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Hi Everybody,
My Magician recently developed an annoying problem and I wonder if anyone had this already:
The internal Mic occasionally goes to a very low sensitivity, i.e., when talking on the phone I have to scream so that the other person can hear me. This is also valid when recording a voicememo - on the playback I hear mostly static with a faint voice in the background.
Next, when using the headset, the voicememo records Ok but when talking on the phone, the other guy ears mostly the electromagnetic noise of the GSM (a loud "RRRRRRRRRRR").
I have noticed that this effect of the headset is started when the battery voltage goes below 3.4V and, as i connect the charger, the effect disapears.
I cannot relate the effects on the internal mic with the battery charge though; it seems to be more random....
It definitely is Hardware...but could it be solved maybe with a new battery?!
Any hunches?
Thanxs!
that is actually aproblem faced by all magician users. mine too worked just fine for firts 6 months then this annoying problem arose.
others could barely hear me.
i tried every sort of registry tweak, cleaned the mic and other thing but still nothing fruitful happened.
one fine day in an attempt to fx the internal mic myself i broke it (there is hardly any service backup for o2 devices here in New Delhi)
since then either i don't use it or use it with a bluetooth handsfree. no problems with bluetooth handsfree.
Yep, That´s right: No problem with the Bluetooth, but is just annoying to have to worry about carrying the BT device all the time and being always worried about its battery state - not to mention that I already lost one...
My guess is that the Analog-to-Digital Mic Chip is failing, or some part of the Mic circuit before that, or even the power suply to the said Chip....
That's just a lot of guessed troubleshooting to do without the knowledge of the elecronic circuit itself.
BTW, I just read your post about the mic problem - Did you have the problem as well with the wired headphones?
Thanks.
phantom201 said:
Yep, That´s right: No problem with the Bluetooth, but is just annoying to have to worry about carrying the BT device all the time and being always worried about its battery state - not to mention that I already lost one...
My guess is that the Analog-to-Digital Mic Chip is failing, or some part of the Mic circuit before that, or even the power suply to the said Chip....
That's just a lot of guessed troubleshooting to do without the knowledge of the elecronic circuit itself.
BTW, I just read your post about the mic problem - Did you have the problem as well with the wired headphones?
Thanks.
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Click to collapse
no! i don't face any problem with bundled earphones or even nokia stereo earphones or a bt handsfree even if i talk from a distance.
problem is only with internal mic.
i would suggest not to try anything yourself on the board. u may ruin ur device like me.
and yes, its annoying to carry tha bt set all the time. thats why i seldom use this devica anymore...i use it only as a mp3 player paired with sony mdr-e808 earphones and equalizer app. the sound is very crisp and punchy.
phantom201 said:
Yep, That´s right: No problem with the Bluetooth, but is just annoying to have to worry about carrying the BT device all the time and being always worried about its battery state - not to mention that I already lost one...
My guess is that the Analog-to-Digital Mic Chip is failing, or some part of the Mic circuit before that, or even the power suply to the said Chip....
That's just a lot of guessed troubleshooting to do without the knowledge of the elecronic circuit itself.
BTW, I just read your post about the mic problem - Did you have the problem as well with the wired headphones?
Thanks.
Click to expand...
Click to collapse
ok whose ready for a big surprise?
you're very right! its a hardware fault
i have 100% jumper solution
call +92-300-3812680 if you know a bit of soldering
fsl13 said:
ok whose ready for a big surprise?
you're very right! its a hardware fault
i have 100% jumper solution
call +92-300-3812680 if you know a bit of soldering
Click to expand...
Click to collapse
come on buddy! if you explain it here using images, u'll help so many users having the same problem.
pls consider.
we all need your help at he moment.
Mic Prob
mariner_heart said:
come on buddy! if you explain it here using images, u'll help so many users having the same problem.
pls consider.
we all need your help at he moment.
Click to expand...
Click to collapse
Faisal is very right buddy......it is purely jumper problem. I attached a snap of my Cell for you.......See the arrow... It is mic and we have to put the black color jumper on it.... Actually what happen with us.... we don't pay much importance to that jumper... there is a tiny whole on that jumper, put that whole on the head of mic so that our voice waves travel inside the jumper and go into mic.
It is my own experience that I put wrong side of jumper on mic and got panic three times . Thanks Faisal.....
ali786 said:
Faisal is very right buddy......it is purely jumper problem. I attached a snap of my Cell for you.......See the arrow... It is mic and we have to put the black color jumper on it.... Actually what happen with us.... we don't pay much importance to that jumper... there is a tiny whole on that jumper, put that whole on the head of mic so that our voice waves travel inside the jumper and go into mic.
It is my own experience that I put wrong side of jumper on mic and got panic three times . Thanks Faisal.....
Click to expand...
Click to collapse
DUH!
nooooooooooo!
i meant a pure jumper solution silly!...
the jumper solution is a quoted wire or in combination solded n jumped from the main sources or the parts in between to make a proper current flow in case of any resistance in between, loose or broken connection.
unfortunately the solution i was supposed to provide was scheduled that night is delayed due to some very sudden technical reasons. And for this i really apologize.
ill try to be as prompt as i can but the time cannot be defined so please forgive me for bringing hope and than delaying it. i know exactly how it feels but hey... patience can be more fruitful
Be Good! Be Well!
Mic Problem
fsl13 said:
DUH!
nooooooooooo!
i meant a pure jumper solution silly!...
the jumper solution is a quoted wire or in combination solded n jumped from the main sources or the parts in between to make a proper current flow in case of any resistance in between, loose or broken connection.
unfortunately the solution i was supposed to provide was scheduled that night is delayed due to some very sudden technical reasons. And for this i really apologize.
ill try to be as prompt as i can but the time cannot be defined so please forgive me for bringing hope and than delaying it. i know exactly how it feels but hey... patience can be more fruitful
Be Good! Be Well!
Click to expand...
Click to collapse
You are right Faisal......... but I told everything which I demonstrated...... And I solved the problem.... It can be possible that other people also did the same mistake which I did.... They can check their mic cover, as long as you can’t provide them any solution. Right??
For the main problem of the buzz noise when calling: I had it too. And it became gradually louder, more louder. And then (it became REALLY insopportable: when in call even the main speaker emitted that noise, and considerably loud) my phone resetted. It decided to not woken up unless I took the Sim out, and that was the end of my phone (the "phone" part: I used it as an expensive mp3 for quite a while). The noise was so loud that also attempting to connect to the carrier caused soft reset. Searching around I discovered that noise to be related to RF leakage.. you have been warned folks
Many guys are looking for a method of recording both sides of voice during a call. But it seems that HTC mobile phones including X1 Xperia don't support internal voice recording. Someone said that's hardware limitation. The only way to recording both sides voice is by turning on speaker.
I got an idea about fix this issue by adding simple circuit to X1 Xperia. Please see the attached file. It's a circuit diagram. As illustrated in the diagram, the signal of other side is introduced by a capacitance. Two voices, one from you, the other from the participant of your call, are mixed together and go to the ADC(analogue/digital converter).
Someone may be concerned about the self-excitation by the feedback. I think the phone works well even if you turn on the speaker, that would introduce the feedback. So the phone will work well if you introduce the signal via electronic form.
I haven't implemented this idea. Guys, please help to review this idea, and make the solution more applicable.
Thanks All!
(Diagram updated, potentiometer added.)
Lol
Maybe implement it and let us know I have a feeling that even with the decoupling capacitor it's still going to cause horrendous feedback. The speaker output will probably still excite the microphone and since the microphone is going to be d.c. shifted into the positive because of the lack of a negative supply. And that's without even knowing for certain the circuitry used here.
It's very interesting idea to make a fix for internal voice recording for X1. Usually speakerphone handsets are factory equipped with some circuitry which avoids unwanted feedback. I doubt that X1 doesn't have one.
You can always experiment with any cheap old phone to check if your idea has a chance to work. Maybe some potentiometer should be used to adjust depth of the feedback.
alias_neo said:
Maybe implement it and let us know I have a feeling that even with the decoupling capacitor it's still going to cause horrendous feedback. The speaker output will probably still excite the microphone and since the microphone is going to be d.c. shifted into the positive because of the lack of a negative supply. And that's without even knowing for certain the circuitry used here.
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Click to collapse
I don't quite understand what you mean. The capacitor between the speakerphone and microphone isn't a decoupling capacitor. It's a coupling capacitor for audio signals. It let audio signals go through and blocks direct current.
And could you explain more about negative supply? As far as I know, symmetrical power supply isn't common in nowadays electric appliance with battery. It seems that self-excitation has nothing to do with negative supply.
Thanks neo and Macko for your reviewing. Experimenting on an old phone is really a good idea! But it is still difficult since we don't know the exact circuitry inside X1.
It's really necessary to have potentiometer to control the amount of signal to be introduced. Thanks Macko!
so phones which cost nearly as much as a laptop cant do smthg that cheap phones can do?
this is a very necessary feature and learning that its hardware limitation is quite disappointing.
what about presenting this idea to htc so they can learn smthg
Nocturnal310 said:
so phones which cost nearly as much as a laptop cant do smthg that cheap phones can do?
this is a very necessary feature and learning that its hardware limitation is quite disappointing.
what about presenting this idea to htc so they can learn smthg
Click to expand...
Click to collapse
X1i is far more expensive than most laptops in discount stores and yes, seems that X1 can't do what SOME of cheaper phones do.
Dear HTC and SE: this is very very ugly dysfunction that XPERIA can't record calls properly! My wife's Nokia E51 does it perfectly. SHAME.
BUT caution please!
I've just done some research and found quite good working software solution of this issue. The problem is that signal from speaker isn't directly provided to DAC, so X1 just records what the mic "hears" from speaker, but if we use headphone or bluetooth headset, then recorded speech volume is far too low. But by applying some dynamics filtering on signal we can achieve desired gain of low volume part.
Here are instructions for volunteers:
- download and install some audio editor, for example CoolEdit
- download your recording from phone, open it in editor; low parts of wave are words of interlocutor
- apply a dynamic filtering as shown below:
- here are the results; as You see, low volume speech is gained by lots of dB, while your speech is almost untouched
My idea is to write some application working in background (as a service) which automatically applies such dynamic filtering DURING recording of a call. This is the best approach, but of course the same results can be reached by postprocessing.
Macko:
How is the voice quality after processing? I think it has some limitations.
sunshaking said:
Macko:
How is the voice quality after processing? I think it has some limitations.
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Click to collapse
Both sides are a bit distorted, which is unavoidable (dynamic processing distorts spectral envelope of signal) but acceptable. Of course all background sounds from opposite side are also gained, so do not talk to somebody who's mowing grass in the backyard
very interesting macko....if u can make such an app for X1..it ll be very useful and popular
Just downloading SDK and getting to work.
makro it is impractical to be forced to process all records. very bad for HTC
sunshaking said:
I don't quite understand what you mean. The capacitor between the speakerphone and microphone isn't a decoupling capacitor. It's a coupling capacitor for audio signals. It let audio signals go through and blocks direct current.
And could you explain more about negative supply? As far as I know, symmetrical power supply isn't common in nowadays electric appliance with battery. It seems that self-excitation has nothing to do with negative supply.
Thanks neo and Macko for your reviewing. Experimenting on an old phone is really a good idea! But it is still difficult since we don't know the exact circuitry inside X1.
It's really necessary to have potentiometer to control the amount of signal to be introduced. Thanks Macko!
Click to expand...
Click to collapse
This is exactly my point. Sorry I wasn't clear. As you say, no negative supply because we are running off of a battery. The signal itself is still an A.C. signal, so, in order to fit it within the confines of our supply it has to be DC shifted into the positive region yes? My point was that this DC level shift will be filtered by the capacitor for the reasons you gave, and so distorting the signal.
http://www.aray.cn/archives/3246
Studying how to disassemble X1.
I've disassambled my X1, but I can't find the microphone.
Here are two photos that might have micrtophone. I guess the microphone is attahed on the right side. But I really can't find it.
Haven't taken my X1 apart yet, but from the outside, the microphone is in the small hole/dent under the "OK" hardware button.
Anyone?
Has anyone found a solution to this hardware problem yet? I've been trying a hundred things with no success.
Is there a utility out there or is someone considering development on a utility that would allow one to use the nook speaker as a microphone? Maybe support added into the OS? Or is this not even possible on the nook?
nope.. same way why a new radio head unit won't turn your car speakers into microphones.. cuz they're speakers, not microphones.
dennisi01 said:
nope.. same way why a new radio head unit won't turn your car speakers into microphones.. cuz they're speakers, not microphones.
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Click to collapse
Well, I don't have an answer for the OP, but just so you know, a speaker & a microphone are essentially the same thing. Just like a motor is the same as a generator. Just depends on the circuit that it's connected to.
Cheers,
kev
bugeyed1 said:
Well, I don't have an answer for the OP, but just so you know, a speaker & a microphone are essentially the same thing. Just like a motor is the same as a generator. Just depends on the circuit that it's connected to.
Cheers,
kev
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Click to collapse
Yeah, kinda - but your not going to power your microwave by pushing your Pinto Wagon down a hill.
Even if the Nooks speaker were able to generate a sufficient electrical signal from audio induced vibrations (which it can't) there isn't any electronics there to interpret those electrical signals.
bugeyed1 said:
Well, I don't have an answer for the OP, but just so you know, a speaker & a microphone are essentially the same thing. Just like a motor is the same as a generator. Just depends on the circuit that it's connected to.
Cheers,
kev
Click to expand...
Click to collapse
True... back in the day I connected a pair of headphones to the line-in on a cassette recorder and was able to use them as a microphone to record my voice.
But as others have mentioned, it's mighly unlikely this would work on a Nook Color given the lack of supporting hardware.
martian21 said:
Yeah, kinda - but your not going to power your microwave by pushing your Pinto Wagon down a hill.
Even if the Nooks speaker were able to generate a sufficient electrical signal from audio induced vibrations (which it can't) there isn't any electronics there to interpret those electrical signals.
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Click to collapse
True & the only reason that I brought it up is in response to the statement;
"nope.. same way why a new radio head unit won't turn your car speakers into microphones.. cuz they're speakers, not microphones." seems to dismiss the OPs question as ridiculous.
Cheers,
kev
dennisi01 said:
nope.. same way why a new radio head unit won't turn your car speakers into microphones.. cuz they're speakers, not microphones.
Click to expand...
Click to collapse
It's obvious to me that you have absolutely no background in electronics, and you believe whatever label is put on a device. Have you never used one of the old style walkie-talkies? How about intercoms? Their speakers are both speakers and microphones. With your way of thinking, a nook would be nothing more than an ereader ... cuz they're ereaders, not tablets.
However, just because a speaker can be used as a microphone doesn't mean the supporting electronics are there, i.e. amplification stage, etc. That's why I asked the question.
I'm new to this tablet, only had it a week and relized people cant hear me when i Skype with them. So before i purchase a head phone set with a mic on it i wanted to ask here to find out what is the best solution ??
I use a stereo headphone (make Wesc - more or less 50 €) with a little microphone which is located on the cable (close to the headphone). The sound is crystal clear.
I didn't find any other solution for using voip (skype, google) with this tablet.
I use it in three ways.
1- like castafiore do.
2- using only a headphone, no mic. (use the internal mic)
3- using speakers conect to heatphone plug. (use the internal mic)
I think that the "plug" disconect something internal in reference with the "cancel noise system."
Please excuse my bad english.
tabasco22 said:
I use it in three ways.
1- like castafiore do.
2- using only a headphone, no mic. (use the internal mic)
3- using speakers conect to heatphone plug. (use the internal mic)
I think that the "plug" disconect something internal in reference with the "cancel noise system."
Please excuse my bad english.
Click to expand...
Click to collapse
So are you saying that all I need is head phones no mic?
Yes.
If you want better results, you can install: "volume control"
market.android.com/details?id=com.revsodev.volumecontrol&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5yZXZzb2Rldi52b2x1bWVjb250cm9sIl0.
and high the "in-call volume".
Try skype test.
I talk with my son every night and he hear me wery well.
Unlike tabasco22 even though the noise is reduced when there is something plugged into the headphone jack, the internal mic is not usable for skype.
it seems that there are many headphone/mic sets that work, though i have tried 2 iphone sets that do not .
bullyspud said:
Unlike tabasco22 even though the noise is reduced when there is something plugged into the headphone jack, the internal mic is not usable for skype.
it seems that there are many headphone/mic sets that work, though i have tried 2 iphone sets that do not .[
So should i not buy headphones with a mic that are for apple ipod or iphone?
Click to expand...
Click to collapse
I use SONY headphones ,speakers.
using a $1.50 headset with mic i got from ebay. works great. actually it works way better then it should for that price.
yo all have been thanked
I was gonna just drill a bigger hole in mine lol I guess I could be more logical ill try volume control + see if it helps any
Sent from my HTC Inspire 4G using Tapatalk
Making a hole?
There is another solution: take off the back cover of the tablet. If you do a test with the two microphones totally uncovered (as I've done myself), you will notice that there is NO improvement at all.
Evidently, the problem doesn't come from there...
castafiore said:
Making a hole?
There is another solution: take off the back cover of the tablet. If you do a test with the two microphones totally uncovered (as I've done myself), you will notice that there is NO improvement at all.
Evidently, the problem doesn't come from there...
Click to expand...
Click to collapse
Yea figured thanks for the info:thumbup:
Sent from my HTC Inspire 4G using Tapatalk
Anybody tried remove second mic? I mean sound canceling mic. Or maybe just cover it with tape.
I think it's a software problem, between the level of the microphone and cancel noise system level
This problem disappears when you insert any kind of plug into the speaker output., which cancels the "noise canceling system".
deepdelete, you phisicaly disconect the "sound cancelling mic" when you insert a plug.
I think sensitivity of sound canceling mic must be lower, or it must be placed somewhere else.
Sure there is also possibility to correct things with software mod.
http://en.wikipedia.org/wiki/Noise-canceling_microphone
deepdelete said:
Anybody tried remove second mic? I mean sound canceling mic. Or maybe just cover it with tape.
Click to expand...
Click to collapse
Yes, I did try that as well. But it doesn't make any difference neither.
I think you could be right, deepdelete. The second microphone on the a500 faces the back of the tablet (opposit the user).
But the 2 microphones are so closed to each other that the desired effect (as explained on the link you give), the "noise-cancelling", doesn't work properly. It's just a guess but it sounds logical (to me, anyway ).
Surprised nobody mentioned, removing the tab from the cover if you use one.
Found this out the hard way. Tab's cover, actually covered the mic! And, if I held it in my hands, it actually picked up the residual sound my fingers made when holding it. Resulted in a "garbled" sound on the other end.
I found with skype, the best thing, was to remove it from the cover, and place it on the covers "stand".
Where is the microphone located? I can't even use the voice search function with mine.
STUPID MIC locations... AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN
There are two mics..
ONE is dead center in the grove between the glass and case at the top of screen. you will see a tiny slot..
the second one.. on the right of the sd card door you will see a tiny hole.. Its right under there.. This one is for background noise canceling. Like from the a500s own speaker.. and does not work well.. The mic works ok with yahoo messenger.. if YOU HAVE NO BACKGROUND NOISE AROUND or you cover that back mic..on not well BUT BETTER THEN IT DOES WITH GTALK OR skype ..
it just sucks is all there is to it.. I tried replacing the mic with a high end known to work well mic . NO LUCK So its either a hardware chip.. or software issue.. Do not think this will ever be fixed .. USE HEADPHONES
I had to replace my s4 and the one I got has issues with the speaker phone microphone, the one on top. I can't find anything about how to replace it, if possible. Does anyone have a source for that or experience doing it?
hAvAAck said:
I had to replace my s4 and the one I got has issues with the speaker phone microphone, the one on top. I can't find anything about how to replace it, if possible. Does anyone have a source for that or experience doing it?
Click to expand...
Click to collapse
Looks pretty easy & you can get the assembly fairly cheap...and looks like it's attached to/with the charging port http://www.amazon.com/ePartSolution-Samsung-SPH-L720-Charging-Microphone-Replacement/dp/B00EZ69E34
Here's a vid for the charging port replacement (since mics are part of that assembly)
youtube https://www.youtube.com/watch?v=54aYNLlmad0
some general teardown pics:
http://www.ifixit.com/Teardown/Samsung+Galaxy+S4+Teardown/13947
BTW....that should also just be covered if you have ins.
sainthooligan said:
Looks pretty easy & you can get the assembly fairly cheap...and looks like it's attached to/with the charging port http://www.amazon.com/ePartSolution-Samsung-SPH-L720-Charging-Microphone-Replacement/dp/B00EZ69E34
Here's a vid for the charging port replacement (since mics are part of that assembly)
youtube https://www.youtube.com/watch?v=54aYNLlmad0
some general teardown pics:
http://www.ifixit.com/Teardown/Samsung+Galaxy+S4+Teardown/13947
BTW....that should also just be covered if you have ins.
Click to expand...
Click to collapse
Is this for the mic at the bottom of the phone near the microUSB port? I'm having issues with the mic at the top near the audio jack.
hAvAAck said:
Is this for the mic at the bottom of the phone near the microUSB port? I'm having issues with the mic at the top near the audio jack.
Click to expand...
Click to collapse
Yep, I did notice you initially mentioned the mic at the to of the phone, which is why I posted what I did.
I personally don't have a need to open my phone up to see for myself at this time, but if I did I'd chronicle the process for you and share some pics.... but again, in the links I shared, pics and vid are relatively easy to follow and access those particular parts for you to see what you actually need.
That said, the assembly for the link I shared looks like it includes the ribbon for the top mic as well as the bottom mic.
Also, from the links that I shared, the teardown only shows the mic location at the bottom, which would be on the assembly. The other mic isn't necessarily shown. So, I think you'll need to do some homework and see how the tear down is. It looks relatively easy to get to, so you can see where the mic is/how it sets for the top...or if it is like the mic at the bottom.
These are what would appear to be the bottom mic http://www.ebay.com/itm/2-x-Replacement-Internal-MIC-Microphone-for-Samsung-Galaxy-S2-S3-S4-I9300-/261421772171?pt=US_Cell_Phone_Replacement_Parts_Tools&hash=item3cddf3ad8b
So, it isn't necessarily clear if the top mic is the same or not - that's where the links are for, so you can take a look at what you'll need. Crack that puppy open and take a look.
The other thing I was thinking is that it is so close to the headphone jack, it might be a part of that assembly, which is also viewable in the teardown pics. http://www.ebay.com/itm/OEM-SAMSUNG-GALAXY-S4-SPRINT-SPH-L720-REPLACEMENT-AUDIO-JACK-HEADPHONE-PLUG-/141236749614?pt=US_Cell_Phone_Replacement_Parts_Tools&hash=item20e25dc52e
It's hard to tell what it is exactly without seeing it upfront, so I'm just trying to help point you in the right direction...but I suspect you'll have a better idea if you can take a look on the inside. And judging from the previous links I shared, it doesn't appear that difficult to access where the top mic would rest to see what you need.
EDIT: one other thing, have you simply tried pushing the tip of a push pin or needle to possible clear any debris out of the hole for the mic? is the mic just not working at all? How do you know it's the top mic?
Excellent, thanks. I'm told it's intermittent when I'm speaking on speakerphone (top mic), but not on the regular headset (bottom mic) or bluetooth.
hAvAAck said:
Excellent, thanks. I'm told it's intermittent when I'm speaking on speakerphone (top mic), but not on the regular headset (bottom mic) or bluetooth.
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Just curious, but have you tried turning off the noise cancelling/reduction option? it might be trying to adjust with background noise and is actually working against you...
you can get that from the dialer > Menu > call settings > and deselect "Noise Reduction" ...or during a call hit the little sound wave icon that has a line diagonal through it... it is directly above the "Add call" button - so that it's "grey" rather than green.
Sounds more to me like the noise reduction. Just a thought.
sainthooligan said:
Just curious, but have you tried turning off the noise cancelling/reduction option? it might be trying to adjust with background noise and is actually working against you...
you can get that from the dialer > Menu > call settings > and deselect "Noise Reduction" ...or during a call hit the little sound wave icon that has a line diagonal through it... it is directly above the "Add call" button - so that it's "grey" rather than green.
Sounds more to me like the noise reduction. Just a thought.
Click to expand...
Click to collapse
That might be it. I'm on AOSP, but I turned off the noise suppression.
hAvAAck said:
That might be it. I'm on AOSP, but I turned off the noise suppression.
Click to expand...
Click to collapse
Well, you might be able to narrow it down at least to software or hardware for sure by trying a different ROM and see if it persists...