How to transmit sound from the TV to the home theater HDMI Xiaomi: Full instructions with tips

Why? HDMI — Best way to transmit sound to a home theater

Modern Xiaomi TVs (series Mi) TV A2, P1, Q2 and others) support sound transmission through HDMI ARC/eARC — technology that allows you to send audio from your TV to your receiver or soundbar without additional cables, which not only makes it easier to connect, but also guarantees maximum sound quality (up to Dolby Atmos and the sound bar). DTS:X), What you can’t do with optical output or Bluetooth.

However, many users face problems: audio is not transmitted, there are delays or TV “can’t see” the home theater, the reasons are due to incorrect settings, outdated firmware or incompatibility of equipment. HDMI ARC We'll also solve common mistakes if you have a Xiaomi TV and a home theater (or soundbar) with support. HDMI, You will find a step-by-step instruction for your model here.

Before you start, check:

• 🔌 Is there a TV port on yours? HDMI ARC/eARC (usually signed «ARC» or»).
• 🎵 Does your home theater or soundbar support entry? HDMI ARC.
• 🔄 Do you use a cable? HDMI 2.1 (Recommended for eARC and high-quality sound).

What cables and connectors are needed to connect

The choice of cable and connectors will determine whether you get multi-channel audio or just stereo.

1. HDMI ARC vs HDMI eARC

• 🔹 HDMI ARC (Audio Return Channel - transmits stereo or compressed 5.1 (like Dolby Digital.
• 🔹 HDMI eARC (Enhanced ARC) — Supports uncompressed Dolby TrueHD, DTS-HD Master Audio and Atmos. Requires cable HDMI 2.1 and compatible devices.

2 Which cable to choose

⚠️ Note: If your Xiaomi TV is released before 2020, it will likely only support the same. HDMI ARC. eARC will require a firmware update or cable replacement.

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If you're not sure about the version HDMI-The port, see the markings on the TV or in the instructions. eARC port is usually signed as "HDMI eARC/ARC" or 🔊→📺.

The sound is then adjusted through HDMI ARC/eARC Xiaomi TV

Now let's get to the practice. The instruction is suitable for all Xiaomi TVs on Android. TV (PatchWall. if you have another firmware (e.g. Google) TV On new models, the steps may be slightly different.

Step 1. Connect the cable.

• 🔌 Connect one end. HDMI-port-wire HDMI ARC/eARC TV-wise.
• 🎵 Put the other end in the connector. HDMI ARC home theater.
• 🔄 Make sure that both devices are on.

Step 2. Set up the TV.

1. Open Settings → Sound.
2. Select the sound output → HDMI ARC (or eARC, if supported by).
3. Enable the Control option HDMI (CEC) — This will allow you to control the volume of the cinema from the TV remote.
4. In the Sound Format section, select Auto (for eARC) or Dolby Digital (for eARC). ARC).

Step 3: Set up a home theater

• 🔊 On the receiver or soundbar, select the source of the signal HDMI ARC.
• 🎛️ In the sound menu, activate the mode ARC or TV Audio.
• 🔄 Restart both devices if no sound appears.

Problem Solving: The sound is not coming or is interrupted

If the sound is not available after the connection or is not working correctly, check these points:

1. No sound at all.

• 🔌 Check the cable: Try another HDMI (High Speed Certified).
• 🔊 TV settings: Make sure that in Settings → Sound. → Sound output selected HDMI ARC, Not built-in speakers.
• 🔄 Reboot: Turn off power on both devices for 1 minute, then turn on again.

2.There is a sound, but with a delay (not synchronized with the video)

• 🎵 In the TV settings, try changing the sound format from Auto to Auto. PCM (If the delay is still there, return it).
• 🔧 Software Update: Check the relevance of firmware on TV and cinema.
• 📶 Interference: If you use 5GHz Wi-Fi, temporarily turn it off – sometimes it interferes with your Wi-Fi. HDMI ARC.

3.The sound is interrupted or distorted

• 🔌 Cable: Replace with HDMI 2.1 (even if you have a ARC, A bad cable can be the reason).
• 🔊 Bitrate: In the settings of the cinema, limit the maximum bitrate to 16 bit/48 keto.
• 🔄 CEC: Turn it off and turn it on again. HDMI-CEC both-device.

⚠️ Attention: On the TVs Xiaomi Mi TV 4A and 4C (2018-2019) There is a bug with HDMI ARC after upgrading to Android TV 9.Solution: Reset the sound settings to factory (Settings) → System system → Reset → Reset the sound settings).

How to check if it works HDMI eARC on Xiaomi TV

If you want to make sure your Xiaomi TV does transmit sound over eARC (rather than the regular one) ARC), do the following:

Method 1: Through TV settings

1. Open the Settings. → Devices and accessories → HDMI.
2. Select the port to which the cinema is connected.
3. Look at the audio format line, if it says eARC, it works.

Method 2: Test content

• 🎬 Enable a movie with Dolby Atmos (for example, on Netflix or Disney)+).
• 🔊 On the cinema remote, check which sound format is displayed (should be Atmos or TrueHD).
• 📊 If it sounds like Dolby Digital, it's like Dolby Digital.+, eARC is inactive (either the cable does not support or the settings are down).

On Xiaomi Mi TVs TV Q2 and P1 2022 eARC is activated automatically when a compatible device is connected, but requires manual audio format selection in settings.

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If your TV supports eARC, but the sound is in compressed format (Dolby Digital instead of TrueHD), the problem is most likely the cable or receiver settings, not the TV.

Alternative methods of sound transmission (if) HDMI doesn't work)

If you tune in HDMI ARC/eARC They're inferior in quality, but they'll help you get the sound:

1. Optical cable (TOSLINK)

• 🎵 Supports Dolby Digital 5.1 and DTS, But not Atmos or TrueHD.
• 🔌 Connects to the Optical Out port on TV and the corresponding cinema entrance.
• ⚡ Does not transmit video and requires a separate HDMI picture-wise.

2. Bluetooth

• 📶 Suitable for soundbars with Bluetooth 5.0+ (For example, Xiaomi Soundbar).
• 🎵 Quality is limited AAC AptX (no multi-channel sound).
• ⏱️ Possible sound delays (synchronize manually in TV settings).

AUX (3.5 mm)

• 🔌 The easiest way, but only for stereo.
• 🎧 Connect the cable from the Audio Out output to the TV entrance AUX IN cinematographer.
• ⚠️ On some Xiaomi models, the 3.5 mm connector is turned off when active. HDMI ARC.

⚠️ Note: If you use optical cable, in the settings of TV (Sound) → Output of sound) select Optical or S/PDIF. When connecting via Bluetooth, turn off HDMI ARC, avoiding conflict.

Update the firmware to fix problems with HDMI ARC

On Xiaomi TVs older than 2020, sometimes there are bugs with the HDMI ARC After the updates, the solution is to install the latest firmware:

How to update the software to Xiaomi TV

1. Open Settings → About TV → Update system.
2. Click Check for updates.
3. If a new version is available, confirm the installation.
4. After the update, reset the sound settings (Settings) → System system → Reset → Reset the sound settings).

If the update does not help

• 🔄 Try to revert to the previous version of the software (instruction below).
• 📥 Install the firmware manually through USB (Files are taken from the official Xiaomi website).
• 🔧 Reset the TV to factory settings (Settings) → System system → Reset → Total reset).

💡 Tip: After the update, check the work HDMI-CEC — Sometimes it turns off automatically. Turn it back on in Settings. → Devices and accessories → HDMI-CEC.

FAQ: Frequent questions about connecting sound through HDMI