How to connect a microphone to the soundbar Xiaomi: all ways + problem solving

Connecting a microphone to Xiaomi’s soundbar is a challenge faced by gamers, streamers and those who want to organize karaoke or video conferencing with high-quality sound. Despite the fact that most Xiaomi soundbars (such as Mi Soundbar 3.1, Redmi Soundbar Pro or Xiaomi TV Soundbar) do not have built-in microphone input, there are several working ways to integrate an external microphone. In this article, we will examine all possible options, from simple adapters to advanced circuits using mixers or Bluetooth transmitters.

It is important to understand that Xiaomi soundbars were originally designed as audio output devices, not for recording voice, but with additional hardware (such as Bluetooth profile-enabled adapters). HSP/HFP or USB-Sound maps, you can get around this limitation. We tested all the methods on the models. 2020–2026 Over the years, they identified the most reliable solutions, including avoiding common mistakes such as no sound or echo.

If you need to connect a karaoke microphone, stream or call Zoom/Teams, you'll find step-by-step photo instructions, method comparisons, and answers to frequent questions. And if your soundbar model doesn't support any of the ways, we'll give you some additional hardware to buy to solve the problem at a minimal cost.

1.What Xiaomi soundbars support microphone connectivity?

Among Xiaomi’s soundbar lineup, only a few models have built-in microphone capabilities, and indirectly.

• 🔹 Mi Soundbar 3.1 (2023) – No microphone input but supports Bluetooth 5.2 with profile A2DP (You need an adapter for the microphone.
• 🔹 Redmi Soundbar Pro -- similarly, only speaker output. USB-C (restrictively).
• 🔹 Xiaomi TV Soundbar (2022) - has HDMI ARC, The microphone is only connected via an external mixer or TV-prefix.
• 🔹 Xiaomi Smart Speaker (like Mi Smart Speaker Pro) – it already has a built-in microphone, but it’s not a soundbar.

If your model is not on the list, it doesn’t mean that you can’t connect the microphone, it just requires additional equipment. For example, for the first generation Xiaomi Mi Soundbar (2016), the only working way is to use a Bluetooth transmitter with support for the new model. HSP (For example, Avantek BTA-200) or USB-sound-card.

The key takeaway is that no Xiaomi soundbar has a dedicated microphone input, but all models can be adapted to this task.

2. Method 1: Connection via Bluetooth (for microphones with HSP/HFP)

The easiest way is to use a Bluetooth microphone (like a Fifine K688 or Boya BY-M1) or a headset that supports HSP (Headset Profile) or HFP (Hands-Free Profile) profiles, which allow you to transmit both sound and voice over a single channel.

But there's a caveat: Xiaomi's default soundbars only work with an A2DP profile (playback only), and to get them to receive a signal from a microphone, you need to:

1. Transfer the soundbar to pair mode (press and hold the Bluetooth button until the indicator blinks).
2. On the phone/PC, enable device search and connect to the soundbar.
3. In Bluetooth settings on the sound source (smartphone, PC) manually select a profile HSP/HFP (Android: Settings → Connected devices → Settings (⚙) → Use it for calls).

If the soundbar does not support HSP/HFP (as most models do), you will need a Bluetooth adapter transmitter with support for these profiles, such as the 1Mii B06 Plus or Avantek BTA-200, it is connected to the soundbar via AUX or RCA, and the microphone is connected to the adapter via Bluetooth.

Supported microphone (HSP/HFP)

Bluetooth adapter (if the soundbar does not support HSP)

AUX 3.5mm Cable (to connect the adapter to the soundbar)

Charged power supply for the adapter (USB battery)-->

⚠️ Note: Bluetooth can cause latency of up to 100-200 ms. This is critical for karaoke or streams. To reduce latency, use adapters that support aptX Low Latency.

Method 2: Connect via AUX (3.5 mm) using a mixer

If your soundbar has an AUX IN input (3.5 mm), you can connect the microphone via an analog mixer or preamplifier, a method that is suitable for Xiaomi Mi Soundbar (2016–2020) and Redmi Soundbar.

You'll need:

• 🎤 Microphone with exit XLR or 3.5 mm (e.g. Behringer) C-1 Fifine K669B).
• 🔊 Mixer with speaker output (e.g., Behringer Xenyx 502 or Mackie) Mix5).
• 🔌 Cables: XLR→XLR (for microphone) and 3.5 mm→RCA (soundbar).

Connection diagram:

1. Microphone → Mixer (XLR input or 1/4 input)
2. The Mixer (Main Out) → entrance AUX IN soundbara.
3. On the mixer, turn on phantom power (if the microphone is condensing).
4. Adjust the volume levels on the mixer and soundbar.

The advantage of this method is that it has minimal sound delay (suitable for karaoke) and the ability to connect multiple microphones, but the disadvantage is that it requires additional devices and cables.

4. Method 3: Connecting through USB (soundbar USB-port)

Some Xiaomi soundbar models (e.g. Redmi Soundbar Pro) have a USB-C or USB-A port, but it is only designed to power or play music from a flash drive, not to connect a microphone.

• 🖥️ USB-sound card (e.g. Behringer) UMC202HD Or focusrite scarlett solo).
• 🎤 Microphone with interface XLR or USB.
• 🔌 Cables: USB→USB-C (for sound card power) and 3.5 mm→RCA (soundbar).

Step-by-step:

1. Connect the microphone to USB-sound-card.
2. Connect the output of the sound card (Line Out) with the input AUX IN soundbar.
3. Connect the sound card to the sound source (PC, smartphone) via USB.
4. In the sound settings at the source, select USB-map.

This method is suitable for streamers and broadcasters, because it allows you to separately adjust the levels of the microphone and music, but it requires a PC or smartphone in the chain.

5. Method 4: Connect via HDMI ARC (if the soundbar is connected to the TV)

If your Xiaomi soundbar is connected to your TV via an HDMI ARC (like Mi Soundbar 3.1), you can use TV as a middleman to connect your microphone. This method works on a Smart TV with Android TV, webOS or Tizen.

What you need:

• 📺 Supported TV HDMI ARC and the microphone entrance (or USB-port).
• 🎤 A microphone with 3.5 mm or USB.
• 🔌 Cable HDMI 2.0 (for) ARC).

How to connect:

1. Connect the microphone to the TV (in Mic In or USB-port).
2. In the TV settings, select the microphone as the input device (on Android TV: Settings → Devices → Microphone).
3. Activate HDMI ARC on the soundbar (usually automatically).
4. Enable audio transmission from TV to soundbar (in the TV sound settings, select HDMI ARC or External speakers).

This is convenient for video conferencing (Zoom, Teams), as the microphone will work directly over the TV. However, not all TVs support microphone connection - check the specifications of your model.

⚠️ Attention: When in use HDMI ARC There may be a conflict of devices if TV Other sound systems are connected (such as a home theater), in which case, turn off the extra devices or reconfigure the audio priorities in the menu. TV.

6.Typical errors and how to fix them

Even if you plug in the microphone correctly, these are the most common problems and solutions.

• 🔇 Microphone does not record sound: Check if phantom power is on on the mixer (for capacitor microphones). Make sure the microphone is connected to the correct connector (for example, Mic In, not Line In). On PC, check the audio settings: the microphone should be selected as the default recording device.
• 🔊 The sound comes with an echo or interference: Turn down the volume on the mixer or soundbar, it will reduce feedback. Move the microphone away from the soundbar speakers (at least 1 meter). Use a noise-canceling filter (for example, in the soundbar). OBS studio NVIDIA Broadcast).
• ⏱️ Sound Latency: For Bluetooth: use adapters with aptX Low Latency. USB: Reduce the sound card buffer in settings (e.g., in ASIO4ALL). For HDMI ARC: firmware update TV and soundbar.

Critical error: If you hear a strong background noise when connecting through AUX, it is likely a problem in the grounding. Use shielded cables or connect all devices to a single network filter.

💡

If you connect a karaoke microphone, install the Smule or StarMaker app on your smartphone and select an external microphone in your audio settings (if you connect via Bluetooth or USB).

7 What equipment should I buy to connect the microphone?

If you’re just planning to organize a system with a Xiaomi microphone and soundbar, here’s the minimum set of equipment for different tasks:

For a budget option, you can do with a Bluetooth headset (for example, Xiaomi AirDots Pro), but the sound quality will be worse than that of specialized microphones. XLR-microphone + mixer.

💡

For karaoke, a mixer and dynamic microphone (such as the Shure SM48) are best suited, as it offers minimal latency and high sound quality.

FAQ: Frequent questions