Does your interlocutor constantly ask you to repeat a phrase or complain about a quiet voice during calls? The problem with low microphone volume on Android smartphones is more common than it seems. The reasons may lie both in software limitations (for example, automatic noise reduction in instant messengers) and in the hardware features of the device - from a microphone hole clogged with dust to wear of the sensor membrane. In this article we will examine all working methods increase the microphone volume, including hidden settings of the engineering menu and third-party utilities.

It is important to understand: not every method is suitable for your smartphone model. For example, owners of Samsung Galaxy with a shell One UI will find the built-in controls in the section Settings → Sounduseful, and for devices on "pure" Android (for example, Google Pixel) you will need to install additional applications. We tested the instructions on current firmware versions (Android 12–15), but some engineering menu items may not be available on budget models with a simplified hardware platform.

1. Checking the physical condition of the microphone

Before delving into the settings, make sure that the problem is not mechanical. The microphone holes on modern smartphones often become clogged with dust, pocket lint, or cosmetic residue. On models with dual microphone (for example, Xiaomi Redmi Note 12 or Realme 10 Pro), the main sensor is usually located at the bottom of the case next to the connector USB-C, and the additional one is at the top (next to the speaker).

How to clean a microphone without the risk of damaging the membrane:

  • 🧹 Use soft brush (for example, for makeup) or toothpick with the end wrapped in cotton wool. Movements should be careful, in a circle.
  • 💨 Compressed air (a can for cleaning equipment) will help blow dust out of hard-to-reach places. Keep the container vertically to avoid liquid getting in.
  • 🚫 Do not use cotton swabs —lint may remain inside. Also avoid wet wipes and alcohol-containing solutions.
⚠️ Attention: If after cleaning the volume has not changed, but you can hear wheezing or background noisein the recordings, this may indicate damage to the microphone membrane. In this case, you will need to replace the module at a service center.
📊 How often do you clean the microphone holes on your smartphone?
Never cleaned
Once every six months
Only if I notice problems
After each exposure to moisture

2. Standard Android settings: where to look for the microphone volume control

Many users do not know that Android has built-in tools for adjusting the recording level. The path to them depends on the manufacturer and version of the shell. Let's look at the most common options:

For Samsung (One UI 5.0 and later):

  1. Open Settings → Sound and vibration → Sound quality and effects.
  2. Select Audio adapter (if available) or Advanced settings.
  3. Find item Microphone gain or Microphone sensitivity (may be hidden under Settings for developers).

For Xiaomi/Redmi/POCO (MIUI 14+):

  • Go to Settings → Advanced → Special features.
  • Activate Sound improvement and enable the option Microphone gain (if available).
  • In some firmware the control is hidden in Settings → System → About phone → MIUI version (tap 7 times to unlock Developer settings).
Manufacturer Path to microphone settings Notes
Google Pixel Settings → System → Developer Settings → Audio → Microphone Gain Requires activation of developer mode
OnePlus/Oppo Settings → Sound → Additional → Microphone gain Not available on all models
Realme/Narzo Settings → Accessibility → Sound enhancement Can be called Microphone sensitivity
⚠️ Attention: On some smartphones (for example, Huawei with EMUI), there are no standard microphone volume controls. In this case, only the engineering menu or third-party applications will help.

3. Engineering menu: hidden settings for advanced users

If standard methods do not work. helped, you can contact engineering menu (Engineer Mode or MTK Engineering Mode). This is a service section where manufacturers hide low-level settings of hardware components. Caution: incorrect changes here can lead to malfunctions of the microphone or speakers.

How to open the engineering menu:

  • 📱 For processors MediaTek (most Xiaomi, Realme, Tecno): enter the code in the phone application ##3646633##.
  • 🤖 For Qualcomm Snapdragon (Samsung, Google Pixel, OnePlus): try ##4636## or #0#.
  • 🔧 On some devices, you need to install the application MTK Engineering Mode or Shortcut Master to find hidden menus.

In engineering menu:

  1. Go to section Hardware Testing → Audio.
  2. Select Mic or Microphone.
  3. In the field Level or Gain increase the value by 5–10 dB (maximum - 20 dB, but this may cause distortion).
  4. Press Set and reboot the device.
What to do if the engineering menu does not open?

On some smartphones (for example, Samsung s Exynos) engineering menu is locked by the manufacturer. An alternative is to use ADB commands to change microphone parameters. For example: 

adb shell settings put global mic_gain 15

But this method requires unlocking USB debugging and superuser rights (root).

Make a backup copy of the data|Write the current microphone settings|Do not change other parameters except Level/Gain|Reboot the phone after changes-->

4. Applications for microphone amplification: TOP-5 utilities

If manual settings do not produce results, third-party applications will come to the rescue. We have tested dozens of utilities and selected those that actually work on modern versions of Android (12–15). Important: some apps require audio recording permissions and may conflict. with instant messengers (for example, WhatsApp or Telegram).

The best applications for microphone amplification:

  • 🎤 Microphone Volume Booster (from Good Mood Apps) - a simple slider to increase the volume up to 200%. Suitable for calls and recordings.
  • 🔊 Voice Booster - automatically suppresses noise and enhances voice. There are presets for Zoom, Discord and game chats.
  • 🛠️ MTK Engineering Mode (only for MediaTek) - gives access to low-level settings, including Mic Gain.
  • 🎧 Wolfson Microelectronics - for devices with chips Wolfson (found in old flagships LG and HTC).
  • 📱 SoundAbout - allows you to reassign audio streams and increase the microphone volume for specific applications.

How to set up Microphone Volume Booster:

  1. Install the application from Google Play and provide permissions to record audio.
  2. In the main window, move the slider Microphone Gain to 120–150%.
  3. Activate the option Noise Suppressionif you can hear the background noise.
  4. Test the microphone in Voice recorder or messenger.
⚠️ Attention: Applications like Microphone Volume Booster work only while closed. utility, you will return to the standard microphone settings. For a permanent effect, you will need to keep the app in the background (which increases battery consumption).
💡

If after installing the application the microphone begins to wheeze, reduce the gain level to 100-110% and turn off noise processing. Often distortion occurs due to a conflict with the built-in noise reduction algorithms of Android.

5. Setting up a microphone for specific applications

Sometimes the problem with a quiet microphone appears only in certain apps - for example, in Zoom or Discord. This is due to the fact that instant messengers and video conferencing services use their own sound processing algorithms, which can artificially reduce the volume.

How to increase the microphone volume in popular applications:

For Zoom:

  • 🎙️ In the conference window, click on ^ next to the button Mute.
  • Select Audio settings → Advanced.
  • Disable Automatic volume control microphone.
  • Set manual level to 80–90%.

For Discord:

  • 🎧 Go to User Settings → Voice and Video.
  • V section Input device increase the slider Microphone volume.
  • Disable Automatic volume control and Noise reduction (if they cause artifacts).

For WhatsApp/Telegram:

  • 📱 These messengers do not have separate microphone settings, but you can use SoundAbout to reassign audio streams.
  • In SoundAbout select Media audio → Microphone boost and set the value 1.5x or 2x.
💡

In 80% of cases, the problem is with a quiet microphone in messengers can be solved by disabling automatic volume control. Noise reduction algorithms often mistake the voice for background noise and reduce its level.

6. Problems with firmware and updates

Sometimes low microphone volume is associated with firmware bugs or incorrect updates. For example, after the release of Android 14, some users Samsung Galaxy S22 complained about low sound in calls due to a bug in the audio driver. In such cases, rolling back to a previous version of the software or manually installing a patch helps.

How to check and fix problems with the firmware:

  • 🔄 Update your smartphone to the latest version of Android via Settings → Update Software.
  • 📲 If the problem appeared after the update, try resetting the network settings: Settings → System → Reset → Reset Wi-Fi, mobile network and Bluetooth settings.
  • 🛠️ For advanced users: install custom kernel (for example, FrancoKernel) with improved audio drivers. Requires root.

If resetting does not help, check system logs for audio driver errors:

  1. Activate Developer mode (tap 7 times on the build number in Settings → About phone).
  2. Enable Error log in Developer settings.
  3. Reproduce the problem (for example, make a test call) and check the logs through Logcat (application Logcat Reader from Play Market).
⚠️ Attention: Installing custom firmware or kernels will void the warranty and may lead to the device being bricked. Before experiments, create a backup using TWRP or standard Android tools.

7. data-i="232">If none of the software methods worked, the problem is most likely hardware. Here are the signs indicating

If none of the software methods work, the problem is most likely hardware. Here are the signs pointing to physical damage to the microphone:

  • 🔇 The microphone does not work at all (the interlocutor cannot hear you even at maximum volume).
  • 🎵 In the recording audible extraneous noise: crackling, whistling or constant background hum.
  • 💧 The phone was dropped into water or subjected to strong vibration (for example, after a bike ride without a case).
  • 🔌 The problem appeared after replacement battery or disassembling the case.

What you can do yourself before going to the service:

  • 🔧 Check the microphone on another device: connect headset with microphone (for example, from Apple EarPods) to your smartphone If the sound in the headset is normal, the problem is in the main microphone. phone.
  • 🔄 Reset settings to factory settings: Settings → System → Reset → Delete all data. Attention: this will delete all files from the device!
  • 📱 Install alternative software for the test: the application Microphone Test from Smart Tools will help check the sensitivity of the sensor.

Cost of microphone repair in service centers:

Type of breakdown Average price (₽) Repair period
Replacement of the main microphone 1 200–2 500 1-2 hours
Cleaning/repair connector 800–1 500 30–60 minutes
Replacing the flexible cable (if damaged) 2 000–4 000 1–3 days
💡

If the microphone stopped working after the phone was dropped, do not try to disassemble it yourself Modern smartphones (for example, iPhone-shaped Xiaomi 13) have adhesive connections, and careless disassembly may damage other components.

FAQ: Frequently asked questions about setting up a microphone on Android

❓ Why did the microphone become quieter after updating Android?

This is a typical problem when upgrading to new firmware versions (for example, from Android 12 to 13). Manufacturers often update audio drivers, adding more aggressive noise reduction algorithms. Solution:

  1. Check the settings Sensitivity microphone in the engineering menu.
  2. Roll back to the previous version of the software (if there is a backup).
  3. Install alternative software like ViPER4Android (requires root).
❓ Is it possible to increase the microphone volume without root access?

Yes, most of the methods from this article (standard settings, applications like Microphone Volume Booster, engineering menu) do not require root. However, for deep customization (for example, changing system files mixer_paths.xml), superuser rights are required.

❓ Why is it hard to hear me in WhatsApp, but in regular calls? normal?

WhatsApp uses its own codec and audio compression algorithms, which may conflict with the microphone settings. Try:

  • Disable Saving traffic in the messenger settings.
  • Use SoundAbout to redirect the audio stream.
  • Update the application to the latest version.
❓ How to check if the microphone is working on Android?

The easiest way is to use the built-in one Dictaphone:

  1. Open the application Dictaphone (or install Easy Voice Recorder).
  2. Make a recording lasting 10-15 seconds.
  3. Listen to it in headphones - if the voice is barely audible or is accompanied by noise, the microphone is faulty.

For accurate diagnosis, use Phone Doctor Plus or AIDA64 - they test all smartphone sensors.

❓ Why did the sound become worse after cleaning the microphone worse?

You have probably damaged the microphone membrane or brought lint/liquid inside. In this case:

  • Immediately turn off the phone and leave it for 24 hours in a dry place (for example, next to a silica gel packet).
  • Do not use a hair dryer or others. heating devices - this can deform the membrane.
  • If the problem persists after drying, contact the service.