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- Overview
- 1. Not checking your soundbar’s channel balance
- 2. Suffering audio lag thanks to ARC/eARC
- 3. Losing advanced HDR and gaming picture quality
- 4. Not experimenting with music modes
- 5. Thinking that all versions of Dolby Atmos are equal
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How-to
By John Archer
published 17 June 2022
From audio sync issues to getting the best kind of Dolby Atmos
(Image credit: Future)
The whole idea of adding one of the best soundbars to your TV setup is that they’re supposed to make getting better sound quality in your living room easy. While it’s true, though, that any half-decent soundbar will likely sound better than pretty much any built-in TV sound system as soon as you get it out of the box, there are actually any number of mistakes people make when setting up and using their soundbars that can stop them from sounding their best.
While pretty much all soundbars will find themselves tucked underneath a TV screen, the exact room conditions they find themselves placed in can vary almost infinitely. Which means the sound they produce can also vary dramatically as it bounces off surfaces in your room. And that goes double now that so many soundbars create audio channel effects specifically by reflecting their sound off walls and ceilings.
Getting the most balanced and therefore immersive sound from a soundbar will therefore require you to compensate for the imbalances and eccentricities of your particular room layout.
Most soundbars let you adjust the relative volumes of their various channels via remote controls or apps on your phone, so assuming yours does, sit yourself in your favourite viewing position and cycle through the channels your soundbar supports tweaking each in turn until you’ve got the most balanced overall sound.
In a perfect world your soundbar will have an auto-calibration system, where mics in the main soundbar or remote control listen to test signals and automatically adjust the soundbar’s output accordingly. A lot of higher-end soundbars have this built in, and Sonos soundbars can do this through the Sonos app, though only if you have an iPhone, sadly.
On paper, the audio return channel (ARC) technology that’s part of the HDMI connection specification is a fantastic idea. After all, it lets TVs that support ARC send their sound out via ARC-certified HDMI connections to external devices such as soundbars and AV receivers, reducing cabling headaches and essentially turning your TV into a convenient audio ‘switching device’.
In reality, though, ARC isn’t always the blessing it sounds. It’s become infamous over the years for causing sound to become dislocated from the pictures with some AV setups, so that actors’ lips move out of sync with the words you’re hearing them say.
To be clear, this is by no means universal with ARC. In many setups it works just fine. It continues, however, to be one of the most common audio complaints we hear about. Fortunately, if this affects your soundbar when using ARC, there are things you can do about it.
First, some TVs and soundbars provide options for adjusting the audio timing to try and fix potential sync errors, and this is a good place to start. However, these adjustments can be hard to find and don’t always fully solve the issue, though.
Experience suggests, too, that sometimes once source can cause audio lag in a system while others don’t, so you could find yourself having to keep changing the audio lag settings (if your gear supports them) repeatedly.
With all this in mind, the best way to limit audio sync issues is to use your soundbar’s HDMI passthrough system, if it has one. Some soundbars have an HDMI input as well as an HDMI connection to the TV, and they can pass through video to the TV, but take the sound along the way.
Having just sung the praises of the HDMI passthrough systems carried by some soundbars, there can also be a downside to them that you may need to know about depending on the capabilities of your TV and sources.
If you own a PS5, an Xbox Series X or a PC with a recent high-end graphics card, as well as a TV capable of handling 4K resolutions at 120Hz refresh rate with VRR, then you will want your soundbar’s HDMI passthrough to be capable of passing such cutting-edge visuals through to your display. Unfortunately, however, very few soundbars currently can do this. Trying to pass such signals through will almost without fail see them stripped back to at best 4K 60Hz with no variable refresh rates.
Even the latest LG and Samsung soundbars don’t support enough data bandwidth over their HDMI ports to carry 4K 120Hz and/or VRR through to screens, despite many of their latest TVs supporting such cutting-edge graphics features.
The Sony HT-A7000 soundbar supports 4K 120Hz passthrough, but not variable refresh rates. But that’s currently it in terms of cutting-edge gaming support via HDMI loopthrough in today’s soundbar market.
The other issue with HDMI passthrough is that while the vast majority of soundbars with it now support passing through HDR, many don’t support passing through the ‘premium’ HDR10+ and Dolby Vision HDR formats. Or, in some cases, they only support one of these premium HDR formats, not both.
LG and Sony soundbars, for instance, support passthrough of Dolby Vision, but not HDR10+. So even if your TV supports HDR10+, if you loop an HDR10+ signal through a soundbar that doesn’t support HDR10+, then your TV won’t actually receive HDR10+. So you’ll lose the picture quality benefits associated with the extra scene by scene picture information HDR10+ signals carry.
Many soundbars are designed predominantly with movie and TV soundtrack playback in mind. However, there’s no reason in principle why they can’t do double duty as quality music players. In fact, a growing number of soundbars support both hi-res audio files and direct streaming from popular music apps.
How good soundbars sound with music, though, can depend massively on which sound preset you use. For instance, some multi-channel soundbars provide default sound modes that essentially remix stereo music to take advantage of all the channels a soundbar provides. This is clever and, where the remixing processing is particularly impressive, it can deliver surprisingly immersive and convincing results.
The upmix process can just as often, though, sound pretty nasty on soundbars that don’t have good-enough audio processing, or where that processing is tuned more for movie audio. In which case you’ll likely need to make sure your soundbar is set to a mode that sticks to straight stereo playback.
To keep you on your toes, we’ve heard soundbars that sound better with music in their upmix modes than they do in stereo, and have also found that some soundbars sound better in different modes with different musical genres.
Dolby Atmos soundtracks are arguably the pinnacle, alongside DTS:X, of the current sound quality world. Just because your soundbar might say it’s receiving Dolby Atmos, though, doesn’t necessarily mean it’s receiving the best version of Dolby Atmos.
Dolby Atmos can actually be carried in two types of ‘container’: one called Dolby Digital+, the other called True HD. The DD+ option is a compressed version, typically used for streamed content. The True HD version is uncompressed, and so delivers the cleanest and most dynamic sound.
The key point is that whether you get the best Dolby Atmos version or can depend on your soundbar connections. First, some brands – most notably LG and Samsung - have introduced wireless Dolby Atmos support this year, whereby their TVs can send Dolby Atmos to their soundbars without needing any cables. Very convenient and futuristic, but the version of Dolby Atmos used is the lower quality DD+ one.
A more common misunderstanding concerns our old friend, HDMI ARC technology. There are actually two types of ARC HDMI connection: the standard/original version, and a newer eARC version found with more recent HDMI connections. If your TV or soundbar only supports ARC, you will only be able to pass the compressed DD+ version of Dolby Atmos from your TV to your soundbar. If both your TV and soundbar support eARC, you will be able to use it to ship full, uncompressed Dolby Atmos for even more detailed sound.
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Apr 9, 2024 · First, ensure both ends of the cable are fully and securely inserted into your TV and soundbar. Try to keep the cable clear of other connectors (especially power) in the tangle of wires behind your TV. Simply moving the 3.5mm cable can sometimes solve this issue. If this doesn’t solve the problem, make sure your TV volume is turned all the ...
The first step is to ensure the connection is complete by checking that both ends of the cable are inserted into the TV/DVD player/set-top box and soundbar. The cable should also be clear of other wires, such as the other connectors behind your TV. Sometimes it’s as simple as shifting the 3.5mm cable a little.
- Andrew Heinzman
- Editor
- Before Troubleshooting, Try These Quick Fixes. By default, your smart TV should choose the correct audio settings for your soundbar. And for this reason, soundbar problems are usually due to software bugs, bad cables, or the settings of an external video source (such as a DVD player, streaming stick, cable box, or game console).
- Soundbar Won't Connect to the TV. Andrew Heinzman / Review Geek. Soundbars are very easy to set up, and generally speaking, you shouldn't have any problems if you follow the manufacturer's instructions.
- Soundbar Is Glitchy, Quiet, or Noisy. Justin Duino / Review Geek. Does your soundbar sound a bit unusual? If it always sounds weird, a loose or broken cable may be to blame (or you've just got your volume settings wrong).
- Surround Sound Won't Work. Andrew Heinzman / Review Geek. Most soundbars offer some kind of surround sound. This may be achieved using additional speakers, though it's not uncommon for a standalone soundbar to offer virtual surround sound through DTS X or DTS Virtual:X.
Mar 28, 2023 · Check the Audio Cable Connection. Another common cause of is a loose audio cable connection. Check the audio cable connection between the soundbar and the audio device (TV, laptop, phone, etc.) and make sure it’s securely plugged in. If the audio cable is damaged or worn out, replace it with a new one.
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