Database Develop

in-call static/interference/resonance/noise problem

Hi guys,
i think there's a problem in my i9000;
whenever i make a call, i can hear low static interference in the background.
i searched both on xda and elsewhere, and although some other people complained of this problem, no one was able to determine the cause or provide a solution.
i tried different roms, froyo and gingerbread samsung roms, in addition to cm7, with different kernels and modems, heck i even changed my csc(just for sake of changing everything to make sure.. all for nothing. the problem persists.
Does anyone know what might cause such problem and how it may be solved?

i have exactly the same problem. Like you; i tried every combination which i can. I think main cause of the problem is hardware related. But my opinion is ,it can be fixed with device drivers. I looked at service manual. In the speaker part of the service manual,you can see there are two inductors and one capacitor before the speaker module. You can see the full circuit in Service Manual Page 42.
h**p://img191.imageshack.us/img191/2383/speakerj.jpg
I think these inductors(L209,L210) are interferencing with the GSM frequencies and making that static sounds on the background.
We need someone who is an expert on linux and device drivers. Maybe he can show us to find a way to break this circuit(temporarily turn off B1 and A2 pins) in a call so it will not make that sounds.
In the other hand we may have defect phones. May be the only way is to change some parts.
sorry for my bad english.

I think there's something wrong with the speaker itself.
I'm taking the phone to samsung's maintenance to see what they have to say about it.
I'll report back once i get to the bottom of this..

Same here, but it's not constant, just happens enough to be noticable, bloody annoying, and only started (or I only noticed it) a couple of days after JVP. Will be interesting to see what you find out...

One possibility, do you have your phone in a magnetic flip case? Worth checking
Sent from my GT-I9000 using XDA Premium App

slaphead20 said:
One possibility, do you have your phone in a magnetic flip case? Worth checking
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
No magnetic flip case, just a hybrid (plastic back+sillicon frame) cover.
I even took it off for a while to see if it was causing the problem, but no.

I went to samsung service center and they said it will cost about 200$ because the ear piece comes with the touchscreen..
Meaning i would have to pay for a new touchscreen even though i only need the ear piece.. How about that for service.
I checked ebay and found the whole ear piece+speakerphone+headphone jack in one bundle for 15$
so guess what my next step will be??
Buy and install the ebay part, sell my i9000(never liked tw anyway+cm seems a long way from home).. Had enough samsung for one lifetime

are you sure about the sound is coming from the earpiece ? i am asking because few weeks ago i was also assuming that the interference sound is coming from the earpiece . But i realized that it is coming from the rear speaker. Can you test it ?. In a call ,turn back the phone and put speaker hole to your ear. The interference sound is so loud that you can hear it from the earpiece hole.

yaso06 said:
are you sure about the sound is coming from the earpiece ? i am asking because few weeks ago i was also assuming that the interference sound is coming from the earpiece . But i realized that it is coming from the rear speaker. Can you test it ?. In a call ,turn back the phone and put speaker hole to your ear. The interference sound is so loud that you can hear it from the earpiece hole.
Click to expand...
Click to collapse
my god, i think you're right.. it does sound like its the speaker..
what can i do to fix it?

jaikat said:
my god, i think you're right.. it does sound like its the speaker..
what can i do to fix it?
Click to expand...
Click to collapse
jaikat said:
my god, i think you're right.. it does sound like its the speaker..
what can i do to fix it?
Click to expand...
Click to collapse
This is the question which i am also looking for answers
Everyday i am searching for answers. Only a very few people experiencing this problem.
I think this problem is coming from the inductors in the speaker circuit part. You can look my first post .
yaso06 said:
i have exactly the same problem. Like you; i tried every combination which i can. I think main cause of the problem is hardware related. But my opinion is ,it can be fixed with device drivers. I looked at service manual. In the speaker part of the service manual,you can see there are two inductors and one capacitor before the speaker module. You can see the full circuit in Service Manual Page 42.
h**p://img191.imageshack.us/img191/2383/speakerj.jpg
I think these inductors(L209,L210) are interferencing with the GSM frequencies and making that static sounds on the background.
We need someone who is an expert on linux and device drivers. Maybe he can show us to find a way to break this circuit(temporarily turn off B1 and A2 pins) in a call so it will not make that sounds.
In the other hand we may have defect phones. May be the only way is to change some parts.
sorry for my bad english.
Click to expand...
Click to collapse

i have this problem too, i live in Romania, i tough my phone was broken, but a friend's phone also does that.
i notice it when making call while 3G data was running in the background. If 3g is off = no noise.
Also i have noticed, the way you hold the phone affects it. try holding it with 3 fingers to your head the covering the mic hole with the other. you should hear some interference right there. so it's probably: speaker+ extra sensitive mic + some antenna things
Also my friend had the phone for some months now and never noticed it i searched the web and we're not alone, i found this discussion on a couple of other forums, still nothing to do, or nobody reported back after they whet to the warranty service. i would go, but i don't have any warranty on mine.

I'm also from Romania and I noticed this annoying issue today. All my other friend with Galaxy S also have this problem, so I guess it's a normal thing.
The only solution, I guess, is to use 3G networks, at the risk of draining a bit more battery.

so bottom line is that on mine, i hear noise/buzzing/interference when i use 3g networks both on the speaker on the back and the earpiece (it's louder if i use 3g data while i'm making a call) - the issues goes away completely in gms(2 g) mode
and it depend on how i'm holding it - it's louder if i grip the phone in my hand (probably the wireless signal is lower and the phone increases the power needed to communicate to the network thus experiencing buzzing sound from the speakers like radios did back with the first cell phones before receiving a call)
so i guess i'm not the only one, right?

This issue is normal I think. No big deal. If the noise however gets so loud that it interferes with your call, get it changed. But the new ones you get might have the noises too. So what is important here is to keep the noise to the minimum.
With / Without the noise is totally an unknown cause now. At least have it settled to the least noisy.
*This is happening to everyone who is getting the phone since November 2010

I confirm this issue with more models.
Hi guys!
Bought myself my GT-S5570 (Galaxy Mini) a couple of months ago. This is my first Android experience. At first I was pleased, but then I noticed this static noise whilst in call. It's like, suddenly I can have ill-isch, distorted, "noise spikes" sort of things. Left my phone in for service under warranty. When I had it back, it was still messy. Bought myself a GT-5660 (Galaxy Gio) a week ago, thinking that this one would clear the issue. It's still there, though. I'm wondering if this is something that affects the whole Galaxy series, even the tougher models like S/S2.
Related threads, by me:
android.net/forum/samsung-galaxy-mini/60951-sudden-volume-spike-during-call.html
androidforums.com/samsung-galaxy-s/307523-samsung-galaxy-s-gt-i9000-static-ear.html

yesterday my cousin bought i9000 too. First of all i looked for the noise. It is interesting that that phone is nearly noise free. If i gave 10 point noise to my i9000 than that phone will be 2 points. You can hardly hear the noise. After that i get her SIM card and test my phone with that sim card.Noise is still there.I make that phone software same with my phone. That phone still has no noise.
I think the problem is in phone parts. Maybe a defected series of speakers used in our phones. I will buy a new speaker module on internet. I hope that fix my problem.

For me it depends more of the network I use than the phone. It happens sometime with an iPhone.

as i stated in my previous post in this thread, in my case i was sure it was the loud-speaker, i say "was" because i sold the phone, and thats the reason why i didn't come back to this thread since..
it seems there was something wrong with the loudspeaker(on the back of the phone), and it was, at least to me, one of those things where a person might not really notice unless you're looking for it.. my bad luck had caused me to flash a certain modem and the reception was bad, so once i reverted to the previous modem i was checking for the sound clarity and that was when i first noticed the static during calls..
then i realized it was coming from the speaker, as one good man in this thread suggested. i couldn't handle it though, i could hear it every time i make a call..
it didn't make a difference whether i was on 3g or gsm or both, it was always there, unless i went into airplane mode..
so i ended up selling the phone, and bought another, but before i had bought it i put my sim inside and made sure there was no static, and there isn't, whatsoever.. thank god.
i'm sorry i couldn't find any other solution to the problem, samsung service here had said they would replace the speaker, as the part comes on its own, unlike the case for the phone speaker, which, according to samsung, is bundled with the screen, and if i had wanted to change it i would have had to pay something like 200$ to fix...
those who have this problem, check if its the loudspeaker on the back of the phone is the actual culprit, and if it is, try to find a way to replace it or something, that is if it bothers you this much. or you can just sell the phone, there's a 99% chance those who buy it won't notice anything, because they're not looking for it..
good luck guys..

Speaker Crackle/Rattle

Has anyone observed speaker crackling above mid-volume? My top speaker has a buzzier character that gets more noticeable as you play louder and bassier/fuller sounds. I'm not sure if it's crackling or something rattling inside the case. The lower speaker sounds clear and normal.

I have this as well.

janedoe5000 said:
I have this as well.
Click to expand...
Click to collapse
Same

Mine doesn't

I made a short recording to show what I mean. The sample is from plugging in my magnetic cable a couple of times. The charging sound is particularly annoying to hear crackling.
I may have to send my unit back to Clove for warranty service. Bummer.

I have the same issue, and yes, it is the charging sound that is the most annoying, it sounds exactly the same as yours, is if something is loose inside and vibrates.
Until now I was willing to live with it since apart from that I love this device... until yesterday evening that is, when I realized that also the gyroscope calibration is way off (when trying to play Doodle Jump) and there doesn't seem to be a way to do a system-level calibration of that thing anymore. There used to be in older Xperia models in the service menu. Now I'm thinking of sending it back, which I really would rather not, having already configured everything to my liking...

[Q] Others can't hear me

Bought Xperia Z3C and from the first day some calls didn't work well... Others couldn't hear me about 60-70% of the calls, sometimes they heard like strong wind is blowing into the mic and when I put the call on loudspeaker then it worked, they heard me loud and clear.
So I took the phone back and ordered a new one, cause I really like Z3C, even more, if it would work with no problems
So my new, second Z3C, same green beauty - but same problem! I tried repairing with the first phone and tried doing the tests, neither helped. Only this time about half of the calls act like that. Sometimes if I put the call on speaker and then back, it works again, but not always.
So my question would be - Has anyone else had this kind of problem? And if so, what did You do? Is there even anything to do? Is it hardware or software?
There is no other phone I would like but it would be silly for me to try the same thing third time.

sorry to hear that,i guess that when you take the calls ,you cover the loudspeaker at the bottom of the phone
Sent from my D5833 using XDA Free mobile app

Similar thing happened to me, I had to yell first few days untill I discovered I had a bad habit from old mobile phone.
When i talk and holding the phone, my thumb is on the one side, three fingers on the other side, but that little finger is on the bottom, like i hold the phone not to slip down.
And the mic is positioned exactly so my little finger would cover it. That was my reason people couldn't hear me.
I doubt it's your case, but try to see if you do the same thing

Agree with others -- the mic is in a slightly odd place and I had to adjust the way I hold the phone to avoid blocking it in some way. Aren't the mics usually on the bottom left instead of the bottom right like the Z3c?

exact same problem
stinarammul said:
Bought Xperia Z3C and from the first day some calls didn't work well... Others couldn't hear me about 60-70% of the calls, sometimes they heard like strong wind is blowing into the mic and when I put the call on loudspeaker then it worked, they heard me loud and clear.
So I took the phone back and ordered a new one, cause I really like Z3C, even more, if it would work with no problems
So my new, second Z3C, same green beauty - but same problem! I tried repairing with the first phone and tried doing the tests, neither helped. Only this time about half of the calls act like that. Sometimes if I put the call on speaker and then back, it works again, but not always.
----
I have the same problem in All voice communication apps and normal calls.
If i test the microphone at The built in test i get no problem but in skype, Facebook and All other things that uses my Mic it cuts off and makes a windy sound. I was allmost ripping my own head off in anger and confusion because everybody i call is making me say things 5 - 10 times. And now i see im not the only one... What to do? Great phone beside that and headphone and aux volume is adjusting it self..
Click to expand...
Click to collapse

stinarammul said:
Bought Xperia Z3C and from the first day some calls didn't work well... Others couldn't hear me about 60-70% of the calls, sometimes they heard like strong wind is blowing into the mic and when I put the call on loudspeaker then it worked, they heard me loud and clear.
So I took the phone back and ordered a new one, cause I really like Z3C, even more, if it would work with no problems
So my new, second Z3C, same green beauty - but same problem! I tried repairing with the first phone and tried doing the tests, neither helped. Only this time about half of the calls act like that. Sometimes if I put the call on speaker and then back, it works again, but not always.
So my question would be - Has anyone else had this kind of problem? And if so, what did You do? Is there even anything to do? Is it hardware or software?
There is no other phone I would like but it would be silly for me to try the same thing third time.
Click to expand...
Click to collapse
I had this kind of a problem on the latest firmware (.77) sometimes. How about you try downgrading to an older firmware? Like the .93 firmware which can also be rooted
Sent from my D5833 using XDA Free mobile app

Got the same problem. After disabling "noise cancellation" (not sure how it's named in English FW) in settings > Call problems is resolved.
But now everyone hears everything within range of the main mic and thats not cool.
Can anyone confirm its related to 23.0.1.A.5.77 Firmware?
On previous version didn't had any issues except phone went underwater and died, and new one is already on the newest fw ;/
Don't want to do root due to guarantee issues after this.

hiryu_pl said:
Got the same problem. After disabling "noise cancellation" (not sure how it's named in English FW) in settings > Call problems is resolved.
But now everyone hears everything within range of the main mic and thats not cool.
Can anyone confirm its related to 23.0.1.A.5.77 Firmware?
Click to expand...
Click to collapse
+1 the same issue,
serviceman flushed the original firmware twice
nothing helped, they even refused to refund saying that they can not identify the problem .
Farewell guaranty, I'll try CM mb that will help.
The problem is floating, suspect bad mic contact or bad capacitor installed.
both require disassembling for proof.
Service tests shows that mic is ok.
Does anyone know how to get voltage\capacity curves from mic without disassembling ? mb some test pins on the back ?

olomagik said:
+1 the same issue,
serviceman flushed the original firmware twice
nothing helped, they even refused to refund saying that they can not identify the problem .
Farewell guaranty, I'll try CM mb that will help.
The problem is floating, suspect bad mic contact or bad capacitor installed.
both require disassembling for proof.
Service tests shows that mic is ok.
Does anyone know how to get voltage\capacity curves from mic without disassembling ? mb some test pins on the back ?
Click to expand...
Click to collapse
Do you can tell what is the sound recorded by 2nd mic? Mine is very low, like almost subwoofer
And on what Firmware you are?

stinarammul said:
Bought Xperia Z3C and from the first day some calls didn't work well... Others couldn't hear me about 60-70% of the calls, sometimes they heard like strong wind is blowing into the mic and when I put the call on loudspeaker then it worked, they heard me loud and clear.
So I took the phone back and ordered a new one, cause I really like Z3C, even more, if it would work with no problems
So my new, second Z3C, same green beauty - but same problem! I tried repairing with the first phone and tried doing the tests, neither helped. Only this time about half of the calls act like that. Sometimes if I put the call on speaker and then back, it works again, but not always.
So my question would be - Has anyone else had this kind of problem? And if so, what did You do? Is there even anything to do? Is it hardware or software?
There is no other phone I would like but it would be silly for me to try the same thing third time.
Click to expand...
Click to collapse
I had this problem, people did not understand what I said, TrackID was struggling to identify music. I left a message on my mailbox and could barely hear, changing the phone position helped a bit but it was still not loud. Sent the phone in repair and now it's perfect, I can whisper and people understand me

difto said:
I had this problem, people did not understand what I said, TrackID was struggling to identify music. I left a message on my mailbox and could barely hear, changing the phone position helped a bit but it was still not loud. Sent the phone in repair and now it's perfect, I can whisper and people understand me
Click to expand...
Click to collapse
You had issues with the main mic - I do not have (luckilly) such an issue. Only 2nd has some problems, but if I launch service tests it records sounds fine. With different quality than 1st mic but records properly.

Mine was recording fine in service tests also (replay sounded ok), but it was apparently not sufficient in calls. I think the service test is very sensitive, with my repaired unit I can whisper at 10 cm and still perfectly understand on the recording.

difto said:
Mine was recording fine in service tests also (replay sounded ok), but it was apparently not sufficient in calls. I think the service test is very sensitive, with my repaired unit I can whisper at 10 cm and still perfectly understand on the recording.
Click to expand...
Click to collapse
Please post reply to those questions:
1. Do you have enabled noise-cancelling function.
2. Which mic you test in service menu?

hiryu_pl said:
Please post reply to those questions:
1. Do you have enabled noise-cancelling function.
2. Which mic you test in service menu?
Click to expand...
Click to collapse
1) Tried both, no difference
2) Tested microphone

Microphone in Z3C is the worst part of the phone
Im also have problems, or people Im talking to via phone, cause previous phone which I still have - SGS 5 mini - has very sensitive mic.
Both my phones are watter proof, also has special membrane, but when Im callling one to another difference are HUGE.
I checked 2 phones of my friends, and thier Z3C's have the same sensitivity, but the dont complain, as suppose they are usualy yelling
In SGS5mini I can rotate phone around the ear and still very louldy and clearly someone can hear me, thera are little diffrences ofcourse, but in Z3C where even when Im trying to have microphone close to mouth sound is much quieter - moving the phone little bit and conversation can be irritating.
It already pissed me off 3 times so much that I ended conversation, because of complaining of the other people.
P.S. Before someone will ask - yes, I disabled noise cancelling function from the begining, also trying different sound settings in call and sound menu.

SOLVED - at least in my case
What I did till today was:
disable any sound "improvements" in menu
cleaning microphone hole with compressed air
After test I saw little improvement, but still I was merely heard by other caller.
Looking mixer_paths.xml tried few times changing parameters and found the right one to rise sensitivity of internal mic.
Below are unchanged section that I'm talking about - in bold specific value that we can rise.
Code:
<path name="handset-mic">
<path name="adc4" />
<!-- 67 % of 124 (range 0 - 124) Register: 0x231 -->
<ctl name="DEC3 Volume" value="[B]83[/B]" />
<!-- 63 % of 19 (range 0 - 19) Register: 0x15F -->
<ctl name="ADC4 Volume" value="12" />
</path>
I choose value=92 as this found to be still safe (don't use to high values as it can damage your device) and I'm pretty happy now of my Z3C
Prepared MOD for this change to apply from recovery.

I've sent mine for repair. They said everything is ok, since repair service does not test calling in real life - just service tests, where this issue is impossible to catch. Had to ask them for "special" test - calling from my phone to somebody, and checking the difference between Noice cancelling feature turned on and off.

Hi any mod for stock ?
My wife have z3c everything was fine just one day start cut off world etc.
Will try with disabled reduce noise option
Any other solution ?

Guys I had the same problem, solved it today
Mine was running latest android 5.0.2(23.1.A.1.28) Z3 compact.
In my Music application(Walkman app updated to Music)-settings-Audio Settings- Mic sensitivity set to High.
Other person can hear me crystal clear

I suspect this is a Bluetooth related issue. I have my Bluetooth always on and when driving and calling there is no issue on car kit. I found an workaround, when calling before connected I press loudspeaker and mute unmute

Question Microphone issue

Hi,
I am using S21 Ultra Snapdragon version. I am having issue with my microphone which is adjacent to charger plug. It only works when i put my mouth real close to it or at straight plane. During voice call, the person receiving my call complains of hearing voice in fluctuating volume (sometimes loud sometimes small in seconds). I am on latest firmware. I have already tried cleaning my the hole of microphone. Please help.
Thank you.

Qhycliss1 said:
Hi,
I am using S21 Ultra Snapdragon version. I am having issue with my microphone which is adjacent to charger plug. It only works when i put my mouth real close to it or at straight plane. During voice call, the person receiving my call complains of hearing voice in fluctuating volume (sometimes loud sometimes small in seconds). I am on latest firmware. I have already tried cleaning my the hole of microphone. Please help.
Thank you.
Click to expand...
Click to collapse
If a factory reset doesn't help, it could be a microphone hardware issue. Better to take it to the service centre and get it checked out. Somethings can't be fixed with a software solution

Thank you for your reply. I had tried factory reset but no help.
This phone was left as a gift to me and unfortunately, in my country, the official service center doesnt repair phones from abroad. Also, I had shown this to four technicians. One said its likely software because if mic was damaged it wouldnt receive any noise. Remaining had said it was hardware issue and all of their answers were different.(problem in microphone, problem in IC). Thus, Im quite reluctant to send them for repair.
Could you please help regarding possible faulty hardware. The problem is my phone sends fluctuating volumed voice during call either from sim or messenger.
Thank you

@Qhycliss1: Just interested to know: does the same symptoms occur when you make a voice recording? Eg with the samsung native voice recording app?
That may (or not) exclude microphone HW issues.

Hi and thank you for your reply.
While using official voice recorder, if i keep my mouth near the lower microphone then the voice is excellent. However, if i deviate my mouth by creating an angle (if i face the screen and record) the volume in recording decreases but still i can hear recording.

Of note, when I try loopback test (*#0283#), the rcv_1st mic has muffled sound but when i arch my hand to direct sound from mouth to mic) it is clear. I dont know if this is of any help.

Qhycliss1 said:
Hi and thank you for your reply.
While using official voice recorder, if i keep my mouth near the lower microphone then the voice is excellent. However, if i deviate my mouth by creating an angle (if i face the screen and record) the volume in recording decreases but still i can hear recording.
Click to expand...
Click to collapse
Sounds like a defective microphone to me. Sorry I can't think of a software solution to help.
If I was in your situation and repair was not an option, I'd probably end up use USB headset with mic or Bluetooth earphones for calls. It's not ideal, but don't know what else to suggest.

enigmaamit said:
Sounds like a defective microphone to me. Sorry I can't think of a software solution to help.
If I was in your situation and repair was not an option, I'd probably end up use USB headset with mic or Bluetooth earphones for calls. It's not ideal, but don't know what else to suggest.
Click to expand...
Click to collapse
Thank you so much for your help.
Yeah i think I have to use headphone till i get option for repair.

enigmaamit said:
If a factory reset doesn't help, it could be a microphone hardware issue. Better to take it to the service centre and get it checked out. Somethings can't be fixed with a software solution
Click to expand...
Click to collapse
I am no expert by any means but I have found this to be be an interesting mic check tool. dial *#0283# More info is always good.

whbell said:
I am no expert by any means but I have found this to be be an interesting mic check tool. dial *#0283# More info is always good.
Click to expand...
Click to collapse
Thank you for your reply. I had tried that code. There seems to be issue with rcv_1st mic.

Low front speaker volume during call and test SM-N950F

Hi,
I have a Note 8, now about 4years old. I began having issues with front speaker during calls about 2 years ago -about 2 months before warranty ended. First it was intermittent, about every 20calls, the speaker was so quiet, if I had aircon working, I could not hear anything.
During a period of about a year, it came so far that every call is problematic. I had a company phone with 2SIM so I put both in and I was ''happy''. BUT STILL MY 1000€ phone had speaker problems after 2-3years.
Now I got around - read got time to tinker - to fixing this issue and get my nice powerfull phone back in use.
As I was not to carefull with water (rain drops) on my phone - its IP67 or68 even - my first thought was that the speaker got wet. I ordered China replacement and bought 5pcs just to be sure one will definitly work.
Tried it with all 5 pcs + original and resault was the same. LOW volume. Yes I checked the contacts and cleaned them but no oxidation or any other clear issue with the HW.
I started googling for the problem and found that this was a problem on Samsung phones, though ''very'' rare. Solutions were usually in the line of restart/farctory reset/check settings of the phone and it will be OK. Tried factory reseting/settings.. and no luck, still have the problem.
Now I found a site with info on how to get inside Diagnostic SW in the phone. Got inside, tested and result was low volume.
I also found some info, that if the top mic had dust in the hole, the noise cancelation did somehow lower the output volume on the front speaker - not sure if this is legit info, I don't see how noise cancelation could interfere with received sound output. Just to be on the stupid safe side I removed the protection film on the case for the mic and cleaned it. No affect.
Now I do not know where to turn, if this is a SW or HW issue. I will be calling the Samsung distributor in my country tomorrow to ask what would be the solution, but from my previous experiance I am predicting the response - no solution or your motherboard needs replacing with cost of about 500€.
Just to get the idea how low the volume is - My wife and I bought same phone on same day, so I have a good comparison. Yes she does not have any issues and no I will not open her phone to check for my ''dead'' speaker funcitonality.
If I call the phones and put her on lowest sound setting, mine is still about 30% lower with setting to max. This result is same either phones are in same room or in different rooms - just to be sure the noise cancelation is not interfering.
Do you guys have any ideas/experiences with this issue? How did you fix it?
If you suggest reflash the phone, where can I find original ROM?
Hope you guys can help me.
Thanks.