI ARC vs eARC article explains the connection terms, and the separate subwoofer and rear speakers guides compare bundles on stated details.

When you compare two premium listings, write down what each states: the room correction word, the microphone in the box, the channels, the subwoofer, the rear speakers and the HDMI port. Then check the maker's pages for each model. That list is what this site compares on.

What to check before you buy

Read the full bullet list for the room correction name, check whether a microphone is listed in the box contents, and open the maker's page for the model. The maker's manual describes the setup steps; follow them.

Room correction adjusts the bar to the room you measure in, so the space and the furniture placement affect the result. The catalogue has no figure for that, so measure your own room and place the bar as the manual says. The room size guide explains the room questions to measure yourself.

Room correction often runs through the maker's app, so check whether the listing names app control and read the remote and app article before you buy.

What to pick for your situation

Questions

Which is better, Dirac Live or Audyssey?

No listing or maker page in the catalogue states a winner, and this site compares stated details only. Read what each listing names: the room correction word, the channels, the subwoofer and the connections, then compare those details.

Do I need room correction on a soundbar?

It is a feature word, not a requirement. A listing that omits it is still a complete listing; compare the stated details.

How do I find Dirac or Audyssey on a listing?

Look in the bullet list and the description, not the title. The title usually names the model and the channel layout.

Does the listing tell me the measurement points?

No. The number of measurements and the microphone are on the maker's page and in the manual, not in the catalogue.

Is room correction the same as an EQ mode?

No. EQ modes and sound presets are separate feature words. Room correction is a setup feature that measures the room; the listing states each feature separately or omits it.

Can I add a room correction system to another soundbar?

The catalogue does not state that. Check the maker's page for the model and ask the maker whether the feature is supported.