yashsingh1/xdaforums huggingface dataset:
[G2 General] soulreaver1:
I'm still on 4.2.2 just because it sounds perfect with my high end Ultimate Ears UE900 iems. I would never buy a phone with such audio flaws (as it is on 4.4) and I will never buy any LG product again if they won't fix it.
[G2 General] mannequin:
it's not LG's fault. blame Google, 4.4 brought nothing but issues.
[G2 General] soulreaver1:
You could be right but somehow the issue is not present on other kitkat powered devices like HTC One m8 or Xperia Z2. It looks like it is caused by the new audio routing (low latency audio etc.) that was introduced in KK but can by fixed as the htc shows.
[G2 General] Lemonato:
For anyone who is rooted (probably most), try G2 Tweaksbox

It has a function under sound tweaks to reduce hissing with KK. Not sure if you will need to purchase it first, I did before I found the setting so I don't know if it was available before buying. But worth the $2 anyway.

Before it was really obvious when playing something with a quiet part but now I can't hear it at all. Much easier fix than installing a custom recovery, then upgrading to 20d, then possibly losing apps/settings, then trying out different kernels, etc.

Hope it works for others here. Otherwise check out the full thread for tweaksbox which apparently has a full fix.

I'm running KOT49I.D802T20b
[G2 General] :
the hissing is gone, but the sound is still not that great. On stock at least when I tried it.
[G2 General] erto90:
Let me understand a thing: this audio hissing/crackling issue is present also on flex rom?
[G2 General] Voje:
The tweaksbox solution lowered the hissing, so now it doesn't bother me that much. But it also lowered the sound drastically..

But definitely a step in the right direction!

Sent fra min LG-D802 via Tapatalk

---------- Post added at 05:28 PM ---------- Previous post was at 04:32 PM ----------

After doing a difference compare between the mixer_path.xml from the tweaksbox thread and mahdi's mixer_path.xml, and changing the values which differed - not the code, but just the values - I now have regular sound volume, and the hissing is almost unbearable..

Very nice!

Maybe get dr87 to take a look at the difference in code would get us somewhere?

But I have to say that I am curious as to what the tick in tweaksbox does...

Sent fra min LG-D802 via Tapatalk

---------- Post added at 05:28 PM ---------- Previous post was at 05:28 PM ----------

Haha, not unbearable, but unHearable!

Sent fra min LG-D802 via Tapatalk
[G2 General] :
yeah dr87 uses different stuff (nexus 5) then the stock rom to fix it. Its a lot better then stock if pure dr87. Dont think stock/ mahdi hybrid is possible. Still has some small issues thought as its beta. Great nonetheless. None troubling enough for me.
[G2 General] Voje:
I think you misunderstood.

I run latest mahdi, and still have the hissing issue.

But after applying tweaksbox and the comparing and changing of values in mixer_path.xml, my mahdi setup is now a lot better.

I'll experiment some more, but it seems like they have found something which drastically betters the situation.

Sent fra min LG-D802 via Tapatalk
[G2 General] The MBG:
I've just checked in after some time and I can't believe this still hasn't been sorted. Keep on with 4.2.2 I guess *sigh*.
[G2 General] sradtke:
I'm having two separate issues with my G2 phone. Namely the poor audio quality and issues pairing it with my Ultimate Ears 9000 headphones.

I was considering downgrading to 4.2.2. to try and resolve the issue but an attempt at system recovery on the phone last night still ended me up with 4.4.2. on the phone.

Did you phone ship with KitKat or Jellybean pre-loaded?
[G2 General] :
current only way to jb is via the sticky here return to stock. It requires a hacked version of the mobile suite, a jb rom and patience in getting it right. good luck post questions for that there.

tip backup efs before on and off computer. requires root and searching how to.

yes voids warrantee
[G2 General] Voje:
I have to inform that after applying the mixer_paths.xml from tweaksbox thread some problems have appeared.

As i said earlier, i compared the mixer_paths.xml contained within mahdi and the one from tweaksbox and changed some values - because the sound was so low with the tweaksbox one - and after that the hissing was noticably lower.

I was content, until i made a phone call.

The recipient of said phone call, complained that they almost couldn't hear me.

This leads me to think that what lowered the hissing, was some changes to mics.

F.ex this change:

(tweaksbox)

<path name="speaker-mic">

<path name="adc5" />

<ctl name="ADC5 Volume" value="16" />

<ctl name="DEC2 Volume" value="99" />

(mahdi)

<path name="speaker-mic">

<path name="adc1" />

<ctl name="ADC1 Volume" value="16" />

<ctl name="DEC6 Volume" value="99" />

and others.

So right now, i have to decide between hissing and talking very loud to get heard.

I wish I understood coding better so that i could decifer the difference between the two mixer_....... files.
[G2 General] petrosy:
Tried d80220D with kernel Dorimanx kernel 4.4 KK. So far the best result with my Sennheiser HD380pro. However there is still a faint hiss in my right ear. May be in both ears and I am starting to go deaf ...but that is another issue altogether ;)

However being a music snob a hiss is completely unacceptable.... so back to 4.2.2 ... CM 11 works fine on 4.4.2 I have lost all faith in LG Software developers or the company's lack of commitment to their customers!
[G2 General] :
you may be on to something.

experiment with the adc1 settings. Its declared in mixer paths, and in soc something file. Couldnt find it on mahdi anymore.

those line up with other paths, etc. Not sure if you break stuff but finding out which is the proper mike path could help.
[G2 General] 0verseer:
Just got the phone... and ofcourse I have this problem

So I got the LG G2 today, its really fast!

Did not try the 3,5mm headphone jack before I upgraded to KitKat so I don't know if I had this problem with Jelly Bean, but yea.. I also

have this audio problem and it really put me off since this is why I bought the phone.

I wanted good sound quality and the power to playback lossless since I am a music producer...

The problem for me is mostly apparent in lower volumes, but is still hearable in higher, and its the same with either headphones, my reference headphones and the quad-whatever sucky in-ear plugs I got with the phone -_-

One question though, is the bug present in Cyanogen?

Any other bugs in CM that perhaps I want to know before I decide to root/custom flash my phone?

Or pehaps I'll just go back to 4.2.2.
[G2 General] soulreaver1:
As far i know the only ROM that is completely free of the problem is stock 4.2.2. It sounds beautiful with top tier BA iems... In my opinion close to dedicated high end DAPs like ibasso dx50 or fiio x3, but of course is not as powerful with cans.
[G2 General] 0verseer:
Heh, well guess I am downgrading then. :P
[G2 General] P_Toti:
That's not correct. The mixer_path I patched does not change that value. You should compare the original mixer_path that comes with stock rom if you want to see the differences. I don't know what mixer_path comes with the rom you are using. Also patched mixer_path and tweaksbox patch is almost for 20b version. The hissing is partially solved in 20d and should be totally solved if you use the dorimanx kernel.

Inviato dal mio LG-D802 utilizzando Tapatalk
[G2 General] Voje:
Are you the person behind the tweaksbox fix thing?

If you read my earlier posts, I mention that I have changed the values because i found the volume way to low.

I compared the mixer... from the tweaksbox thread and the one from the rom I am using - latest Mahdi - and kept the code from tweaksbox mixer, but changed the values..

This made the volume nice, and kept the hissing away.

But now no-one can hear me in-call.

I am not at all blaming you, because I changed the values knowing that it could cause problems, I'm just trying to solve this issue in a manner that I'm satisfied with:)

Dorimanx is a stock-only kernel isn't it?

Maybe i should try to lower some of the values back to the original, but keep high the ones having to do with volume?

And when i have you here, may i ask you what coding tweaksbox is adding/modifying when you tick the "hissing audio......"?

Or is it just the change of mixer_path...... that solves the problem?
[G2 General] P_Toti:
That explains a lot. You should not use my mixer_path in a aosp rom. Yes dorimanx is for stock roms only. You maybe can send me your mixer_path I will take a look to it(anyway I won't be home before Tuesday). G2 tweaksbox sends some commands to the audiosystem service, it should work also for aosp roms actually but I never installed an aosp rom so I can't be sure. Both patched mixer_path and G2 Tweaksbox was needed to solve the hissing in the 20b, I don't know in the 20d what its changed I didn't take a look because users reported LG almost fixed it plus with dorimanx kernel has been reported to be totally fixed.

Inviato dal mio LG-D802 utilizzando Tapatalk
[G2 General] 0verseer:
Holy sh*t. Just as I was about to try and downgrade to 4.2.2 and possibly screwing up my phone, I got an update.

Now the weird static/hissing sounds are completely gone :D
[G2 General] :
lol which update, and is the range broad, on all earlier fixes I noticed a narrower range of frequencies, less bass and highs.

can you get the download url optained via

http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=YOURIMEIHERE
[G2 General] 0verseer:
I can't really tell anything about the frequencies since I've just tried with the crappy in-ear buds, but the sounds are gone atleast.

They've seem to have released it as an hotfix and not an update that changes version nr i think.

What does that link do?

I have:

Android version

4.4.2

Baseband Version:

M8974A-AAAANAZM-1.0.190084

Kernel Version:

3.4.0

Build Number

KOT49I.D80220d

Software Version:

D80220d-EUR-XX
[G2 General] :
it brings up a download link for the full rom ;)

16gb or 32gb?
[G2 General] jererc:
Hello!

I have the same problem with a LG G2.

android 4.4.2

build D80220a

The audio noise is low using the crappy original earplugs, but with my audio technica M50 or any other headphones it's so bad!

I can't even listen to my music anymore using the phone.

I'm pretty pissed right now about google and LG.

Waiting for the carrier update once LG rolls out their own update seems to be so complicated.
[G2 General] jererc:
Just exchanged the LG G2 for a HTC M8, which works like a charm so far!
[G2 General] Voje:
Doesn't anyone have insight into what changes was made for audio in the 20d update?

I had a chat with LG Norway today, and they pointed to this update. I replied that it helped, but that the problem was still there - I lied, since I haven't tried it, but feel that this thread back the claim up. I also mentioned the frequency range.

I was then told that this would go up the chain of command, and that they'll look into it.

But if anyone knows what changes was made, maybe we could get Dr87 to include them in mahdi? I know we have switched to n5 audio, but maybe there is some code which could be added?

Sent fra min LG-D802 via Tapatalk
[G2 General] :
the n5 sources are near perfect. Still some things most dont notice. They just need fix it and test it with:

-non hifi audio, yet highest quality to capture all frequences that are outputted. Then compare those wave files with a 4.2.2 lg g2 or another better audio device. They should be same for best quality.

-Play low volume recorded and repeat test

-Play high volume recorded and repeat test

record silence and repeat test

-For fun record a concert and compare waves with iPhone.

-Spitload of exploratory to test sound output when switching apps, switching different quality audio being played. etc.

-repeat all above for different players, such as video/ sound over otg. etc

Their audio testing department should up their game, especially in regression.
[G2 General] Voje:
Not trying to be rude, but if you used more paragraphs, your text would be easier to understand.

You say that n5 sources are near perfect, have they been updated lately? Is the next mahdibuild going to solve the hissing problem?

As for the testing I assume you mean LG, and yes, I couldn't agree more! But it seems like I was taken serious..

Sent fra min LG-D802 via Tapatalk
[G2 General] :
cool

yeah thanks for the feedback, I will try it next time.

the n5 sources Mahdi used are near perfect. Dr87 made a piece of art incorporating those. The Audio range is enjoyable, volume good and no hissing. However if you listen very carefully, this is on all 4.4.2 roms as well and also on stock, you hear a difference. The difference I feel is least on dr's rom.

Mostly on recording sound. However not so much as not to use the rom as daily.

But then again this last is my experience, others have reported it as perfect! I consider it so as well.

edit the newest mahdi611 just got better wow, listening is hitting the sweetspot right there! hahah thanks dr87
[G2 General] fallenwout:
First line support is trained for that. It is their job to make you feel important.
[G2 General] Voje:
Hmm, didn't know that fallenwout, but it makes sense..

Bachera: Well, I haven't downloaded the latest mahdi, but I have had the hissing bug from earliest 4.4 betas up until the 3/6 build. Hopefully this latest update will remove this "bug".

I completely agree with Dr having done a tremendous job with the adaption of n5 audio - this was my hope when buying the device - but as I said, hissing has been present.

Still, mahdi is the most solid 4.4 rom out there, dr87 is really a respectable developer imo..

Looking forward to installing the latest build!

Sorry to mention the paragraph thing, but hey:)

Sent fra min LG-D802 via Tapatalk
[G2 General] :
paragraphs are important! :)

the611 build is pretty solid, its got upstream changes/audio fixes from hammerhead making it a pure 4.4.3 release (Mahdi flavour). can recommend it highly.
[G2 General] clockyro:
so in other words there is a fix coming with the next update? this will be a real test for my future purchases from LG. Bad QA from LG.

I'm really interested if the G3 has the same issue.
[G2 General] Voje:
Guess we'll just have to wait and see..

Sent fra min LG-D802 via Tapatalk
[G2 General] mmasterd:
Slimkat!

I've just tested the last Slimkat build. The sound is amazing! Not only hissing is fixed but also sound became more clear. However the max volume is less than on stock based roms but sufficient for me, it is reasonable price for quality. I use BubleUpnp with HD flac and it seems that Slimkat support 192khz/24bit output since Neutron plays these file notably worse. Non-HD flac and mp3 are comparable.
[G2 General] Voje:
Did you flash the test build from arcardinal?

If not, then you are still at 4.2.2 sources, which would explain why there is no hiss.

If you did, then hmm..

From what I understand after reading the last 100~ posts, he based his work on dr87; and latest mahdi - which is maintained by dr87 - still has hiss issues, at least for me it does..

Sent fra min LG-D802 via Tapatalk
[G2 General] mmasterd:
I tested the 5.9 version from this post [URL=''http://xdaforums.com/showthread.php?t=2608271"][ROM][4.4.3] SlimKat [Build 5.9][D80X/LS980/VS980][OFFICIAL][/URL]. I've just tried mahdi-618. The sound is the same crap as on every other rom. On paranoid it is even worse.

On cyanogenmod nightly builds I have the same good sound. I feel that slimkat is slightly better, but it could be a placebo. To be honest, you can hear the noise using headphone amplifier. But it is a natural noise level of LG G2, it doesn't depend on headphone output volume level. So set headphone output volume on max if you use amplifier. Then it is not possible to hear noise in music unless you are going to hurt your ears.

So give a try to Slimkat or CM - I'm really happy with the sound quality.
[G2 General] :
how did you test? I think maybe your headphones are bust lol.
[G2 General] mmasterd:
:) I use Sennheiser HD448 with electric avenues pa2v2 amplifier. I don't know why, but on all stock mods, mahdi and paranoid hissing is very notable with this headphones. Volume boost program solves the issue partially but then there is some distortion in music, for example rock is quite messy.

Just wanted to say that only on Slimkat/Cyanogenmod I don't have hissing issue. Could be useful for somebody.
[G2 General] Voje:
As I said, those roms you mention are based on 4.2.2 sources, that'd why the hiss is not present. It is also not present on omni which are based on the same sources..

Sent fra min LG-D802 via Tapatalk
[G2 General] enkiiq:
i hate this phone

i bought g2 for battery life and clear sound then when did update to kitkat a noise is hearing from left in-ear phone

this is so annoying :crying:
[G2 General] Portauxbastard:
Using Mahdi and PA

I am not getting any of the hissing. I am using PA at the moment with Viper and sounds perfect. I was getting chirping with mahdi using viper but trying again on the 06/22 build. No chirping using DSP though.
[G2 General] turbocomppro:
Just want to chime in for I have a D802 Hong Kong unbranded that experienced this when I updated to the UK KK 20d (because I wanted to keep root). There were some annoying bugs so I overwrote it with the Hong Kong 20a. The hissing continued but all other bugs was totally gone. Then there was an OTA update 20b. I updated it to that and hissing is confirmed gone.
[G2 General] k0enf0rNL:
4.4.4 update

when will this update come to lg g2?
[G2 General] Voje:
My inside says it'll drop on the 4 of August, approximately at 12.43... Seconds before they announce the death of g2 support..
[G2 General] Ace42:
I love how the successor to my E970 has all these problems you won't find on the OG. And I'm referring to the hissing, random freezes, like the foreground app stops responding, data randomly stalls & requires long time to recover, etc.

Also the dead zone issue that you guys don't make a big deal out of, but that should literally be the #1 sticky on this forum.

Transmitted via Geass
[G2 General] sradtke:
LG G2 sound issue fixed in update D802T20d-AUS-XX

For any owners who are in Australia/New Zealand, there is a new update from LG out that I can confirm has fixed the sound issue. Perfect timing as well, literally the night before I get on a long distance flight to Europe lol. Anyway, just thought I'd let people know.
[G2 General] marinanana:
My G2 hissing was also fixed today with D80220f-EUR-XX :good: :D
[G2 General] :
how about the frequency range, it was dimished on earlier ones where it was fixed
[G2 General] marinanana:
Sounds as good as stock 4.2.2
[G2 General] Sensamic:
Guys, bought a G2 yesterday.

Trying to replicate this issue but I hear nothing weird... Using headphones and sound is perfect...

Any other way to see this issue?

I've got D80220f-EUR-XX.
[G2 General] soulreaver1:
If you read few posts back you would know that the issue was present in earlier roms, not the one you're using (f). At least this is what other people reported. I'm going to check it this week.
[G2 General] mannequin:
can anybody confirm (or deny) if the latest D801 T-Mobile update (D80120E) fixes this issue?
[G2 General] soulreaver1:
I've just checked that the issue is still NOT fixed in the D80220f-EUR-XX. Hiss sound in the left phone is easly audible with low volume levels...But this is only the begining. There is something very wrong with the left channel in general; sound is distorted and the phone is useless as a player.

Going back to JB and never ever buy a LG product of any kind...
[G2 General] fallenwout:
This.

I haven't tried d80220f but like i said before. I don't think lg will fix this one or they would've done it already.

People who say they don't hear it are people who don't enjoy music the way we do. That is not a negative comment, they just listen differently.

Left channel is distorted! Bad LG.
[G2 General] d_Schizzo:
Hmm, you guys should try dorimanx kernel and some good headphones. Iam on latest cloudypro with dorimanx and cant hear any hiss with my teufel earbuds...;)
[G2 General] mannequin:
well, that sucks a ton. i guess we have to wait for "L" here (i doubt 4.4.4 will fix anything if we ever get it) since audio got some major overhaul in it. i still think we have Google to blame here and not LG though, since some other phones have similar audio problems.
[G2 General] soulreaver1:
Well Htc One M8 and Xperia Z2 both running kitkat don't have it...
[G2 General] ChaosLord88:
I don't know about you guys but since the last update with knock code I got the hissing fixed on my G2. Tested it with my Behringer headphones and honestly the sound was clear and without any hissing on the left like before when it was easily noticeable. Maybe you're right and the bug is still there but since I can't hear it no matter how much I concentrate, for me it's finally fixed. :D

Sent from my LG-D802
[G2 General] :
lets hope iys permanently fixed and doesnt resurface like in the past :)
[G2 General] wulsic:
Guys I don't know If lg doesn't fix it like some people are complaining about left channel then find some audio edit program like viper4android I think that also have something for channels in advanced mode.

I think it is fixed but for everyone things sounds different so edit it to your own nice frequency and hight
[G2 General] soulreaver1:
I can't belive that someone could not hear that awful distortion in the left channel... but it maybe headphone dependent.

To separate this distortion play some music with rhythmic bassline, then go to Settings --> Accessibility ---> in hearing section move the "balance" slider to the right. Now you should hear the distortion in its clear form in the left phone.
[G2 General] giorgosfil13:
I have the european version and untill now I haven't got the knock code update...
[G2 General] RicoCC:
i got the d802 european open model and i used to have that audio bug when i updated to kitkat a few months ago. it was extremely loud and made listening music with and without headphones impossible.

even tho i liked the stock rom i then went to cm11 and the bug was gone. i didn't look back for quite a while until yesterday when i decided to try stock again and see if they fixed anything. i read that people reported the bug being fixed with the knockcode update and others who claim to still have it even after the latest updates.

i fully went back to stock (in my case D80220D-EUR) and was surprised to hear an even better sound quality than i expected. the hissing is completely gone in my case. i tried different headphones etc. and i couldn't notice anything negative.

maybe the full whipe when going back to stock did something to fix it or it's simply fixed with the latest version that was available for me.

tl;dr

4.4 came out --> audio bug --> cm11 --> no audio bug --> tried stock (d82020d) a few months later --> no audio bug and very nice sound quality
[G2 General] Cienight:
Bull****.

80220f here and sound is perfectly clear. Get your facts straight before ****talking
[G2 General] soulreaver1:
Yeah, right might be clear for you...
[G2 General] Voje:
Are you serious? Calm down! If one thing is apparent, it is that this affects different phones differently, and that is depends on what headphones you use, and so on.

Never seen such rude behavior... I'm appalled..
[G2 General] Cienight:
Just saying that if people want to ***** about something, they are gonna do it anyway. He's blaming lg for his own incompetence
[G2 General] ephumuris:
Its because of older devices like the o2x. That's why people say it won't be updated. I remain optimistic.

For me the issue is present more at lower volume below 50 percent. Above that mark the music mostly drowns the sound out even though its still there. It is different levels of annoying with different headphones. I've tested 3. The noise isn't there when you first plug in but if you play a song and pause it, its very very obvious...it eventually stops but if you play the song again it starts.