How to increase the volume of the speaker when talking on Xiaomi Redmi: all working methods

Have you noticed that when you call Xiaomi Redmi, the interlocutor is too quiet, even at maximum volume? The problem of weak sound in the dynamics during a conversation is common for many users — especially on budget models of the Redmi Note series, Redmi A or old flagships like the Redmi K20 Pro. The reasons can be different: from dust-filled speaker grille to software limitations of MIUI.

In this article, we'll look at all the ways you can increase the volume of a speaker, from standard MIUI settings to hidden menu options and third-party utilities. It's important to understand that some methods require root rights or can affect the warranty, so we'll highlight the safe and risky options separately. If you're not ready for experiments, start with the first three, they work without risk to the system.

Before you start settings, check the obvious: is the speaker grille closed with a cover or film, is it filled with dust (relevant for models with a lower speaker, like Redmi 9), and is not on the "Silent Sound" mode in quick settings. If this is not the problem, read on.

1. Standard volume settings in MIUI

So, to start with, the simplest thing is to check the basic sound parameters in MIUI, and many users don't realize that the volume of the conversation and the media are regulated separately, and that's the first parameter that needs to be increased.

How to check:

• 📱 When you call, press the up/down volume button, and a slider will appear on the screen that says "Call Volume." Make sure it's at its maximum.
• 🔊 If the slider is already at the limit, but the sound is still quiet, go to Settings → Sound and vibration → Volume and manually adjust the level for Multimedia and Calls».
• 🔄 In some versions MIUI There is a separate item "Loudness in headphones" - if you use a wired headset, check it and.

Note that in Redmi, Android 12/13 (MIUI 14+)-based, the volume slider can stick to the middle level because of the Adaptive Sound feature.

1. Go to Settings → Special Opportunities → Sound.
2. Find the Adaptive Sound option and deactivate it.
3. Reboot the phone.

2. Enabling sound amplification in special features settings

MIUI has a hidden audio amplification feature originally designed for hearing-impaired people that can increase the volume of a speaker by 15-20 percent, but it doesn't work on all models.

Instructions:

1. Open Settings → Special Opportunities → Hearing.
2. Activate the "Amprovement of Sound" switch.
3. In the menu that appears, select “Sound Adaptation” and move the slider to the maximum.
4. Save the settings and check the volume during the call.

⚠️ Note: On some devices (e.g. Redmi Note 8 Pro), this feature can distort the sound at high volume. If you have wheezing or whistling, reduce the gain to 70-80%.

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If your MIUI version doesn't have a "Sound Amplification" option, try upgrading to the latest stable version. Xiaomi often adds new features in updates.

3. Cleaning dynamics from dust and debris

One of the most common causes of silent sound is speaker pollution, and dust, pocket pile, or film glue residue can physically block the membrane, reducing the volume, especially for lower-speaker models (Redmi 9, Redmi Note 10).

How to clean the speaker:

• 🧹 Use a soft toothbrush (dry!) – gently swipe it across the speaker grille to remove dust.
• 💨 Compressed air (a cleaning tank) will help blow out debris from hard-to-reach places. Keep the balloon vertically to avoid fluid ingress.
• 📱 For deep cleaning, you can use a toothpick with cotton wool dipped in alcohol (do not overdo it - do not press the membrane!).

⚠️ Warning: Do not use sharp objects (needles, knives) - they can damage the speaker membrane. If the sound does not improve after cleaning, the problem may be a hardware malfunction (detachment of contacts, damage to the speaker).

4.Use of the engineering menu (without root)

Xiaomi smartphones have a hidden engineering menu where you can manually increase the volume of the speaker, which does not require root rights, but you need to change the settings carefully - incorrect settings can lead to distortion of the sound.

Step-by-step:

1. Open the phone app and dial the combination: ##36446337###
2. You will be taken to the engineering menu. Go to the Hardware Testing → Audio section.
3. Select LoudSpeaker Mode (or Normal Mode if the first one is not available).
4. Find the settings: Sph Max Vol is the maximum microphone volume (do not touch!). Rx Max Vol is the maximum speaker volume (our value).

Rx Max Vol

Save the settings and restart the phone.

📌 Important: After you change the settings, check the sound at different volume levels. If you have wheezing or distortion, return the Rx Max Vol to the standard.

5.Apps for amplifying sound (without root)

If standard methods don't work, you can use third-party applications that run on top of the system and amplify the sound software.

• 🔊 Volume Booster GOODEV — It increases volume by 20 to 30 percent without distortion. MIUI 12–14.
• 📞 Precise Volume – allows you to fine-tune the volume for calls, media and alarms separately.
• 🎧 Sound Amplifier (from Google) – enhances the sound in headphones and speakers, but requires the inclusion of special features in the settings.

⚠️ Note: Some applications (such as Volume Booster) may conflict with MIUI And you can overheat the processor on long calls!

Instructions for setting up Precise Volume:

1. Install the app from Google Play.
2. Open it and give permission to change system settings.
3. Select the Calls tab and move the slider 110-120%.
4. Activate the “Apply at Startup” option (so that the settings are saved after the restart).

Install the application from an official source|Check the Compatibility Reviews with MIUI|Do not exceed the recommended volume levels|Monitoring the temperature of the phone-->

6 Advanced methods (require root)

If you're ready for radical measures and your Redmi has root rights, you can change the system files that control the sound, which is a method that maximizes amplification, but resets the warranty and can damage the speaker.

Root methods:

• 📁 Editing mixer_paths.xml — This file has volume limits, and you can change it with Root Explorer or BuildProp Editor.
• 🔧 Magisk module ViPER4Android — powerful equalizer that allows you to increase the volume by 30-40%, but requires fine tuning.
• 🔊 The Audio Modification Library app changes the parameters of the Qualcomm sound chip (works on Redmi with Snapdragon processors).

⚠️ Attention: Incorrect editing mixer_paths.xml This can cause total loss of sound. Before making changes, back up the file!

Example of modification mixer_paths.xml louden:

<path name="speaker">


<ctl name="RX1 Digital Volume" value="84" />




<ctl name="RX1 Digital Volume" value="90" />




</path>

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If after editing the system files the sound is completely lost, return the original mixer_paths.xml Or do the resetting of settings through TWRP.

7. Hardware solutions (if nothing helps)

If the software methods did not give a result, the problem may be in the hardware:

• 🔌 Discarded contacts dynamics are a common problem after falls or bumps.
• 🔊 Dynamic wear – over time, the membrane loses elasticity, especially in budget models (Redmi) 8A, Redmi 7. Replacement required.
• 📱 Sound chip problems – if both the speaker and the headphones are quietly working, the audio controller may be faulty (e.g. Qualcomm) WCD9340 Redmi Note 10 Pro).

Cost of repairs in service centers:

💡 Tip: Before visiting the service, check whether your Redmi model is subject to an extended warranty (for example, within the framework of the Xiaomi promotion.

FAQ: Frequent questions on volume on Xiaomi Redmi