Develop Bugs

HTC One X Audio Hiss

Seen quite a few topics on this, seems no one has a solution.
What I'm trying to accomplish with this is to see if EVERY HTC One X has this problem of a hissing noise in the background.
The hissing noise sounds somewhat like television white noise, and is apparent when playing music at low volume and during quiet parts of a song.
Testing Method:
i) Using headphones/earphones/whatever that plugs in the headphone port,
ii) Play music or other audio.
iii) Turn volume down to zero (0%)
iv) Listen for the noise.
Repeat method with no headphones i.e. with speaker, and put speaker up to your ear (very close). Try and listen for the noise.

my one x has the issue too.

As far as i know this is not an issue and it's normal, try doing the same thing with any other device and you will hear the same thing, may be hard to notice sometimes but it's there ( I didn't notice this on my HOX until i read your thread )

I do have this hiss on my one x.It can easily be heard when the music is stopped and this hiss continues for a small second!

It drives me mad as I tend to listen to music on lower volumes compared to others...
Sent from my HTC One X

if it is for 2-3 seconds and then it stops, it's normal, not an issue, due to a low voltage signal the sound chip sends to audio device (whether that would be a simple earphone, or a full support Bluetooth audio kit) to announce that the sound broadcasting is finished... (fade out noise)

Same here.

At 0% volume mine does not hiss, however if I play a song then pause it there is a faint hiss for a second or two then it stops completely.

Here's another one, plug the charger in and here the buzzing/feedback through the earphones when charging...

srashedian said:
if it is for 2-3 seconds and then it stops, it's normal, not an issue, due to a low voltage signal the sound chip sends to audio device (whether that would be a simple earphone, or a full support Bluetooth audio kit) to announce that the sound broadcasting is finished... (fade out noise)
Click to expand...
Click to collapse
No, the problem that I'm experiencing and trying to see if others experience is whether the hiss is happening DURING the music. I understand if you listen to music at above 50% you most likely will not hear it during the music.

Yes, I have got the same problem and it is caused by very poor SNR of One X DAC or analog circuit.
It is very annoying for me, as I use sensitive IEMs and my old HD2 has not got this issue at all - I just find hard to accept that I have to hear audio noise in 2012 flaghsip device. There are some workarounds possible that can POSSIBLY at least partially mitigate the problem:
1. Use less sensitive headphones
2. Use some kind of attenuator, like:
http://www.ebay.co.uk/itm/Sound-lev...13488602?pt=US_Headphones&hash=item1e6f218cda
and increase listening volume at the same time

Issue confirmed. Could not believe that in this day and age I am confronted with such an obvious hiss on this top-of-the-line HTC phone.
Coming from the S2, I have not been impressed with the quality of the One X. I like the screen though, when I can't see any yellow spots, that is.
a704e said:
Seen quite a few topics on this, seems no one has a solution.
What I'm trying to accomplish with this is to see if EVERY HTC One X has this problem of a hissing noise in the background.
The hissing noise sounds somewhat like television white noise, and is apparent when playing music at low volume and during quiet parts of a song.
Testing Method:
i) Using headphones/earphones/whatever that plugs in the headphone port,
ii) Play music or other audio.
iii) Turn volume down to zero (0%)
iv) Listen for the noise.
Repeat method with no headphones i.e. with speaker, and put speaker up to your ear (very close). Try and listen for the noise.
Click to expand...
Click to collapse

Will an external DAC help with this problem, if even usable with a phone?
Sent from my HTC One X

I probably should have said in my original post but yes I have the issue and noticed it....
Alternative was to use Bluetooth, I personally might get an APT-X adaptor thats portable so I can connect to my home cinema system or car stereo through the jack input....

I wonder if there's any One X without this problem, such as newer batches etc

a704e said:
Will an external DAC help with this problem, if even usable with a phone?
Click to expand...
Click to collapse
If you can feed it a digital signal, then yeah, by all means it would help. I've not looked into it, I dunno if it's possible.

about 3 peoples said there it is normal so why continue this ? lol it have everything that make music,sounds.. its normal due to low voltage to earphones and there is currently no technology that can stop this noise...

Sramie said:
about 3 peoples said there it is normal so why continue this ? lol it have everything that make music,sounds.. its normal due to low voltage to earphones and there is currently no technology that can stop this noise...
Click to expand...
Click to collapse
Larger sample size. And also speaker out has this problem, not just headphones. And why other phones don't have this problem?
Sent from my HTC One X using xda app-developers app

cfm +1
using music app or tune in radio connecting to my cars aux in via 3.5mm connection cable to utilize audio device and loudspeakers in car, and it is even more noticeable.. (the sound is great though) also you hear hiss and noises as inerference effect from the the engine clearly in silence between track changes
Sent from my HTC One X using xda premium

I have it as well, but im pretty sure iv heard the exact same noise on most consumer devices ive had like my ipod and old s2.. didnt even think about it till i saw this thread.
If it bothers you that much just email htc and see what they say...

Audio issue in car using Line Out input in BMW

Has anyone else out there connected their M8 to their car using 3.5mm and noticed a strange whining and hissing noise prior to any actual audio being played?
The noise is very apparent, but as soon as you start some audio (Spotify/Deezer/Google/HTC player) its fine, and that includes any quiet bits in a song. Its when there is no audio being pushed out there seems to be this problem,
I havent noticed it on my headphones, but cant confirm as I left them in the office last week. Anyone else had a similar issue?
M8 is stock with latest updates for UK version.

stratplayer said:
Has anyone else out there connected their M8 to their car using 3.5mm and noticed a strange whining and hissing noise prior to any actual audio being played?
The noise is very apparent, but as soon as you start some audio (Spotify/Deezer/Google/HTC player) its fine, and that includes any quiet bits in a song. Its when there is no audio being pushed out there seems to be this problem,
I havent noticed it on my headphones, but cant confirm as I left them in the office last week. Anyone else had a similar issue?
M8 is stock with latest updates for UK version.
Click to expand...
Click to collapse
Your cable must be loose or bad

Try a better shielded cable. Also, turn volume to max on the phone to get a better signal and adjust desired volume in the car.
Sent from my HTC One_M8 using XDA Free mobile app

estpoc said:
Try a better shielded cable. Also, turn volume to max on the phone to get a better signal and adjust desired volume in the car.
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
I have tried several cables (one pro series) and it makes no difference.
I have only just upgraded to this phone a week ago from my Galaxy Note 3, which did not have any issues at all.

stratplayer said:
I have tried several cables (one pro series) and it makes no difference.
I have only just upgraded to this phone a week ago from my Galaxy Note 3, which did not have any issues at all.
Click to expand...
Click to collapse
Are you charging your phone while it's connected?
Try it without power or with an external battery.

philliple97 said:
Are you charging your phone while it's connected?
Try it without power or with an external battery.
Click to expand...
Click to collapse
Unfortunately not, I would expect some interference if I had connected it to the 12V charger, but its just playing as a phone with only the audio lead connected, nothing else!
Most annoying is that you have to pay £240 more to BMW for audio bluetooth.... grrrrrrr

stratplayer said:
Has anyone else out there connected their M8 to their car using 3.5mm and noticed a strange whining and hissing noise prior to any actual audio being played?
The noise is very apparent, but as soon as you start some audio (Spotify/Deezer/Google/HTC player) its fine, and that includes any quiet bits in a song. Its when there is no audio being pushed out there seems to be this problem,
I havent noticed it on my headphones, but cant confirm as I left them in the office last week. Anyone else had a similar issue?
M8 is stock with latest updates for UK version.
Click to expand...
Click to collapse
I am an installer at a car audio shop. We like to hardwire bluetooth audio adapters to the factory aux. Your local reputable shop should be able to do it in your bmw no problem. Use this part, as cheaper ones tend to have noise. This has fm mod which you will not be using, but has true analog out that they can hardwire to the back of your aux jack where nothing is seen. At my shop, I charge $100 labor and $100 for the part.
http://www.pac-audio.com/productDetails.aspx?ProductId=1097&CategoryID=55

Yes on some occasions i have experienced the same noise.
Its not a cable issue as i have checked grounding, used several cables, and tested with other devices.
It also clears up on its on once you use an app to play music.
I use siriusxm, play music, and pandora..

Headphones buzzing sound

Not sure if anyone else is experiencing this but I have a buzzing sound in my headphones in the left ear. It is fairly loud when the phone is idling. When I switch apps or screens it goes away momentarily then starts again. I have tested it in the music app and it does not appear to be an issue while playing music. I checked some very low volume sources and its not there. Still I wonder if I have a bad unit or have something activated doing this. I am completely stock new AT&T LG G3.
Update: After testing a few more sets of headphones, this only happens on my Bose QC15s which have the noise cancellation. Its interesting though that the Bose are dead silent on my Galaxy S5 and my wifes iphone. I tried both cables with them (since one is designed for idevices) but it doesn't make a difference. Not sure what interference they are picking up but I think I will take them to an AT&T store this weekend and see if it does it on their display models.

Is it anything like...
http://forum.xda-developers.com/showthread.php?t=2804065
Thanks
Christopher.
Sent from my LG-D855 using XDA Free mobile app

I think it's the same thing. With the Bose it's like a humming buzzing sound. I don't hear it at all with the Apple $79 IEMs. They are listed at 23ohm impedance. With mine it's as if theorizing switches on and off though. I can switch apps or play music and its dead quiet after I immediately pause but then it clicks back to buzzing.
Sent from my LG-D850 using XDA Free mobile app

awtryau89 said:
I think it's the same thing. With the Bose it's like a humming buzzing sound. I don't hear it at all with the Apple $79 IEMs. They are listed at 23ohm impedance. With mine it's as if theorizing switches on and off though. I can switch apps or play music and its dead quiet after I immediately pause but then it clicks back to buzzing.
Sent from my LG-D850 using XDA Free mobile app
Click to expand...
Click to collapse
Same here, Bose QC20 LG G3 D855... Left Channel buzzing.
Do you think it's a defect of the phone?

they all have this problem, let's hope an update

olivierdo said:
they all have this problem, let's hope an update
Click to expand...
Click to collapse
I was almost returning my G3 and i was like "Hell no, again..." , i have exchanged my nexus 5, 5 times! and still has the same problem!

One interesting thing I will note guys, when I plug my headphones in that I hear a buzzing sound, I get the headphone icon in the NB. When I plug in the Apple headphones that I cannot hear the buzzing sound at all I get the headset icon in the NB.
I have read this is a Kit Kat 4.4 issue but I did not have it at all with a Galaxy S5. I am hoping it will be fixed soon but I am thinking about grabbing some different headphones anyway.

I have the buzzing just listening through the earpiece on the phone itself, no headphones required. I have the T-Mobile D851 model. So one would theorize that this is also using power since it's powering the earpiece to make noise. Some kind of electrical interference in the phone itself would be my guess.

Hi. Just got my UK spec G3 in the last few hours and I've just come across what I believe is the same problem. There is a distinct buzzing/crackling/static sounds when I have headphones connected via the 3.5mm jack. The sound is only present when I have certain media playing (using Spotify at the moment). I only notice this when connected using the jack and not when using my Bluetooth receiver (HTC BH S600). I did hear this while using two pairs of earphones while they were directly plugged into the device, the LG QuadBeat 2s from my G3 and the in box headphones from my old HTC One M7.

This has to be a software problem. I was just testing again and the buzzing becomes stronger in any app I use just when I touch the screen and scroll. I hope this is an easy fix in a custom rom. Also as I reported earlier, I do not have the buzzing during playback. I know this because I have tested some very quiet tracks and also checked on some very long gaps between songs. If it is humming it is much quieter. Only when I exit out of the Music app it is immediately quiet then it clicks in at about 2-3 seconds. I have also had a few quirks today where my headphones come up with the Aux Icon then after pausing the Music app a few times they switch to the Headset icon.
Not really sure what is going on but there has to be a software fix.
I will say the Music app sounds unbelievable with Viper4Android installed. It definitely has more oomph than with Play Music. Comparing the same tracks in both apps back and forth, the Music app is cleaner. Not sure what LG has done in that app but I like it.

I only get a buzz during charging. Disconnect the charger and it goes away. Most devices I've owned have the same issue recently. S4, S5, note 3, moto maxx, moto X, nexus 5 have all done it to me but only while charging

I have a really nasty popping crackling sound in between tracks when using aux in my car, but headphones no issues... Never had that problem at all on my nexus 5 so it can't be my head unit in my car

I wanted to post an update to this problem. I originally reported I had this issue with my Bose QC15 headphones. I do not have this issue with my Apple In Ear headphones. Today I was diagnosing things again and had been listening the the Apples. The Apples always correctly have the headphone icon show up in the Notification bar. When I plug in the Bose, I always get the Aux icon. This got me to thinking about if the cable was different. I pulled the cable out of the Bose and on the end that inserts into the headphones themselves there is a Hi Low switch. Mine was on high. When I switched it to Low, the G3 started to recognize them as headphones and not show the Aux icon. The hissing and buzzing immediately went away and its dead quiet. This switch is an input level switch and undoubtedly having it on Hi causes the G3 to not recognize the Bose properly.
There is a thread about the Aux input problem and I think they have it diagnosed. Its going to take some software manipulations. I listen to my G3 in my car through Bluetooth so I do not experience any issues on that end like the folks in that thread. As for headphones, I am not having the issue with my 2 sets.

Just a little update...
Updated to V10E, issue seems to be fixed...
No more buzzing noise in my left channel...
QC20
Sent from from my LG-D855

awtryau89 said:
I wanted to post an update to this problem. I originally reported I had this issue with my Bose QC15 headphones. I do not have this issue with my Apple In Ear headphones. Today I was diagnosing things again and had been listening the the Apples. The Apples always correctly have the headphone icon show up in the Notification bar. When I plug in the Bose, I always get the Aux icon. This got me to thinking about if the cable was different. I pulled the cable out of the Bose and on the end that inserts into the headphones themselves there is a Hi Low switch. Mine was on high. When I switched it to Low, the G3 started to recognize them as headphones and not show the Aux icon. The hissing and buzzing immediately went away and its dead quiet. This switch is an input level switch and undoubtedly having it on Hi causes the G3 to not recognize the Bose properly.
There is a thread about the Aux input problem and I think they have it diagnosed. Its going to take some software manipulations. I listen to my G3 in my car through Bluetooth so I do not experience any issues on that end like the folks in that thread. As for headphones, I am not having the issue with my 2 sets.
Click to expand...
Click to collapse
I have this problem when I plug into the car aux port (noise in between tracks). Just a quick question, which icon should appear in the NB if I plug in an audio cable from the Aux socket?

EpicChineseTime said:
Just a little update...
Updated to V10E, issue seems to be fixed...
No more buzzing noise in my left channel...
QC20
Sent from from my LG-D855
Click to expand...
Click to collapse
?? I'm in v10e and always thé sale problem

olivierdo said:
?? I'm in v10e and always thé sale problem
Click to expand...
Click to collapse
Mine it's resolved... [emoji5]
How strange...
Sent from from my LG-D855

I picked up a D855 V10d (Telstra branded Australia) two days ago and noticed this yesterday myself.
I have Shure SE425 canals and they make the static noise when idle, very noticeable on these headphones. When music or audio is playing the static goes away. This is of course only when the charger is plugged in.
I tested it with the LG headphones that came with the phone and the noise is still there but softer, grabbed my Samsung headphones that came with my S4 and couldn't hear anything. I believe it's due to the resistance of the headphones.
Another test was to turn off the phone and charge it with the headphones plugged in, no static noise if I did this.
Going to exchange the phone today as it's unacceptable, I primarily use it at work to listen to music and often charge it at the same time.

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.

Hiss on earphones with low volume

I got my note 4 dev edition on Tuesday. I like to listen to podcast via pocketcasts and music through amazon prime music app, pandora and spotify. I notice at low levels there is an annoying hiss/ white noise that constantly is audible. I use these same apps on my iphone 6 plus and have never experienced this. I usually use yurbuds that direct the sound directly into the ears but it occurs with my old samsung earphones as well. (Verizon to cheap to allow them to include the earphones).
Is anyone else experiencing this? I tried to go into the play music app and use the equalizer but this had little affect. Is is an issue in 4.4.4 or could I have a bad phone or bad DAC??

I get the same problem as well with a Canadian Note 4 (N910W8). It's very annoying trying to listen to audiobooks or podcasts. Did not have this problem with the same audiobooks on Nexus 4. It seems like the hissing / static does not get louder by raising the volume so it's always present if volume is not muted and is very noticeable with spoken voice. Tried several players and it happens with all so it's not just Samsung Music with SoundAlive. I hope this is something that can be eventually improved and not "by design".

Are you plugged into a USB charger when you are listening?

mithusingh32 said:
Are you plugged into a USB charger when you are listening?
Click to expand...
Click to collapse
I thought that might have been the problem as well but it sounds exactly the same when plugged in or not. It sounds like hissing and a bit of crackling after spoken words or pauses between sentences, very noticeable even at only 1 volume step from muted. Probably happens to music, videos and games as well but may not be as noticeable.
I've tried stock, custom roms, volume mods and Viper4Android and tried different players that I know use different playback methods.
I don't think there's a quick fix for this problem and we'll probably all have to live with it. Here's hoping Samsung's Lollipop update brings improvements.

Weird. I dont get a hiss at all unless its plugged into a USB charger.
Might be a hardware issue.

Turns out that it's affecting all 3 of my Sennheiser headphones but not the stock headphones. Never had a problem with these headphones on any device I had within the last 7 years.
It has to do with the low impedance of my headphones and the fact that the Note does not provide enough power to drive the headphones correctly. I went and purchased a 36ohm impedance adapter on eBay (from awaudio) and it got rid of my problem! My remote control on the headphones no longer work with the adapter but the microphone does. I've also got a 14ohm adapter in the mail that I've yet to try so I cannot currently comment on using more or less than the 36ohm I've got now.
I found the idea to try this reading through long threads in the Galaxy S3 forums so this isn't a new problem to Samsung. Many people have exchanged their S3s to correct the problem to no avail. The good news is that the problem was eventually fixed in a firmware update so I guess it's possible for the Note 4 as well but I'm not holding my breath for that.
I believe that the sound may not be quite as strong with the adapter but the ROM I'm using has the sound boost mod and is more than loud enough so I cannot complain. There may not be an easy way to fix this on a Verizon device if you need the volume as loud as with the stock headphones.
Night and day difference when listening to audiobooks or podcasts with low impedance headphones.

Power might be the issue, but I know a lot of others dealt with this and replacing ended up working. I think on the n2 the headphone Jacks were a bit loose but don't remember