Today’s users often face the need to share audio content with a friend while they’re around.Whether it’s watching a movie on a trip or listening to a music track, the desire to connect two audio output devices to a single smartphone is becoming increasingly urgent. Xiaomi’s ecosystem, including popular Redmi and POCO models, offers flexible tools to accomplish this task, but the process isn’t always obvious to the beginner.
There are several technical ways to implement this feature, depending on the version of the MIUI or HyperOS operating system, as well as the type of headset used. If you use wireless solutions, you will need support for Bluetooth 5.0 or later for stable operation without delay. In the wired version, the situation is more complex and requires additional hardware solutions, which we will talk about later.
In this guide, we will analyze in detail the software settings, features of working with TWS-Understanding the principles of audio streaming in Android will help to avoid dissynchronization of sound and ensure high quality playback for both listeners.
Software division of sound through Android settings
Starting with certain versions of the Android operating system, Google has introduced native support for Dual Audio, which allows you to broadcast an audio signal to two independent Bluetooth devices at the same time, and owners of Xiaomi smartphones with a MIUI shell of 12 and above can take advantage of this advantage without installing third-party software.
To activate this option, you need to go to the Bluetooth settings menu, and here you will see a list of available devices. Once you connect the first headset, the system will suggest finding and connecting the second one. It is important to understand that the load on the Bluetooth module increases, which can slightly increase the power consumption of the smartphone.
⚠️ Note: Dual Audio may increase latency, which is critical when watching video or games.
The activation process is usually as follows:
- 🎧 Turn on Bluetooth on both headphones and put them in pairing mode.
- 📱 Open your smartphone settings and find the “Bluetooth” item».
- 🔗 Connect the first device, wait for the status "Connected».
- 🔁 Click on the device search button or select the second device from the list of available devices.
- ✅ After connecting the second gadget, the sound should go simultaneously to both channels.
Not all codecs support high-bitrate dual transmission, but the system can automatically switch to the base SBC codec to ensure connection stability, which will reduce the sound quality compared to aptX or AAC.
Using Audio Share in the Xiaomi ecosystem
Xiaomi has introduced its own implementation of the audio separation feature, called the Audio Share, which is particularly well optimized for Mi True Wireless and Redmi Buds, which allows you to not only duplicate the sound, but also control the volume of each device independently.
To take advantage of this opportunity, make sure your smartphone has updated the Bluetooth system library to the latest version. Often the necessary components come with security updates or major HyperOS shell updates.
Model compatibility
Algorithm for ecosystem users:
- 📲 Unlock your smartphone and open the notification curtain.
- 🎵 Click on the Media Management icon or run any player.
- 🔊 In the playback interface, find the “Audio Share” button or the icon of two speakers.
- 👥 Follow the instructions on the screen to add a second audio receiver.
A unique feature is the ability to transmit sound not only to headphones, but also to compatible smart speakers or Mi TVs, creating a distributed audio system in the room, which creates a surround sound effect, albeit with some limitations on synchronization.
Connecting wired headphones through USB-audio
The situation with wired headsets is more complicated, since a standard 3.5 mm connector (mini-jack) can not physically divide an analog signal into two independent channels without losing quality or using special adapters. However, modern Xiaomi smartphones often lack this connector, relying on a USB Type-C port.
To connect two pairs of wired headphones, you will need a special splitter with support for DAC (digital-to-analog converter), a conventional charging cable for charging is not suitable here, since it is not designed to transmit audio data.
| Type of connection | Equipment required | Sound quality | Stability |
|---|---|---|---|
| Bluetooth Dual Audio | Smartphone with BT 5.0+ | High (depending on the codec) | Medium |
| USB-C Splitter | DAC splitter | Very high. | Tall. |
| 3.5 mm Splitter | Passive splitter | Average (loudness loss) | Tall. |
| Third-party annexes | Root-right (often) | Low (artifacts) | Low. |
In the case of USB-Some cheap models may not provide enough voltage to operate two pairs of headphones at once, resulting in a quiet or no sound.
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When buying a USB-C splitter, make sure it supports data and audio, not just charging.Look for the "Audio Support" or "48kHz/96kHz" label.
Using third-party applications to distribute sound
If MIUI is not working well or your device is not supporting native Dual Audio, you can turn to third-party developers. There are a number of utilities in the Google Play store that circumvent Android system limitations.
One popular solution is to use virtual audio output applications that capture system sound and redirect it to multiple connected Bluetooth devices, but it's worth remembering that these programs often require deep integration into the system.
⚠️ Attention: Using third-party audio management apps can lead to increased battery consumption and background processes that are difficult to disable.
The most well-known tools require that you have a Root right to work properly, and without a superuser, you'll have a limited functionality.
- 📥 Download the application from a trusted source (such as Sound Assistant or analogues).
- 🔐 Provide the necessary permissions to access the microphone and Bluetooth.
- ⚙️ In the application settings, select Multi-output or Dual Sound mode».
- 🎚️ Set up the volume balance for each connected device.
The effectiveness of these methods depends on the model of the processor and the version of Android. On new versions of Android 13/14 with enhanced security protection, many such applications may not work correctly or crash.
☑️ Checking before installing software
Synchronization and delay problems of sound
The most common problem when connecting two headphones is out-of-synchronization, and the sound in one headphone can be split-second behind the other, which creates an unpleasant echo effect, due to the peculiarities of the Bluetooth protocol and the queue of data packets.
Technology TWS (True Wireless is a signal that is initially transmitted from a phone to one earpiece, which then relays it to the second. TWS-Headphones to one phone this chain is complicated, and the delay can become noticeable.
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To minimize delay, try to keep both headphones as close to your smartphone as possible and eliminate physical obstacles between them.
To reduce the impact of delay, it is recommended that:
- 🔄 Disable the options associated with high-resolution codecs (aptX) in the developer settings HD), baseline SBC.
- 📶 Make sure there are no sources of strong radio interference (Wi-Fi routers, microwaves).
- 🔋 Check the battery charge in headphones, as at low charge, the Bluetooth module can work unstablely.
If you watch video, many players (like VLC or MX Player) have built-in audio sync correction. You can manually move the audio track to make up for the lag.