How to turn on speakerphone on the smartphone Xiaomi Redmi 9

Modern smartphones like the Xiaomi Redmi 9 have become an integral part of our lives, serving as a navigator, entertainment center and, of course, a means of communication. However, in situations where you need to free your hands while talking or when you are in a noisy place, standard mode becomes insufficient, and that is when the hands-free feature comes to the rescue, which allows you to conduct a dialogue at a distance from the device.

Many budget users have difficulty activating this option because the MIUI shell interface has its own unique features. Incorrect settings or accidentally touching the screen can cause the interlocutor to stop hearing you and you will stop hearing him. In this article, we will discuss in detail all the ways to activate, adjust and solve sound problems.

It is worth noting that voice quality is directly affected not only by software settings, but also by the physical characteristics of the device. The main speaker in Redmi 9 is located on the bottom line, and its performance can be limited by contamination or software failures. Understanding the principles of the audio system will help you avoid awkward situations during important calls.

Basic activation during conversation

The most obvious and most commonly used method of turning on hands-free is to activate the function directly during the call, so when you make a call or receive an incoming call, the control interface is displayed on the screen, and there's a big button with the speaker image, which is responsible for switching the audio modes.

Click the speaker icon to activate Hands-free mode, at which point the sound from the top speaker will be redirected to the bottom speaker, which is much more powerful, and you will hear a characteristic click, and the icon on the screen will light up, signaling that the microphone and speaker are working in amplified mode.

⚠️ Warning: When you turn on the hands-free, the microphone of the smartphone begins to pick up all the surrounding sounds.Try not to hold the phone too close to the ear to avoid the effect of echoes and whistles (acoustic feedback).

If the button fails to respond or disappears after pressing, there may have been a malfunction in the Phone system process, in which case it is recommended to terminate the current call and restart the device, often this simple action eliminates temporary resource conflicts that block the audio module.

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The hands-free button may be inactive in the first seconds of the connection, wait for the subscriber's response or beeps before switching mode.

Customization of sound and codecs in the engineering menu

For a deeper audio stream customization owners Xiaomi Redmi 9

In addition to software settings, the physical condition of the device plays a critical role: protective films, poor-quality covers or banal dust can block the speaker holes. Regular cleaning of the speaker mesh with a soft dry brush will help maintain the volume declared by the manufacturer.

Solving problems with quiet sound and interference

When the speakerphone is on, but the sound remains quiet or intermittent, is a common complaint of Redmi 9 users. Often the cause is a noise reduction algorithm that aggressively cuts off background noise, mistakenly taking the voice of the interlocutor for them. Try to turn off the "noise suppression" function in the settings, if such an option is available in your version of the firmware.

Another reason could be overheating of the processor or audio chip. If you have long conversations on speakerphone, especially in hot weather or in bright sun, the device can force the power of the speakers to protect the components. Let the smartphone cool in the shade, and the volume should recover.

• 🔊 Check if the overall volume level is set to a minimum - the sound adjustment buttons change the volume during the call.
• 📶 Make sure the network signal is stable – with poor coverage (1-2 dividing) the sound may be distorted or lost.
• 🔄 Update the Phone app through the Google Play store or GetApps, as older versions may contain bugs.

If the problems persist after all the manipulations, it may be a hardware malfunction of the speaker or the plume, in which case the software methods are powerless, and you will need a diagnosis in the service center.

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Use a headset with an external microphone if you often have to talk in very noisy places – this will improve the intelligibility of speech for the interlocutor.

Use of Bluetooth headsets and devices

An alternative to built-in speaker is external speaker systems. Connecting Bluetooth headphones or a portable speaker allows you to implement a hands-free feature with much higher sound quality.

To connect, go to Settings → Bluetooth and select your device from the list of available ones. After successfully pairing during the call, the audio source button will appear on the screen. Click on it and select your headset instead of Phone.

The advantage of this method is that you can put your phone in your pocket or bag while you're still talking, which is especially convenient in the car or in the kitchen when your hands are busy with other things. Modern audio protocols like aptX or LDAC provide minimal latency and high quality voice.

Comparison of regimes in MIUI

The MIUI shell offers several sound use cases, and understanding the differences between them will help you manage the device effectively. Below is a table comparing the main features of the different modes.

Choosing the right mode is important not only for comfort, but also for saving battery power. hands-free mode consumes more power, as it requires power from a powerful speaker. If you expect a long conversation and the Redmi 9 battery is already dead, you should use a conventional or wired headset.

⚠️ Attention: Using Bluetooth headsets with low battery power can lead to a sharp deterioration in sound quality and a connection break in the middle of an important conversation.

And you also have to consider that when you switch between modes, you can have a short-term fading of sound, which is normal behavior in the system, which is to reconfigure the audio stream, so you don't have to panic and press the buttons a lot, but you have to give the system a couple of seconds to adapt.

Frequent Questions and Answers (FAQ)