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No sound during call, however speakerphone & headset wor

I have the same problem:
No sound during call, however speakerphone works and headset works well. There is no sound only when I use it as regular phone. Person on the other line can hear me well all the time.
When I raise volume during call I can hear peices of the person on the other line, at the same time as phone beeps that it reached sound maximum.
This happened after phone was dropped and it hard reset itself automatically.
I am trying to reboot it now with different ROM.
Headset jack hasnothing to do with it, since speakerphone works well.
If anybody has any idea please share.
Thanks

This is a hardware issue, (the audio for the internal speaker and microphone is routed via the headphone socket) The socket has a very small switch that is opperated by physically inserting the jack plug. Sometime mine plays up and I fix it by pushing a straigtened out paperclip into the socket.

Delete wrong forum

Big Thanks DOC C
This is the first time i post a reply even though i've been a member of xda-developers for a long time and like the work done here. I must say that I was about to throw my phone if it wasn't for DOC D. The problem is indeed with the headphone jack. Sound in my earphones is messed up and phone calls have no voice. You just saved me a few hundred bucks!! BIG HUG!

baddentist said:
I have the same problem:
No sound during call, however speakerphone works and headset works well. There is no sound only when I use it as regular phone. Person on the other line can hear me well all the time.
When I raise volume during call I can hear peices of the person on the other line, at the same time as phone beeps that it reached sound maximum.
This happened after phone was dropped and it hard reset itself automatically.
I am trying to reboot it now with different ROM.
Headset jack hasnothing to do with it, since speakerphone works well.
If anybody has any idea please share.
Thanks
Click to expand...
Click to collapse
I have same probem which persist to me over 5month and can't understand how to solve it... is it really hardware issue? how to repair it?

Gourm3t said:
I have same problem which persist to me over 5month and can't understand how to solve it... is it really hardware issue? how to repair it?
Click to expand...
Click to collapse
Did you use to carry your pone in your pocked? Sometimes there is a small peace of dust opening that small switch inside the headphone jack. Maybe you try to get rid of it with compressed air. In some cases the connection between that connector and the main-board is broken. Dismantling is a good idea, but you have to know, what you're doing. The fact that the headphone is working well, is a good sign, that the problem is inside that jack.
In some cases the springs that contact the speaker to the MB are worn or dusty, try to get a better connection.

sound problem in my smartphone hct tytn 2
Helo dear friends
I got sound problem in my htc after I installed my new android in it
every time I start my phone first call only I can make and hear the voice very well,..but when I end the call next calls done but I can not hear any sounds
can any one here help me please???

Athena call quality issue?

I have been experiencing call quality issues with my X7501. The problem seems to occur when the other person is in a noisy environment like in a noisy car or club. The result sounds like a broken or intermittent connection, where each of us can only hear bits and pieces of our conversation.
This does not seem to occur under any other circumstances so I am wondering if it is related to the Athena's in-built speakerphone. Maybe the microphone and speaker are interacting to cause this?
I am going to experiment with the microphone AGC, try covering the microphone, adjust the volume level, etc. next time this happens to try and track down the cause.
If anyone has experienced similar issues please post here.
Thanks!

Is anyone else having this problem? 65 views and no replies makes me wonder if I have a defective unit. I have determined the following:
1. The microphone AGC has no noticeable effect
2. The voice call is broken and intermittent if either party is in a noisy environment, not just the party being called
3. Covering the microphone with a fingertip restores the conversation to normal
It's almost like the phone is not full duplex...

Update...
I have found out that covering the microphone (like with a fingertip) solves this issue. This works at either end of the conversation, wherever the noise is. Of cource this does not help if calling a conventional handset (ulesss the other party uses the "mute" button...
I am still wondering if onyone else is having this problem? Please let me know.

toyfreak said:
I have found out that covering the microphone (like with a fingertip) solves this issue. This works at either end of the conversation, wherever the noise is. Of cource this does not help if calling a conventional handset (ulesss the other party uses the "mute" button...
I am still wondering if onyone else is having this problem? Please let me know.
Click to expand...
Click to collapse
I have te same effect if not using headset. That is way I mostly use my Jabra stereo headset. Works well in any conditions.
The reason is that the mic is close to left speaker. Solution would be to switch it off, but I haven't heard of anybody done it.
I also use voip, but not the WM6 inbuilt one. I use Aget phone. Normaly it uses only speakerhone, but with stereo headset, incoming audio goes through headset, and my voice is picked up by mic builtin the Athena. It works well.

i do get the same problem if the person i am speaking to is in a noisy environment.
I have just got into the habit of holding the phone with my finger over the left speaker since i noticed it and it seems to be fine now.
A niggly little thing really, but not a deal beaker in my opinion. Such is the life of the gadget freak.......!

[Q] Phone call quality on headset

Does anyone actually use the phone as a phone? I'm finding that the echo cancel really limits the quality of the phone. I can hardly carry on a decent conversation in the car using the supplied headset.
Does anyone else have this problem?
Try this: connect the headset. Call your phone from another phone. Listen to both at the same time. You can clearly hear when you talk that the phone is suppressing noise.
What I find is that when I'm in the car, it actually seems to suppress the volume of the person on the other end! So, it can be very frustrating as I miss words that they say.
Combine this with AT&T's marvelous AGC (where if you don't talk, it cranks the volume so that when you do talk, it blows the person on the other end away!), and the total quality of the call is horrible.
I've been using cell phones for almost 20 years. This is the worst phone quality I've ever experience.

When I use the phone directly for calls, everything sounds clear and at a consistent volume with one exception, while waiting for the other party to answer, the call ringing tone goes up and down in volume.
I've paired 3 different bluetooth headsets to the phone and found that the volume in my headset goes up and down quite a bit. Usually it's the worst at the beginning of the call. Sometimes I can't hear the other person answer but then it levels out a bit and the volume fluctuations are less extreme. I've tried an old Sony Ericsson, a Jabra Extreme, and have settled on a Plantronics Voyager Pro+. The Voyager is about the best I've tried but still exhibits the volume fluctuations but not as bad. It also supports A2DP so I can listen to podcasts through the headset.

I use it with the Sync system in my ford f150 and have no problems at all. It works great. I dont use headsets so..........only my sync system

I thought it was just me. My Plantronics 925 does this as well. Calls from the phone are fine, but the headset volume cuts in and out. Is this a bad Bluetooth stack or other problem? I think I remember another phone (WM 6.5) that had to get hacked to fix this. I'm a little miffed on this. Did anyone at Samsung or ATT test the bluetooth on this phone before selling it?

I have had very good call quality whether using the "phone as a phone", the phones speaker phone, or a blue ant bluetooth headset. I have had poor call quality only when trying to call someone in very low signal area. That has only been once. Otherwise overall clarity and volume have not been an issue, actually phone volume on high is too loud for my ears!

adding to my earlier post. I exchanged my Focus due to an unrelated issue. Both handsets had the same fade out issue with the bluetooth headsets. I've experienced it on every call so I don't think it's signal related. I don't see any volume fluctuation at all when using the handset without the bluetooth headset. I've tried the same three bluetooth headsets on my wife's iPhone 3GS and all work fine. I've also streamed at least a couple of hours of podcasts from the Focus to my headset and the volume is perfectly level. Whatever the issue, it's only related to phone calls. Very frustrating.

I've experienced the same issues. I have an Aliph Jawbone Icon. Before I updated the firmware on it I could barely hear someone on the other end. With the new jawbone firmware I have the ability to control the volume in the headset and only when I have it turned all the way up does it work ok. I do, however, still have trouble when people are talking that when the first start and or finish talking what they say seems to get clipped. Further, the volume seems to fade in and out. Also, if I'm using the AT&T navigator software and have my headset attached it will give me directions through the headset, but the end of every direction gets chopped off. So, the avene or street part of a direction doesn't come through.

I've been following this issue in a few different forums. Today a moderator in the Microsoft Answers forum jumped in and said they were experiencing the same problem and they would escalate the issue.
http://social.answers.microsoft.com...4ce-30ee-4734-9dab-28ce0d561132?prof=required

Can't recommend this phone
I was so excited when I first got my Focus. I thought it was such a huge step forward for MS mobile and actually had some chance at being mainstream. Sure it lacked a few features but there was the hope that MS would update the phone quickly. After all, they seemed to have made such phenomenal progress in getting the phone to market, seemed like fixing a few things and adding a few features would be a no-brainer.
Well, here we are 3 months later (Apple released the first update for iPhone 1.0.1 only one month later) and lots of rumors but nothing substantial on the long-awaited update. We'll see cut/paste but it's not at all clear if they will address anything else.
Here in CA we have a law that says we can't talk on the phone unless it's hands free. For the first time since that law was imposed, I've been regularly breaking it. I can't use a handsfree headset. Even the wired one that comes with the phone is so damn inconvenient that by the time I get it going, the caller is long gone. So, seemingly MAJOR features like BT headsets appear to get no notice at all from MS. I've looked through all the threads and there's nothing from MS. They don't even acknowledge the problem.
Looking at the thread from mcraine, I don't see where MS is going to do anything about this. Also, don't see any indication that it's part of any forthcoming updates.
Too bad. I thought this MS had a chance with this phone but they are blowing it big time. Momentum is gone now. If we have to wait another 3 months to get the browser fixed then the phone is destined to be like the Palm Pre. Good phone but can't keep up with the 'big' boys. This horse jumped out of the gate and was looking really good for the first couple of strides but then completely fell down and they are trying to coax it to get up again.

same issue here as well. mine is only a month old. it is not as noticable when sync'd to the car, but still noticable. and as said before more at the beginning of the call. if there were not issues, it would not be M$

Microphone low sensitivity when not on speaker

I have noticed an issue that did not exist with the Galaxy Nexus.
When not on speakerphone the microphone sensitivity is down-regulated significantly from the way it is when it is on speakerphone.
Frequently people connect the phone via auxiliary cable in the car (as a hands-free approach), but in order for it to route the audio to the speakers for the car, it cannot be on speakerphone. However when not on speakerphone the sensitivity of the microphone is limited, it is not the same as on speakerphone, therefore unless you have the phone right beside your mouth, the other party will be unable to hear you (due to low volume).
I assume this is an software change in 4.2, I have tested the issue on two Nexus 4's. When turning back on speakerphone, the microphone increases sensitivity again, and the other party is able to hear clearly again.
This poses a problem if you want to have the phone in your car connected to auxiliary and not right beside your mouth/face. I assume they added this because they assume that if the phone was not on speakerphone then it would be right beside your mouth/face during a call, however this is not at all always the case, especially if you connect your phone via aux in the car.
Anybody else experienced this? Any work-around?

Yes, thats really a shame.
I think, it is the noise cancellation. Nexus One has Niose Cancellation, too.
There I've found out, that I have to make a change in the build.prop to disable this
but I really don't know, where to find the line in build.prop to disable the noise cancellation.
And: You have to root your phone to do this.
It's really a shame, I can't use my Nexus 4 in my car plugged into the auxiliary input

hmm anyone can disable it via build.prop?
reminds me a of the days in Nexus one..

I've opened an issue on Google.
Hoping for many votes, that they can see it.

UKROB86 said:
I have noticed an issue that did not exist with the Galaxy Nexus.
When not on speakerphone the microphone sensitivity is down-regulated significantly from the way it is when it is on speakerphone.
Frequently people connect the phone via auxiliary cable in the car (as a hands-free approach), but in order for it to route the audio to the speakers for the car, it cannot be on speakerphone. However when not on speakerphone the sensitivity of the microphone is limited, it is not the same as on speakerphone, therefore unless you have the phone right beside your mouth, the other party will be unable to hear you (due to low volume).
I assume this is an software change in 4.2, I have tested the issue on two Nexus 4's. When turning back on speakerphone, the microphone increases sensitivity again, and the other party is able to hear clearly again.
This poses a problem if you want to have the phone in your car connected to auxiliary and not right beside your mouth/face. I assume they added this because they assume that if the phone was not on speakerphone then it would be right beside your mouth/face during a call, however this is not at all always the case, especially if you connect your phone via aux in the car.
Anybody else experienced this? Any work-around?
Click to expand...
Click to collapse
Thank you so much for bringing this up. This is my main beef with the phone coming from my Gnex. Hopefully a fix can be found soon.:good:

My suspicion is that this has to do with noise cancellation. The way noise cancellation works is that there are two different microphones at opposite ends of the phone; the one farther away from your mouth picks up ambient sounds and, more faintly, your voice. The one nearer your mouth picks up ambient sounds and, more loudly, your voice. What gets sent over the phone connection is, effectively, the difference between the signals from the two microphones, leaving mostly your voice.
If the two microphones are roughly equal distances from your mouth, they both pick up your voice about equally strongly, meaning that your voice is mostly filtered out with the rest of the ambient noise. Speakerphone mode disables the noise cancellation, so your voice comes through strongly.

.... as I've said in the second post. Other phones don't have trouble with it.
Send from my iPhone 6s

FormelLMS said:
.... as I've said in the second post. Other phones don't have trouble with it.
Send from my iPhone 6s
Click to expand...
Click to collapse
Exactly. This is not simply a noise cancellation problem IMO. Other phones have noise cancellation too but don't have this problem.

FormelLMS said:
.... as I've said in the second post. Other phones don't have trouble with it.
Click to expand...
Click to collapse
Sorry for inadvertently repeating what you said in that post; it's been nearly two weeks since then, and I had forgotten it had been previously mentioned.
Perhaps the other phones with noise cancellation that don't exhibit this behavior simply turn it off if a headphone is plugged in. That would make sense for a speaker-only headphone, but not necessarily for a headphone with an inline microphone, where the voice microphone would still be nearer to you than the auxiliary microphone. If that's the case, it would be nice if that setting were exposed as a controllable option.

Please look here and add as many stars, as you all can:
http://code.google.com/p/android/is... 4&colspec=ID Type Status Owner Summary Stars
I'm the only one who has told it to google and with one star I think no one will see this problem there.
So we have to gewt as many stars and comments as possible.

Any developers can help with the build.prop line to disable this?
I remember pm founder of cyanogen mod and he pointed me the line to disable in nexus one..

I heard if you get an external mic it is much better but I haven't tried myself. This is annoying because I usually just use the aux with my nexus s with no problems >.< Anyone out there got any other solutions?

Yea seriously bump on this topic. This is a massive problem..

Have you all voted on Google page for this problem?

FormelLMS said:
Have you all voted on Google page for this problem?
Click to expand...
Click to collapse
I voted for 1, lets make another

Yes big problem.. I am driving using speaker phone and I can't hear ****..

mgear356 said:
Yes big problem.. I am driving using speaker phone and I can't hear ****..
Click to expand...
Click to collapse
It's the other party not being able to hear when on aux.
Misread.. But Yea if using speakerphone to avoid this problem ull barely be able to hear them, simply not loud enough

Low microphone volume?

Does anyone else have the person they are talking to mention how low you sound to them when speaking on the phone?
It seems like I have a low microphone on my nexus 4, unless the phone is directly in front of my mouth the person can't hear me clearly, I'm thinking it might be hardware but I know with some phones this can be corrected with a custom driver that makes the microphone more receptive
Is there an app or setting that I can use that would disable noise cancellation in case that's what causing my mic to make me sound low?

mastrgamr said:
Does anyone else have the person they are talking to mention how low you sound to them when speaking on the phone?
It seems like I have a low microphone on my nexus 4, unless the phone is directly in front of my mouth the person can't hear me clearly, I'm thinking it might be hardware but I know with some phones this can be corrected with a custom driver that makes the microphone more receptive
Is there an app or setting that I can use that would disable noise cancellation in case that's what causing my mic to make me sound low?
Click to expand...
Click to collapse
Actually I have the exact same problem - not sure what we can do to fix it.
If I crank up the volume fully it appears to -sometimes- solve the low audio problem.

_stefans_ said:
Actually I have the exact same problem - not sure what we can do to fix it.
If I crank up the volume fully it appears to -sometimes- solve the low audio problem.
Click to expand...
Click to collapse
if it -sometimes- solves the problem then it might be a software bug. i hope some dev can be notified of this. have you tried a different ROM? if yes, have you notified the dev of the ROM?

Jamal Ahmed said:
if it -sometimes- solves the problem then it might be a software bug. i hope some dev can be notified of this. have you tried a different ROM? if yes, have you notified the dev of the ROM?
Click to expand...
Click to collapse
Its actually on stock, so I just rooted it, and will try with a different rom shortly.

Same thing here.. Sometimes they hear me, sometimes they don't even during the same call..

I'm starting to think the noise cancellation is playing some tricks.
While driving home this afternoon I was on headset on the freeway, where those I talked to could barely hear me.
Unplugged my headset (klipsch s4 image ii), and sound was good. After a while I plugged headset in again, still bad.
When coming off the freeway I kept the headset on while talking - and all of the sudden it was crystal clear (using the words of the guy I talked to at the time). At the same time I noticed that I had no data (outside even edge coverage), don't know if that is related or not.
Is there some way we could experiment / disable or tweak the noise cancelling?
Ps: I have had the same issues without headset also, so definitely something general software things going on
Sent from my Nexus 4 using xda premium

_stefans_ said:
Its actually on stock, so I just rooted it, and will try with a different rom shortly.
Click to expand...
Click to collapse
I had the same setup. I am using the Xylon (stable) 15 ROM for several days now, and SO FAR I think the microphone reception is better. I haven't heard complaint from the person I speak to on the regular. *cross fingers* hope it's 'fixed' in some way.
equi said:
Same thing here.. Sometimes they hear me, sometimes they don't even during the same call..
Click to expand...
Click to collapse
That's exactly how my phone was as well. I would be on one call for a while and all of a sudden out of nowhere the person I'm speaking to says I sound like I'm speaking across a room and I'm like 'wtf happened? I haven't changed positions since I started talking to you!'
I did a little testing with the person I was speaking to as well, to test the microphone receptiveness and the mic seems to pickup my voice better, I wasn't speaking directly into the mic and they said they heard me fine.
_stefans_ said:
I'm starting to think the noise cancellation is playing some tricks.
While driving home this afternoon I was on headset on the freeway, where those I talked to could barely hear me.
Unplugged my headset (klipsch s4 image ii), and sound was good. After a while I plugged headset in again, still bad.
When coming off the freeway I kept the headset on while talking - and all of the sudden it was crystal clear (using the words of the guy I talked to at the time). At the same time I noticed that I had no data (outside even edge coverage), don't know if that is related or not.
Is there some way we could experiment / disable or tweak the noise cancelling?
Ps: I have had the same issues without headset also, so definitely something general software things going on
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I have a sneaking suspicion It might have to do with the noise cancelation as well, I think on paper whoever designed that feature on the phone thought it would be cool but it doesn't seem to be panning out too well. I've read somewhere on this forum about how to increase microphone volume and cancel the noise cancellation using the Terminal Emulator app and/or the phone's dial codes (#*#*some sumbers*#*#).
I have the same earphones (no mic attached) and I have similar experience but I haven't taken note of it like you have since 95% of the time I have my headphones in the phone.
I also want to mention a little trick that I think seems to work when on calls. Whenever I turn the phone over, screen facing opposite of me, I hear less complaints of me sounding too low to the other person. Maybe it's doning something... i dont know.

Same issue - with headset only though
I have the same issue, people really struggle to hear me on conference calls (which I spend a lot of time on), so I have to hold the mic in front of my mouth to speak which gives awful sound quality. I don't have this issue when not using a headset (phone mic works fine).
Nexus 4 + Klipsch s4a = really quiet mic, people can't hear me at all.
Nexus 4 = No problem, phone mic works.
Note - music playback is fine, no issues there.
My klipsch headphones worked fine on my GNex, no issues, so I don't think it is a problem with them. It has been an issue from the moment I switched to a Nexus 4. Have also tried other headset (samsung one that came with Gnex) - and have the same issue of sounding very quiet on the headset mic.
I did wonder if it was an OMTP vs CTIA issue, but the button on my headset works fine to answer/hangup/skip tracks/open voice search etc. so I don't think it is that.
I also tested with another Nexus 4 handset using Soundmeter and got very similar results on both handsets, suggesting it isn't a handset issue (though not a very scientific test).
Does anyone have any ideas?

Just In Phone Calls?
Hi Folks,
Is this mic issue just related to phone calls?
I'm using the latest CM10.1 nightly build and my mic is useless for phone calls.
However, Google's voice search works just fine and if I record a video my voice is recorded just fine.

I could be wrong but I suspect the Nexus4 can not use the phone jack for incoming audio.
In my opinion when one plugs a headset into the audio jack the Nexus4 camera microphone
becomes activated, not the headset one. And the Nexus4 cam mic is really bad.
Again, I might be completely wrong. (I hope)
---------- Post added at 04:02 PM ---------- Previous post was at 03:59 PM ----------
Ord Mandrell said:
Hi Folks,
Is this mic issue just related to phone calls?
I'm using the latest CM10.1 nightly build and my mic is useless for phone calls.
However, Google's voice search works just fine and if I record a video my voice is recorded just fine.
Click to expand...
Click to collapse
OMG you have it reversed. What a mess!
I have yet to see Google Search understand anything I say and video sound is horrible. Call audio is great.

Hi guys - I am on stock android - same issue on 4.2.2 as on 4.2.1.
This isn't just related to phone calls, same issue on google search. I tested headset mic pickup volume when speaking normally with Soundmeter - around 35-40dB (what it calls a quiet whisper at 3ft to quiet residential area, Park).
I also tried moving the headset mic closer and further away from my mouth with the phone in the same position - with the headset mic virtually touching my lips it went to about 60 dB (normal conversation at 3ft) - so it does seem to be related to the headset mic. I can only guess it is either a dodgy connection in the handset or some noise cancelling functionality that is cancelling out my voice!
Any ideas or thoughts greatly appreciated

OMG you have it reversed. What a mess!
I have yet to see Google Search understand anything I say and video sound is horrible. Call audio is great.
Click to expand...
Click to collapse
Darn it!
I knew I was an outlier.
No way I'm getting a fix for my issue then

Anyone figure out a fix? I'm having similar issues with my microphone.
Hooked as bluetooth device in my vehicle, other end hears me fine.
On phone call using speaker phone, other end hears me fine.
On phone call WITHOUT speaker phone, other end cannot hear me at all.
Using a sound recording app to record voice, playback of the recording I can hear my voice faintly if I was YELLING during the recording.
Shazam/Soundhound apps do not work.
I am rooted on rasbeanjelly/trinity kernel. I have to say this issue started a few days ago when I have done no changes to the phone. Already running the rom/kernel for weeks.
I've tried flashing back to stock rom/kernel and the same problems persist.
Any ideas?

akira112 said:
Anyone figure out a fix? I'm having similar issues with my microphone.
Hooked as bluetooth device in my vehicle, other end hears me fine.
On phone call using speaker phone, other end hears me fine.
On phone call WITHOUT speaker phone, other end cannot hear me at all.
Using a sound recording app to record voice, playback of the recording I can hear my voice faintly if I was YELLING during the recording.
Shazam/Soundhound apps do not work.
I am rooted on rasbeanjelly/trinity kernel. I have to say this issue started a few days ago when I have done no changes to the phone. Already running the rom/kernel for weeks.
I've tried flashing back to stock rom/kernel and the same problems persist.
Any ideas?
Click to expand...
Click to collapse
Just an update, I unrooted and reverted back to stock and the problem went away, so it was defnitely a software issue. Will be trying other roms/radios/kernels and see if the problem comes back.
I was on rasbeanjelly 4.2.2/trinity

akira112, did you get any success with your experiments?
Guys, is there any progress / comments regarding this issue?.. Microphone itself works fine when recording the voice with some app, but during the voice calls it is the mess...

My Nexus 4 is two months old and is being returned to Google due to the microphone constantly cutting me out on calls to business clients. I've tried every trick from sound apps to custom roms. No joy. I'm hoping my replacement doesn't have the same problem (although given the sheer number of postings on this issue, I suspect a Nexus 4 design flaw)...

Hello
Is there any solution to low microphone volume problem?
I have been using my N4 for a week and some people complain about my voice's volume. There was no such problem with my previous phone (Defy). There is no difference whether I use phone's mic or bluetooth headset.
My Nexus runs CM10.1 with Franco kernel.

Also keen for a solution
I just returned my first N4 due to the speakerphone cutting out after a minute or two, and getting stuck in non-speakerphone mode.
The replacement seems to not have this issue, which is nice.
But now people are telling me they can hardly hear me. It happens both with normal mode and speakerphone mode.
Ridiculous.
I will be calling Google tomorrow to see what they say, but I am not going to hold my breath for a decent response. Judging by the number of people reporting this issue online, it's not something Google has a solution for.
If anyone figures this out, I'd love to hear about it.

Have sent mine for repair because of this problem. People told they could not here me well.
Skickat från min GT-I9305 via Tapatalk 2

I have the same issue, couldn't fix it but what I noted was that any mic gain adjustments I made only applied to the phone's mic not the headset mic. That means that there is something else that modifies the headset mic, but I do not know.