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Camera app doesn't record audio - no sound!

I'm having an issue with my Nexus One, it doesn't seem to record audio when recording video through the Camera app, all I can hear is a little mechanical noise. The weird thing is, the camera records audio fine when I install another camera app such as UCam Ultra Camera... meaning it must be a software problem right? However, this problem started last week on my N1 with stock ROM (never rooted), and since I started having the problem I thought I would root and flash with CM7.2 but that didn't solve anything.
I hear the phone has 2 mics, one by the charging port and one on the back by the camera. The one on the back by the camera works fine when I use speaker phone or play music, and the one by the charging port works fine because I can make and hear calls. So the microphones seem to be fine to me, but the camera won't record audio!
Anyone have any ideas? Could UCam be using a different mic than the camera app leaving it still a hardware problem? I'm open to DIY, I would like to replace the mic on the back actually because I feel thats the problem, but I can't find one and don't know how to replace it, if anyone has any resources it would be appreciated.
I've searched around, there are many people with this problem, but no answers. Here are three threads that attempted to find solutions, I hope this will be more successful.
http://www.nexusoneforum.net/forum/nexus-one-audio-video/8707-no-sound-when-recording-video.html
http://forum.xda-developers.com/showthread.php?t=1068547
http://forum.cyanogenmod.com/topic/46683-no-audio-when-recording-video/

I have this problem too, but I have a Samsung Galaxy S3. I flashed a few roms, and somewhere along the line, my camera app has no audio and all I hear is some constant white noise in the background. Exactly as you describe. Other apps' audio and mics work fine. I can't find a solution.

Same issue here with the edition of the mic not working when in speaker phone mode.
I was rooted 4.1.2 tried unrooting relocking and flashing stock but no joy. I think this is a hardware issue

noise in voice call with earphone

Hi,
Whenever I talk to someone with earphones on, they complain me about getting lot of noise but I can hear them fine and if I talk without earphones they can hear me fine as well. They describe noise as - when you have phone close to tv or car radio and someone calls radio speakers emits kind of tutututuuututu sound.
Has anyone observed same problem and any solution ? I am on stock ICS ROM. I thought to ask here first before asking SAMSUNG on it.
Thanks

I think it is me only which is having this problem. I am sending complain to SAMSUNG now.
Thanks

just send it... possibly a hardware issue.. i have read threads about such issues and mainly turns out to be an improper installation of mic

[Q] Problem with microphone volume on custom rom

Hello everyone
I have one problem with every custom rom I tried(PA,PAC,CM,SlimKat etc.) and it is the microphone volume.It is very low and not stereo.For camera, only the back microphone works and when I take a video of my TV I can barely hear it.On stock it is normal.Can you help me with this?
Thanks.

Am I the only one with this problem?

BlAckXpeRia said:
Am I the only one with this problem?
Click to expand...
Click to collapse
no you are not the only one
this problem appears on every aosp based rom...and i did not find a good fix for that until now...
Try this fix: http://forum.xda-developers.com/xperia-z1/general/cm11-sound-fix-ultimate-t2861772
if you have installed this fix, you have perfect microphone level etc. and really clear and loud voice recordings.
But this fix causes bad call quality, the person you call to, will hear his own voice like echo.
so this fix, fixes all microphone bugs, but causes also bad sound quality while calling.
i decided to use stock sony because i think calling is important but also whatsapp voice memos for me

I already found that fix.But anyways, thank you!

Microphone doesn't work

Hey folks,
I had the problem with the stock ROM and now I have the similar problem with jackeagels 5.5.1 (SM-G800F).
My microphone works sometimes and sometimes doesn't. People I want to call can't hear me. Eventually after a few calls they do. This is a state I don't want to stay in so does one has any idea what the problem could be? A while ago I pulled some dust out of the mic hole (with a needle) but that doesn't seem to be the problem here

Mines always been dust in the hole. Get compressed air can and blast it. Very annoying.

Hey Guys!
I have a similar problem but only when I use the internal mic, the problem does not occur when I use my headset.
Sometimes, the people I'm calling say that they can hear me very quietly.
Mostly, they say that they hear a constant noise or sound like a "bom bom bom" which is in the background. I can't hear this sound myself and as I said it does not occur when the headset is plugged in.
Any help is appreciated!
Regards, Jens

What phone model? What OS?
The main mic is at the bottom, near USB port. Recording a voice note without earphone, of course, works? The mic hole is dirt or blocked somehow?

lfom said:
What phone model? What OS?
The main mic is at the bottom, near USB port. Recording a voice note without earphone, of course, works? The mic hole is dirt or blocked somehow?
Click to expand...
Click to collapse
Thanks for your reply.
It is a G800F with CyanogenMod 13.
I tested the issue after my initial post with the voice recorder in detail.
So the sound is a kind of buzzing like in the early days of mobile phones when you put your phone near a radio and you get an incoming call.
When I record with the voice recorder, then I hear the buzzing. It is stronger when I say something and quiter when I record silence. Then I also made the same test with my headset, and, unfortunately the buzzing also occured. The intensity was bit lower I think but the sound was there.
Unfortunately, I never tested it with the stock rom. Could this problem be related to a software problem? I'm not sure if I backup my CM and install a stock rom for testing...
Thx!

Yeah, the best way to mak sure it's not software is backup and going back to stock. If it still doesn't work then you have a hardware issue almost certainly...

Recording Video - No sound

I've just been testing the stereo speakers in a quiet environment, by speaking from either side of the phone, however on playback I can initially hear white noise and slight rustling and then the audio just cuts out completely at the point that I spoke in the recording.
I'm a bit perplexed as to what is causing the issue. Has anyone else encountered this problem?

I have encountered the same issue. The phone completely stops recording sounds in video mode

Had the same issue.
Changed codec to h.264 in camera settings in Video Size section and all of problems had gone.
But the phone still cuts sound after ~3 sec while recording in applications like snapchat or messenger.
Edit: After restarting the phone both applications record sound

So this problems still occurs, despite being on the latest update.
Anyone else encountered this? Just wondering whether it's worse doing a full reset

I have the same issue. Do you have other sound apparatus BT associated? It seems to be linked with BT associated sound with my car. It comes back after turning off and on the phone.
Still quite annoying..

Reboot your phone.
Turn off all Bluetooth devices and Bluetooth on phone.
Try another camera app.
Turn off accessibility features.
Clear data for the camera app.
Verify the mic is working on other apps.
Verify permissions for the camera app.
Are you on a stock firmware or did you perform a different kind of upgrade?
What ROM / firmware.

Thanks for all those tips.
Emui 9 as I had the phone. I bought the P20Pro used two weeks ago and upgraded Ota to 203. I did not tried the camera before the upgrade so don't know the issue was already there.

I have found same issue with P30 Pro.
I'm normal camera mode I had the shutter set to mute.
When then going to video mode this setting carries over and sets mute too.
Still testing if other apps and services can override this setting when
---------- Post added at 06:07 PM ---------- Previous post was at 05:58 PM ----------
If you wish to silence shutter on camera but not use the native camera setting to do so, use tasker to mute the phone when camera app is launched.
This mutes the shutter sound but does not stop video audio from recording.

Hi guys, Huawei P30, ELE-L29, EMUI 9.1.0.153 (C431E4R2P2)
All videos recorded using the phone have sound when played back on the phone (with 80% volume setting) but it can be hardly heard after taking such a video file to YouTube or any other smartphone/computer. Mic gain problem?

I have the P20 Pro and although all setting on video are set to mute it still records sound and it's really annoying as I cant turn the dam thing off, someone techy please help, I'm going back to apple when my contract is up don't like this at all, camera is amazing and only reason I moved back to an android tbh, thanks x

Tracey farmer said:
I have the P20 Pro and although all setting on video are set to mute it still records sound and it's really annoying as I cant turn the dam thing off, someone techy please help, I'm going back to apple when my contract is up don't like this at all, camera is amazing and only reason I moved back to an android tbh, thanks x
Click to expand...
Click to collapse
Mute won't mute the video audio, I think it's for UI sounds whilst in the camera app, don't think you can disable audio whilst recording..
Why do you want to? Just curious.

Just to add, I ran into the same issue on my fully update P30 pro.
I was out on vacation and recorded 3 videos back to back. 4K30, HEVC. When I tried the play them back, I found no audio was recorded. The video does have an audio track, but when I pull it out and look at it, it has nothing. Very annoying when you record something that you'll prob never see again in your lifetime (unless you return someday) and find out it didnt work right.
If I test right, everything's working fine. This is the first time this has happened.