Microphone problems - Redmi Note 8 Questions & Answers

When the mic is used either by a call or a recorder it doesnt work for 8-10 seconds, then it makes a loud beep noise (like a capacitor squeeling) then it crackles a bit and starts working. Is this a hardware problem or is it something with the system?
Ive tried disabling permission for everything that uses a microphone, still the same. Running latest patch that the phone let me auto update.

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Keep losing sound

Nb... actually I've discovered that sound seems to disappear altogether, not just for calls.
I'm having an odd issue with my TP2: audio seems to inermittently stop working during calls.
Sometimes it works fine and other times there's no audio at all (either held to ear or on speaker). On speaker, there's a buzzing noise but nothing discernable at all.
The change from audio to no audio can occur mid call, but I haven't figured out if anything in particular is happening at the time. If I soft reset I get audio back, although it does sometimes also come back on its own.
I'm using a 6.5 rom (TPC 5.5) and the most recent radio.
Any ideas?
Anyone have any suggestions on this?
why dont you hard reset???

[Q] CM7 - Call sound comes from behind

Hi,
yesterday I restarted my HTC Desire GSM running CM7 and during the first call I noticed that the voice of my interlocutor was caming from behind the phone (rear speaker). I tried turning the Speaker on/off several times during the call and rebooting as well but still the call speaks out from behind.
Any clue/suggestion for me? That's pretty uncomfortable
Sounds weird, do you mean it goes into speaker mode? If you do maybe there is a problem with your accelerometer. In the Sound settings is 'Flip for speaker' on, if so try turning it off. This setting may be causing your phone to enter speaker phone even though your phone isn't flipped.
I'm not an expert but maybe this is causing the problem.
It's not exactly the "speaker" because the volume is very low, exactly like a normal call but instead it comes from the rear speaker. Moreover I can turn the speaker on, which makes the volume louder but still from behind the phone (as it should be).
However I checked the call settings and the proximity is disabled. I tried enabling/disabling a couple of times but no luck at all
Any other suggestion please? Still can't hear from the right side of my phone and rear speaker definitely s**ks

galaxy s3 i747 in call volume very very low

Since the last two days I have been suffering from a low volume in the internal speaker during calls. The other person's voice is so low that it's almost inaudible. I can hear the caller on speaker though.
Moreover when the answering machine or IVR is on (during a call like if you call a call center and you need to go through the ivr), the volume is better, though not loud as normal but the moment a human starts talking, the volume drops.
I tried testing the hardware by dialing *#0*# and the receiver does emit sufficiently loud sound. So the hardware looks fine.
I also updated my os from 4.3 to 4.4.2 yet no change in the volume of the internal speaker. I also rebooted, reset my phone, still the problem persists.
I'm on a completely stock rom with no modifications or rooting.
Please help.
Sounds like hardware to me, especially if you're full stock. I had the same thing happened before and I swapped the speaker with a spare dead S3 and the problem was fixed. It may sound louder when a machine answers because its not speaking into a mic and background noise doesnt have to be filtered on that end.
DocHoliday77 said:
Sounds like hardware to me, especially if you're full stock. I had the same thing happened before and I swapped the speaker with a spare dead S3 and the problem was fixed. It may sound louder when a machine answers because its not speaking into a mic and background noise doesnt have to be filtered on that end.
Click to expand...
Click to collapse
Yup I also think it might be a hardware bug, which I'm trying hard to ignore
Btw what do you make of the hardware test that does emit a sufficiently loud sound from the receiver? I dialed *#0*#0 and tested the receiver, which works okay. So I thought it might not be a hardware bug.

Phone loses dial tone after half hour, help!

Basically, if I boot up my phone and try to make a phone call (or immediately receive one), the call goes through no problem.
After setting aside the S2 for about 30 minutes, if I try to make a call or anything of the sort - the call connects but I don't hear dial tone, audio, etc. Just 0 sound. I can fix by rebooting.
I have tried flashing a few different ROMs to no avail. Currently downgraded to 4.3.1 AOKP Hercules (cyanogen kernel) from Beanstalk 4.4...
Messed around with settings and such multiple times. It's almost like the sound just shuts off after not touching the phone for a while. I can still use MMS, SMS, and data while this problem occurs. And people on the other end can't hear me either.
What might be the problem?
Update: So it appears to be an integral sound issue. For a few hours, data/service/calling works and WiFi doesn't. Then, all of a sudden, WiFi starts working and this audio bug occurs. I can use earphones to listen in on calls before the bug happens, but if I try to plug in headphones and make a call after the bug it just crashes the phone.
jintox said:
Update: So it appears to be an integral sound issue. For a few hours, data/service/calling works and WiFi doesn't. Then, all of a sudden, WiFi starts working and this audio bug occurs. I can use earphones to listen in on calls before the bug happens, but if I try to plug in headphones and make a call after the bug it just crashes the phone.
Click to expand...
Click to collapse
I think it may have something to do with your radio.
What is your Baseband version?
I'm using UVMC6
http://direct.xda-developers.com/wiki/Samsung_Galaxy_S_II/SGH-T989/Radios

Sound issue

My sound sometimes gets real low and turning it up does not make it as loud as it supposed to be. Also sometimes 1 speaker works only or no sound works at all. I believe rebooting works but didn't do much testing with that to make sure.
Is there a way to check if sound issues are rom side or hardware side?
EDIT: Found out it happens if I plug in headphones then take them out. Speakers stop working. Headphones work but when I unplug them speakers stop working.

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