How to turn it on HD Xiaomi sound: full instructions for smartphones and TVs

What is it? HD Sound and Why It’s Not Default on Xiaomi

You have bought a new Xiaomi – be it a smartphone Redmi Note 13 Pro+ Mi TV or TV TV Q2 75" — but the sound leaves much to be desired? — The reason is often not hardware, but software constraints. The manufacturer defaults to disable advanced audio codecs to save battery power or avoid compatibility issues with cheap headphones. But if you have quality acoustics or headphones with support LDAC, AptX or Dolby Atmos, Inclusion HD-The sound can radically change the listening experience.

It is important to understand the term "HD "Sound" means marketing audio, which means the transmission of audio with minimal loss of quality, usually through high-resolution Bluetooth codecs (up to the end of the standard). 96 keto/24 bits or digital outputs (e.g, USB-C or HDMI ARC). On Xiaomi smartphones, this is implemented through the developer’s settings and special modes in the MIUI, a on TVs – through audio profiles in Settings → Sound.

The problem is that even flagship models (like the Xiaomi 14 Ultra) don’t always automatically switch to the best codec available. Sometimes manual adjustment is required – especially if you’re using wireless headphones from other brands (Sony). WH-1000XM5, Next, we will discuss how to get your Xiaomi device to give the maximum sound quality.

Equipment Check: Does Your Device Support HD sound

Before digging into the settings, make sure your technique is capable of reproducing. HD-Here are the key points:

• 📱 Xiaomi smartphones: All models on Snapdragon 8 Gen 2/3 (for example, Xiaomi 13T Pro, POCO F6 Pros support LDAC AptX Adaptive: Budget chips (Snapdragon) 4/6 series are often limited SBC or AAC.
• 📺 Xiaomi TVs: Only models with a processor MT9650 and above (e.g. Mi) TV Q2 2023, Xiaomi TV A Pro) is supported by Dolby Atmos and DTS:X.
• 🎧 Headphones/columns: Bluetooth requires support for at least one codec: LDAC (up to 990 kbit/s), AptX HD (576 kbit/s) or LHDC (900 kbit / s. Wired headphones with impedance 32 ohms and above will unlock the potential of the built-in DAC.

To check the current codec on your smartphone:

1. Put your headphones on Bluetooth.
2. Open Settings → Connected devices → Settings gear next to the headphones → Sound quality.
3. If only SBC or AAC — Your device or headphones do not support HD-codecs.

Critical point: even if your smartphone supports LDAC, The headphones are not, the sound will automatically drop to the top. SBC. It's called the bottleneck effect. For example, Redmi Buds 4 Pro doesn't support it. LDAC, Xiaomi 13 Pro is currently broadcasting it.

Inclusion HD sound on Xiaomi smartphones (MIUI 14/15)

If your equipment is compatible, follow this instruction. MIUI 14 and newer path to settings has changed - now HD-Codecs are activated through the developer menu, not through standard Bluetooth settings.

Step 1: Activate the Developer Mode

Go to Settings. → The phone. → Version. MIUI and tap it 7 times until the "You're a developer" notification appears. Then go back to the main settings menu and find a new Developer section.

Step 2: Choosing a Bluetooth codec

In the developer menu, scroll to the Network block and find:

• Bluetooth codec → choose LDAC (Priority or AptX Adaptive.
• Bluetooth sound quality → set 990 kbit/s (for the LDAC) 576 kbit/s (for AptX) HD).
• Absolute volume of Bluetooth → Turn off to avoid distortion.

Step 3: Optimizing System Sounds

To improve sound through speakers:

1. Go to Settings → Sound and vibration → Sound quality.
2. Activate the Sound Amplifier and the Equalizer (select the preset "Bases" or "Jazz").
3. Enable Dolby Atmos (available on flagships) and select Movie or Music profile.

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After inclusion LDAC The sound starts to "break", reduce the bitrate to 660 kbps - this will eliminate the lags without severe loss of quality.

Setting up HD The sound on Xiaomi TVs (Mi) TV, Redmi TV)

Xiaomi TVs with PatchWall have hidden audio settings that allow you to enable sound processing in Dolby Digital Plus and Dolby Digital Plus formats. DTS HD. However, by default, these options are hidden or disabled.

Method 1: Using a standard menu

For models of 2022 and newer:

1. Open the Settings. → Sound. → Sound mode.
2. Choose Advanced (instead of Standard).
3. Activate Dolby Audio and DTS Virtual:X (if available).
4. In the Exit section HDMI ARC Install Auto (Passthrough).

Method 2: Hidden engineering settings

For older models (e.g., Mi) TV 4S 55' 2020):

1. On the remote, press sequentially: Menu → Settings → All settings → The device → About the device.
2. Tap 5 times on the item Model to open the engineering menu.
3. Go to Audio Settings → HDMI Audio Format and select Auto (HD).

Important: if you connect the soundbar through HDMI ARC, Make sure your TV settings are on Passthrough, otherwise the sound will convert to stereo and all Dolby Atmos effects will be lost.

Problem Solving: The sound is interrupted or distorted

After inclusion HD-In the case of codecs, you may encounter two typical problems:

1. The sound is "breaking" (especially on the LDAC 990 kbit / s – this is due to overloading of the Bluetooth channel.
2. Extraneous noise (hisping, crackling) - usually occurs with high impedance of headphones (>100 Ohms) without external amplifier.

Here's how to fix it:

• 🔊 For Bluetooth: Reduce bitrate LDAC Up to 660 kbps or 441 kbps. Turn off power saving for Bluetooth in Settings → Battery → Battery optimization: Make sure there are no physical barriers between the device and the headphones (walls, furniture, etc).
• 🎛️ For wired headphones: Turn on the sound amplifier in Settings → Sound. Use the adapter. USB-C → 3.5 mm with external DAC (e.g. iBasso) DC05). Turn off all effects in the equalizer – they can distort the signal.

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If your headphones support LHDC, But it's not on the codec list, update it. MIUI last-minute. LHDC added only in MIUI 14.0.5 and newer.

⚠️ Note: On some Xiaomi models (e.g, POCO X5 Pro) upon activation LDAC You may lose your microphone in call mode, so switch to AptX or wait for a firmware update.

Advanced Tricks: How to Make the Most of Sound

If the standard settings don’t suit you, here are some non-obvious ways to improve the sound:

1. Use of third-party firmware

Firmware like Pixel Experience or LineageOS often have more flexible audio settings than stock ones. MIUI. For example, they allow:

• Install ViPER4Android (sound-processor with convolution filter support).
• Activate UAPP (USB Audio Player Pro) to bypass built-in DAC.
• Set up an audio buffer to reduce lag.

But be careful: unofficial firmware can take away your warranty and cause Bluetooth issues.

2. Connection through USB-C

If you have headphones with USB-C Or an external DAC (like DragonFly Red), connect them directly to your smartphone, which bypasses Bluetooth limitations and allows you to transmit sound in a format. PCM 32-bit/384kHz. For that:

1. Enable USB debugging in the developer settings.
2. Connect the DAC through OTG-cable.
3. In a player app (e.g. Neutron Music Player) select USB Audio is the exit.

3.Setting up Dolby Atmos on the TV

For full-fledged Dolby Atmos on Xiaomi TV required:

• Source of content from Atmos (Netflix, Disney)+, 4K Blu-ray).
• HDMI 2.1 cable (for eARC).
• Soundbar or receiver with Atmos support (e.g. Xiaomi Soundbar Pro).

If the sound is not multi-channel, check:

• Netflix settings include Dolby Audio (in your user profile).
• On the TV, activated. HDMI Input Format → Enhanced.

Codec Comparison: Which to Choose for Your Tasks

Not all. HD-Codecs are equally useful. Here's a quick comparison with the guidelines for using codecs:

For most users, the best choice is:

• 🎵 Music: LDAC 660 kbps (balance of quality and stability).
• 🎮 Games: AptX Adaptive (Low Delay).
• 🎬 Cinema: LHDC (If supported, or Dolby Digital through HDMI.

⚠️ Headphones Xiaomi Buds 4 Pro and Redmi Buds 5 support LHDC, But only when connected to Xiaomi devices MIUI 14+. With other brands, they will work through AAC.

FAQ: Frequent questions on HD Xiaomi sound