Owners of Xiaomi TVs (series Mi) TV, Redmi TV, Mi TV A et al.) often encounter a situation where the embedded audio program automatically starts when the TV is turned on or the channels are switched on, a feature designed to improve the sound, does not always work correctly: It can distort the voice, add unnecessary effects, or simply interfere with external acoustics. In some cases, the audio program even blocks the output of sound to the audio. HDMI ARC Bluetooth speakers, which makes turning it off critically important.
The problem is complicated by the fact that in different versions of the firmware PatchWall or Google TV The path to audio settings may vary, and some options are hidden in the engineering menu, and in this article we will explore all the current ways to disable audio programs, from standard settings to hidden commands for power users. You will also learn how to return the factory sound settings if previous manipulations have led to a deterioration in the quality of the sound.
Why is the audio program on Xiaomi TV may interfere?
Built-in audio program in Xiaomi TVs (most often Dolby Audio, DTS Virtual:X or Mi Sound, which is proprietary, is designed to optimize sound depending on the content, but in practice, it often creates problems:
- π Voice distortion is especially noticeable in movies and news broadcasts where speech becomes "metallic" or too loud compared to background music.
- π΅ Unnecessary effects β artificially amplifying basses or creating a βvolumeβ sound can spoil the original soundtrack (for example, in classical music or podcasts).
- π Conflict with external devices β the program can block the transmission of sound to the soundbar through HDMI ARC or Optical, or reset settings when connecting Bluetooth headset.
- πΆ Sound delay β audio processing adds lag of up to 100β300ms, which is critical for gaming or watching subtitled videos.
In addition, the audio program consumes additional CPU resources that on budget models (for example, Redmi). TV A55) Disabling unnecessary audio effects not only improves sound, but also unloads the system.
Method 1: Disconnect via standard sound settings
On most Xiaomi models (2019 and later), the audio program can be deactivated through the main menu. TV:
- On the remote, press the button Settings (cogs) or Menu.
- Go to the Sound section. β Sound settings (or Sound) β Sound Settings on English firmware).
- Find the option of Sound Effects or Dolby Audio.
- Select the value Off. (Off).
- Save the changes and restart the TV (optional).
On some models (e.g., Mi) TV Q1 75) the path may be different: Settings β The device β Sound. β Sound modes β Turn off all effects.
Make sure that in the sound settings all effects are turned off.|
Check the sound through the built-in speakers - should become "flat"|
Connect an external device (such as a soundbar) and check the sound transmission|
Restart the TV if the effects return after the shutdown-->
If the audio effects option is missing or inactive, it may mean:
- π Your model uses hardware acceleration of sound (for example, a MediaTek chip). MT9611), and software shutdown is not possible.
- π¦ TV firmware is outdated - an update is required (see the section on firmware).
- π The option is hidden by the manufacturer (the solution is method 3 or 4).
Method 2: Resetting sound settings to factory
If the audio program is on at the system level and does not turn off through the menu, resetting the audio settings will help, this method does not affect other settings of the TV (Wi-Fi, applications, etc.), but will return all audio presets to the βout of the boxβ state.
Instructions:
- Open Settings β Support β Resetting settings.
- Select Reset sound settings (or Reset sound settings).
- Confirm the action with a password (by default 0000 or 1234, if you have not changed it).
- After the reboot, check the sound β all effects should be turned off.
What to do if there is no option to βReset the sound settingsβ?
It's important! On Android models. TV 10+ (Like Mi. TV P1) sound reset may also reset settings HDMI CEC and ARC. After the procedure, reconfigure the connection to the soundbar or receiver.
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If the program is activated again after resetting the audio, check the Settings. β Annexes β System applications β AudioService. There may be an AutoRun option that needs to be turned off.
Method 3: Disconnect via the engineering menu (for experienced)
If standard methods fail, the audio program can be deactivated via an engineering menu (also known as Service Menu or Factory Menu) that is suitable for models on Amlogic chips (e.g. Mi Menu). TV 4S) and MediaTek (e.g. Redmi) TV X Series).
Warning: Incorrect changes to the engineering menu can cause the TV to crash. Follow the instructions carefully!
β οΈ Warning: Before entering the engineering menu, disconnect the TV from the Internet (pull the cable or turn off Wi-Fi) This will prevent automatic firmware updates that may block access to hidden settings.
Instructions for Amlogic chips:
- Turn on the TV and press sequentially on the remote: Menu β 1147 β Menu (some models may have different combinations, such as Menu) β 1969 β Menu).
- In the menu, look for the Audio or Sound section.
- Scroll to Dolby Enable or Audio Post Process and set the Disable value.
- Save the changes (usually by the Exit or Menu button) and restart the TV.
For MediaTek chips (e.g., Mi) TV Q1):
- On the remote, hold the Menu. + Volume Down 5 seconds before the menu appears.
- Go to Factory. β Audio Setting.
- Turn off the options. DSP Enable and Virtual Surround.
- Go back to the main menu and select Reboot.
| Model TV set | Combination for entry | Audio section | Option to shut down |
|---|---|---|---|
| Mi TV 4S/4A (Amlogic) | Menu β 1147 β Menu | Audio DRC | Disable DRC |
| Redmi TV X55/X65 (MediaTek) | Menu + Volume Down (5 seconds) | Factory β Audio | DSP Enable = Off |
| Mi TV Q1/Q2 (Google TV) | Settings β About β Click 5 times on "Models" | Audio Tuning | Post Processing = None |
If after changes in the engineering menu, the TV stopped turning on or sound artifacts appeared, perform a complete reset through the button on the case (hold Power). + Volume Down 10 seconds).
Method 4: Disconnect via ADB (for advanced users)
If none of the previous methods worked, the Android Debug Bridge option remains (ADB). This requires connecting the TV to the computer, but gives you full control over system settings.
What you need:
- π₯οΈ Computer installed ADB Tools.
- π USB-cable (for models with port) USB-A or USB-C).
- π± Included debugging by USB on television (see below).
Steps:
- On the TV, turn on the debugging. USB: Settings β On TV. β Click 7 times on "Build Number" (you will be notified "you became a developer"). β For developers β Debugging by USB = On.
- Connect the TV to the computer with a cable.
- Open the command prompt (Windows) or terminal (macOS/Linux) and type: adb devices Make sure the device is defined.
- Execute the command to disable audio processing: adb shell settings put global audio_effects_enabled 0
- Reboot TV: Adb shell reboot
For models with Dolby Audio, an additional command may be required:
adb shell pm disable-user --user 0 com.dolby.daxappβ οΈ Note: Disabling system applications through ADB If there are errors after manipulation (for example, the audio menu is missing), return the changes with the command: adb shell pm enable com.dolby.daxapp
If ADB-The commands did not work, try an alternative method through the am:
adb shell am start -n com.android.tv.settings/.sound.SoundSettingsActivityThis command will open a hidden audio menu where there may be additional options.
Method 5: Update or roll back firmware
Sometimes the audio program becomes unmanageable due to firmware bugs, such as PatchWall 2.5-2.7, where the audio settings were reset after each TV turn on, and in such cases, the software update or rollback will help.
How to update firmware:
- Go to Settings β About TV β System Update.
- Click Check for updates.
- If a new version is available, install it (the TV will restart automatically).
How to roll back firmware:
The rollback is only possible if you have previously saved a backup copy or if the manufacturer provides archival versions of the software. For Xiaomi, there are no official rollback tools, but you can try:
- Download firmware from world forums (for example, for Mi) TV 4X).
- Unpack. ZIP-flash-stick (FAT32).
- Insert the flash drive in the TV and in the engineering menu select Update via USB.
| PatchWall version | Famous sound bugs | Recommended action |
|---|---|---|
| 1.0β2.0 | Audio program is switched on accidentally when switching channels | Update to 2.5+ or disable through the engineering menu |
| 2.5β2.7 | The sound settings are reset after rebooting | Update to 3.0 or use ADB |
| 3.0β4.0 (Google TV) | Dolby Audio is blocking HDMI ARC | Disable in Settings β Sound. β Dolby Audio = Off. |
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Before updating the firmware, be sure to check user reviews on forums (for example, 4PDA or XDA). Some updates can make sound worse or add new bugs!
What do you do if nothing helps?
If all of these methods fail, the problem may be at the hardware level.
- π§ Check the connections: inspect the connectors HDMI ARC, Optical and 3.5mm for damage, sometimes oxidation of contacts leads to activation of embedded audio effects.
- π External device test: connect the TV to another soundbar or speakers. If the sound is clean, the problem is your acoustics, not your TV.
- π‘ Reset to factory: perform a full reset (Settings) β Support β Reset to factory), but do not restore settings from backup β this can return problematic settings.
- π οΈ Contact the service: if the TV is guaranteed, contact the official Xiaomi service. DSP (signal-processor).
On models with hardware Dolby Audio (for example, Mi). TV Q1 75 with a chip MT9611) So, you can't software-disable the effects -- the sound always goes through the Dolby processor:
- Use externally DAC (a digital-to-analog converter connected via Optical or HDMI.
- Set up a soundbar or receiver to bypass processing (the Direct or Pure Audio option in the device menu).