All telephone models have a sound-to-electricity converter - a microphone. The microphone converts sound waves into electrical impulses. But for this process to occur normally, sound must reach the microphone unhindered.
By analogy with the human ear, where there is a sound detector (this is what is called the ear) and a sound transducer (inner ear), the same is done in a mobile phone. There is also a sound catcher (a small hole in the phone body or sound-conducting material of the body (this is done on older Samsung models)), which directs the sound to a transducer - a microphone.
On at the moment phones use 3 types of microphones: carbon (the vast majority of phones have it), electronic (it’s on expensive Sony Ericsson and Nokia phones) and the new electronic one with increased sensitivity (it’s on new Nokias above the middle class). A special feature of phones with an electronic microphone is that they pick up sound through almost the entire body of the phone, resulting in voice clarity and audibility. quiet sounds much better.
The pictures show different options sound detectors in phones:
Description of types of microphone failures.
How can you tell if your microphone is broken?
This can be seen from the fact that during a conversation the other party:
- Can’t hear you or can’t hear you well (or the interlocutor can hear you very quietly, like a whisper)
- He hears every other time (with one call everything is fine, but when he calls another time he doesn’t hear)
- The subscriber hears extraneous noise or even a hum, and the voice is weakly audible or not heard at all.
In the first case you just need to replace the microphone, as this usually happens after a fall or after “bathing” the phone. Electronic microphones, when replacing, must be soldered carefully and carefully, as they are very sensitive to overheating and the ingress of any liquids, so replacing an electronic microphone is more expensive. Carbon microphones are easier to replace, so the cost of replacing them is lower (and so is the microphone). Sometimes, when you can’t hear it at all, the problem is not in the microphone, then you need to look, maybe something happened with the board, or maybe something with the microcircuit and auxiliary elements. This requires time for research, which increases the repair period.
In the second case research is required to identify real reason, since it may not be in the microphone. This is not a simple case. Therefore, repairing such a breakdown takes a long time. There was such a case with a new electronic microphone on Nokia, but they still sorted it out and helped the owner of the phone.
In the third case, most often it occurs after a poor-quality repair, or after a phone being repaired has fallen. Necessary
There are often cases when users of Xiaomi smartphones immediately after purchase are faced with incorrect microphone operation. The owner of Redmi 3s contacted us with this problem; the interlocutor could not hear him well; in addition, gurgling, crackling and other interference could be heard mixed with the voice. Unfortunately, there is no single solution to this problem; theoretically, there can be many reasons why a microphone may not work properly. We have collected for you the most popular and effective solutions from various forums that should definitely help.
Simple solutions
Network quality check
Quite often, interference occurs due to poor quality of the cellular network. If your interlocutors complain about poor hearing, look at the network quality indicator in your smartphone; if it shows a weak connection, then you may need to contact your cellular company operator for help or change your SIM card to another one.
Physical impact
If you have a case on your phone during a call, you should make sure that it does not cover the microphone openings. It happens that manufacturers of non-original cases forget to take into account certain features of the device and produce unfinished cases that can cover the camera and interfere with proper operation sensors and sensors on a smartphone.
Many Xiaomi phones have two microphones on the body for better noise filtering, usually one is located on the bottom edge of the phone, the other on the top. If it turns out that one of the microphones is covered with a cover, then the most correct option would be to simply change the cover or make a hole.
Echo during a call
In some cases, during a conversation, the microphone may pick up the sound coming from the speaker, resulting in repeated repetition, which is similar to an echo. To fix this, you need to activate the noise reduction system in your phone; you can find it by going to “Settings” - “Sound” - “Noise reduction during calls”.
Some models of the Redmi line do not have this setting.
Disable Google Now
If you have Google Now installed on your phone, which is activated by the phrase “OK, Google,” it may be causing interference. It's worth trying to disable it. We go to “Google settings”, there we open the “Search” and “Voice” sections and disable the definition of the phrase that activates the assistant.
Disable automatic network detection
Our readers share another tip (many thanks to them). In some cases, one operator may have a very poor connection (gurgling, intermittency), while on the other everything is fine. In this case, you can try the following solution:
- Go to Settings
- Choose your operator
- Click "Select Network"
- Disable the “Select automatically” feature
After this manipulation, the quality of communication should improve.
Complex Methods
Microphone check
If the previous tips did not help you, then the problem is a little more serious. First, you need to check that the microphone is working properly. This can be done in two ways:
- Record something on the built-in voice recorder and listen for interference
- Perform a microphone test in the engineering menu (type *#*#64663#*#*)
If it turns out that the problem is in the microphone itself, all that remains is to change it. If the test does not reveal any problems, then the reason is software, read the following points.
Turn off noise reduction
One of the most common problems is the noise reduction system not working correctly. Go to settings - sound - noise reduction. Let's try there different settings, for example, change the number of microphones or disable this function altogether. If you do not have this menu item, then you will not be able to change the settings using the standard method, but there are other ways.
Disable noise reduction via software. Install a program called QuickShortcutMaker and open it. In the “Actions” section in the search, write “Other settings”. “Phone” will appear, go there and open “Other settings”, select “View” there and get to the required menu. There we turn off noise reduction.
Alternative option. In QuickShortcutMaker, select the “Actions” section, and write “sim parameters” in the search. A phone will appear, through which you need to go to “Sim Settings” - “View”. There we uncheck the noise reduction box.
If the previous method did not work to disable noise reduction, then you can try to do it through system files. We warn you about the dangers of editing the /system/build.prop file; you assume all responsibility.
For this method you will need superuser (root) rights.
- Install any root explorer to edit system files
- Go to /system and open the “build.prop” file in a text editor
- We find the following line: persist.audio.fluence.voicecall=true
- Change the word “true” to “false” at the end of the line
- It should look like this: persist.audio.fluence.voicecall=false
- Reboot the phone
If you cannot find or open this file, you can try to do this through special applications created for editing the build.prop file. There are a huge variety of them to suit every taste; programs with similar names are especially popular: Build Prop Editor and build.prop Editor. They are available in the google play market; to edit a file through them you will also need root access.
Problem after recording video
Some models have a bug where microphones flip over after recording video in landscape mode. This issue has been fixed since firmware 6.1.29. In addition to the firmware, you can fix this glitch by editing the system file.
Using root explorer, edit the file /system/etc/audio_device.xml. It is necessary to change a couple of values as highlighted in the example. It is worth warning that after these manipulations, when recording video, when the phone’s touch buttons are on the left, the left and right audio channels will be swapped.
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Modem firmware software error
However, a popular reason for distorted sound is unfinished modem firmware. This can only be cured by updating or installing custom firmware. However, there are workarounds that help some users. If one of the tips below helped you, then the problem is definitely in the modem firmware.
- Turn off Wi-Fi before talking
- In the network type settings, set “3G only”
- Disable mobile internet for the duration of the conversation
If you don't have it on your phone important information, you can try resetting all settings and user data.
At the moment, these are all known ways to correct incorrect microphone operation. If you know any other methods, write in the comments, we will be happy to add them.
Why can't I hear or be heard when I call on my mobile phone?
- hardware malfunction of your phone
- Husband's phone has a hardware problem
- problems with communication at the point where you are
- communication problems at the point where the husband is
- call another person from your phone, if everything is in order, then a hardware malfunction of your phone is excluded
- ask someone you know to call your husband, if everything is in order, then a hardware malfunction of your husband’s phone is excluded
- change the place from where you called and call your husband again, if everything is in order, then you had a connection problem
- if excluding the three previous reasons, then there will be a problem with communication at the point where the husband is
The microphone and speaker may break on the phone. I had this. I called, but they didn’t hear me, but I heard what they were saying to me, and then they stopped hearing me.
If this is a connection, an acceptable zone, wait a while, if nothing changes, then someone has a problem with the phone :)
Although the reason for the lack of audibility was not fully clarified, rebooting the phone helped solve the problem. They simply turned off the phone, and after a minute or two turned it on again. It is possible, of course, that some contacts are loose or something else.
Check your device by calling another number - if everything is in order (audibility and intelligibility for both) - it’s time for your husband to visit the service center, and if you don’t hear the interlocutor in this call, then it’s for you. There are no miracles in the world!
And what exactly has gone wrong in the device (speaker or radio channel module) - the experts will figure it out.
And to your operator cellular communication did you apply? It is advisable to go to your operator’s office and explain everything in detail there. If you both cannot hear each other, then the microphone and speaker in both phones cannot be faulty.
It also matters whether you both have problems calling other numbers? If not, then the phones are most likely working. And also - do you both use the services of the same or different telecom operators? If the operators are different, then solving the problem is more complicated.
I would also try to insert your SIM cards into other phones. Perhaps some of you have a damaged SIM card. If this is the case, then it is worth replacing e.
If you cannot hear or the interlocutor cannot hear you when making a cell phone call, you should check the phone and the quality of communication from the operator. To do this, you need to call another number and check your audibility. If you have the same problems, look for their cause in your phone or smartphone. Often, simply rebooting the device helps.
There may be four problems:
How can you rule out possible problems? In order:
Can't hear the sound on your phone? The tips in our article will help you solve this problem.
With the release of new phone models, it began to replace all existing devices. For a long time now, you can use it to listen to music, play games, watch videos and even work. Unfortunately, it can experience problems when the sound on the device disappears.
The main signs that your phone has a sound problem:
- Complete absence of sound signals.
- Echo, hissing during a conversation.
- Frequent changes in the interlocutor's voice, interruption in voice volume.
- Melodies and signals are heard quieter than before or are not reproduced at all.
To find out what the problem is, you need to check the device. Now you don’t have to go to a repairman; you can do it yourself.
First, check the volume control. It is usually located on the phone body on the right or left side. After pressing the button, make sure that the slider is in the maximum position. The volume in games or when listening to music can be adjusted with this button.
If it doesn't help, move on to the next step. Let's try to look for an error in the device settings.
To do this, you will need to go to the menu on your smartphone. In the "Settings" window, select the "sound" section. Next, select “Volume” and move the slider. These steps will help you adjust your phone volume.
The reason for the lack of sound may be that the speaker is clogged or broken. If the speaker is clogged, it is enough to wipe it cotton swab or a napkin, and then blow it off.
To check if the speaker is working properly, just switch the phone to speakerphone. If the interlocutor can be heard well, then the cause of the breakdown is in the dynamics.
Sometimes new installed programs cause sound problems. Look at which of the programs you installed last and try to remove them.
As a last resort, you can return the phone to . If even this method does not restore your sound, then the reason lies in the breakdown of the device.
If you lose sound, don't despair. You can try to fix your phone at home. Try the methods described above to find the cause. In this case, you won’t even need to disassemble the device.
But, if you were still unable to correct the situation and get the sound back, the best solution would be to send your phone in for repair.
Dear readers! If you have any questions or comments on the topic of the article, please leave them below.