yashsingh1/xdaforums huggingface dataset:
[G2 General] badchip:
I can confirm that this is exactly what happens on my device too. I'm on 4.2.2 now with Viper Audio installed. Good stuff. I'll probably go CM or Mahdi soon, I'm just waiting for them to iron out the bulk of bugs that exists in both. Like gallery crashing, etc..
[G2 General] :
I did not have it on Vodafone Germany d802 NL suffix and I did have it on no name Rom.

For majority it might be dirty jack.

Any of you tried updating via LG mobile support suite (official one) with a factory reset.

send from the jungle
[G2 General] metalurgus:
And it certainly cleans up itself during I roll back to 4.2.2?

And then becomes dirty once I update again?

I'm pritty sure that everyone has those noise, but some earphones reduce it, and some do not. Ovners of headphones which reduce the noise just do not notice it. I had to silence all the noises at home as much as I could to hear the problem on the stock quad beat earphones, but it really is present.

Those ones who don't hear the noise please try to set volume as low as you can, but not silent. And then try not listening to the music, but just tapping on some button, or whatever should produce short sound. You'll hear the noise for about 0.5-1 sec.
[G2 General] Norside:
I do also have this issue...pretty annoying:(

For those who don't have the issue play a relaxing song with just vocals like uncover by zara larsson etc, then you will hear it a lot clearer that on rock and heavy metal songs from Metallica:p
[G2 General] fallenwout:
Can somebody provide me a link to get back to 4.2.2 without root? Audio is really bad and i got 92% wakelock with battery estilates of 16hrs instead of an estimation of 55hrs.

I am really not hppy with 4.4.2
[G2 General] hahdi:
Official Vodafone OTA 4.4.2. I also have this issue.

Anyone messaged LG Germany about this yet? I dont have twitter.
[G2 General] Norside:
This one? http://xdaforums.com/showthread.php?t=2432476
[G2 General] tlkl:
I have the issue whit akg headphones, i return to jb

Enviado desde mi Nexus 7 mediante Tapatalk
[G2 General] farhanito:
I

Or simply go to homescreen, and change volume level using volume rocker button..

Just tried CloudyPro II (G PRO 2 port rom), the hissing is very loud, even with stock quad beat.

Guess the problem lies within kernel level. ?
[G2 General] badchip:
You are most likely correct. I do believe that it's a kernel issue. Maybe someone can try using a custom kernel on his stock 4.4 and let us know if it helps.
[G2 General] atsfrnd:
It's definitely kernel issue.. I've experienced similar thing when trying out different kernel on JB 4.2.2..

Sent from my G2
[G2 General] :
yeah but you missed my point on how did you upgrade and try a different path to see if the issue occurs

send from the jungle
[G2 General] ephumuris:
There are people with the standard stock rom provided on phone who have taken the OTA and got this issue so i'm sure it's not a "how we upgraded" issue.
[G2 General] fallenwout:
Me
[G2 General] ephumuris:
Case. In. Point.
[G2 General] :
agreed, then kernel sounds plausible. There is a custom kernel in original development thread that might not have it. worth a shot I think

send from the jungle
[G2 General] ephumuris:
Can someone on Jellybean rom pull mixer_paths.xml from system/etc and upload it here please.
[G2 General] citytrader:
There is not mixer_paths.xml on JB, its only in KitKrap

Any one could test if it the same horrible issue like me?... when I use Skype or any other VOIP service, on the other end they hear echo of their voice, on my end there is no echo.
[G2 General] ephumuris:
With that kernel my rom didn't boot and the splash screen went all messed up.

OK and even after restoring my original boot.img my screen is all messed up?!

Ok after installung that kernel i now have some vertical lines stuck down the right hand side of my screen. There are around 5 the pixels just look...dead. I've installed stock Jellybean KDZ and it's still the same... Gutted!
[G2 General] Voje:
Could you please explain how he is incompetent? Does he not know how to use his ears? Strange choice of wording there.

Anyways, some people are always going to defend what they believe in and throw **** at other peoples experience and opinion; I for one will as soulreaver1 not buy a LG product for some time, as they have created what seems to me a half-hearted product - ref hissing, overheating etc.

But please, use your money the way you want, but don't throw **** at people only because they choose to use their money differently.
[G2 General] :
thats just rude and not nice. Across all headphones one should not have this issue especially because it was marketed as a high end audio device, and the dac thats included.
[G2 General] wulsic:
Guys watch your language and if you dont want to buy an lg fine then get a samsung or an apple and thats the opinion of you guys soulreaver and voje but other people think different about it but every got his own oppinion and im fine with it but nobody must blame lg if the appearance or something else is ugly you bought it your fault LG has a new design like buttons on back whats smart for big phones. My opinion is that lg sometimes makes mistakes yes but further they are doing good. First dualcore phone first quadcore.
[G2 General] Voje:
Nobody has complained about the design or anything like that, we know what we have bought.

But bad hardware, and bad software is a completely different issue.

And first is not always best...

Ps: listing Samsung and Apple as options shows that you are just throwing a fit... As if I would go back to Samsung after owning a gt-i9100...
[G2 General] giorgosfil13:
I've had the hissing sound since I updated to kit kat and it is very annoying. I know that this is off topic, but does anyone have a good stable custom rom to suggest that is bug-crash free? I don't want to root my phone and have to deal with all sorts of little things to fix every now and then like I did with my previous Samsung Galaxy S3. I want something that just works great with no issues.
[G2 General] mannequin:
quite interesting that there are no reports of D801 ever experiencing this issue, no matter what KK version is.
[G2 General] Cienight:
I'll give you a mirror for the latest 80220f

http://lg-phone-firmware.com/tool.php?idclick=10174
[G2 General] seskima:
Has anyone found a fix for this yet?

Running the latest D80220f-EUR-XX build the hiss is still there, the audio is perfectly clear on CM11.

Using Grado SR80i headphones the distortion is worse than using a pair of Beats headphones.

This is very frustrating, I cant believe LG allowed this to slip through their testing phase?!!!
[G2 General] mannequin:
so just to confirm, running latest KK (D80120E) on white T-mobile D801, there's no hiss/distortion whatsoever. like i said before, i haven't seen anybody reporting this issue for D801 phones to begin with. i need more testing to figure out if it sounds different to JB in any way though.
[G2 General] Jhon998:
Hissing in LG G Pad!!

I played a punch of games and ALL of them produced hissing sound!

I also tried another ROMs (4.4+) and the ALL have the problem, not just stock!

please fix this common problem, alos in G3, G2 and G Pad who knows maybe G Pro 2?
[G2 General] themayneman:
Sound bug gone

Was running CloudyG3 1.2 on the LG G2 D802 and had this sound bug, was the only problem i had with the rom.

Installed the latest dorimanx kernal and the hissing has completely gone!

CloudyG3 1.2 + dorimanx kernal is the best! :good:
[G2 General] mannequin:
well, whad'ya know?

http://xdaforums.com/lg-g3/help/hissing-noise-left-ear-playing-music-t2804065

http://androidforums.com/lg-g3/858302-lg-g3-audio-quality-issue.html

etc

i still think it's not LG's issue per se.
[G2 General] seriallife:
updating your kernel helps too
[G2 General] thorindwarf:
I'm with D802 and received update (~120MB D80220f-EUR-XX) which fixed the problem entirely. Now it's a perfect device with kitkat.

Also it seems that it has fixed some wrong knockon wakeups by holding the display when off and sliding it a bit.

Cheers!
[G2 General] michelpas:
I can confirm the tweaksbox and the file copy is working. Before I heard a real hiss on my quietcomfort 25 and now it's perfect!
[G2 General] gintariukeas:
Flashing Bruce kernel works great also
[G2 General] junaidziachughtai:
lg g2 sound problem resolved.

I updgraded my lg g2 from 4.2.2. Jellybean to 4.4.2. Kit kat and i had the same issue of hissing sound in left ear piece of my headphones. I got annoyed and surfed internet for possible solutions. And i came across one suggestion of again updating my software. I checked and downloaded the another new update of around 135 mb and wallah sounds became perfect just like earlier and it solved my sound problem. Now i have disabled automatic software updates for preventing issues In future... im writing this just to let know you guys thats this issue is not permanent and recoverable.
[G2 General] :
I really want to try that, but where did you download the update? This is my first day with the phone and I received the update (D80220g-EUR-XX) via OTA and I got this really annoying sound bug (I thought it was CPU noise, but apparently there's still chance).
[G2 General] mmasterd:
Only Dorimanx

Only lastest Dorimanx 9.6 kernel can eliminate problem completely for me. Thanks the author for this.
[G2 General] ratedadorable:
Em also facing problem regarding voice call and playing videos on mx player any solution ?
[G2 General] Bsls3:
The solution

After a lot of trying i found out that if you go to accessibility and change the sound balance all the way to the right, the noise is gone! And you still hear stereo sound.
[G2 General] Zarrick19:
So, is there any permanent fix? For a while I was using G2 TweaksBox where is an option to kind-of-fix-it, I was using the phone like this for a few months, honestly, I haven't noticed any hiss, cracking or anything after checking that option, so I wasn't paying attention about fixing it permanently. A week ago I was on a trip, listening to some music and the hiss/cracking was back! I'm using hifi headphones Sennheiser IE80, and it's most noticeable at deep basses, it sounds like if the music was compressed, even though I'm listening to HQ FLAC. Is there any permanent fix for it? I've seen some tutorials like "do a ****load of steps then the hiss is gone until the music stops playing" and such, but nothing permanent...
[G2 General] Reza Takhshid:
Hissing+Crackling on LG L50 headphones or not!

Hello,

I have a similar issue on my newly bought LG L50. It comes with a 4.4.2 out of the box.

when ever a sound is played, music or else, when finished, it is followed by about a second of hissing then a crackling and it stops.

The hissing was inaudible without headphones or putting the phone's speaker right to my ear; but the crackling is very annoying. I had to turn off all the menu and touch feedback sounds in order to reduce the frequency of it happening.

wishing for a fix...
[G2 General] Zarrick19:
Anyone?
[G2 General] fallenwout:
Bruce kernel fixed it for me, even without g tweakbox.

Sent from my LG-D802
[G2 General] almanjulhijan:
Just try to flash another kernel...
[G2 General] Zarrick19:
Hmm, so some kernels might fix it, thanks. Even though I don't really like flashing around with my G2 because of the infamous black lines, so I'm still running stock KK only rooted and TWRP. But I think I will go for it.
[G2 General] ludovicien:
I just acquired another D802 after 3 months with a One plus One that sounded great but was plagued by touch screen problems.

That hiss is still there, noticeable on my xiaomi piston 2s and unacceptable on my main portable headphones - Sennheiser HD25-ii that work brilliantly with EVERY other portable device I have. Upgraded to 5.02 to see if it was fixed and no, it's worse than ever. I've had five of these things now.

Am I unlucky or is it a generalized hardware fault? Will a different rom or kernel really make any difference? I love this phone but unless I find a fix I'm going to have to get an S5. Someone save me!
[G2 General] AhamB:
I flashed the Bruce kernel (which was easy, and my G2 really does seem to be snappier now) and although the hissing was mostly gone, it was still there sporadically (short hisses every couple of seconds only when playing audio). The Xposed G2 Tweaksbox fix does remove that though and my audio is finally clean now, as it should be! :)
[G2 General] Blackwolf14:
Anyone else on Lolipop having this problem? Its annoying.

Device: LG G2 D800

Rom/Kernel: NDM 5. 5/Dorimanx 12.0
[G2 General] :
sorry bro, that sucks even harder. inbetween flashes did you do a factory reset or something to make sure its a clean install. Best report in that kernels thread what you did and what result was so they can fix it or prevent other people from doing that

send from the jungle
[G2 General] ephumuris:
I only flashed the D802 version which should have been fine. However when the rom tried to boot i watched the colour sort of drain from the screen and i knew something was wrong. I have done multiple resets, wipes and installed two different Jellybean KDZ files. The lines are still there. About 5 vertical lines from top to bottom of screen even through nav bar. Even tried a stuck pixel app to unstick them as such. No luck...

Hopefully i can get it sorted i've only had it 9 days...
[G2 General] yogoj:
still keep in 4.2.2. I will wait bugs disappearing.
[G2 General] Arkangel786:
Hi,

I've tested for this bug using 4 different headsets and I've got the same result on all of them - I DON'T have any issue with the sound at all.

My phone and software details are:

Phone: D802 International (UK)

Android: 4.4.2

Baseband version: M8974A-AAAANAZM-1.0.190084

Kernel version: 3.4.0

Build number: KOT49I.D80220b

Software version: D80220b-EUR-XX
[G2 General] kennguy:
Your model is 32GB and using DEU/GERMANY firmware? :rolleyes:
[G2 General] somemadcaaant:
I'm not sure it's a bug, i just tested 3 different headphones and found no noticble hissing or crackle on low or loud, then i tried my Astro A40's and a pair of old Nokia phones and they definitely had a lot of hissing and crackle. This happens with both Gpro2 roms, and i didn't try my Astros on 4.2.2 jelly so i don't have any comparison there. This doesn't worry me tho as i use my sennheiser or monster plugs which don't show any static at all.

It must be the incompatible or strange male plug connector configurations/wiring i'd say as the Astros are configured for the mix amp and microphone and the old Nokia phones have a microphone/music control pad pass thru on the cable itself.

I'll bet the headphones with the issue have a microphone or volume controls?

Edit: i have a D802 int.
[G2 General] BigBoyPL:
Guyz tested it before and after update and I have this sound problem too.

The best way to test it is mute all sounds, than connect headphones and play music. You could hear nothing when phone is muted but I can hear whip. It's not really loud. It's like 19KHz sound so some of you guyz can't hear it.

I've tested it on stock D802 headphones and on GT540 ones.

Factory reset don't solves this. Every sound action enables this whip for 5 seconds.
[G2 General] Frutek:
Well you are lucky :) My phone is D802 International (SEA) and this electronic noise is freaking loud in left earpiece. I wonder if they placed different audio chip revisions considering region your phone is from... Still waiting for official 20B for my SEA D802, maybe that will fix it ( doubt it tho ...)
[G2 General] BigBoyPL:
Guyz I have part sloved this issue. Need to test it but now it's good ;]

I will share what I've done.
[G2 General] Frutek:
Amazing !!! Good job man I was about to roll back to 4.2.2. :)
[G2 General] BigBoyPL:
So now my phone is freezed and I must wait when it will discharge at all to power off because I don't know hard reset key or hard power down key. So thats how end when you use service menu and you don't know exacly how it works.

Anyway it can be problem with microphone because when I do loopback test the problem with left headphone gone for about 20 seconds. But sounds that making "0" on numeric keypad induces other problem with left headphone.
[G2 General] farhanito:
I'm using Logitech UE900 which has 2 kind of cables (replaceable), one with volume control + mic, the other one is plain..

Both gave me hissing sounds.
[G2 General] Carter07:
Long press the power button and it will reboot, it's like putting off the battery.

Please can you explain better? I don't understand what's the "0" sound.
[G2 General] BigBoyPL:
I mean 0 sound when you go to dialing. Guyz try to put many "0" on dial. You will hear the hum with normal sound on left headphone and just normal sound on right headphone.
[G2 General] marektupa:
Hi,

I really doubt it has something to do with the region you live in. I´m from Czech Republick and on our forums are also few people, who deal with the problem. I personally bought my phone in Germany (32gb verison) and have really loud hissing sound!

my specification:

Android: 4.4.2

Baseband version: M8974A-AAAANAZM-1.0.190084

Kernel version: 3.4.0

Build number: KOT49I.D80220b

Software version: D80220b-EUR-XX

witch is just the same as Arkangel786, who reports no issues, witch means, that it depends on the type of earphones? Somebody says, that you can´t really hear it and other stuff like that, aber I cann assure you, that it is so loud in my case, that it´s really difficult to hear any music at all.
[G2 General] BigBoyPL:
Ok so unplug your headphones. Click reboot on your device. When your device will reboot plug the headphones. Go to dial keypad. Look about what sound keypad keys like 2,5,0,#. Delete all what you typed. Type in dial 3845#*802#, it will show Hidden Menu.

Click on ELT Test, switch to Manual Mode and click Test Start.

With pluged headphones Click on Audio Loopback to mark it and than click Test Start. Say something or blow breathe to all of your microphones (1st on top right, 2nd on bottom left near jack and 3rd on your headphones). Stay on test more than 20 seconds with saying or blowing breathe.

Click STOP, than do same with Audio loopback Mic1 Mic2 and Mic3 ( start test and blow breathe).

After all loopback test leave service menu and play some music.
[G2 General] Carter07:
So doing this music will play fine until next reboot?
[G2 General] marektupa:
I connected the phone to my big loudspeakers and as you can hear, it´s not just a quiet noise in backgroud.

http://youtu.be/Qge3b6EVgNQ
[G2 General] somemadcaaant:
Yeah I dunno that still kinda tells me your head phones wired for a Mic, doesn't matter if you replace the Mic cable with just stereo cable. I can do that with my A40's.

Just a theory anyways, my quad beats that came with the LG g2 has a volume and Mic but doesn't exhibit any static.

It's probably a bug tho with porting. It's got to be.
[G2 General] :
It`s enough just to do audio loopback, no need to test Mic1, Mic2, Mic3. Helps until next reboot
[G2 General] farhanito:
Yeah, I think you got a point.. Considering the quad beat (unusually) has mic+volume control on the left channel..
[G2 General] alienware231788:
Any fix yet?
[G2 General] Carter07:
It gets much better but unfortunately the problem doesn't disappear completely for me (stock earphones).

But it's more usable, good catch! :D
[G2 General] Arkangel786:
Yes
[G2 General] akbisw:
The hiss was always there since the beginning. If you had an iem with low impedance you'd easily notice it. You won't hear this with a 32 ohm headphone. The hiss is caused by the gain on the built in DAC. The only way to remedy this is to get Faux kernel and his faux sound app and lower the gain from there. That should completely get rid of the rid(well to the point where you can't hear it). Hope this helps someone. To try it I guess u need AOSP KitKat and custom kernel with Faux sound.
[G2 General] citytrader:
People having issues, please write in this facebook link: https://www.facebook.com/LGMobileSingapore?filter=2

Maybe when they release the SEA version, they will solve the bugs...
[G2 General] Frutek:
Im hearing hiss with Hifiman re-262 so it's not only the gain (150 ohm ):P
[G2 General] akbisw:
Lol I don't hear any with my htf600. I guess my htf is special [emoji12]. But I do hear audible hiss with all my IEMs. Lol I got fed up so much I'm using a otg cable and logitech USB DAC (10$ one) to listen to music Lmao [emoji20]
[G2 General] mannequin:
nice try but no. my D801 with 4.2.2 is dead silent no matter what i throw at it (and overall, one of the best sounding mobile devices i've heard). that's not the case with the same phone on kitkat and it has nothing to do with the gain.
[G2 General] :
For me it was one of the best sound for mobile device.. until 4.4.2:(
[G2 General] Frutek:
It's weird. I can hear it with all my headphones - akg 420 (16ohm - ridiculously noisy. It's the only one headphone I got and still hear quite high hissing on 4.2.2). akg 712pro & hifiman re262 still very noisy beside those two are low sensitivity and >60 ohm impedance .

---------- Post added at 07:09 PM ---------- Previous post was at 07:04 PM ----------

Might be your headphones not picking that sound easily. Try to rise your volume a bit and play some track (you can turn down audio gain with player EQ) and then pause it instantly and check for noise. Noise stays for like 1s then the DAC turn off headphone jack. I can still hear it with every headphone I got.
[G2 General] mannequin:
i have some very sensitive audio hardware here (also being part time audio engineer helps) but i can't reproduce ANY noise on 4.2.2.
[G2 General] :
4.2.2 or 4.4.2? that noise issue came with kitkat
[G2 General] mannequin:
i was replying to the statement that the noise was always there, no matter the version.
[G2 General] Frutek:
Then it's pretty obvious there must be some difference between DACs in D801 and D802. Might be some different revision and the libs/drivers are not tailored well for all the revisions. Hopefully it's not the fact some of our D802 are defective...

---------- Post added at 07:37 PM ---------- Previous post was at 07:27 PM ----------

This Audio Loopback test helps a lot. There's still slight noise but I guess it's the same as it was on 4.2.2.
[G2 General] raghavan_nvr:
I have the international 802 and i have the hissing sound esp. on left channel after upgrading to 4.4.2 !!
[G2 General] BigBoyPL:
Noone who have LGF320K/L/S have same issues ?

Guyz some of you have F320 kernel and system in your D802 ? And what about sound ?
[G2 General] sdrawkcab3:
This hiss is similar to the hiss I get on my D802 on an AOSP ROM running viper4android when I'm listening to music while charging.

I can't hear it at all while music is playing at levels I normally listen at. Granted, I'm not listening to very dynamic music... This hiss would bother me if I consumed primarily classical or jazz.

The gaps between songs make me cognizant of the issue, but I'll deal with that until it's fixed. Also, I clearly hear it in both channels so don't anyone go on a wild goose chase in the left channel.

On another note, stock audio on this phone is extraordinary. Coming from an AOSP ROM, the audio is night and day different!
[G2 General] Incep:
I'm also affected by this bug. D802,Norway. Running cloudy pro2. Using bose quiet comfort. It's very prominent.

I know that there is a noise problem on this model as well as the nexus 5. The reason the volume is so low on a stock g2 is because an increase would induce a distortion, which is more apparent on the left channel than the right one. On N5 it is noticeable. It's a bug the engineers have just left ignored, I wouldn't be surprised if this is somehow related.

Source : anandtech phone amplifier test a few months back.
[G2 General] awes0me1:
I have the problem with my old Note 1 ear buds, but it goes away when I use the ear buds that came with the phone, also it's none existent withy iPod ear pods.
[G2 General] mannequin:
can it be a widespread kitkat issue? all new Samsung pro tabs suffer from something very similar: they produce noise while producing audio at 0 volume or right after the audio signal stops. it's beyond annoying. i think it's time for google to pull the head out of their asses and hire an audio engineer. Android audio continues to suck, badly.