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I remember reading a while back on some thread that Wolfson had a line on their earnings call sheet saying one of the US models of the GSII uses the Wolfson DAC.
I have always been a fan of the DAC on my Zune and Captivate. I sure hope this is the one that has the Wolfson and not the T-mob.
Has anyone figured if the DAC inside is a Wolfson or (shudder) Yamaha ?
thelastjedi said:
I remember reading a while back on some thread that Wolfson had a line on their earnings call sheet saying one of the US models of the GSII uses the Wolfson DAC.
I have always been a fan of the DAC on my Zune and Captivate. I sure hope this is the one that has the Wolfson and not the T-mob.
Has anyone figured if the DAC inside is a Wolfson or (shudder) Yamaha ?
Click to expand...
Click to collapse
I'll need to double-check tonight, but 90% certain it's Yamaha - we're almost identical hardware-wise to the international variant.
It's probably either the TMo or Sprint variant that have Wolfson. Probably TMo - the E4GTouch is pretty similar to our device other than the radios.
Entropy512 said:
I'll need to double-check tonight, but 90% certain it's Yamaha - we're almost identical hardware-wise to the international variant.
It's probably either the TMo or Sprint variant that have Wolfson. Probably TMo - the E4GTouch is pretty similar to our device other than the radios.
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Click to collapse
Hasn't the Sprint version already been confirmed to have the Yamaha ?
I thought of this question because of all the audio issues people are having after rooting and also because of a few reviews stating that the audio quality on this is awesome (one of them being GSMArena). Fingers crossed for a Wolfson, though don't have much hope
Well it might be a Yamaha chipset that's different (improved) from the one that gave Yamaha a bad name...
Yamaha is not that bad. Android 2.3.5 in International SGS2 improves the sound tremendously compares to 2.3.3 and 2.3.4. Sound quality is very close to my Cowon J3 now.
/sys/devices/platform/soc-audio/sound/card0 # cat id
cat id
C1YMU823 <--- same chip as the international version
sorry everyone... it's still yamaha
Samsung, Y U NO use high quality audio chip?
I mean c'mon if this is their flagship, why would they stay away from the wolfson....
halfnelson117 said:
Samsung, Y U NO use high quality audio chip?
I mean c'mon if this is their flagship, why would they stay away from the wolfson....
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Click to collapse
Voodoo Sound will surely make things better.
I've only played with mine for an hour or so, but I've listened to some of my "test" tracks with my Etymotic ER6is, Audio Technica M50s, and Portapros and it sounds decent enough to me, definitely better than the Nexus One it's replacing. No perceivable noise floor to speak of, no treble rolloff in anything I listened to, and it seems to be able to drive bass well (a problem with the N1 IMHO)
Wish I still had access to audio test equipment...
pokey9000 said:
I've only played with mine for an hour or so, but I've listened to some of my "test" tracks with my Etymotic ER6is, Audio Technica M50s, and Portapros and it sounds decent enough to me, definitely better than the Nexus One it's replacing. No perceivable noise floor to speak of, no treble rolloff in anything I listened to, and it seems to be able to drive bass well (a problem with the N1 IMHO)
Wish I still had access to audio test equipment...
Click to expand...
Click to collapse
Does it suffer from the same static hissing and also some processor sounds when UI is being manipulated ? I remember reading all sorts of crappy noises made by this DAC when headphones are plugged in and the phone is being used in Supercurio's test on Anandtech. Still true ?
Milkshakes00 said:
Voodoo Sound will surely make things better.
Click to expand...
Click to collapse
VS is only for Wolfson headphone amps. There's a reason it doesn't exist for the I9100 as far as I know - if it did, it would be a complete rewrite.
thelastjedi said:
Does it suffer from the same static hissing and also some processor sounds when UI is being manipulated ? I remember reading all sorts of crappy noises made by this DAC when headphones are plugged in and the phone is being used in Supercurio's test on Anandtech. Still true ?
Click to expand...
Click to collapse
Yes, but I think turning off UI sounds (the little pop when you click things) will prevent some crappy noises when using the UI while listening to headphones. I'm guessing the chip isn't very good at playing multiple audio streams at once. Also, the drivers were updated in 2.3.5 for the i9100 and audio is supposedly much improved.
Sent from my SAMSUNG-SGH-I777 using xda premium
gtg465x said:
Yes, but I think turning off UI sounds (the little pop when you click things) will prevent some crappy noises when using the UI while listening to headphones. I'm guessing the chip isn't very good at playing multiple audio streams at once. Also, the divers were updated in 2.3.5 for the i9100 and audio supposedly much improved.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
I hope against hopes, this phone gets a quick 2.3.5 update to enable the FM radio, give us Google wallet for NFC and improve the DAC. I might put the NFC to good use with banks now charging for debit transactions. Come on AT&T shows us that your are not an Android enemy after all.
Overall, audio quality seemed more than acceptable in my preliminary listening tests. It isn't as good as audio on the Thrill and original Galaxy S variants like the Infuse and Captivate, but it sounded on par or better than some other Android phones like the Inspire and Aria. If you have cheap headphones you likely won't notice a difference between any of these phones anyways.
Sent from my SAMSUNG-SGH-I777 using xda premium
gtg465x said:
Overall, audio quality seemed more than acceptable in my preliminary listening tests. It isn't as good as audio on the Thrill and original Galaxy S variants like the Infuse and Captivate, but it sounded on par or better than some other Android phones like the Inspire and Aria. If you have cheap headphones you likely won't notice a difference between any of these phones anyways.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
i will be listening to it mostly on a medium range Sony in-ear or Harman-Kardon 2.1 at home. So I don't think it will sound much different, but it is sad to know the Wolfson DAC is gone.
thelastjedi said:
I hope against hopes, this phone gets a quick 2.3.5 update to enable the FM radio, give us Google wallet for NFC and improve the DAC. I might put the NFC to good use with banks now charging for debit transactions. Come on AT&T shows us that your are not an Android enemy after all.
Click to expand...
Click to collapse
If 2.3.5 had a kernel update for the DAC with no userland component, we might have gotten those fixes in our kernel.
Entropy512 said:
If 2.3.5 had a kernel update for the DAC with no userland component, we might have gotten those fixes in our kernel.
Click to expand...
Click to collapse
And is there a way for us to verify if that update was done to the i777 kernel ?
gtg465x said:
Overall, audio quality seemed more than acceptable in my preliminary listening tests. It isn't as good as audio on the Thrill and original Galaxy S variants like the Infuse and Captivate, but it sounded on par or better than some other Android phones like the Inspire and Aria. If you have cheap headphones you likely won't notice a difference between any of these phones anyways.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
I believe the audio issues only apply to headphone usage. I read a few threads in the Optimus 3D forum regarding audio quality. There were some links to a review of the O3D that showed the SGS II having a bit of an edge (from a measured standpoint) over it. The Thrill is essentially the same so I would assume that the sound quality of the SGS II is slightly better than the Thrill. Again, this was compared in a measured test environment. The issue with the O3D and Thrill was due to stereo crosstalk. The O3D and SGSII were both given an average rating though.
Personally, I rarely use headphones and more often use the headphone jack as an audio out to an amplified system. Really not an issue for me. It is kind of interesting that the original Galaxy S has a better audio chip though.
thelastjedi said:
Does it suffer from the same static hissing and also some processor sounds when UI is being manipulated ? I remember reading all sorts of crappy noises made by this DAC when headphones are plugged in and the phone is being used in Supercurio's test on Anandtech. Still true ?
Click to expand...
Click to collapse
My ER6is are really sensitive and isolate really well, so if there's a noise floor to be heard I'd hear it. And on a second try, in a quiet room with these headphones and paying very careful attention I can hear a tiny bit of noise after a system sound or music is playing up until about 3 seconds later when the amp powers off. But I REALLY have to be listening for it.
I did not hear any CPU activity or radio related interference at all, but I've been on HSDPA constantly so far. Maybe EDGE/GSM is worse. Induced noise is usually not the fault of the chip itself, but a result of bad PCB design, bad power supply filtering, and shielding. Maybe Samsung fixed this in the 777.
The Anandtech test does show some shortcomings, but think about it this way: for 16 bit audio, the difference between the quietest sound that can be represented and complete silence is 96dB, or 1 bit of audio. The noise floor according to the tests is 95.1dB. You will never notice this when listening to music.
The distortion and crosstalk, particularly the intermodulation from that article doesn't look so hot, but it isn't bad really. It's entirely possible that this can be fixed with tweaks to chip settings once we get a datasheet or some register setting info.
pokey9000 said:
My ER6is are really sensitive and isolate really well, so if there's a noise floor to be heard I'd hear it. And on a second try, in a quiet room with these headphones and paying very careful attention I can hear a tiny bit of noise after a system sound or music is playing up until about 3 seconds later when the amp powers off. But I REALLY have to be listening for it.
I did not hear any CPU activity or radio related interference at all, but I've been on HSDPA constantly so far. Maybe EDGE/GSM is worse. Induced noise is usually not the fault of the chip itself, but a result of bad PCB design, bad power supply filtering, and shielding. Maybe Samsung fixed this in the 777.
The Anandtech test does show some shortcomings, but think about it this way: for 16 bit audio, the difference between the quietest sound that can be represented and complete silence is 96dB, or 1 bit of audio. The noise floor according to the tests is 95.1dB. You will never notice this when listening to music.
The distortion and crosstalk, particularly the intermodulation from that article doesn't look so hot, but it isn't bad really. It's entirely possible that this can be fixed with tweaks to chip settings once we get a datasheet or some register setting info.
Click to expand...
Click to collapse
Awesome input. Thank you. So far from what we have heard i think its safe to assume that this is a Yamaha DAC, but with some changes to shielding/PCB design or updated kernel or probably even both. If Anandtech does a detailed analysis on all 3 US variants, it would be awesome, but chances are they won't. Lets hope one of you guys take up the audio on this beast as a challenge and give us some great tweaks.
Hi all! I have been reading alot of post about Streak's low quality sound output, and I'am experiencing it too, when I plug in my head phones there is no hissing sound, but when I click play or receive a call hissing sound starts and does not end till audio output end.
There is alot of post from people that have the same issue, I will Quote them below. I'm posting this because everyone that has posted this issue has been "overrun" with other people posts that they do not have that background noise.
I just want to expand on this problem, could it be Android version, or perhaps different hardware? Any suggestion is welcome.
----------------------------------------------
gadaga said:
Hi,
Personally I find that whatever I use as earphones, I have a hard time accepting the noise level on the streak. When playing music at a medium volume, the noise is really very very present.
I suppose there is no work around is there? Doesn't this bother you for serious listening?
Click to expand...
Click to collapse
donalgodon said:
The sound quality is absolutely abhorrent in comparison to the Galaxy SII or any other smartphone I've ever used, including the HD2, Vibrant, several Nokia devices, etc.
There is a constant and definitely audible signal noise in the Streak that really bugged me. As a recording engineer, I can definitely hear the difference between the audio systems on the two devices. When the playback system kicks in, you can literally hear the hiss in the background. When the playback stops, the hiss vanishes. Upon further investigation, it seems that this is a known issue that found its way into several reviews. If I hadn't heard it for myself, I'd have not believed how terrible it actually sounded, and frankly, it's SO bad that I find it inexcusable on such a high-end device.
I sold my iPod and bought a larger MicroSD to use my phone as my main portable media device, and the Streak really let me down.
Click to expand...
Click to collapse
hp79 said:
If it's boosted, wouldn't that cause more noise since noise will also be boosted?
I'm having the same problem. Hissing noise in the background. I also got mine couple days ago. I bought it when it was $200 unlocked from dell.
I'm on stock 347. I should have tested the earphone when I had 351.
It makes the hissing noise in music, internet radio, wherever sound is being played. It has a constant level of hiss noise even if I raise the music volume or reduce it to minimum.
Click to expand...
Click to collapse
I believe it's the hardware. Doesn't matter what OS level you're running (I've experienced it on 2.1, 2.2, 2.3)
I've actually found it to be more tolerable on the Dell oem headphones when compared to my nice headphones (etymotic research er6i)
cyapalmpos said:
I believe it's the hardware. Doesn't matter what OS level you're running (I've experienced it on 2.1, 2.2, 2.3)
I've actually found it to be more tolerable on the Dell oem headphones when compared to my nice headphones (etymotic research er6i)
Click to expand...
Click to collapse
I hope its OS because some don't have this issue, maybe MIUI 2.3.2 Rom wont have this problem (when they fix the problem with headphones not being recognized).
And yes, on Dell oem headphones it is less noticable but compared to 50-100$ better headphones, Dell's are low quality, although they are one of the best in box headphones that comes with device.
I have some basic knowledge in Java and C. Could anyone point in the right direction so I can try to edit/tweak some setting of audio output. Any info would be appreciated.
It's also noticible on the S7 and venue. At least on the S7 you can only really notice it in a room that's completely silent, but at least for that i'm talking about the external speakers.
All I can say is that it's pretty much not noticible for me as long as it's not silence/very low volume music. At least for me it's very easy to drown out the hiss by raising the volume as it does not/minimally scales with the volume.
Keep in mind that the speakers/headset jack simply do not recieve power when not in use, the hiss on them could be part of the inherent design of it. It might be noise after the DAC as it doesnt scale anywhere near 1:1 with the audio. But I'm just blindly guessing
TheManii said:
It's also noticible on the S7 and venue. At least on the S7 you can only really notice it in a room that's completely silent, but at least for that i'm talking about the external speakers.
All I can say is that it's pretty much not noticible for me as long as it's not silence/very low volume music. At least for me it's very easy to drown out the hiss by raising the volume as it does not/minimally scales with the volume.
Keep in mind that the speakers/headset jack simply do not recieve power when not in use, the hiss on them could be part of the inherent design of it. It might be noise after the DAC as it doesnt scale anywhere near 1:1 with the audio. But I'm just blindly guessing
Click to expand...
Click to collapse
Did they came up with any fix for S7 and Venue?
In DSC rom update there is a line that says:
I'm using MIUI so can someone confirm if this changes anything?
_n0p_ said:
v1.0
[*]DSC Gain tool. Controls audio driver parameters.
Click to expand...
Click to collapse
The V has pretty much no perceptable hiss, and I believe the V and S5 share the same audio drivers (dont quote me on this), it might merely be a hardware issue on the S5.
I cant really say much about the S7's headset out, as it's rather unwieldly to use that way.
Also I'm very sure that it ISNT dependant on volume, like previously mentioned unless your current headset is loud to begin with, just turn up the volume and it drowns out nicely.
But yes it will be noticable on the quiet parts of music or during track changes.
tl;dr: turn up volume, V's got a cleaner output
Equipment tested on:
S5: CM7.2
S7: SD7-r9 (514-xx)
V: SD4-250 (408)
headset: iphone in ear headphones
I think its just the poor SNR ratio of the streak, its only -79db or something, its very poor.
Scroll down in this Dell Streak review to see RMAA audio benchmark measurements.
_n0p_ said:
soul_train, 100% hardware issue.
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Click to collapse
Makes me sad
Hi all
I just got my international GS3 from O2 as a swap for an HTC One X. The One X seemed to have a fault where audio on the left channel was slightly louder than the right. After multiple replacement units all having the same problem, and even display models in shops and 2 friends One X's all showing the same bias, I realised it's just a fault with the phone.
I'm quite amazed to find the GS3 has the exact same problem. Before anyone asks, I have done every sort of test to rule out deficiencies in my hearing, the headphones and the source files, using multiple players, devices, headphones, files and even people's ears. The bias is inherent to the device.
I cannot work out why the GS3 and One X both have this problem, yet my ancient Sony W810i still has perfect stereo balance (OK, the sound is not very rich, but at least it's even). Incidentally, I tried mono mode on the GS3 and the problem persists.
Has anyone experienced this? The imbalance is only slight, but it's most noticable in podcasts, where the voices speaking seem to be in the left side of your head. This is especially noticable on larger headphones, and with bassier voices.
I'm open to rooting the phone if there's a solution that way around (probably will root soon anyway to get CM), perhaps a line of code somewhere where values can be adjusted. Relying on balance controls in individual media players (like PowerAmp) is not a solution, I want a global fix for all applications that use sound (I live on BeyondPod, video players, TuneIn Radio, Spotify and FM Radio).
Thank in advance for any tips, or even just careful testing of your own GS3s to see how widespread the problem is.
Thanks,
Simon
Just wanted to know if anyone else noticed faint buzzing/scratching/hissing noises coming out of their headphone jack...
(and yes I have tested several headphones/earbuds and tested with my MDRv6's all with the same results. Its definitely the phone not the headphones)
When I insert my headphones there is a quick beeping sound that plays for a second or so then goes quiet.
When music is playing, especially soft music (a particular song was Instant Crush; Daft Punk) there is a hiss in the background, specifically when certain tones play.
It was terribly noticeable right at the beginning of a few songs, especially the one I listed above.
I also have button sound effects enabled. So When I press one of the soft UI buttons it makes a tick noise. However for about 5 seconds after the tick there is a long hiss then silence until I press another button.
The volume of the hissing/scratching noises is directly related to the actual volume of the device and the note playing.
Im on stock build 11c w/root, and I havent found a lot of info about this problem.
Just wondering if anyone has noticed this, or if this is a known issue?
If your phone is warranteed, I would bring it in
The G3 boasts an AMPLIFIED 1 watt sound speaker, which means there is a powered sound processor.. Unless the jack needs to be cleaned, I would lean toward thinking there is a defect in your phones jack, or sound assembly. I think its more than likely a defective jack, especially if there are no sounds like you are describing when headphones are not in use
Yeah the phone is brand new. I think I'm going to RMA....
Sent from my VS985 4G using XDA Free mobile app
I've noticed it. Seems to be worse when charging.
Verizon remotely detected root, warranty voided.
Posted about it here.
http://forum.xda-developers.com/showthread.php?p=57355721
Word of warning before calling Verizon
Sent from my VS985 4G using XDA Free mobile app
nuke235 said:
Just wanted to know if anyone else noticed faint buzzing/scratching/hissing noises coming out of their headphone jack...
(and yes I have tested several headphones/earbuds and tested with my MDRv6's all with the same results. Its definitely the phone not the headphones)
When I insert my headphones there is a quick beeping sound that plays for a second or so then goes quiet.
When music is playing, especially soft music (a particular song was Instant Crush; Daft Punk) there is a hiss in the background, specifically when certain tones play.
It was terribly noticeable right at the beginning of a few songs, especially the one I listed above.
I also have button sound effects enabled. So When I press one of the soft UI buttons it makes a tick noise. However for about 5 seconds after the tick there is a long hiss then silence until I press another button.
The volume of the hissing/scratching noises is directly related to the actual volume of the device and the note playing.
Im on stock build 11c w/root, and I havent found a lot of info about this problem.
Just wondering if anyone has noticed this, or if this is a known issue?
Click to expand...
Click to collapse
Just got my G3 a week ago and didnt use headphones until I read your post, I tested many different songs with different players, stock player, google player, Iheart radio, pandora, etc, headphone sound is crystal clear on mine, I dont get any beeps either like you described, I did notice you need to make sure the jack is pushed in good and tight, I put it in and thought it was all the way in and sound was crappy, pushed a bit harder and it clicked in good and sound was great, do you have a case that may be preventing the jack from being pushed in all the way, I had a phone in the past that this happened to me with, had to cut away some rubber on the jack to make it fit snug, if none of those are the issue, I would look into a warranty claim. I am using the beats audio earbuds that came with my HTC M7 I had before this phone.
kchinth said:
I've noticed it. Seems to be worse when charging.
Click to expand...
Click to collapse
That could be the issue. I know on the 2012 Nexus 7, it's really bad. It's supposedly due to the microUSB port and the headphone jack sharing the same circuit, or some engineering thing like.
Wonder if it's the same or if they didn't shield the headphone jack very well and it's picking up interference from the microUSB port when charging?
I didn't want to leave this up in the air so I figured I would post an update.
I replaced my G3 through Verizon for a brand new unit. My first phone was of an earlier batch (came with the 10b update) the second one was of a later batch and had 11b pre-installed.
Both phones had the same issue. There is a hissing noise/distortion that comes from the headphone jack. Even when not playing music.
I noticed it on other phones too but not anywhere nearly as much. I understand that any audio source is going to have a little background interference but the G3 definitely has a more significant issue than others.
However it seems to be entirely dependant on what headphones you are using.
1st. I tested first with my Sony MDR-v6's which the problem is most noticeable on. Extreme hissing/background noise.
2nd. Then I used a pair of Audio Techina ATH-PRO500's and the problem was almost unnoticeable.
3rd. I also tried my Steel Series Siberia v2's and the problem was again almost completely gone.
4th. I also used my receiver at home. JVC 5.1 channel receiver with RCA speakers and a Kenwood sub, didn't notice the issue at all. However there where some occasional strange popping noises when no music was playing I didn't get on my GS3 or other MP3 player.
5th. Finally I tried the ear buds that came with my Galaxy S3 and the distortion was again totally noticeable with and without music playing.
This is most definitely an issue that totally depends on what headphones you are using not sure if it has to do with sensitivity or impedance (this is what most people think) however it is most definitely an issue. I saw a few threads saying that audio issues were a problem in Android 4.4.2 however LG/Verizon have yet to release a stock base on anything but.
I suppose I could flash AOSP 4.4.4 and see if the problem persists but I don't know if that would even be worth it.
2 phones and 4 headsets later this is starting to seem like either a software or a design issue.
However I have nothing but good to say about every other bit of this phone. Really besides the audio jack top notch all around.
Sent from my Stumped and Bumped Verizon LG G3
I might have found a workaround for this
I have tested 3 LG D855 and all of them have noise/static/high-freq leak from the processor out to the headphones. It might be a faulty design for the headphones amplification stage for headphones (when the headphones logo appears on the status bar). However, when using line level output (the jack appears on the status bar) the problem does not reproduce.
Therefore the workaround I've found is to trick the phone into line level output mode and then plug the headphones. To do this you need to plug in a 3.5mm jack extensor or a 2-to-1 3.5mm Y-adapter with no load, that's it, with nothing connected to it. At that moment, the phone will activate the line level output mode. Only after that you will connect the headphones, and you'll see there are no artifacts on the audio.
That being said, I'm not sure this will work with all kind of headphones as I have only tried with mines that are low-impedance ones, but on those it works perfectly. To be checked if the level of the signal in line mode is enough to drive other headphones.
In any case, it is a shame this happens with a high-end and expensive smartphone. I was hopping this will be fixed in a newer hardware revision but I got two replacements of mine and no luck. I have read somewhere this might be a flaw in Snapdragon 801, as it integrates completely the signal routings but isolates badly highfreq noise from processor stages, etc. etc. but I do not remember where I did read it unfortunately.
I hope this helps!
drondron said:
I have tested 3 LG D855 and all of them have noise/static/high-freq leak from the processor out to the headphones. It might be a faulty design for the headphones amplification stage for headphones (when the headphones logo appears on the status bar). However, when using line level output (the jack appears on the status bar) the problem does not reproduce.
Therefore the workaround I've found is to trick the phone into line level output mode and then plug the headphones. To do this you need to plug in a 3.5mm jack extensor or a 2-to-1 3.5mm Y-adapter with no load, that's it, with nothing connected to it. At that moment, the phone will activate the line level output mode. Only after that you will connect the headphones, and you'll see there are no artifacts on the audio.
That being said, I'm not sure this will work with all kind of headphones as I have only tried with mines that are low-impedance ones, but on those it works perfectly. To be checked if the level of the signal in line mode is enough to drive other headphones.
In any case, it is a shame this happens with a high-end and expensive smartphone. I was hopping this will be fixed in a newer hardware revision but I got two replacements of mine and no luck. I have read somewhere this might be a flaw in Snapdragon 801, as it integrates completely the signal routings but isolates badly highfreq noise from processor stages, etc. etc. but I do not remember where I did read it unfortunately.
I hope this helps!
Click to expand...
Click to collapse
Ive been having the same issue. I have a pair of Shure SE846 which are about 8ohms. I experience the poor audio, especially the noise in the left channel. I find that placing a call and then listening to music removes the left channel static but the sound is still kinda bad. Ill try your suggestion tonight and post back. Just wanted to let you know your not alone.
I despise my G3 because of this. Im looking to get a new phone unless I can fix this.
Nope, my sound is perfect on my high-end Sony over the ear phones. Crystal clear on pure stock G3 .
I haven't noticed any artifact issues on my phone when using headphones, however when I plug it into my vehicle and also plug in the charger that causes everything to go nuts. The USB interference causes a crazy amount of excess noise. I haven't ever actually tried listening to headphones while charging, so in the car is the only time I've ever noticed it. The same issue occurs when I plug in my Galaxy Tab Pro into the aux jack and charge it at the same time, so this is definitely not unique to the G3. I wish all phones had as good an amplifier as my HTC DNA does, I still use that thing for music because the sound is so good.
pitbull8265 said:
If your phone is warranteed, I would bring it in
The G3 boasts an AMPLIFIED 1 watt sound speaker, which means there is a powered sound processor.. Unless the jack needs to be cleaned, I would lean toward thinking there is a defect in your phones jack, or sound assembly. I think its more than likely a defective jack, especially if there are no sounds like you are describing when headphones are not in use
Click to expand...
Click to collapse
I'm having a different audio problem.
With headphones plugged in and listening to music using any player, the right side sound emits distortion/hissing noise at a certain frequencies. When I tested it with plugging a 3.5mm to 3.5mm to an external amp (JDS labs c5) the distortion/hissing noise is completely gone. So it's definitely not a faulty jack
The hissing is evident at the beginning of (first few seconds) Tina Area's Still Running and You set fire to my heart .
I'm testing it with sensitive iem (Westone Um3x).
So does this mean there is a problem with the internal amp of the g3 or more to do with the os bug that can be solved with a custom kernel or update.
Is this a common issue found on all g3s?
drondron said:
I have tested 3 LG D855 and all of them have noise/static/high-freq leak from the processor out to the headphones. It might be a faulty design for the headphones amplification stage for headphones (when the headphones logo appears on the status bar). However, when using line level output (the jack appears on the status bar) the problem does not reproduce.
Therefore the workaround I've found is to trick the phone into line level output mode and then plug the headphones. To do this you need to plug in a 3.5mm jack extensor or a 2-to-1 3.5mm Y-adapter with no load, that's it, with nothing connected to it. At that moment, the phone will activate the line level output mode. Only after that you will connect the headphones, and you'll see there are no artifacts on the audio.
That being said, I'm not sure this will work with all kind of headphones as I have only tried with mines that are low-impedance ones, but on those it works perfectly. To be checked if the level of the signal in line mode is enough to drive other headphones.
In any case, it is a shame this happens with a high-end and expensive smartphone. I was hopping this will be fixed in a newer hardware revision but I got two replacements of mine and no luck. I have read somewhere this might be a flaw in Snapdragon 801, as it integrates completely the signal routings but isolates badly highfreq noise from processor stages, etc. etc. but I do not remember where I did read it unfortunately.
I hope this helps!
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Click to collapse
Hi! This worked perfectly for me but for me instead of tricking the phone into line level output mode, I detaching one side of my headphones before plugging it into the headphone jack then reattached it afterwards. I'm using pair of sensitive iems (Westone um3x rc)
Everything is quit with no distortion, just how it should be!
One thing, is there an option within android or an app that can permanently enable line level mode ever time headphones are plugged in without having to trick it.
If so, I won't have to sent my phone for repair!
Also are there any disadvantages for using line level with headphones?
Fungus999 said:
Hi! This worked perfectly for me but for me instead of tricking the phone into line level output mode, I detaching one side of my headphones before plugging it into the headphone jack then reattached it afterwards. I'm using pair of sensitive iems (Westone um3x rc)
Everything is quit with no distortion, just how it should be!
One thing, is there an option within android or an app that can permanently enable line level mode ever time headphones are plugged in without having to trick it.
If so, I won't have to sent my phone for repair!
Also are there any disadvantages for using line level with headphones?
Click to expand...
Click to collapse
Using line out shouldn't make any difference on audio quality. It only disables the remote (buttons and microphone).
Would also really like a way to force the line-out mode. Btw, does this affect all G3s? Cause right now I'm not sure if it's worth the hassle of replacing it.
sulkie said:
Using line out shouldn't make any difference on audio quality. It only disables the remote (buttons and microphone).
Would also really like a way to force the line-out mode. Btw, does this affect all G3s? Cause right now I'm not sure if it's worth the hassle of replacing it.
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Click to collapse
I know but some how using line out causes the hissing from the right side to go away completely. Strange huh
Are you also having this problem?
I also don't want to return mine if it exists in all g3s and there's a easier work around.
Yea same thing. I have artifacts in the left channel except when I manage to force the phone to recognize the headphones as line-out. I did this with the adapter to test it and it's impractical if not impossible to use the same adapter all the time.
I'm gonna try doing this right this moment to see if it works: http://forum.xda-developers.com/lg-g3/help/hissing-noise-left-ear-playing-music-t2804065/page17
sulkie said:
Yea same thing. I have artifacts in the left channel except when I manage to force the phone to recognize the headphones as line-out. I did this with the adapter to test it and it's impractical if not impossible to use the same adapter all the time.
I'm gonna try doing this right this moment to see if it works: http://forum.xda-developers.com/lg-g3/help/hissing-noise-left-ear-playing-music-t2804065/page17
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Click to collapse
I don't use earphones with a volume remote or microphone so that's not a problem.
It could be more to do with the increase in output impedance but I might be wrong cos the volume level is identical to headphone out.
I'm also getting a lot of static background noise but it disappears after making and hanging up a call as mentioned in a thread.
But yeah a permanent fix by forcing it into line out or doing some changes in kernel would be much more convenient
Fungus999 said:
I don't use earphones with a volume remote or microphone so that's not a problem.
It could be more to do with the increase in output impedance but I might be wrong cos the volume level is identical to headphone out.
I'm also getting a lot of static background noise but it disappears after making and hanging up a call as mentioned in a thread.
But yeah a permanent fix by forcing it into line out or doing some changes in kernel would be much more convenient
Click to expand...
Click to collapse
Great news! I just tried the fix from that thread and it worked. Here's the post: http://forum.xda-developers.com/showpost.php?p=59601465&postcount=150
I'm using stock rom which had 3 mixer xml files and I edited 2 of them, mixer_paths.xml and mixer_paths_qcwcn.xml. Also, instead of changing the value to 0, I deleted the entire line as it was suggested later in the thread.
The artifacts/noise in the left channel are gone!
sulkie said:
Great news! I just tried the fix from that thread and it worked. Here's the post: http://forum.xda-developers.com/showpost.php?p=59601465&postcount=150
I'm using stock rom which had 3 mixer xml files and I edited 2 of them, mixer_paths.xml and mixer_paths_qcwcn.xml. Also, instead of changing the value to 0, I deleted the entire line as it was suggested later in the thread.
The artifacts/noise in the left channel are gone!
Click to expand...
Click to collapse
But mine is stock on stock Lollipop via official update and with the hiss coming from the right side.
Please excuses my ignorance but I know nothing about accessing and editing a ROM.
How do I get into the rom and into the file called system/etc"?
Hey, I'm not sure if anyone else is having this issue but when the dac isn't on, it's static during the music and when I'm in a call, there is static in calls on the left side. Does any one have a fix for this? I've had these headphones in my V20 and this is my first day with my V30+
lowridincrew said:
Hey, I'm not sure if anyone else is having this issue but when the dac isn't on, it's static during the music and when I'm in a call, there is static in calls on the left side. Does any one have a fix for this? I've had these headphones in my V20 and this is my first day with my V30+
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Click to collapse
Hi,
haha - and here I am and thought this phone was having hardware issues or something (does it ?) - perhaps it's just the headphones and they have an inherent flaw ?.
At least I'm getting the same weird behavior that at some points it plays fine but at others there's LOTs of (electric sounding) static on the left side.
It's actually never fully continuous for longer periods - it's more of a stuttery (multi-second) behavior for several seconds that this noise appears.
Also at first it was only via quad dac enabled - on AOSP Pie (internal LineageOS 16.0 build) it's existing no matter whether I play via Android Audio or Hi-Res Audio (USB Audio Player Pro).
And this exists on very low volume levels - there seems to be a connection that when the volume levels are raised (above 25/30% or so - I'm usually listening rather low but with this phone and hi-res - why not go higher ?)
it's way more salient and there also may be distortion involved:
An especially remarkable track in this regard is Thomas Bergersen's [from Two Steps From Hell] "Lost in Las Vegas" (around 08:30 or so towards the end, 10:14 long) towards the end - a rather electric part of the track and
when you raise the volume the output becomes rather distorted which might be connected to that "issue" and the left channel is also hissing/giving off static way more.
Perhaps audiophile folks and audio hardware experts have a better idea what this is hinting at ?
So:
not sure if it's an issue itself with the Xiaomi Hybrid Pro HD that they can't take that extra AMP (they are supposed to be low impedance and thus not require high output)
but somehow this behavior only occurs on the LG V30 - so perhaps there some kind of hardware issue ?
It seemed to have gotten better however from my impression with all those updates to the subsystems in the kernel - so it's perhaps just bad hardware design and the headphones are rather sensible
with their balanced armatures ?
Anyone else with balanced armature (BA) headphones observing a similar effect ?
I haven't had any trouble with my (dynamic driver) headphones. I wonder, have you messed around with forcing high impedance mode?
Murbert said:
I haven't had any trouble with my (dynamic driver) headphones. I wonder, have you messed around with forcing high impedance mode?
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Click to collapse
You mean high impedance adapters and such ?
Nope, only directly connecting the headphones.
And whereas before it only happened with the quad dac activated (which might provide more juice),
it now also seems to appear with the internal DAC used only (toggled via USB Audio Player Pro).
There might be a difference on how the internal and quad DAC interact or are active on recent Pie AOSP ROMs however ...
It still doesn't explain that weird behavior from the headphones themselves
Thx
I have tried it stock with no mods and it has static. Slide down the drop down and turn on the Dac and it goes away but only for music and system sounds. With calls it definitely makes noise all the time. I tried with a AOSP rom and it makes noise system wide because of the Dac. I did try my Phillips headphones and those work fine without the Dac on but I think it's a specific issue with these ear buds because I also have a 2nd pair and they also make the same noise.
lowridincrew said:
I have tried it stock with no mods and it has static. Slide down the drop down and turn on the Dac and it goes away but only for music and system sounds. With calls it definitely makes noise all the time. I tried with a AOSP rom and it makes noise system wide because of the Dac. I did try my Phillips headphones and those work fine without the Dac on but I think it's a specific issue with these ear buds because I also have a 2nd pair and they also make the same noise.
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Click to collapse
yeah, the Xiaomi Hybrid Pro HD are the only headphones so far that show this kind of "behavior" with the LG V30,
not sure what is up with that.
but I think it's a specific issue with these ear buds because I also have a 2nd pair and they also make the same noise.
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Click to collapse
very well could be, I wonder though where the reason for that might lie and if a fix of some sorts is possible - quite like those headphones and would like to use them on the go
zacharias.maladroit said:
yeah, the Xiaomi Hybrid Pro HD are the only headphones so far that show this kind of "behavior" with the LG V30,
not sure what is up with that.
very well could be, I wonder though where the reason for that might lie and if a fix of some sorts is possible - quite like those headphones and would like to use them on the go
Click to expand...
Click to collapse
Trying to figure that out myself. I love these headphones now I have to find replacements