Modern Xiaomi TVs running on Android TV offer users a wide range of multimedia features. One of the key features that owners pay attention to when watching movies in high resolution is support for advanced audio codecs. In particular, the acronym DTS HD is often found in the specifications of mid- and high-end models, raising questions from those who want to get the maximum sound quality.
Understanding how this technology works in the Xiaomi Mi TV or Redmi TV ecosystem unlocks the potential of embedded acoustics or external sound systems. It's not just a marketing term, but a specific audio coding standard that requires the right setup to properly transmit multichannel audio. If you plan to use the TV as a home theater media center, knowing the nuances of how DTS HD works will become critical.
In this article, we will discuss in detail the technical features of the format, how to activate it in the TV menu and how to solve common problems. You will learn why sound can disappear when switching sources and how to properly configure audio output through an optical port or HDMI ARC.
DTS HD Technology: The Essence of the Format and Its Advantages
Format DTS-HD It is a family of codecs developed by the company. DTS, Inc. for encoding digital sound, unlike standard audio. DTS, frequent DVD-disks and has a lossy compression, version with prefix HD For Xiaomi TVs, this means that it can decode high-quality audio directly with the processor’s built-in tools, without the need for external receivers for basic tasks.
The main advantage is that it supports multi-channel sound, including 7.1 configurations and even more complex circuits depending on the version of the codec. When you run a film with DTS-HD Master Audio support, the TV receives the original bit stream and converts it to an analog signal for speakers or transmits it digitally to an external system, which provides depth and detail that is not available with standard stereo codecs.
⚠️ Note: Not all Xiaomi TVs support full passthrough sound DTS HD Some budget versions can decode sound internally, but not transmit it in the original format through the HDMI ARC.
It is important to distinguish between the two main subtypes of technology you may encounter in the settings menu. The first is DTS-HD High Resolution Audio, which provides high quality but with some compression. The second is DTS-HD Master Audio, which is an exact bit copy of a studio master record. For a Xiaomi TV owner, having support for both formats guarantees compatibility with the vast majority of Blu-ray discs and digital copies of movies.
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For the best sound quality, use an HDMI cable of version 2.0 or higher, labeled High Speed, especially if you plan to transmit multichannel audio to an external receiver.
DTS support in the Xiaomi and Redmi model range
Xiaomi's policy regarding the licensing of audio codecs varies depending on the year of release of the device and its price segment. TV Q1, Mi TV 6 and more recent OLED-The panels are usually equipped with a full range of licenses, including: DTS Virtual:X and DTS-HD. This allows them to compete with the top solutions from Samsung and Sony in terms of audiophile performance.
However, in more affordable lines, such as Redmi TV or Mi TV Stick, the situation can be ambiguous: due to licensing fees, some manufacturers implement a software restriction or completely remove DTS support in certain regions. In such cases, the TV can automatically convert audio to PCM or AAC format, which reduces quality, but ensures compatibility. Checking the specification of a particular model before buying or updating the firmware is mandatory.
- 📺 Flagship Series: Full Support DTS-HD, DTS Virtual:X and Dolby Atmos, often with certification IMAX Enhanced.
- 📺 Mid-Segment: Support for Decoding DTS, There is a limited passthrough to external systems.
- 📺 Budget models: Often limited to stereo sound or require the use of external speakers through an app.
It is worth noting that the Android TV software installed on Xiaomi TVs plays a key role. System updates can both add support for new codecs and, in rare cases, cause license conflicts. Therefore, users often wonder why DTS sound disappeared after a firmware update. This is due to the fact that the audio processor system libraries can be replaced with versions with re-referenced regionally.
Instructions for activation and tuning of sound
To use the DTS HD capabilities in your Xiaomi TV, you need to configure the audio output correctly. By default, the system can choose an automatic mode that does not always work optimally with external sound panels or receivers. Manual setting allows you to force decoding or broadcasting of the signal.
Go to the main menu of the TV and select the settings section. You will need to find the item responsible for image and sound parameters. Depending on the version of the PatchWall shell or pure Android TV, the path may differ slightly, but the logic remains the same. You need to find the Sound section and then go to Additional Settings or Digital Output.
☑️ Setting up the output
There are several options available in the Digital Exit menu. To activate DTS HD, select Auto or Passthrough mode. Auto mode allows the TV to independently determine the capabilities of the connected device and choose the optimal format. If you use built-in speakers, make sure that the DTS Virtual:X audio enhancement is enabled in the settings, if this option is available in your model.
⚠️ Attention: When choosing a regime PCM sound DTS It's going to be decoded by the TV in stereo, and the multichannel effect is going to be lost when you transmit it to the old receiver. Always choose Bitstream or Passthrough for external systems.
If you use an optical output (S/PDIF), Remember its limitations. This interface does not support the transfer of formats in their original form, such as DTS-HD Master Audio, due to insufficient bandwidth, in which case the Xiaomi TV will automatically lower the quality to standard. DTS or Dolby Digital 5.1, Everything is better than stereo, but not native. HD-quality.
DTS HD and Dolby Atmos in the Xiaomi ecosystem
Xiaomi TV owners often face the dilemma of choosing between two of the leading surround sound technologies: DTS HD and Dolby Atmos. Both formats are aimed at creating immersive experiences, but use different approaches to coding and playback. Dolby Atmos is based on the concept of audio objects that can move in three-dimensional space, including height, which requires support from content providers such as Netflix or Disney+.
DTS HD technology, in turn, focuses on channel accuracy and high bitrate. It is often found on physical media (Blu-ray) and in files downloaded from the network. In Xiaomi TVs, the Dolby Atmos implementation is often software emulation unless a certified soundbar system is connected. DTS Virtual:X also works on the principle of virtualization, creating the illusion of height and depth using signal processing algorithms.
| Characteristics | DTS-HD Master Audio | Dolby Atmos |
|---|---|---|
| Type of compression | No loss (Lossless) | Loss-of-life (usually) |
| Maximum channels | Up to 8 channels (7.1) | Up to 128 objects of sound |
| Principal application | Blu-ray, local files | Streaming, cinemas |
| TV requirements | DTS decoder | Dolby + eARC license |
The choice between them depends on your content source. If you watch streaming video through built-in Xiaomi TV apps, Dolby Atmos will be more common due to support from streaming services. For a home media library with heavy files, MKV or ISO DTS HD remains the gold standard of quality. The ideal system should support both formats for versatility.
Why do some apps not have DTS?
Solving DTS Sound Problems on Android TV
Despite the stated support, Xiaomi TV users may face a situation where DTS sound is missing or is played with distortions.The most common reason is the lack of an operating system-level license for a specific region.In some countries, manufacturers are required to pay royalties for each DTS-decoder TV sold, resulting in a software-based feature shutdown.
Another common problem is when using third-party media players: a standard Mi Video player or built-in player may not be able to handle the passus of complex formats to external acoustics. In this case, it is recommended to install a specialized application such as VLC for Android or Kodi. These programs have their own built-in codecs and can programmatically decode DTS HD, sending out a ready PCM signal.
If the sound is gone after the system update, try resetting the sound to factory values. audio_policy.xml There may be errors that can be solved by simply restarting the audio service or completely resetting the TV. HDMI — High-resolution multichannel audio requires Ethernet-enabled cables and ARC.
⚠️ Note: Installing third-party codecs through system files (root rights) can cause your TV to run unstable or lose warranty. Use only verified apps from Google Play.
In cases where Xiaomi's built-in speakers can't produce multi-channel sound (which is logical, since they're stereo), the TV has to mix the signal. If you hear only a hiss or a whistle, it means Bitstream mode is on and the TV tries to send a digital DTS signal to analog speakers, which is impossible. Switch the output setting to PCM.
Using external audio systems with Xiaomi TV
To fully unlock the potential DTS HD Xiaomi's built-in acoustics are often not enough, even powerful speakers in thin cases can't create real surround sound. AV-Receiver is the most rational solution for home theater.
The best way to connect is to use an HDMI port (ARC/eARC) that allows you to transmit audio signals from the TV to the acoustics and control the volume with one remote. Make sure that the Xiaomi TV settings in Device Settings → Inputs activate CEC (in MI TV it can be called MI Control or HDMI Control), which will allow you to automatically switch the sound bar when you turn on the TV.
- 🔊 HDMI eARC: Provides transmission DTS-HD Dolby TrueHD without compression.
- 🔊 Optical cable (Toslink): Reliable option but limited by bandwidth (maximum) DTS 5.1, no HD).
- 🔊 Bluetooth: Not recommended for DTS HD Due to low capacity and delays.
When connected via Bluetooth, the sound quality will be significantly lower, because the protocol compresses the signal before transmission. For movies, this is critical, because the dynamics and detail of low frequencies are lost. So if your goal is DTS HD, use only wired HDMI connections or optics. The wireless subwoofers in Xiaomi's proprietary soundbars operate on their own protocol and do not affect the quality of the main signal from the TV.
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Cable connectivity via HDMI ARC/eARC is the only way to get real DTS HD sound on an external speaker system.