[Q] USB audio using internal speaker eq. How to disable? - Nexus 7 Q&A, Help & Troubleshooting

Hey,
Got a 2012 n7 running in my car with USB rom. All works great, except it seems like it's cutting all bass beneath 200hz on the USB dac.
This doesn't seem to be an issue with headphone output (which I'd rather not use due to quality / mounting considerations)
The only conclusion I can come to is that it's using the same fixed Eq baked in as the internal speaker, which I presume drops out the bass to avoid destroying itself.
Is anyone aware of a way to disable this in any of the audio configuration files in /system/etc? Or am I Barking up the wrong tree..... I've had a poke around but can't find anything obvious.
If I use any type of eq, every band makes a difference except for the lower ones, which leads me to believe it must be baked in somewhere.
Cheers for any help!

Related

Hissing/static noise everytime G1 plays sound. Both speaker and headset. Just me?

I have a noise problem, I don't think it's quite the same as previously posted noise problems.
I get a hissinh/static noise from the phones speaker (on the back) and from headphones. It is only happening while the phone plays sound (and some seconds later). Every time I up or down the sound with the volume keys, there are noise coming out of the speaker for some seconds. Please report if you have the same issue, especially eith headphones.
I could live with the speaker-noise, it's not that big a deal.. What's worse is it is in the headphones. I have a quite low impedance set of in-ear plugs from creative (I am able to hear the hard drive spinning up in my old mp3-player, but no constant noise) Crap. I want to use the phone for music listening. Question is: software or hardware related? Using JF 1.51 ADP for the record
I hope it is hardware related - I bought mine off ebay, allthoug brand new and everything, I don't know how I would go about getting it fixed/a new one with no receipt. Shipping it back and forth to England isn't really tempting either.
It's not just you, it's piss-poor rf isolation on the audio outputs. Listening with bluetooth doesn't solve the issue either as bluetooth has its own noise.
Yeah, I have yet to listen to a decent pair of BT headsets.
So this is a known problem, and it's definitely a HW issue? The fact that it's only there when sound is played, and is also there with a headset (where shielding around connectors is not and should not be a problem at ALL) made me hope this was softwar related. Argh, what to do then? The sound quality despite this seemed prety decent, although a headache today prevents me from really listening to music and say for sure. Shame.
*Pondering refund options.*
Any chance of isolating around the connector and fixing this, if it is "airborne" caused noise, or will the noice enter the equation before the connector (cabling, sound chip)?
I will try with a relatively high impedance headset (sennheiser 555) and see if it is better there. But can't take them on the bus anyway. But a couple of Ωs could always be added somewhere along the cable and might do some good. Have to have the sound at the lowest levels with the in-ears. Maybe a software fix to lower the volume output will help? Or won't it, if RF noise is the cause?
red: I will buy this item and hope it helps. And will look into lowering the volume output when using headphones as well. Should be possible (atleast it usually is with tweaks in WinMo.)
I have similar problem with HTC Magic: forum.xda-developers.com/showthread.php?t=633035
Here is one more post regarding HTC Jade: forum.xda-developers.com/showthread.php?t=463365

Headset jack doesn't fit well

Hi, does someone have the same experience when connecting a headset to the TF?
I have to adjust the plug very precisely, since it can be pushed further into the device. Otherwise I loose left or right channel.
Is it less than 3.5mm? Or is some of where the wire means the plug (usually chunk of plastic) cut off?
no, it's an almost brand new inear headset which came with my Xperia Neo phone. I assumed the problem being caused by a sloppy assembled connector. If it works fine for everybody else, then it must be an individual defect with my TF
yeah i have a cheap pair of sony headphones and they work fine. just the volume isnt the best....but i know that is a tf issue not a headphone issue.
Yes, volume is a horror. I expected better. Haven't tried volume+ yet, works fine on my android phone.
To be honest, I wouldn't necessarily attribute the volume to the TF101. I have a decent pair of headphones and the volume works fine. Also, I've never noticed anything about the plug being finnicky.
I wasn't complaining about the sound but about the max. volume level. It seems to be a little low on my device. It may comply to some EU laws - I assume.
Anyway since nobody else has issues with the headset connector, I have to check with my dealer.
i'm having a similar issue but not exactly the same.
i used to have a problem with the 3.5" jack only when i plugged it to my surround system- logitech x530. i supposed it was because the signal is being amplified. so when i touched the connection or rotated it at his place it made a lot of loud static noise. i've tried changing cables but the same.
so i've got the lab to replace my transformer's mother board or so, and it is still happening. in fact i've noticed a new problem, this time with just a simple earphones.
when i push the plug a little bit harder into the jack, the sound becomes a bit louder.
wierd stuff... and of course in general the max volume kind of sucks.
I've noticed a similar issue with several of my plug-in phones.... Some work great whilst others either have no sound or mono only.
To me it appears the connector on the TF is simply too picky.
I have a pair of meelectronic A151 armature iems as well as Vsonic GR07, and while i like my music loud, clear, and with a lot of instrument seperation, maxing volume is definitely not needed.
Quick fix would be to flash a Rom/kernel compatible with Supercurio's Voodoo control and install Voodoo. It will be louder and sound clearer.
http://forum.xda-developers.com/showthread.php?p=14914293
Long term fix would be to buy a better pair of iems/headphones. Armatures like the A151s I mentioned above for clarity, a good dynamic driver like Meelec CC51, Sunrise X-cape, if you're a basshead, or VSonic's GR07 if you want a nice combination of both.
I'm quite a bit of an audiophile and while it surely isn't THE best DAC out there, the Wolfson WM8903 is very very good.
Also, depending on what phones you're using, you may just need an external amp, especially if their impedance is rather high.
Edit: I realize I went more into the sound aspect, as it was also being discussed above, but all my iems fit my TF snug just like all my other devices.
Sent from my HTC Eva 4G using Tapatalk
If anything mine is too tight a fit, but works perfectly with any headset I've tried.

[Q] What Volume SHOULD the speakers achieve? whats the spec

Friends obviously a LOT of Nexus 7 owners have complained about sound issues, from obviously defective units to the simple issue of volume being inadequate for use
My question is what is "normal" on this device? anyone know a db / sound-pressure at radius specification?
other than obvious noise through a speaker, how does anyone know if their unit is "normal" ?
cognus said:
Friends obviously a LOT of Nexus 7 owners have complained about sound issues, from obviously defective units to the simple issue of volume being inadequate for use
My question is what is "normal" on this device? anyone know a db / sound-pressure at radius specification?
other than obvious noise through a speaker, how does anyone know if their unit is "normal" ?
Click to expand...
Click to collapse
My speaker is defective, and in need of going out for repair/replacement, but the volume seems like it will be fine for my needs once the rattle/vibration is fixed. It only happens at certain frequencies, so I can still get a solid sense of the output level.
Trying to determine the exact db at a specific distance isn't going to do you much good, because it will be based on either the loudest frequency, or 1khz. The 1khz rating is somewhat reasonable to use, but what if there's a massive spike there (and on small speakers, there generally is). Say it could hit 95-100db at 1khz, it still will likely only hit about 5db at 40hz. See where I'm going with this?
I don't know, I could grab my spl meter, and run a whole series of tests at 1 meter in a quasi-anechoic environment (though it's really cold outside here), if you're really that keen on finding out precise measurements of the frequency output over the 20-20 range. Seems a little overboard for a 7" tablet though. I would consider the volume more than adequate for listening to the news, or voip calls, but there isn't a tablet that exists where I would be happy with the sound of the speakers for music.
Of course, I'm kind of picky about these things.
From what I see in the boards, there are three types of view points on the output.
1. Plenty good for normal use.
2. Terribly low for music.
3. Flat out broken, so you can only turn it up half way (the second is my current situation).
Also, don't forget that the speaker is in the back, so you'll have to keep it turned around or bouncing straight off of a hard surface, to get the full output to your ears. Some cases may also significantly reduce the output as well.
more questions: if we presume/conclude "there is a volume problem even when the speakers are not defective", then two follow-on questions:
1. is it JUST speakers?
2. combo of lousy speakers and a problem with the DSP/firmware/software/etc.... ?
I think it is 2 but I'd love to hear a root cause on the whole issue.
with SOME music sources I can get through the speakers a little bit louder response, at FULL volume max'd - than I can with MX Player on a video with the Player set on Volume Boost [200%].
in the case of MX Player, its basically worthless through the speakers both from a dynamics standpoint [obvious...] and just volume unless you are in a stone-quiet area and are craning toward the device to hear.... and you have acutely good hearing.
Then, if one is unconcerned about warranty: anyone have suggestions on replacement speaker that perhaps would help?
cognus said:
more questions: if we presume/conclude "there is a volume problem even when the speakers are not defective", then two follow-on questions:
1. is it JUST speakers?
2. combo of lousy speakers and a problem with the DSP/firmware/software/etc.... ?
I think it is 2 but I'd love to hear a root cause on the whole issue.
with SOME music sources I can get through the speakers a little bit louder response, at FULL volume max'd - than I can with MX Player on a video with the Player set on Volume Boost [200%].
in the case of MX Player, its basically worthless through the speakers both from a dynamics standpoint [obvious...] and just volume unless you are in a stone-quiet area and are craning toward the device to hear.... and you have acutely good hearing.
Then, if one is unconcerned about warranty: anyone have suggestions on replacement speaker that perhaps would help?
Click to expand...
Click to collapse
#2
When I connect the Nexus 7 to my car stereo inline, via the headphone output, I get mixed results. I generally have to crank the car stereo way up, which can cause voltage induction through the 1/8" to RCA connector, if I have the Nexus charging simultaneously.
Now granted, induction of this sort is not something that is a Nexus only problem, and has more to do with the quality of cable shielding. If I move the USB charger so that it doesn't line up with the headphone output wire, the problem is reduced.
However, the issue is more that the headphone output is somewhat inconsistent, so that means that some audio will require me to turn the stereo to a level where the inductance is moot, and sometimes I will have to turn up the stereo to the point where charging and listening to audio through the car stereo is just brutal. Of course, you weren't asking specifically about car audio, but it leads to my theory.
Now, here in lies why I think it's you're "#2". If it were purely hardware, there shouldn't be that great of a difference from the headphone jack, assuming relatively similar reference volumes from the source. So software would seem to be at play here, as well as hardware.
As far as the speakers go, I don't think you'll be able to replace the internals. They're a very awkward shape, which probably doesn't help, and there is very little room in there.
Your best bet would be to find out if there is an external speaker option which can easily work for tablets. I listened to an Ipad 4 last night, and it wasn't good either. I think you have to consider the size of these things. A speaker the size of your pinky nail, can only be asked to do so much. Trying to cram one the size of your thumbnail in there, won't do much more, and just wouldn't fit.
now we're talking real issues. thank you.
yes, compared to any of my other android or pc or apple devices this one is uniquely odd
all as you have noted. inconsistent, output device matters, etc.
I admit I'm skewed by the ipad Mini - if you get a chance, sample that in terms of speaker performance. I have not access to Ipad 4 in my shop.
in my case, there is no distortion that I can observe/detect with my ears - clear enough, but there's not much substance there, oddly except for notifications which are crystal clear at full volume, if not particularly loud [my ancient droid optimus is louder - obnoxiously so which is why I keep it on vibe].
bladebarrier said:
#2
When I connect the Nexus 7 to my car stereo inline, via the headphone output, I get mixed results. I generally have to crank the car stereo way up, which can cause voltage induction through the 1/8" to RCA connector, if I have the Nexus charging simultaneously.
Now granted, induction of this sort is not something that is a Nexus only problem, and has more to do with the quality of cable shielding. If I move the USB charger so that it doesn't line up with the headphone output wire, the problem is reduced.
However, the issue is more that the headphone output is somewhat inconsistent, so that means that some audio will require me to turn the stereo to a level where the inductance is moot, and sometimes I will have to turn up the stereo to the point where charging and listening to audio through the car stereo is just brutal. Of course, you weren't asking specifically about car audio, but it leads to my theory.
Now, here in lies why I think it's you're "#2". If it were purely hardware, there shouldn't be that great of a difference from the headphone jack, assuming relatively similar reference volumes from the source. So software would seem to be at play here, as well as hardware.
As far as the speakers go, I don't think you'll be able to replace the internals. They're a very awkward shape, which probably doesn't help, and there is very little room in there.
Your best bet would be to find out if there is an external speaker option which can easily work for tablets. I listened to an Ipad 4 last night, and it wasn't good either. I think you have to consider the size of these things. A speaker the size of your pinky nail, can only be asked to do so much. Trying to cram one the size of your thumbnail in there, won't do much more, and just wouldn't fit.
Click to expand...
Click to collapse

Fundamental audio buzzing problem with a brand new LG G3...unacceptable!

Hi all,
So I recently bought a new LG G3 - after having screen problems with the Oppo Find 7 - had the Oppo fully refunded, so was on the hunt for a new phone.
Bought the LG G3 instead - great phone (apart from the stupid button placement)...but there's a fundamental flaw with it - just sharing this here, to hear if anyone else has been testing it the way I have done in the video:
(Essentially the audio has a buzzing noise to it, when using the phone - this happens when you amplify the source)
I don't find it acceptable for a 2014 flagship phone to be like this.
I'm on the fence now to root it and/or flash another ROM OR just return it for a full refund - anyone else have any experience with different ROMs (ie 5.0 ROMs)?
EDIT:
I'm returning the phone: http://forum.xda-developers.com/showpost.php?p=57514537&postcount=12
Some test results: http://forum.xda-developers.com/showpost.php?p=57514889&postcount=13
Cheers
That "beep beep" sound when connecting your audio jack appears to be unique to your device as I haven't seen any other G3 do that before.
Also, I stated in another thread about this issue, It only happens while the cpu is under load AND there is no audio.
Once the cpu load drops to idle the issue is gone.
Once there is audio playing the issue is gone too.
It's annoying while no audio is playing, But it's not gonna degrade your audio experience in any way what so ever when there is sound coming out of your phone.
Amb669 said:
That "beep beep" sound when connecting your audio jack appears to be unique to your device as I haven't seen any other G3 do that before.
Also, I stated in another thread about this issue, It only happens while the cpu is under load AND there is no audio.
Once the cpu load drops to idle the issue is gone.
Once there is audio playing the issue is gone too.
It's annoying while no audio is playing, But it's not gonna degrade your audio experience in any way what so ever when there is sound coming out of your phone.
Click to expand...
Click to collapse
Thanks for the input.
Well that's odd, I've gotten others saying the beep beep is normal, but the buzzing isn't lol.
Out of interest, do you have the same issue?
And it's also a matter of principle, rather than it also being a fundamental flaw in the design. No flagship phone should have such an issue.
Whilst music is playing it's not noticeable at the levels I play it at, but at low volumes, and whilst using the phone at the same time, I can hear the problem. I'll retest tomorrow to make sure.
Not because I'm looking it for it, but because something doesn't sound 'right'in my music.
If it's CPU causing it, then is it linked somewhat to the kernel (ramp up and down of the CPU) or is it due to the placement or 'communication' it has to do within the phone (hardware problem)?
Mine does the Beep beep thing when i plug in my phone to the sound system at my work. It's done it on every ROM i have tried. The hissing, i haven't heard for a while though.
To be honest though, it is completely unacceptable it's not been sorted though yet.
neo6776 said:
Mine does the Beep beep thing when i plug in my phone to the sound system at my work. It's done it on every ROM i have tried. The hissing, i haven't heard for a while though.
To be honest though, it is completely unacceptable it's not been sorted though yet.
Click to expand...
Click to collapse
Thanks for the input!
Hi !
I think the audio system is the only problem with this phone.
When hearphones are plugged and there's no sound, you can hear a weird sound (especially when you touch the screen).
I also have a problem when I listen to music, sometimes the music has a little lag, a little buzzing for less than a second, as if the phone didn't have the time to load the music. It sounds like an old used CD. It happens once every ten minutes approximately. I don't know if it comes from the fact that I listen to music from my SD card, which isn't a very good card (64Gb, 20$ on amazon). I should test it from internal storage to check that...
Anyway, I'm using ChupaChups ROM and the problem you're talking about is also present. But Chupa Chups is a stock-like ROM, so this isn't a surprise.
I'm planning on installing CyanogenMod to see the difference.
I'll report back here after that
Sideness said:
Hi !
I think the audio system is the only problem with this phone.
When hearphones are plugged and there's no sound, you can hear a weird sound (especially when you touch the screen).
I also have a problem when I listen to music, sometimes the music has a little lag, a little buzzing for less than a second, as if the phone didn't have the time to load the music. It sounds like an old used CD. It happens once every ten minutes approximately. I don't know if it comes from the fact that I listen to music from my SD card, which isn't a very good card (64Gb, 20$ on amazon). I should test it from internal storage to check that...
Anyway, I'm using ChupaChups ROM and the problem you're talking about is also present. But Chupa Chups is a stock-like ROM, so this isn't a surprise.
I'm planning on installing CyanogenMod to see the difference.
I'll report back here after that
Click to expand...
Click to collapse
Thank you!!
As for your issue - you tried disabling throttling from the secret menu?
I've done so - in order to avoid temp capping
TotallydubbedHD said:
Thank you!!
As for your issue - you tried disabling throttling from the secret menu?
I've done so - in order to avoid temp capping
Click to expand...
Click to collapse
What hidden menu ? Dev options ?
ChupaChups ROM includes a mod which allows the processor to have an higher temperature (I think the original limit is 65°, the mod is set to 75°). The mod is supposed to erase this kind of issue.
Sideness said:
What hidden menu ? Dev options ?
ChupaChups ROM includes a mod which allows the processor to have an higher temperature (I think the original limit is 65°, the mod is set to 75°). The mod is supposed to erase this kind of issue.
Click to expand...
Click to collapse
Well it's not much of a "mod" - just a setting that you enable/disable:
http://forums.androidcentral.com/lg...-mitigation-offa-option-tweaks-does-work.html
That's a link to what I did.
Essentially the reason I'm saying it for you - is the laggy nature of what you said - with my brief use of the G3, I noticed a little alg, until I disabled the temp and throttling
TotallydubbedHD said:
Well it's not much of a "mod" - just a setting that you enable/disable:
http://forums.androidcentral.com/lg...-mitigation-offa-option-tweaks-does-work.html
That's a link to what I did.
Essentially the reason I'm saying it for you - is the laggy nature of what you said - with my brief use of the G3, I noticed a little alg, until I disabled the temp and throttling
Click to expand...
Click to collapse
Okay, thanks for the info.
I just installed CyanogenMod 12 (The ROM looks very stable, but I only got it 20 minutes ago so...). The first thing I tested was the issue we're talking about here... It's also present on Cyanogen ! The problem does not come from the Stock ROM !
Sideness said:
Okay, thanks for the info.
I just installed CyanogenMod 12 (The ROM looks very stable, but I only got it 20 minutes ago so...). The first thing I tested was the issue we're talking about here... It's also present on Cyanogen ! The problem does not come from the Stock ROM !
Click to expand...
Click to collapse
Legend - seems hardware related (as initially thought)
Unless CM use the same stock kernel - highly doubt that though!
OK guys - went into O2 store in the UK - they had a G3 on display.
(It was plugged in) - I could hear a LOT of static noise on my earphones with the amp connected.
Then I unplugged it from the mains - the static went away.
I then did the same tests as before and boom - same issue.
It's 100% not my device only and is present in the international G3 version.
My LG G3 is being returned tomorrow. It's unacceptable.
Amb669 said:
That "beep beep" sound when connecting your audio jack appears to be unique to your device as I haven't seen any other G3 do that before.
Also, I stated in another thread about this issue, It only happens while the cpu is under load AND there is no audio.
Once the cpu load drops to idle the issue is gone.
Once there is audio playing the issue is gone too.
It's annoying while no audio is playing, But it's not gonna degrade your audio experience in any way what so ever when there is sound coming out of your phone.
Click to expand...
Click to collapse
OK so I did tests -
Without the micro USB cord connected:
Audio playing - 0% volume (thus you can't hear anything) - static noise, no HDD-esk noise
Audio playing - 1st notch (you can hear music faintly) - static noise, no HDD-esk noise
Audio not playing - HDD-esk noise
WITH the micro USB cord connected - charging:
Audio not playing - Louder static noise, minimal HDD-esk noise
Audio playing - 0% volume (thus you can't hear anything) - louder static noise, no HDD-esk noise
Audio playing - 1st notch (you can hear music faintly) - louder static noise, no HDD-esk noise
Hope this helps everyone looking at this thread
So, I have a set of Sennheiser HD 598, a pair of Monster DNA headphones and Sennheiser CX275S in-ear earphones (for Android smartphones).
When I connect the HD 598 and the Monster DNA to the phone directly. I get no noise.
But when I connect the CX275S, I get the noise.
Could it be something to do with the impedance/resistance of the headphones and/or cable that is being used?
However I am not using an amp. Do you get the noise without the amp? Have you tried a variety of headsets??
sirdj said:
So, I have a set of Sennheiser HD 598, a pair of Monster DNA headphones and Sennheiser CX275S in-ear earphones (for Android smartphones).
When I connect the HD 598 and the Monster DNA to the phone directly. I get no noise.
But when I connect the CX275S, I get the noise.
Could it be something to do with the impedance/resistance of the headphones and/or cable that is being used?
However I am not using an amp. Do you get the noise without the amp? Have you tried a variety of headsets??
Click to expand...
Click to collapse
Yes it can be the impedance - however this doesn't apply when I connect the amp -as it is picking up more than the source usually shows.
In other words - you CX earphones could be more sensitive (which I find surprising vs the HD 598) - but if you were to put an amp - I think all of them would show.
I've tested with a bunch of earphones and my headphones - all of which showed the same problem with the amp.
I know for sure now it's to do with the phone - now if some people would notice it or not with their given setup is another thing.
ie. their setup might not reveal the flaw (ie if I had never put the amp - I wouldn't have heard the problem).
Also - I've noticed a audible "click" / "lag" when music was changing. making me say: "Yup 100% this phone is being sent back"
Can't believe I'm back to my SGS3. over 3yrs old - no problems and trumps these flagship phones in terms of audio quality.
Just to add my part, the "beep beep" is normal when connecting headphones. I usually get a very quiet buzzing noise when I have the phone connected to a power source and have headphones in. I'll report back in a week, getting a warranty replacement so may be different
EDIT: Using a pair of Audio Technica CKS-77X in ear headphones
GuyInTheCorner said:
Just to add my part, the "beep beep" is normal when connecting headphones. I usually get a very quiet buzzing noise when I have the phone connected to a power source and have headphones in. I'll report back in a week, getting a warranty replacement so may be different
EDIT: Using a pair of Audio Technica CKS-77X in ear headphones
Click to expand...
Click to collapse
excellent thanks for letting me know - why are you getting a replacement? (this issue?)
I've already packaged mine ready for an amazon return.
I decided to pull out all the earphones and speakers that I have. And here are the results.
1. LG earphones that came with the phone - no noise
2. Old Samsung Galaxy S2 earphones - no noise
3. Old iRiver earphones - no noise
4. Sennheiser HD 239 headphones - no noise
5. Bose Soundlink speakers in aux mode using a cable - at the highest 2 levels of volume I can hear the noise.
So it may be an amplification issue.
I am not sure that LG would accept the product back here in Australia if I tried to return it as there is no noise with the supplied earphones and any problems with amps would probably be out of their warranty terms.
TotallydubbedHD said:
excellent thanks for letting me know - why are you getting a replacement? (this issue?)
I've already packaged mine ready for an amazon return.
Click to expand...
Click to collapse
Cracks on the top IR Blaster (the one used for Quick Remote not for the camera) and your bottom microphone. Its a know defect with the G3 and they'll replace the phone for free
sirdj said:
I decided to pull out all the earphones and speakers that I have. And here are the results.
1. LG earphones that came with the phone - no noise
2. Old Samsung Galaxy S2 earphones - no noise
3. Old iRiver earphones - no noise
4. Sennheiser HD 239 headphones - no noise
5. Bose Soundlink speakers in aux mode using a cable - at the highest 2 levels of volume I can hear the noise.
So it may be an amplification issue.
I am not sure that LG would accept the product back here in Australia if I tried to return it as there is no noise with the supplied earphones and any problems with amps would probably be out of their warranty terms.
Click to expand...
Click to collapse
Not an amp issue - I think I showed that by comparing multiple devices.
It's the fact the source doesn't like to be amplified - and when done so, shows these problems quite easily.
The source (LG G3 jack) doesn't seem to be isolated/shielded well - that's the issue. Therefore normally nothing happens, crank the source up a little and it fails miserably.
It's 100% down to LG here - I won't say it again, but I've returned the LG G3 now. I'm done with their crap implementation. How on earth they would have missed it is beyond me.
Reviewers also need to wake up when they do audio tests. Useless.
GuyInTheCorner said:
Cracks on the top IR Blaster (the one used for Quick Remote not for the camera) and your bottom microphone. Its a know defect with the G3 and they'll replace the phone for free
Click to expand...
Click to collapse
dam ok

[HELP PLS]Audio distortion over headphones

Hi,
I've just bought a pair of Sennheiser Momentum Headphones for the Galaxy series (M2 IEG) and i'm experiencing some very weird distortions.
Best description would be a compression effect, taking out all the base and highly accentuating highs and mids.
First thing i though was there's some handsfree sound option, like a voice preset, that gets activated if there's a 3 pin 3.5mm jack detected, but i can't find anything.
I've tried the following permutations:
- New headphones with PC soundcard and with older HTC One -> no issues (other than volume up/down, next track etc commands were mixed up on the One)
- S7 with another pair of headphones -> no issues
- switched on/off pretty much all audio settings on S7 (equializer, surround, upscaling, adaptive sound etc), factory reset -> no change.
What i did notice after a factory reset was that when i started the first track, it worked fine for a few seconds, then the sound got distorted as soon as i turned the volume up (timing might be a coincidence). This leads me to believe it's a software issue. Maybe i'm blind, but i can't find any more sound options to change.
Any help would be highly appreciated.
Thanks
This is strange. Never heard of this as a software issue with any device. The description of ur distortion almost sounds like when I dont put the headphone fully in the jack. Could a phone case maybe be preventing the jack from going fully in? Otherwise I'm at a loss.
I managed to fix it, but it's a weird one.
I cut a thin strip of scotch tape and isolated the bottom pin on the jack, so that the remote commands were blocked out. As i was expecting (since the remote commands are the only difference between these headphones and the other ones i tried), it worked just fine.
What i didn't expect was that after removing the isolation, it kept working fine. I am now several reboots and updates later and everything seems to be ok.
Maybe someone more tech savvy can figure out what it was, because i sure can't.

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