Database Users

[BUG?] Microphone record volume level too hight causes noise in calls

Hey there i don't mind if anybody had this recognized too... but the Microphone level is quite too high!
to me as non dev it seems that the microphone on normal (not loudspeaker calls) is sensitiv as in loudspeakercalls it should be...
because that we have the heavy noises when calling! (not a big problem when using the loudspeaker mode because than you didn't talk directly to the mic and the voice didn'ts gets overpitched on the other side!
just try to call your self from a nother phone and then enable the loudspeaker mode... you didn't hear changes in mic. level ...
you want to report
maybe its a small and easy thing to change this?!

futureshock said:
you want to report
maybe its a small and easy thing to change this?!
Click to expand...
Click to collapse
write kernel driver to control appropriate HW!!
HD2 as sensor for reduction noise,
it need implemented on Linux Kernel

i think the mic is just to sensitiv in normal calling mode (non loudspeaker mode)
... no need for the noise reduction sensor (are you sure that there a second mic to reduce noise..)
But i found a solution, just use the Headphones ... no Noise on the other side

futureshock said:
...
But i found a solution, just use the Headphones ... no Noise on the other side
Click to expand...
Click to collapse
But this is a trick and not a solution for everyday use. I think the Mic Level is to high, too. I think that is the problem that every one have with "echos" maybe?! Anybody can fix this to try it out?

[Q] Interference noise during calls

Hello,
the speaker of my Milestone2 (where you put your ear while talking on the phone) produces interference noise during a phone call. You may know this annoying sound from making a phone call or send/receive a SMS next to powered unshielded speakers.
I ordered another Milestone2 to check if this noise problem was a hardware defect. Now I have two MS2 with the same annoying noise.
Did motorola forget to shield their speakers. Who builds a mobile phone that cannot handle the RF it uses?!?
Anyone else got a noisy Milestone2?
At least this guy has: https://supportforums.motorola.com/message/292340#292340
Bye
MaeSiuS

Interesting microphone discovery!

I got some moisture in my A500 while putting a screen cover on it and the unit was misbehaving. I have that cleared up now (hopefully), but noticed something about the microphone. It was partially covered by a tag from one of the wiring looms! I don't know if moving this tag out of the way will improve the microphone, but it sure as heck aint going to hurt it! Since the microphone points away from you as you hold the tablet, I'm not sure it's ever going to pick up your voice properly.
Pics are attached
Rob
update: I put my a500 back together, but forgot I had the sd card still in there. The end result was that I cracked the sd card which renders it useless. I'll have to buy another one now. The microphone recording volume is still quite low, no improvement there. I think it's a design oversight and any tablet should probably have front and rear facing microphones. Only use the one facing away for video recording, othewise use the one facing the user.

Did you try turning the mic over? Maybe they made two mistakes. Putting the mic in wrong and then covering it with the tag

The A500 has a 2 microphones array, for noise canceling effect.
The microphone you put the tag label away from is the noise canceling one, the main microphone is just at the left of that one and its facing front. As you put away that tag you may have an improvement on the noise canceling effect, if you try to turn over the mic it will not harm the device but I'm pretty sure it will not help noise canceling.
Holding the A500 landscape and dock port down, the gap of the front facing mic is between the screen glass and the upper frame, is just right in the middle, it is hard to see but can be seen from certain angles and light conditions.
Also you provided the proof that I'm not writing nonsenses, in the first picture attached, there are those two alike connectors, both have plugged microphones, and they have the same tag flap with the same codes and digits imprinted. If you look closely you can see the edge of the front facing mic, it's at the left of the back facing mic and it's almost covered by the circuit board where both microphones connectors are.

I as well had taken my tablet apart due tons issue with video cable loose.and noticed exactly where the mice are at. Thinking about going tobeadeo shak or order from black box better mic to out in.I have done this on laptop before

silverball.slayer said:
update: I put my a500 back together, but forgot I had the sd card still in there. The end result was that I cracked the sd card which renders it useless. I'll have to buy another one now. The microphone recording volume is still quite low, no improvement there. I think it's a design oversight and any tablet should probably have front and rear facing microphones. Only use the one facing away for video recording, othewise use the one facing the user.
Click to expand...
Click to collapse
I did a few recordings to test the noise canceling array, and be able to notice the noise canceling effect when recording video with front facing camera, when recording with back facing camera, I notice no noise canceling, the recording level is a little low, but was ok, I'm not sure if this feature is binded to which camera the user is using during record, also I have no professional equipment or applications to make sure that the noise canceling effect/feature was working or not.
I agree that this kind of double microphone array should be a lot more user friendly, letting a user decide to use both microphones, or using only one and which one, or turn on or off noise canceling, or any other feature as the recording level, will not harm anyone. And having the device defaults to record using front facing camera with front mic and noise canceling, and when using back facing camera with back mic, without noise canceling, will work as most users wanted it to work.

The microphone on my third A500 is working great so far. I returned the second one today because the microphone audio was very low. It's still running 3.01 stock because the 3.01 OTA update isn't available yet for my unit.
Rob

Raising Mic Volume

I was wondering if anyone knows how to raise the mic volume on a call. I use a car arm to use my phone to listen to music and answer calls while I'm driving. I've noticed that the mic volume is very low while the headphone jack is use (can't hardy hear me). Of I turn on the speaker feature on the call, the mic volume fixes itself. I was wondering is there was a way to raise the mic volume with the headphone jack in use .
Thanks in advance.

Bump!
Sent from my Nexus 4 using xda app-developers app

If you search for mic call on N4 threads you will see lots of complains and no answer. Seems like noise cancelation is the problem but still no luck

Stick your finger over the top microphone while you're talking. That will make the N4 send all the signal from the bottom microphone, effectively eliminating noise suppression but letting your voice come through okay.

wmm said:
Stick your finger over the top microphone while you're talking. That will make the N4 send all the signal from the bottom microphone, effectively eliminating noise suppression but letting your voice come through okay.
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did it with no success, in fact that should be the solution for some reason it doesnt work for me

Dunno, then; I was just reporting the experience of a user in a different thread. I haven't had a phone call in the car since then, so I don't know whether it would work for me or not.
Just a thought -- my car mount has movable feet, and I have to make sure that one of them doesn't cover the microphone hole on the bottom. I don't know if your mount potentially has the same problem or not.

Noise Reduction

Hello Friends!
I've a Problem with my phone.
When i call someone, other side hears too much noise or they hear their own voice.
When i use headphones or speaker then there is no sound.
I am on latest OTA but the problem remains the same.
There is some problem with the Noise Reduction but i could not find anywhere how to solve this problem.
Please help!

Well I don't have this issue but i'm sure the phone has something wrong in sound/mics!
Try to film a video and see how bad the sound recording is! It's like the back mic is closed or muffled!

I have the same issue plus on a headset the sound is unbearably loud even on 0 level