Integrating external acoustics into a home theater is a logical step for any modern TV owner, especially if you purchased a model from Xiaomi with a quality screen but standard sound. The combination of equipment from different brands, such as the Mi TV and the Samsung soundbar, often raises questions among users because of the differences in interfaces and data protocols. However, modern standards HDMI and Bluetooth make this process as simple as possible if you know what menu to go to.
In this article, we will take a look at all the switching options available, from wired high-speed interfaces to wireless connections. Sound quality is directly dependent on the method of connection chosen, so it is important to understand the difference between analog and digital signals. We will look at the nuances of ARC and eARC tuning, which allow you to control the soundbar volume from the remote of the TV, which greatly improves the comfort of use.
And don't ignore the possibility of using optical cable, which is still one of the most stable ways to transmit audio streams without delay, and also consider wireless connection, which is ideal for listening to music, but can have limitations when watching dynamic movies, and the right configuration will allow you to unleash the full potential of your audio system.
Preparation of equipment and choice of interface
Before you start physical manipulation, you need to look at the back and side panels of your devices. On a Xiaomi TV (be it Mi TV Stick, Mi Box or built-in Android TV) and on a Samsung soundbar, ports can be arranged differently. The key is the presence of an HDMI ARC or HDMI eARC port, which is usually marked with a special inscription next to the connector, and this port is responsible for returning audio stream and synchronizing control.
If your soundbar supports the latest sound formats, such as Dolby Atmos or DTS:X, using a high-end HDMI cable (High Speed) becomes a must. Older cables may not miss enough bandwidth, resulting in no sound or image artifacts. Make sure the cable length matches the distance between devices so as not to create unnecessary tension.
In the event of absence HDMI-Optical Out is a digital interface that transmits sound without loss of quality, but does not support volume control from the TV remote without additional settings of IR repeaters. Also check for Bluetooth modules if you plan on wireless connectivity, although for a stationary home theater, this isn’t always the best choice due to possible audio compression.
Connection via HDMI ARC and eARC
The most efficient way to connect is to use the HDMI ARC (Audio Return Channel) interface, which allows you to transmit sound from the TV to the soundbar and, more importantly, to transmit control commands (on, off, volume control) in the opposite direction. First, connect one end of the HDMI cable to the HDMI port (ARC) on the Xiaomi TV, and the second to the HDMI OUT port (TV-ARC) on the Samsung soundbar.
After you physically connect, turn on both devices. A Mi TV running Android TV should automatically recognize the new audio system. If that doesn't happen, you'll need to manually change your output settings. Go to Settings menu, select Sound section, and then find Output or Audio System. From the list of available devices, select your Samsung soundbar or HDMI ARC option.
☑️ Connection check HDMI ARC
An important aspect is activating the CEC (Consumer Electronics Control) function, which in Xiaomi TVs is often called Mi Remote or simply CEC. Without the CEC function on, the TV remote will not control the soundbar volume. Find the external device control point in the system settings and make sure the switch is activated. This will allow the system to automatically switch the soundbar when the soundbar is turned on.
What if there is no sound through HDMI?
Use of Optical Cable (S/PDIF)
Optical cable (Toslink) remains the “gold standard” for digital audio transmission, especially if your Samsung soundbar or Xiaomi TV do not have HDMI ports with ARC support. The main advantage of this method is full electroplating, which eliminates the appearance of background noise and hum characteristic of analog connections.
To connect, insert one end of the cable into the Digital Audio Out (Optical) port on your TV and the other into Digital Audio In on the soundbar. Notice the safety caps at the ends of the cable: they need to be removed immediately before insertion, as they prevent contamination of the optics. Once connected, select the D.In or Optical source on the soundbar remote.
In the settings of the Xiaomi TV, you need to force the output to the optical port. Go to Settings -> Sound -> Digital output. Here you will see the option to change the format. For maximum compatibility with older soundbar models, you should choose PCM, but for surround sound in movies you will need Dolby Digital or Auto mode.
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The optical cable doesn't transmit video, only sound. If you connect the set-top box to the soundbar and the soundbar to the TV, make sure the video signal passes through the soundbar or use a separate HDMI for the video.
Wireless connection via Bluetooth
Wireless Bluetooth is the easiest way to install, as it doesn’t require cables to be laid. However, it’s worth considering that Bluetooth has limited bandwidth compared to HDMI. This means high-resolution codecs like TrueHD or DTS-HD Master Audio won’t be transmitted and the sound will be compressed. For music and television, this is often enough, but for moviegoers it can be a drawback.
To pair, turn on the Samsung soundbar and go to pairing mode (usually the Source or Bluetooth button on the remote). On the Xiaomi TV, open Settings -> Remote and Accessories (or Bluetooth). Press Add Accessory and wait for the name of your speaker system to appear in the list. Select it to connect.
With Bluetooth, there is a slight lip-sync error. Modern Mi TVs have a delay compensation feature, but it doesn't always work perfectly. If you notice the actors' lips and sound being de-synchronized, try switching the soundbar to Video or Game mode if this option is available, as it reduces buffering.
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Bluetooth is music-friendly, but HDMI ARC is preferred for movies because of its multi-channel support and lack of latency.
Set up sound parameters in Android TV
Once you've successfully connected physically, it's critical that you set up the software part correctly. In the Android TV operating system that Xiaomi TVs are based on, there's a lot of options for sound. Go to Settings -> Sound -> Additional settings. Here's the important Digital format setting. If it's installed in Auto, the TV decides which format to send, but sometimes it leads to errors.
If you watch TV on air, choose PCM. For streaming services (Netflix, YouTube) and Blu-ray discs, you should leave Auto or choose Dolby Digital. Also, the Auto Low Latency option is often found on this menu, enabling this feature can improve sync, but sometimes causes clicks when you switch apps.
Special attention should be paid to the equalizer and sound profiles. Mi TVs often have preset modes: Standard, Movie, Sport. When connecting external acoustics, Samsung is best to install a Standard or Off profile on the TV itself, so as not to distort the signal, which will then be processed by a more powerful soundbar processor.
| Setup parameter | Recommended value | What is used for |
|---|---|---|
| Digital exit | Auto / Dolby Digital | Transmission of surround sound 5.1 |
| PCM format | Turned off (if you have a choice) | Prevents Downmix in Stereo |
| CEC management | Included. | Controlling the soundbar from the TV remote |
| Sound delay | Auto or 0 ms. | Synchronization of images and audio |
Typical Problems and Conflicts
Even with the right connection, there can be situations where the sound is absent or unstable. One of the most common problems is the conflict of HDMI-CEC protocols. If the Xiaomi TV spontaneously turns off the soundbar or vice versa, try turning off the CEC function in the settings of one of the devices (usually in the "General" or "System"). This will break the control communication, but leave the audio transmission.
If there is a sound but it is quiet or distorted, check the balance and amplification settings. Some Samsung soundbar models have a Night Mode feature that dynamically compresses the volume range. Make sure it is not turned on randomly, as this makes quiet sounds louder and louder ones quieter, which can be perceived as distortion.
The remote problem
If you lose your signal completely after upgrading your TV firmware, reset your audio settings to factory. Sometimes newer versions of Android TV change their audio output priorities. It's also helpful to completely shut down both devices (plug out of the socket) for 1-2 minutes to reset the cache of HDMI controllers.
⚠️ Attention: Never plug an optical cable with force. The connector is very brittle, and under excessive pressure, the internal glass filament may burst, making the cable inoperable.
⚠️ Attention: When in use HDMI Make sure the TV and soundbar are connected to the same electrical grid or have a reliable grounding.The potential difference can cause unpleasant hums in the speakers or even damage to the ports.