Owners of the popular Xiaomi Redmi Note 8 smartphone often face the need to improve the quality of recorded sound, whether for creating professional content, conducting podcasts or recording interviews. The smartphone's built-in microphones certainly cope with basic tasks, but external equipment is required for a deeper dive into the audio sphere. Connecting an external headset or a studio microphone opens new horizons for video bloggers and musicians.
Modern technology allows you to use different interfaces for audio transmission, and the Redmi Note 8 is no exception here, offering flexible configuration options. However, the process of pairing can seem confusing for a beginner due to the lack of a standard 3.5 mm headphone jack in some versions or features of the MIUI operating system. In this article, we will discuss in detail all possible ways of connecting, the necessary adapters and software settings.
It's important to understand that the quality of the end recording depends not only on the microphone itself, but also on the correct connection and the software you choose. We'll look at wired and wireless solutions, and we'll also look at the common problems with device recognition.
Choosing the right microphone for the Redmi Note 8
Before you get into technical manipulation, you need to decide on the type of equipment you plan to use. The market for mobile peripherals is huge, and the choice depends on your specific tasks: recording voice indoors, street reporting or studio work. Xiaomi Redmi Note 8 supports a wide range of audio devices, but each type has its own features of connectivity.
Podcasters and vocalists are ideal for USB-enabled condenser microphones or classic dynamic models that require additional power. On-the-go video bloggers should look for loop microphones that provide a clean sound of voice even in noisy environments. Choosing the right equipment is the first step to quality results.
It is worth considering that some professional microphones require phantom power, which the smartphone can not provide, in such cases, you will need to purchase an additional interface or audio card. USB-microphones or wireless systems operating directly through a charging port.
Connection via USB Type-C and OTG port
The most high-quality and stable way to transmit digital audio signals is using the USB Type-C port. The Redmi Note 8 smartphone features a version 2.0 connector that supports OTG (On-The-Go) technology. This allows you to connect peripherals, including digital microphones, directly without the need to install drivers, since the Android system recognizes them automatically.
To connect you will need either a microphone with a native connector. USB-C, supplant USB-A on USB-C (OTG-If you use a professional audio card or microphone with a regular USB-So if you plug it in, you plug it into the adapter, and then you plug it into the smartphone, and the system has to make the signature sound of the device's connection.
☑️ Checking connection readiness
In some cases, activation of the function may be required. OTG in the settings, though in the shell MIUI It's often on by default. If the sound doesn't show up, check the settings in the Settings section. → Connections and sharing → USB-Make sure that the mode is set to "File Transfer" or"USB-audio" if such a paragraph is available.
⚠️ Attention: Using cheap Chinese adapters without shielding can cause severe interference and noise in the recording.
A digital signal via USB provides the best signal-to-noise ratio, as the conversion takes place inside the microphone itself or an external sound card, which frees the smartphone processor from unnecessary load and minimizes delays when monitoring sound in real time.
Use of Bluetooth microphones and headsets
Wireless Bluetooth connectivity provides maximum mobility, eliminating unnecessary wires that can get confused during shooting. Redmi Note 8 supports current Bluetooth versions with SBC, AAC and aptX codecs, allowing you to transmit sound of a fairly high quality, albeit with a slight delay.
The pairing process is standard for all Android devices, you need to turn the microphone into detection mode (usually with a long press of the power button) and find it in the list of available devices on the smartphone. Once the connection is successful, the system will automatically redirect the audio input to the external device.
- 🎙️ Open the Settings menu on your Redmi Note 8.
- 📡 Go to the Bluetooth section and switch on the switch.
- 🔍 Click "Search for Devices" and select your microphone from the list.
- ✅ Confirm the conjugation if required to enter PIN-code (usually 0000 or 1234).
Problem with Sound Delay (Latency)
It's worth noting that when you connect a Bluetooth headset, the quality of the recording can be inferior to wired counterparts due to compression of the audio stream. However, for interviews, calls or recording tape notes, this is quite enough. Wireless freedom often outweighs the slight loss of quality for reporters.
Connection via 3.5mm adapter (Mini-Jack)
Since the Xiaomi Redmi Note 8 lacks a classic headphone jack, using analog microphones with a 3.5 mm connector requires a special adapter. It is important to understand the difference between a regular audio cable and an active adapter with a built-in DAC.
When you connect an analog microphone through an adapter, the signal passes through the DAC inside the adapter before it enters the smartphone, and the sound quality depends on the quality of the adapter itself, and cheap models can add background noise or make the sound flat.
| Type of connection | Required adapter | Sound quality | Delay. |
|---|---|---|---|
| USB Type-C | Not required (or OTG) | High (Digital) | Minimum |
| Bluetooth | Not required | Medium (Compressed) | Available (100-300 ms) |
| 3.5mm Jack | Active USB-C adapter | Depends on the DAC. | Minimum |
To connect a loop with a TRRS connector (4 pins), make sure the adapter supports microphones, not just headphones. Some adapters may have a separate Mic/Headset mode switch to set to the correct position.
⚠️ Note: Not all adapters USB-C 3.5mm support microphone input, make sure the package or product description includes Headset with Mic support, not just music playback.
Setup of applications for recording sound
After you physically connect the equipment, you need to choose the right software. Xiaomi's standard voice recorder can work with external microphones, but its functionality is limited. For professional recording, it is recommended to use third-party applications such as Dolby On, RecForge II or Easy Voice Recorder.
The selected application settings manually specify the source of the sound. Often the built-in microphone is chosen by default and it needs to be switched to "External microphone" or "USB Audio". In some professional applications, real-time monitoring of the input level is available, which avoids overload.
- 📱 Download the audio recording app from Google Play Market.
- ⚙️ Open the application settings and find the item "Sound Source" (Audio Source).
- 🎤 Select the "External Mic" or"USB".
- 📈 Check the volume indicator – it should respond to your voice.
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Use applications with manual tuning (Gain) Automatic volume control (AGC) often "swallows" the endings of phrases or adds noise in pauses, so manual mode is preferable for quality content.
To shoot video through a standard MIUI camera, the external microphone must also be automatically determined. If this does not happen, try rebooting the smartphone with the device already connected.
Addressing common problems
Even with the right connection, users can face a number of technical difficulties. The most common problem is that the smartphone "sees" the device, but the sound continues to be written from the internal microphone. In this case, you should check the application permissions. Go to Settings → Applications → (Your recording application) → Permissions and make sure that access to the microphone is allowed.
Another problem is the quiet sound or the lack of it, which can be due to impedance incompatibility or a lack of power supply to the port. USB It's a very energy-intensive microphone, and it helps in this case. USB-hub with its own power or replacement of the adapter with a better quality.
⚠️ Warning: If the microphone starts to discharge or heat quickly, turn off the device immediately, which may indicate a short circuit in the cable or voltage incompatibility.
Sometimes cleaning the cache of the Sound Settings app or resetting the network settings helps. Remember that software failures in MIUI can block the work of the periphery after a system update. Regular updates to the smartphone software help avoid driver conflicts.
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In 90% of cases, the problem with a broken microphone is solved by replacing the cheap USB-C adapter with a high-quality analogue with support for DAC and microphone input.