Many users who buy flagship or mid-budget Xiaomi smartphones do not even realize that their device has a powerful potential for playing audio. Standard settings often limit dynamic range and compress frequencies for the sake of battery power savings or simply by default. However, hiding in the depths of the system menu, the Hi-Fi audio feature can dramatically change the perception of music, podcasts and sounds in games.
To activate this mode, you don't have to be a professional sound engineer or have specialized equipment. It's enough to configure the software interface of your gadget. In this article, we will discuss in detail how to turn on high-resolution sound, which codecs to choose for wireless headphones and how to calibrate the equalizer for a specific model of the acoustic system.
It is worth noting that the quality of the final result depends on the accessories used. The built-in speakers of the smartphone will certainly become louder and cleaner, but the real Hi-Res Audio is revealed when you connect wired headphones with an impedance of less than 32 ohms or through a quality Bluetooth adapter with support for aptX HD and LDAC codecs.
Verification of hardware support and connection
Before you go to software settings, make sure your device is physically capable of handling high-quality audio streams. Most modern Redmi Note and Xiaomi Mi models come with a separate DAC (digital-to-analog converter) that takes on the audio decoding load by unloading the main processor.
If you plan to use a wired connection, make sure you use the original cable or a quality Type-C adapter at 3.5 mm. Cheap counterparts often do not support digital signal transmission, switching the smartphone to low quality mode.
Check the specifications of your model on the official website. Having the logo of Hi-Res Audio Wireless or Hi-Res Audio on the box or in the characteristics is a guarantee that the hardware is ready to work, otherwise software activation may not be available or will not give the expected effect.
- 🎧 Make sure the headphones maintain a sampling rate above 44.1 kHz.
- 🔌 When connecting wired, use adapters with support DAC.
- 📡 For Bluetooth, check the protocol version at least 5.0.
- 📱 Update your smartphone firmware to the latest stable version MIUI or hyperos.
📊 What type of connection do you use most often?
Wired headphones 3.5 mm
USB-C headphones
Bluetooth headphones
Built-in speakers
Activation of Hi-Fi mode in standard settings
The main switch for sound quality is located in the system settings menu, and the path to it may vary slightly depending on the version of the MIUI shell, but the logic remains the same. You need to go to the section for multimedia and sound effects.
Open Settings → Sound and Vibration → Sound Effects. Here you will find a Hi-Fi switch. In some regions or on global firmware, this item may be called Audio Effects or hidden inside the Sound Quality menu. Once the slider is activated, the system will alert you to a possible increase in power consumption.
Once the mode is on, the interface can suggest you choose the type of connected device: headphones, car stereo or external speakers. Choose the most suitable option, as this will affect the frequency allocation algorithms. Basic activation is complete, but fine tuning is required to maximize the result.
⚠️ Warning: Activating Hi-Fi mode may result in faster battery discharge, as DAC is in high power mode. It is recommended to turn off the function when listening to podcasts or in the background.
Set up equalizer and sound profiles
Xiaomi’s regular equalizer in the shell offers several preset profiles, but for Hi-Fi, they are often not enough. Deep tuning allows you to cut sharp high frequencies or add volume to low bass, which is especially true for genres like electronics or classics.
In the Settings menu → Sound and vibration → Equator you will see a frequency chart. Don't push all sliders to the maximum - this will lead to clipping (distortions), you better use the form of "light smile", slightly raising the extreme values, or select the profile "Flat" for accurate reproduction of the studio recording.
Secrets of equalizer setting
For vocals, slightly raise the range of 1kHz - 3kHz. For bass, work with frequencies up to 250Hz. Do not make sharp jumps between neighboring sliders, this creates a "porridge" in the sound.> Also worth paying attention to is the Dolby Atmos feature, if it's available on your device, which, when combined with Hi-Fi, creates a surround sound effect, but audiophiles often prefer to turn off Dolby post-processing to get "honest" sound without digital distortion. 🎼 Use the Pop profile for contemporary music with active vocals. 🎻 Classic Mode Expands Sound Stage for Orchestra Recordings. 🎸 Rock profile adds aggression to the middle frequencies. 🔇 Night mode compresses dynamic range for quiet listening. Bluetooth codecs and wireless sound Wireless connection imposes its limitations on the quality of data transmission. Standard codec. SBC, The default codec is very compressive, and to activate high quality over the air, you have to manually switch the codec to the developer menu. First, activate the developer mode: go to Settings. → About the phone and 7 times quickly click on the build number MIUI Version. Then, in the advanced settings, look for Developer's. Scroll down to Audio and select Bluetooth Audio Codec. → Additional settings → For developers → Bluetooth Audio Codec → Choose. LDAC / aptX HD Here you will be able to access the codecs aptX, aptX HD and LDAC (If they are supported by your smartphone and headphones). LDAC Sony allows you to transfer three times more data than standard Bluetooth, approaching the quality of wired CD-audio. Xiaomi’s regular player, although functional, does not always correctly process file formats such as: FLAC, DSD or ALAC. To fully unlock the potential of Hi-Fi, it is recommended to install a specialized audio player that can bypass the Android system mixer (Exclusive Mode). USB Audio Player PRO, Poweramp or Hiby Music have their own drivers for DAC. When using them, Xiaomi system equalizers can conflict with the player settings, so it is recommended to disable the built-in effects when using third-party software. USB-DAC through OTG-The cable is the third-party player who takes over the device, and this allows for bit-perfect accuracy when a digital signal is transmitted to the decoder without any changes from the operating system. FLAC Support Exclusive Mode Built-in Mi Music EQ Yes No Basic Poweramp Yes Yes (Hi-Res) Professional USB Audio PRO Yes Yes Minimum Hiby Music Yes Advanced Problem Solutions and frequent errors Despite the ease of setting up, users may encounter a number of problems. Often, after turning on Hi-Fi, the sound disappears completely or becomes quieter. This may indicate a driver conflict or incompatibility of the connected headset with the selected DAC mode. If you notice a crack or interruption of sound, try to reduce the bitrate in the phone's synchronization, sometimes it is not necessary to check the volume of the phone's "al audio." ⚠️ Attention: If the Hi-Fi activation starts to heat up the top of the case, immediately turn off the function. This may indicate that the DAC overheats when working with incompatible impedance headphones. In rare cases, a complete reset of the audio settings is required. This can be used for this. ADB-commands to reset the audio service, but the average user just restart the device in safe mode and check whether the problem persists without third-party applications. 💡Hi-Fi stability is 90% dependent on the quality of the cable used or the stability of the Bluetooth connection, not just on the software settings. Does activation of Hi-Fi affect battery life? Yes, high-resolution audio increases power consumption. DAC and amplifier work with a greater load, which can reduce battery life on the 5-10% When you're listening to music, why don't you hear it when you turn on Hi-Fi? Most often it's because the connected device doesn't support the format or codec you've chosen. SBC or AAC, Or turn off Hi-Fi in the basic settings. Does Hi-Fi work in streaming apps (Spotify, Yandex.Music)? Yes, but only if the streaming app itself has a high quality playback setting. Standard streaming quality may not unlock the potential of activated mode. Do you need a special cable for Hi-Fi? For wired connection, it is advisable to use a cable with support for digital signal transmission and built-in DAC, especially if the smartphone does not have a standard connector. 3.5 mm. Conventional charging cables may not provide the required quality.