Develop Bugs

Audio Issues when plugged into car First shortcoming I have found

So ive got to say this phone has been pretty much awsome for the past 24 hours but I have found its first major short coming wondering if anybody else is having this issue.
SO here is what happens. I happily plugged my note 4 into the aux audio jack in my car and then I plugged it into the car charger. That is when I get this really annoying electrical noise through the stereo system in the car. So I was like hum that is weird my note 2 only did that if the jack was not plugged in all the way. Well when a sound on the phone plays the electrical noise goes away completely and I hear the sound or song or whatever audio is playing crystal clear. Then as soon as no sounds are playing as if the audio card in the phone is not being used its like it shuts off and lets all this electrical noise coming through the charging system of the phone. Then if say a txt comes in the electrical noise sound goes away the alert plays then after the alert plays the electrical noise comes back super annoying. Can hear the alternator in the car through the noise as well. Make me wonder if it is a software issue of some sort because the noise goes away totally whenever any program takes over the audio driver and plays something through the sound card.
Anybody else have this issue? Try it if ya have not would be interesting to hear reports on this. I do not have bluetooth in my car so could not test it. I always raise the phones volume all the way up when plugged into the aux jack so I have more preamping to the stereo.
Thanks

Haven't tried on the note 4 yet but I did have this same issue on the note 2. But it was more of a white noise. Very low almost TV static noise.
Sent from my SM-N910P using Tapatalk

I've had this issue with multiple different phones - I don't think it is the software exactly.
The only time that would ever happen to me is if I was using my aux cable AND had my normal AC charger plugged into it (using an adapter for the car that turned the "smoking thingy" into an AC socket.) If I used an adapter for the car that just gave me a USB port to charge it through only cable it would never happen.
And this happens consistently - haven't tried with my note 4 though yet though.
Try it without your charger plugged in.
Sent from my SM-N910P using XDA Free mobile app

I agree without the charger plugged in there is no noise at all. But it is strange that the grounding loop problem only occurs if software is not playing any audio at all. It literally goes away when something plays audio I can hear it go silent then the audio plays then there is another 8th of a second of pure silence then the noise starts again. Or say you are listening to tune in radio or something and a notification comes up. It will pause the radio program and then you will hear the noise for a split second then a sound will play silent again then split second noise then the radio will resume playing. So between the hand off of the two audio programs playing a sound you hear the noise really weird.
I agree the AC adaptor made noise for me as well on the note 2 plugged into an inverter. But this is just my normal 12 v adapter that never had a problem with the note 2. Will be interesting to hear what more ppl say with their 12 v adapters.

My power adapter above 1 amp makes a lot of noise. Had a 2.x amp for quicker charge. Had to revert to 1.x amp charger to reduce noise.

P6 buzzing sound from earphones

Huawei P6, CM11
So, one day I connected my phone to an amplifier that later turned out to be a bit faulty. Later I started hearing buzzing sound from one channel everytime I listened to something. It even buzzes when some app, lets say Spotify, is playing music and I turn the volume completely down. The buzzing doesn't get any louder when I crank up the volume. Basically I'm able to smother the buzzing sound by cranking the volume, but thats not the solution. I suspect that the phone got some electrical surge from the amp via the headphone jack. To clear things out, the buzzing can be heard from the phones speaker aswell the same way.
I pried the back case open the see any obvious damages but there seemed to be none. I suspect the hardware. Any ideas, hardware fixes? What could have been damaged?

constant noise with behringer dac when screen is on?

I'm using a behringer 222 dac... whenever it's plugged in to the tablet, there is a constant quiet hiss. When I press a button or a key on the nexus keyboard, it gets louder for a bit, then the noise comes out, then it it gets quieter again. Any settings I could change?
This happens with a powered otg cable, and with the dac straight to the tablet unpowered... when I turn the screen off, the hiss goes away...

Anyone hearing a noisy headphone jack?

I often plug my phone in to my stereo system using the headphone jack.
I've noticed that when the phone is not actually playing something I can hear some little crackles and occasionally some buzzes.
I've tried it plugged in to several sources and they all show the same bahaviour, so it's not the stereo, it's the phone.
Anyone else have a noisy headphone jack?

Did you try all of them with the same wire? That could be the cause of the noise.
I've only tried mine with a wired headset and didn't notice any noise.

Yes, different wires
Skorp_X said:
Did you try all of them with the same wire? That could be the cause of the noise.
I've only tried mine with a wired headset and didn't notice any noise.
Click to expand...
Click to collapse
Good question. Yes, I tried two different 1/4 inch to RCA cables and also my 1/4 inch to cassette adapter. Also tried a different phone with the same cables and had silence.

This only happens to me when I plug my AUX cable in my car into my 5X, but it doesn't happen when I put my headphones into it.

I can hear an audible noise every few seconds when I have my headphones on and nothing playing on the phone.. No issues with those headphones plugged into other devices.
Also, my output volume is low. Need to crank my stereo up in my truck when this is connected via aux. Full volume on both the phone and truck is equal to about half when using my nexus 6.. Huge disappointment.

I have this same issue and I've also noticed that the device does not get loud enough when plugged into my cars stereo on my S5 I can the volume all the way up on the phone and keep the stereo at 25 and it would be loud enough for me but now with my 5x I have the phones volume all the way up and the stereo set at 38 "witch is the max volume for the system" and I'm still left sometimes with wanting the music to be louder so hopefully this can be fixed with a software update
Sent from my Nexus 5X using Tapatalk

Norman_Parks said:
I have this same issue and I've also noticed that the device does not get loud enough when plugged into my cars stereo on my S5 I can the volume all the way up on the phone and keep the stereo at 25 and it would be loud enough for me but now with my 5x I have the phones volume all the way up and the stereo set at 38 "witch is the max volume for the system" and I'm still left sometimes with wanting the music to be louder so hopefully this can be fixed with a software update
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Same experience here with the volume in my truck compared to my old phones

I've noticed this happening on my phone as well. It does it with two different aux cables (not when I plug in headphones, though, oddly). My roommate's 5x does it, too. Turning the screen on stops the crackling. I recorded a video of it (I apparently can't post outside links so you'll have to build the url yourself): youtube . com/watch?v=-RObC7bZcQs
The volume seems fine though.
Edit: I received a replacement phone yesterday, and it has this issue as well.

markzip said:
I've noticed that when the phone is not actually playing something I can hear some little crackles and occasionally some buzzes.
Anyone else have a noisy headphone jack?
Click to expand...
Click to collapse
Yes, I can report the exact same behaviour.
If I put a different phone on the exact same setup, there is complete silence when that phone is not playing back audio.

Anyone find a solution to this?

I get a pop in the silent gap between every song on Pandora. I am using a Bose Q15 noise cancelling headphones and nexus 5x with marshmellow. With new batteries in the headphones and low volume 15%..

I've been noticing the same issue. It only happens when no audio is playing back and the screen is locked. When I unlock the device there's no popping until it locks again.

aperturegrillz said:
I've been noticing the same issue. It only happens when no audio is playing back and the screen is locked. When I unlock the device there's no popping until it locks again.
Click to expand...
Click to collapse
Ditto. Getting pretty frustrated with so many accumulating little annoyances on Nexus phones.

Trigger, Auto on, Auto off

Is there any solution with an amplifier, where the amplifier turns automaticly on or off?
If I let the Amplifier always on, there is a static noise which prevents me from sleeping.

madejackson said:
Is there any solution with an amplifier, where the amplifier turns automaticly on or off?
If I let the Amplifier always on, there is a static noise which prevents me from sleeping.
Click to expand...
Click to collapse
I'm pretty sure the only way this would even be possible is with an amp that accepts optical input and can wake when audio is detected and then has an auto off feature.
Sent from my AOSP on Manta using Tapatalk

I have a unit hook to analog in of a small cheap amp, and get no static. Impedance mismatch??? Bad amp? Volume cranked too high?

I've noticed a hum sometimes however now I mostly use optical so that doesn't happen. It's some sort of earthing interference. For example if you have the chromecast powersupply and your amp both plugged into the same power board. If the powersupply your using for the chromecast or the powersupply in the amp is a bit crapy it causes a loop because it's not all isolated properly. That's why it does not happen with an optical connection as there is no metal connection between the two units, and therefore no loop. Try another powersupply for the chromecast, shielded cables, line filters for the power plugs etc, you will find a combination of something that works without the noise. To further limit it, as someone was suggesting, keep the volume output on the chromecast as loud as possible and the volume on the amp as low as possible. Not the other way around.
You can get some very cheap and amazing quality amps from ali-express that have optical inputs too...
Hope this helps.