Quiet conversational speaker is one of the most annoying problems of owners of smartphones based on Android. The interlocutor constantly asks again, you strain your hearing, and during a call in a noisy place or on the street, communication becomes almost impossible. This does not always mean the device is broken; often the reason lies in software limitations or incorrect system settings.
In this article we will look in detail at how to increase the speaker volume on Android during a call, using both built-in system tools and third-party utilities. We will look at methods from simple equalizer settings to using the engineering menu, which allows you to directly control the level of signal gain. Please note that some methods require caution so as not to damage the gadget's hardware.
Basic sound and equalizer settings
Before moving on to complex methods, you need to check the standard sound settings, which users often ignore. In most modern shells, such as MIUI, One UI or OxygenOS, there are separate sliders for different types of media. If you increase the volume with the buttons while watching a video, this does not always affect the level of the speaker.
For correct settings, go to the menu Settings → Sound and vibration. Here you will see a volume scale. Tap the gear icon or three dots in the corner of the screen to expand advanced settings. Make sure that the parameter Ring volume and Notification volume are set to maximum or to a level that is comfortable for you.
It is also worth checking for a built-in equalizer. Manufacturers often add presets that can "cut" the high frequencies where the human voice is found. Try changing the sound profile from Music or Bass to Voice or Speech mode. If there is no such mode, manually raise the sliders in the range from 1 kHz to 4 kHz - this will improve the intelligibility of the interlocutor.
- 🔊 Check if Do Not Disturb or Quiet Mode is activated, which may programmatically limit the maximum volume.
- 🎛️ Use the built-in equalizer to raise the average and high frequencies, which are responsible for speech clarity.
- 📱 Make sure that the physical volume button is configured to control calls, and not media content.
Using the engineering menu for amplification
The most effective way to increase the speaker volume on Android during a conversation is access to the engineering menu. This is a hidden section of the system intended for engineers and testers, where you can directly control the parameters of the audio chip. It is accessed through a special application "Engineering Mode" or by entering the USSD code in the phone.
For devices on processors MediaTek the code is most often used ##3646633##, and for Qualcomm — ##8351## or ##8350##. After entering the code, you will be taken to a menu where you need to select the tab Hardware Testing, then go to the section Audio and select Audio Debugging. Here we are interested in the mode Normal Mode (normal operating mode), and not the headset mode.
In the window that opens, you will see a list of volume levels (Level 0–6) and device type (Sph - spherical/conversational speaker). Select the type Sph and successively increase the value in the field Value for each level. Be careful: do not set values higher than 160–200, as this may overload the speaker and cause it to physically fail.
Before changing any values in the engineering menu, write down the original numbers on paper or take a screenshot. This will allow you to return the settings back if the sound becomes hoarse or disappears altogether.
⚠️ Attention: Changing parameters in the engineering menu is done at your own peril and risk. Incorrect settings can cause the speaker to wheeze or stop working completely. Do not change the values in sections whose purpose you do not know.
Third-party applications for sound amplification
If fiddling with the engineering menu is too scary or it is blocked by the manufacturer (which often happens on new models Samsung or Pixel), applications from Google Playcome to the rescue. They work as software amplifiers, boosting the digital gain of the signal before sending it to the speaker. One of the most popular solutions is the application Volume Booster GOODEV.
The principle of operation of such utilities is simple: they intercept the audio stream and apply a gain factor (Boost) to it. In the application settings you can choose the percentage of volume increase. It is recommended to start with small values (20-40%), since excessive gain leads to severe distortion and crackling in the dynamics.
Another effective solution is to use an application for adjusting the equalizer with a preamp function, for example Precise Volume or Flat Equalizer. They allow you to create a profile specifically for phone calls, where all available app limits will be maxed out. However, it is worth remembering that software amplification cannot make a physically weak speaker louder; it only squeezes the maximum out of it.
☑️ Safe use of boosters
Cleaning the speaker and eliminating physical interference
Often the question of how to increase the speaker volume on Android during a call is solved not programmatically, but mechanically. The speaker grille, located at the top of the screen, is an ideal place for dust, earwax and pocket lint to accumulate. Clogged pores of the grill muffle the sound, reducing its volume by 30–50%.
To clean, use a soft toothbrush with stiff, but not metal, bristles. Gently, without pressing hard, clean the speaker holes using a circular motion. You can also use adhesive tape to pull dust out of deep channels. Never use needles or sharp objects to clean the speaker - you risk puncturing the membrane and permanently ruining the sound.
If cleaning with a brush does not help, try the "sonic vibration" method. There are special YouTube videos or apps that generate low-frequency sound of a certain frequency. This sound causes the speaker diaphragm to vibrate at a high amplitude, pushing the trapped dust out. After this procedure, wipe the speaker with a dry cloth.
| Cleaning method | Efficiency | Risk of damage | Required tools |
|---|---|---|---|
| Toothbrush | High | Low | Soft bristle brush |
| Adhesive tape | Medium | Minimum | Scotch or masking tape |
| Sound vibration | Medium | None | Smartphone and application/video |
| Compressed air | High | Medium (risk of blowing dust deeper) | Compressed air cylinder |
⚠️ Attention: Do not try to wash the speaker with water or alcohol, even if the phone has moisture protection. Liquid can get under the protective membrane and cause oxidation of the contacts, which will lead to complete failure of the module.
The influence of protective glass and covers
A non-obvious, but common cause of a quiet sound is a poor-quality protective glass or cover. Some accessory manufacturers do not provide a sufficient cutout for the speaker, or the glass material itself is too thick and dampens the sound wave. This is especially true for hydrogel films and glasses with full screen coverage (Full Glue).
Carefully inspect the top of the screen. If the protective glass covers the speaker holes even partially, the sound will be muffled and quiet. In this case, it is recommended to replace the accessory with a model with the correct cutout or remove it temporarily to test the hypothesis. Sometimes it is enough to simply move the glass up a little if the glue allows this to be done without the formation of bubbles.
Also check the case. Thick silicone or leather bumpers can create an enclosed space around the speaker, changing the acoustics and dampening the sound. Try removing the case and making a test call. If the volume returns to normal, the problem is in the accessory, and it is better to replace it with a thinner or open version.
Why do new glasses make the sound quieter?
Modern protective glasses have become thicker for better impact resistance. In addition, an adhesive layer around the entire perimeter (Full Glue) creates an additional barrier to sound waves that previously freely escaped through micro-slits between the glass and the body.
When speaker repair is required
If all software methods and cleaning do not produce results, a hardware malfunction is likely. The speaker is a consumable item that degrades over time. The membrane may lose elasticity, the coil may partially burn out, and the contacts may oxidize. In such cases, software amplification will only add wheezing, but will not make the sound louder.
A sign of the need for replacement is the presence of extraneous noise: crackling, hissing or “gurgling” even at medium volume. It is also worth paying attention if the sound disappears periodically or becomes quieter when the device heats up. In this situation, the only correct solution is to replace the speaker module at a service center.
The cost of replacing a speaker is usually low, and the procedure itself takes from 30 minutes to an hour. Specialists use original spare parts or high-quality analogues, which guarantees the restoration of factory volume settings. Do not try to disassemble the phone yourself if you do not have experience, as you can damage the cables or break the moisture protection.
If after cleaning, adjusting the equalizer and resetting the settings, the sound remains quiet and hoarse - this is 90% a sign of a physical malfunction of the speaker that requires replacement.
Why did the sound become worse after updating Android? quieter?
System updates often change sound processing algorithms or reset custom equalizer settings. Also, new versions of the software may include hearing protection features that artificially limit the maximum volume. Check your audio settings after the update and disable options like "Hearing Safety" or "Absolute Volume" in the developer menu.
Is it possible to increase the volume through the developer menu?
Yes, there is a "Disable Absolute Volume" option in the developer menu. Although it is more often used for Bluetooth headsets, on some devices switching it may change the logic of the internal amplifier. To get there, enable developer mode by clicking 7 times on the build number in the "About phone" section.
Does the telecom operator affect the call volume?
The operator does not have a direct effect on the speaker volume, but the quality of the voice compression codec may change. If the signal is poor, the network switches to older standards (2G/3G) with low voice quality, which makes the interlocutor seem quieter and more unintelligible. In areas with strong 4G/VoLTE reception, the sound is usually clearer and louder.
Will a factory reset help?
A Factory Reset will remove all third-party applications that may conflict with audio drivers and return the system audio settings to the original. This is an effective method if the problem is caused by a software glitch, but will not help if the speaker is dirty or physically damaged. Don't forget to back up your data before resetting.