How to connect Xiaomi soundbar to your TV LG: 4 proven methods + fixing

Connecting Xiaomi soundbar to a TV LG — The challenge that many users face when trying to improve the sound of a home theater, although it seems simple, can be complicated by incompatibility of connectors, lack of proper cables, or problems with synchronization of sound. In this article, we will analyze all possible ways of connecting - from the classical to the traditional. HDMI ARC Up to wireless Bluetooth, and give recommendations for setting up and eliminating typical errors.

The combination of Xiaomi technology and LG It's a big part of the difference between firmware and supported audio formats, for example, some Mi Soundbar or Redmi Soundbar soundbar models may not be able to reproduce sound correctly through an optical cable if the TV is a TV. LG It transmits a signal in Dolby Digital format.+, not standard PCM. We will discuss in detail how to avoid this and what settings are priorities.

This article will be useful for owners of budget models (for example, Xiaomi Mi). TV Soundbar or Redmi Soundbar Pro, and those who use flagship devices like Xiaomi Soundbar 3.1ch All instructions are for televisions. LG on webOS (2016-2026) and Xiaomi soundbars based MIUI Audio.

1. Preparation for connection: what will be needed

Before you start connecting, make sure you have everything you need. The lack of even one cable or the wrong choice of connector can cause sound to be transmitted with a delay or not play at all.

Here is the minimum set that will be required in 90% of cases:

• 🔌 HDMI-cable 1.4 or higher, for HDMI ARC/eARC) — Best option for multichannel sound transmission without loss.
• 🎧 Optical cable (TOSLINK) — alternative HDMI, If the TV or soundbar is not supported ARC.
• 🔊 Audio cable 3.5 mm (AUX) — universal solution for analog connection, but with limited sound quality.
• 📶 Bluetooth adapter (if the soundbar does not have a built-in module) – required for wireless connection.
• ⚡ Soundbar food unit (often included, but sometimes sold separately).

Also check the connectors on the TV. LG:

• 📺 HDMI ARC (usually signed "HDMI 2 (ARC)" or "HDMI eARC – a priority connector for digital sound.
• 💡 Optical Out (Optical Out) – found on most models LG, except for the most budgetary.
• 🔗 Audio Out (3.5 mm) – analog output, can be marked as “Headphone Out".

⚠️ Attention: If your TV is yours LG Released before 2018, it may not support eARC (improved standard) ARC), which will limit the transmission of sound formats Dolby Atmos or DTS:X. In this case, use an optical cable or update the TV firmware.

For convenience, we have compiled a table of compatibility of popular models:

2. Method 1: Connection through HDMI ARC/eARC (better)

HDMI ARC (Audio Return Channel is the most modern and reliable way to connect a soundbar to a TV LG. It allows you to transmit multichannel sound without compression, supports Dolby Digital formats, DTS, In the case of eARC, even Dolby Atmos and DTS:X.

Step-by-step:

1. Turn off the TV. LG and Xiaomi soundbar from the outlet.
2. Connect one end. HDMI-cable-wire HDMI ARC on the TV (usually a port with an inscription "HDMI 2 (ARC)" or "HDMI eARC").
3. Put the other end of the cable in the port HDMI ARC on soundbar (on some Xiaomi models it can be signed as "HDMI IN").
4. Put both devices on the network.
5. On the remote. LG press the Settings button → Sound. → Sound output.
6. Choose. HDMI ARC or External Speaker (HDMI ARC).
7. In the soundbar settings (if there is a display or an application) activate the mode HDMI.

If the sound doesn’t appear immediately, check:

• 🔄 Correct cable connection (try to stick it in another one) HDMI-port).
• 🔊 Volume level on the soundbar (sometimes it is default on "0").
• 📺 Sound settings on LG: Go to Settings. → Sound. → Additionally. → HDMI ARC Mode and turn on the option.

⚠️ Attention: On TVs LG OLED (model C1, C2, G1 and newer) you may need to enable Simplink (HDMI-CEC) work-in ARC. This function is located in the Settings menu → General. → Convenience → Simplink.

Cable connected to port HDMI ARC TV|Cable connected to port HDMI IN soundbar|In the settings of TV selected sound output HDMI ARC|Soundbar's got a mode activated. HDMI|The soundbar volume level is not at a minimum.-->

Critical Feature: If your Xiaomi soundbar only supports HDMI ARC, TV LG — eARC, the sound will be transmitted, but without Dolby Atmos support. To fix this, update the TV firmware or use an optical cable to transmit compressed Dolby Digital.

Method 2: Connection via optical cable (TOSLINK)

Optical cable (TOSLINK) — It's a digital connection that transmits sound without interference, but with some format constraints. HDMI ARC, The optics do not support Dolby Atmos and DTS:X, It ensures stable synchronization of sound and image.

How to connect:

1. Turn off power on both devices.
2. Connect the optical cable to the Optical Out port on your TV LG (It is usually located on the back panel and closed with a plug).
3. The other end of the cable is inserted into the Optical In port on the Xiaomi soundbar.
4. Turn on the devices.
5. On the remote. LG Go to Settings. → Sound. → Output sound and select Optical.
6. In the soundbar settings (if any), select the Optical signal source.

If there is no sound or if it is interrupted:

• 🔍 Check the integrity of the cable (optical cables are sensitive to bending).
• 🎵 Make sure the TV transmits sound in a format PCM Dolby Digital (in the settings) LG It can be a digital sound out option).
• 🔄 Try restarting both devices.

In some models LG (for example, series UK6300 Or NanoCell, the optical output is turned off by default, to activate it:

Settings → Sound → Additional → Digital audio output (Optical) → On.

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If after connecting through an optical cable, the sound is delayed, try the settings of the TV. LG disable audio processing (set the Sound Mode option on Standard or PCM).

4. Method 3: Connecting through AUX (3.5 mm) simple but limited

AUX-Connection (via a 3.5mm connector) is an analogue audio transmission method that is suitable for most devices, but has two significant drawbacks:

• 🔊 The sound quality is lower than with digital connectivity (no multichannel audio support).
• 🎚️ Noise levels are higher, especially on long cables.

Instructions for connection:

1. Connect one end of the 3.5mm audio cable to the Audio Out or Headphone Out connector on your TV LG.
2. Put the other end in the port. AUX In on the Xiaomi soundbar.
3. Turn on both devices.
4. On the remote. LG Go to Settings. → Sound. → Select Audio Out (Variable) or Fixed.
5. On the soundbar, select the source. AUX (It is usually switched by the Source or Input button).

If the sound is too quiet or distorted:

• 🔊 Check the volume level on the TV – when connecting through AUX It should be at least 70-80%.
• 🔧 Try using a cable with gilded connectors (they are less susceptible to oxidation).
• 🔄 Make sure that in the settings LG No Night Mode or Voice Clarity mode is activated, which can make the sound worse.

⚠️ Attention: On TVs LG OLED series CX/GX newer connector 3.5 In this case, use an adapter with Optical or HDMI on AUX (But the sound quality will get worse).

5. Method 4: Wireless connection via Bluetooth

Bluetooth connection is convenient for the absence of wires, but has its own nuances:

• 🎵 Sound latency can reach 100-300 ms, which is noticeable when watching movies.
• 🔋 Sound quality depends on the Bluetooth version (5.0 and higher) to support the aptX codec, which reduces latency).
• 📶 The range is limited to 10 meters without obstacles.

How to connect Xiaomi soundbar to LG Bluetooth:

1. Turn on the soundbar and put it in pairing mode (usually hold the Bluetooth or Pair button for 3-5 seconds until the indicator flashes).
2. On the remote. LG press Settings → Sound. → Sound output → Bluetooth.
3. Select Add Device and find your soundbar in the list (the name will be Mi type). Soundbar_XXXX or Redmi Audio).
4. Confirm the pairing on both devices.
5. In the sound settings LG Install Bluetooth as the main exit.

If the sound is interrupted or delayed:

• 📱 Make sure there are no obstacles between the TV and the soundbar (walls, furniture).
• 🔄 Reboot both devices and re-pair the pairing.
• 🎵 In the soundbar settings (if any), select Low Latency mode (low latency).
• 📵 Disable other Bluetooth devices nearby (earphones, speakers) that may cause interference.

On TVs. LG From webOS 5.0 and higher (2020 and later models) the aptX Low Latency codec is supported, which reduces latency to 40–60 ms:

Settings → Sound → Additional → Bluetooth Sound Quality → AptX LL

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Bluetooth is for music, but not for movies. If you want to synchronize sound and image, use it. HDMI ARC optical-cable.

6.Tune the sound after connection

After successfully connecting Xiaomi soundbar to TV LG You need to adjust the sound settings for optimal playback, which is especially important if you're using multi-channel formats (Dolby Digital, DTS) or plug in a subwoofer.

The main settings on the TV LG:

• 🎚️ Volume level: In the menu Settings → Sound. → Additionally, turn off Automatic Volume Control (it can distort the sound).
• 🎵 Sound mode: Select Cinema or Game for movies and games respectively. Standard mode is suitable for normal viewing.
• 🔊 Output format: If you use HDMI ARC or Optical, install Bitstream (to transmit original sound) or PCM (If the soundbar does not support decoding).

Settings on the Xiaomi soundbar:

• 🎛️ Equalizer: In the Mi Home app or on the soundbar console, select Preset Movie or Music depending on the content.

For soundbar models with Dolby Atmos support (e.g. Xiaomi Soundbar) 3.1ch) recommended:

Tv settings LG → Sound. → Sound output → HDMI ARC → Audio format: Auto (or Dolby Digital)+)


Soundbar settings → Sound mode: Dolby Atmos (if available)

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If the sound seems too flat after setting, check if it is activated on the TV. LG regime AI Sound or Virtual Surround: These features can conflict with soundbar processing, especially if it already has built-in surround effects.

7. Solving common problems

Even with the right connection, you can have problems with sound, and we've collected the most common errors and ways to fix them.

If the Xiaomi soundbar is connected by HDMI ARC, But the sound is only through the TV:

1. Check what's in the settings. LG in the Sound section → Sound output selected HDMI ARC, Not the internal dynamics.
2. Make sure the cable supports ARC (not HDMI-cables are the same!).
3. Update your TV and soundbar firmware to the latest version.

For models LG OLED (for example, C1, C2) with eARC problems:

Settings → Sound → HDMI ARC Mode → On.


Settings → General → Convenience → Simplink → Included.

8. Frequently Asked Questions (FAQ)