Develop Bugs

[Q] Problem with audio clipping on screen lock

So I've discovered a pretty nasty bug that seriously affects my listening pleasure.
I should start by saying that I am a recent Android convert, the GN beeing my first foray into the realm of Android devices.
Having used an iPhone for the past 3 years (and mostly for rocking out to my favourite music on my daily commute) I was initially really excited with the quality of the audio on the GN, even when using the stock iPhone earbuds. This issue however, has nothing to do with the earphones, it happens even when the phones are disconnected
I noticed however that my music had a tendency to start clipping (clicking horribly while playing HQ files in most supported formats). My first step was to download pretty much every decent player I could find - right now, I have WinAmp and PowerAmp installed.
I eventually narrowed the problem down to the lock screen, more specifically when the screen blacks out after being idle for nn minutes. s
o long story short, if I play my music with the phone unlocked it all sounds really good, as soon as I lock the screen (clicking the power button at top right to switch to black screen) the music starts clipping horribly at very irregular intervals.
I've asked a mate to try the same steps on is GN and he says he can't hear any difference, so wanted to put this to the community to see if anyone else has experienced anything similar. Does this sound like a return job?
Being an android noob, I have no idea of any methods of providing debug info, so any input is welcome.
Thanks
Sky

i think all android phones do this...... at least my desire did this as well. Thats if you mean a very slight break when the screen goes black ?

wilbur-force said:
i think all android phones do this...... at least my desire did this as well. Thats if you mean a very slight break when the screen goes black ?
Click to expand...
Click to collapse
I have not experienced this on my Nexus S and I listen to music a lot with my screen locked.

ruthlesset said:
I have not experienced this on my Nexus S and I listen to music a lot with my screen locked.
Click to expand...
Click to collapse
Its just one fraction of a second blip as the screen locks in my experience.....

NO, in my case it's constant, like every few seconds... sounds like a case for replacement imo

Skysurfer69 said:
NO, in my case it's constant, like every few seconds... sounds like a case for replacement imo
Click to expand...
Click to collapse
Ya that's not a usual problem. Sounds defective. What file types are the music?

Skysurfer69 said:
So I've discovered a pretty nasty bug that seriously affects my listening pleasure.
I should start by saying that I am a recent Android convert, the GN beeing my first foray into the realm of Android devices.
Having used an iPhone for the past 3 years (and mostly for rocking out to my favourite music on my daily commute) I was initially really excited with the quality of the audio on the GN, even when using the stock iPhone earbuds. This issue however, has nothing to do with the earphones, it happens even when the phones are disconnected
I noticed however that my music had a tendency to start clipping (clicking horribly while playing HQ files in most supported formats). My first step was to download pretty much every decent player I could find - right now, I have WinAmp and PowerAmp installed.
I eventually narrowed the problem down to the lock screen, more specifically when the screen blacks out after being idle for nn minutes. s
o long story short, if I play my music with the phone unlocked it all sounds really good, as soon as I lock the screen (clicking the power button at top right to switch to black screen) the music starts clipping horribly at very irregular intervals.
I've asked a mate to try the same steps on is GN and he says he can't hear any difference, so wanted to put this to the community to see if anyone else has experienced anything similar. Does this sound like a return job?
Being an android noob, I have no idea of any methods of providing debug info, so any input is welcome.
Thanks
Sky
Click to expand...
Click to collapse
when the screen is locked on any Android phone, the CPU is underclocked to save power.
what you're experiencing is audio buffer underruns due to the CPU slowing down. this is normal.
have you tried playing the music using the default music player? you shouldn't experience the problem using the default music player.

Try changing the encoding of your music. The phone is probably struggling to decode your current format in the underclocked state.
Sent from my Galaxy Nexus using XDA App

I know where you are coming from but I don't experience this issue on my GN.
Go to power amp. Settings, audio engine, advanced tweaks and set the buffer to huge. I don't think it will work as it seems to me its when your device goes into sleep. Like the CPU is being undervolted too much. If it happens on the stock music app (Google music) I would send it back as defective.
OR - Maybe Google don't want you to use ****ty iPhone headphones after all.
Sent from my Galaxy Nexus using xda premium

NatTheCat said:
I know where you are coming from but I don't experience this issue on my GN.
Go to power amp. Settings, audio engine, advanced tweaks and set the buffer to huge. I don't think it will work as it seems to me its when your device goes into sleep. Like the CPU is being undervolted too much. If it happens on the stock music app (Google music) I would send it back as defective.
OR - Maybe Google don't want you to use ****ty iPhone headphones after all.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
it is more likely going to be related to the third party apps he is using to listen to music, that don't know how to keep the CPU alive in a higher state while the screen is locked. I had the same problem on my Nexus S with Skype for a while, where I couldn't actually put the screen to sleep using the power button while in a call - the audio would buffer underrun like crazy. Skype eventually pushed an update and it fixed the problem.

oscillik said:
it is more likely going to be related to the third party apps he is using to listen to music, that don't know how to keep the CPU alive in a higher state while the screen is locked. I had the same problem on my Nexus S with Skype for a while, where I couldn't actually put the screen to sleep using the power button while in a call - the audio would buffer underrun like crazy. Skype eventually pushed an update and it fixed the problem.
Click to expand...
Click to collapse
I was thinking the same. My GS2 had the same issue with power amp. But the stock app was fine. Crazy android phones but we love ya.
Sent from my Galaxy Nexus using xda premium

oscillik said:
it is more likely going to be related to the third party apps he is using to listen to music, that don't know how to keep the CPU alive in a higher state while the screen is locked. I had the same problem on my Nexus S with Skype for a while, where I couldn't actually put the screen to sleep using the power button while in a call - the audio would buffer underrun like crazy. Skype eventually pushed an update and it fixed the problem.
Click to expand...
Click to collapse
Not related to the ****ty iPhone headphones (lol thanks for that Nat) or the 3rd party apps I'm afraid... the same issue happens when I use the built in speaker, the GN issued earphones, and also regardless of whether I use the default music app or poweramp/winamp.
Changing the encoding of my music is going to be an extensive task if I have to do this for my entire library (30K+ tunes) I'll be here til next year.

Skysurfer69 said:
Not related to the ****ty iPhone headphones (lol thanks for that Nat) or the 3rd party apps I'm afraid... the same issue happens when I use the built in speaker, the GN issued earphones, and also regardless of whether I use the default music app or poweramp/winamp.
Changing the encoding of my music is going to be an extensive task if I have to do this for my entire library (30K+ tunes) I'll be here til next year.
Click to expand...
Click to collapse
what format is your music in, what sample rate and bit depth is it?
ie: FLAC 24bit / 192KHz

not sure oscillik, a range of formats (mainly MP3, some AAC) and bitrates (nothing less than 192k and mostly 320k) again not sure of the samplerate either, would have to check my library which I have no access to for now as I'm on the road

Skysurfer69 said:
not sure oscillik, a range of formats (mainly MP3, some AAC) and bitrates (nothing less than 192k and mostly 320k) again not sure of the samplerate either, would have to check my library which I have no access to for now as I'm on the road
Click to expand...
Click to collapse
those formats and bit rates should be just fine. just to let you know, bitdepth and bit rate (emphasis on the space also) are completely different things. i think it's safe to assume that the sample rate for your music is likely to be 44.1KHz (which is standard).
you may have a faulty handset, I would demonstrate the problem to the store you bought it from and get a replacement handset.

I get the clipping too but only with Power amp and not the stock player.
Never had this on any phone before.
Might have to get rid! Anyone want to buy a GN 2 days old?

Spewy1 said:
I get the clipping too but only with Power amp and not the stock player.
Never had this on any phone before.
Might have to get rid! Anyone want to buy a GN 2 days old?
Click to expand...
Click to collapse
Yus.
10char

NatTheCat said:
OR - Maybe Google don't want you to use ****ty iPhone headphones after all.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
+1
10char.

@spewy check NatTheCats post about settings in power amp, they did the trick on my device and strangely enough I'm no longer having the problem in the default player either. Thanks to Oscillix and Nat for your help.
Sent from my Galaxy Nexus using XDA App

*Oscillik
Sent from my Galaxy Nexus using XDA App

[Q] Google music (v4.0.9) stutters when phone asleep

Hey guys,
Have searched a while, but found no solutions for this, so here goes.
Have stock Galaxy Nexus with ICS 4.0.1, build ITL41F, installed Google Music v4.0.9 (with online sync).
Music is synced with google's online music service (even though I'm in UK, worked-around US-only restriction), and plays nicely when the screen is on. Once I switch the screen off (press power button), one of two things happen:
- if sampling rate of a song is below 48,000 Hz -- everything continues as normal.
- if sampling rate is 48,000Hz and up -- every one/couple of seconds music stutters, and jerks. Feels like I'm listening to dusty ol' record!
The 48kHz part is my theory, compared a few mp3s that stutter and some that don't. This seems to happen irrespective of bps rate and other parameters (albeit haven't checked all).
Few people on the forum with similar symptoms (on other phones) suggested it has something to do with cpu throttle during sleep, and that by forcing it to higher frequencies during sleep this could be solved.
Installed setCPU (which required rooting) and forced phone to 1,200MHz in sleep as a trial, and the songs still were stuttering.
Anyone with a similar experience?
Prime suspect would be google_music.apk which is in beta i believe, and... well, i guess then I'm out. What do you guys think? Any idea what might be causing this?
This is my first android phone, so I'm not sure even how I'd go about submitting a bug, if that's indeed the beta version of music at fault here. Any pointers?
Ta,
Dan

omgrtm said:
Hey guys,
Have searched a while, but found no solutions for this, so here goes.
Have stock Galaxy Nexus with ICS 4.0.1, build ITL41F, installed Google Music v4.0.9 (with online sync).
Music is synced with google's online music service (even though I'm in UK, worked-around US-only restriction), and plays nicely when the screen is on. Once I switch the screen off (press power button), one of two things happen:
- if sampling rate of a song is below 48,000 Hz -- everything continues as normal.
- if sampling rate is 48,000Hz and up -- every one/couple of seconds music stutters, and jerks. Feels like I'm listening to dusty ol' record!
The 48kHz part is my theory, compared a few mp3s that stutter and some that don't. This seems to happen irrespective of bps rate and other parameters (albeit haven't checked all).
Few people on the forum with similar symptoms (on other phones) suggested it has something to do with cpu throttle during sleep, and that by forcing it to higher frequencies during sleep this could be solved.
Installed setCPU (which required rooting) and forced phone to 1,200MHz in sleep as a trial, and the songs still were stuttering.
Anyone with a similar experience?
Prime suspect would be google_music.apk which is in beta i believe, and... well, i guess then I'm out. What do you guys think? Any idea what might be causing this?
This is my first android phone, so I'm not sure even how I'd go about submitting a bug, if that's indeed the beta version of music at fault here. Any pointers?
Ta,
Dan
Click to expand...
Click to collapse
That, is weird - because I am facing this with Winamp so I've switched to Google Music to play my music.
Does anyone else face something similar?

Can you do me a favor and play something you know that stutters, and then try it over a bluetooth connection.
I'm curious if this is also related to the static I get when the screen is off and output is analog outputs - digital (bluetooth) works fine.

same here with poweramp... switched to googlemusic... now i have only stutters over the phone speaker..

Same thing happen to me with google music and pandora. Thought it was the connection.
Sent from my Galaxy Nexus using xda premium

I get the same using the Music app (have WinAmp but doesn't seem to integrate with the lockscreen so don't use it) as soon as the screen goes off (either timeout or manual) you can hear the music slow down and start to stutter, tap the power button, screen comes on and music goes back to normal.
Have noticed it's not all songs, but have't looked into the differences between those that do and those that don't.

Are these locally stored songs that this is happening on? So far so good here but I have been streaming from the Google Music cloud.. I wonder if the CPU is struggling during the underclocked sleep condition with local files that are high bitrate...

Mine are local files, not tried from another source.

I've used both, streaming from Google cloud, and when songs are available offline in the music app -- still stuttering. Haven't tried any other method though.
As for trying to stream over Bluetooth, haven't got any speakers/earphones that could receive the stream at home. Going to try my luck with a local pcworld, if they let me.

I haven't had any problems with Google Music stuttering while the screen is off, but I have had it crash frequently while listening to music and multitasking. I experienced a similar problem with Rhapsody as well.
http://forum.xda-developers.com/showthread.php?t=1379600

Pyrotechnic said:
I get the same using the Music app (have WinAmp but doesn't seem to integrate with the lockscreen so don't use it) as soon as the screen goes off (either timeout or manual) you can hear the music slow down and start to stutter, tap the power button, screen comes on and music goes back to normal.
Have noticed it's not all songs, but have't looked into the differences between those that do and those that don't.
Click to expand...
Click to collapse
totally true! thought my phone was a lemon at first.luckily i didnt return it.

yep having the same exact issue. on speaker its just fine. when i plug in headphones or aux to car stereo and screen goes off it stutters / skips or whatever you want to call it.
Turn the screen on and its fine. However doesnt happen to all music. This was streaming from google music for me.

I'm pretty positive you guys have same exact problem as many other people. So far no one has take my suggestion of playing those same songs that stutter, and play them over bluetooth. I bet you don't get any more stutters. I think it has to do with analog outputs vs digital. To output analog, the phone has to use the DAC (digital to analog converter). When it outputs over bluetooth, there is no conversion, and the music is in digital form and transmitted in digital form
If someone can try this I would appreciate it. And you'd be helping everyone find a common denominator in this problem.
Also be sure to star this bug on google code http://code.google.com/p/android/issues/detail?id=22444#c6

Can someone post an mp3 this is happening to them with? I have a ton of them and I have not seen this problem yet.
Sent from my Galaxy Nexus using Tapatalk

[hfm] said:
Can someone post an mp3 this is happening to them with? I have a ton of them and I have not seen this problem yet.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Didn't I PM you a link the other day? I thought it was to you. I didn't click the box to save it to my sent box so I can't just look it up :[

Circling back. I recreated the problem with luxferro's 48KHz mp3. Seems whatever happens on this phone to play mp3 with the screen off cannot handle that sample rate. Any 44.1KHz mp3 works fine.
Sent from my Galaxy Nexus using Tapatalk

There was another thread like this. The current workaround is to enable the Equalizer for Google Music. You don't have to actually use it (leave it on default) but this solves the problem.
Sent from my Galaxy Nexus using XDA App

I guess with the eq on its forcing the CPU to get involved even when in low power mode. Unfortunately I believe that was causing other issues with crashing. Since I don't use 48KHz mp3 I'll leave it off.
Sent from my Galaxy Nexus using Tapatalk

For poweramp try settings... Audio engine.. Advanced tweets and change the audio buffer size.
Sent from my Galaxy Nexus using xda premium

Having the EQ turned on seems to work, just set it to flat and turned the 3d effect down. Guess it'll use less extra battery than using a 'keep awake' app like I was doing.

Music Stops playing randomly

Does anyone have this problem? I'm on the latest version of AOKP with Franco Kernal...Everytime I listen to music, it will randomly stop and I would have to press play again. This happens at random times, (seconds, minutes, hours). I'm using Google Music (Play Music). I have tried PowerAMP and other players, but they seem too all do it.
It's kind of bugging me

ogxjason15 said:
Does anyone have this problem? I'm on the latest version of AOKP with Franco Kernal...Everytime I listen to music, it will randomly stop and I would have to press play again. This happens at random times, (seconds, minutes, hours). I'm using Google Music (Play Music). I have tried PowerAMP and other players, but they seem too all do it.
It's kind of bugging me
Click to expand...
Click to collapse
It could be a bug with Franco's sound hacks he implements in his kernels. Perhaps try using a different kernel?

anton2009 said:
It could be a bug with Franco's sound hacks he implements in his kernels. Perhaps try using a different kernel?
Click to expand...
Click to collapse
hmmm...can anyone else confirm this that's also using Franco's Kernal....

I get this on stock. I thought it was related to another piece of software (pocketcasts) that I installed about the same time the problems started. Seem that the first song is played, then it pauses or stops.

Could be a buggy headphone connector (in the phone), where it send a faulty signal telling the system that you have unplugged the headphones. Does it only happen while using headphones?
My connector does that as well, but opposite. When not using headpones it sometimes signals that something has been plugged in, and all audio is routed to the non-existing headphones.

this bug definitively occurs on francoKernel!
Try flashing another kernel (Popcorn for example) and the bug is gone.
Seems to have something to do with the sound limit. If it's too loud it stops automatically. Try reducing the volume to 60% with the hard buttons and you'll see that it stops acting like that.

It's not a Franco's kernel only problem. I have the same issue on Stock 4.0.2 (GSM, unlocked, unrooted).
It is not the headphone connector that is buggy either since i'm experiencing this with bluetooth headset as well (A2DP headset).
The music app is not crashing either since it doesn't require a full "load" when i select the app. Press play again and all is good until next time.

It happens to me on stock as well. With both the music and listen apps. Seems to happen if I'm playing music for a half hour or so without using the phone.
Sent from my Galaxy Nexus using xda premium

I am running AOKP M3 and Franco's kernel and am experiencing the exact same thing.

Benxter said:
this bug definitively occurs on francoKernel!
Try flashing another kernel (Popcorn for example) and the bug is gone.
Seems to have something to do with the sound limit. If it's too loud it stops automatically. Try reducing the volume to 60% with the hard buttons and you'll see that it stops acting like that.
Click to expand...
Click to collapse
I have noticed this. When i turn down the volume it stops doing it. But when i turn it up to max it will start doing it again
Sent from my SAMSUNG-SGH-I717 using Tapatalk

I experience this on google listen on stock 4.0.1. I thought it was a bug with the app losing audio focus. But then they updated and claimed an audio focus fix, yet it still happens. I can force this bug to happen by multitasking moderately. So i truly think this bug is related to the over aggressive memory management on this phone.

Yea I'm using Axi0m and I notice this. I think its an issue with the headphone jack. When I installed power amp, one of the features is to detect connection to the headphones... then the phone started to randomly start and stop playing music completely random.
I updated and it seems to be fixed. Still stops occasionally but at least I can listen for an extended period.
Sent from my Galaxy Nexus using xda premium

Franco Kernel updater
I'm running Lean Kernel and I get this all the time when I have the volume set to MAX on the device itself, I find if I turn it down just a bump then the problem goes away. This may be some type of fail safe for the phone itself. ??? But just turn your vol down one click and you're good to go.

I always had issues playing music with franco.kernel, it did me just like you are talking about. That **** used to drive me crazy! Anyways, no issues with CM10 M2. Also using the built in CM kernel.

yup, had this thing on both stock and codename android. google music app

Just gotta wake up this thread.
I'm having this issue on CM10.2... I had this same thing on stock JB some time ago when I connected to my BT headset..
Is there any fix for this?
Btw.
I don't use any custom kernels and this is not caused by any kernel and I don't think this to be caused by BLE.

Benxter said:
this bug definitively occurs on francoKernel!
Try flashing another kernel (Popcorn for example) and the bug is gone.
Seems to have something to do with the sound limit. If it's too loud it stops automatically. Try reducing the volume to 60% with the hard buttons and you'll see that it stops acting like that.
Click to expand...
Click to collapse
^^This
I had the same issue and realized I had the volume up too loud with the mods I had installed. Keep the volume below 80% and the problem will disappear.

Possible solution
I used to have this issue as well, where after a certain period of not actually using the phone, the music playback would just pause itself.
I discovered that I had Play music "Greenified" which is basically a hibernating task manager. That was killing the background process of any music players I had open.
Wether or not you have the Greenify app, check for any automatic task killers and get rid of them.. Maybe that will help one of you guys, it sure helped me.

Only had this happen using headphone volume boost... don't use it
Sent from my Galaxy Nexus using Tapatalk 2

Loud interference while listening to music.

Recently while I listen to music with headphones I get this random extremely loud buzzing sound that scares the crap out of me when I'm listening to music quietly. I haven't really been able to find the exact cause but have noticed that it usually happens when my phone is pulling data such as when I open a website. Seems to happen on Wifi. I use 3 different headphones and it has happened on all of them. Had this happened to anyone else? I'm currently on gummy 0.9.0 with Franco's milestone 2.
Sent from my Galaxy Nexus using xda premium

had it on aokp and cm9 but only when streaming music/downloading music and surfing the web (all done over 4G[verizon]) I just figure the phone is freaking out trying to handle it all.
Sent from my Galaxy Nexus using xda premium

I was reading up and it might be due to dsp manager. Did you have dsp installed and active on those roms?
Sent from my Galaxy Nexus using xda premium

Happens on the first few tracks I attempt to stream (via subsonic) almost every time. I wonder if any android phone will ever catch up to the iphone in music/audio quality/playback.

bpm2000 said:
Happens on the first few tracks I attempt to stream (via subsonic) almost every time. I wonder if any android phone will ever catch up to the iphone in music/audio quality/playback.
Click to expand...
Click to collapse
My trusty Fascinate definitely surpasses the iPod/iPhone in all of that with voodoo sound as well as louder volume.

I notice Volune+ is really noisy when listening to music at low volumes. If I disable it, the noise is gone.
Sent from my Galaxy Nexus using xda premium

bpm2000 said:
Happens on the first few tracks I attempt to stream (via subsonic) almost every time. I wonder if any android phone will ever catch up to the iphone in music/audio quality/playback.
Click to expand...
Click to collapse
Galaxy S with Voodoo Sound did it

Have you tried enabling high performance audio with a custom kernel like glados/leankernel/franco? It really improved S/N ratio when listening to quiet music.

Give player pro with the dsp pack a shot, its all I run and my phone is my mp3player and I use it through my setup in my car...hard to beat..and I'm an audiophile so I'm crazy picky...you won't be disappointed
the day is mine
the night is also mine

Melhouse said:
Have you tried enabling high performance audio with a custom kernel like glados/leankernel/franco? It really improved S/N ratio when listening to quiet music.
Click to expand...
Click to collapse
I actually disabled that because I thought it might be the issue but it still happened. I ended up disabling DSP manager and the audio often cuts out when I'm pulling data but doesn't make that loud ass noise.
Sent from my Galaxy Nexus using xda premium

shadowpunx said:
Give player pro with the dsp pack a shot, its all I run and my phone is my mp3player and I use it through my setup in my car...hard to beat..and I'm an audiophile so I'm crazy picky...you won't be disappointed
the day is mine
the night is also mine
Click to expand...
Click to collapse
Giving it a shot now. Sounds much better than Google music. Not sure if it will stop the music interruptions but I'll see.
Sent from my Galaxy Nexus using xda premium

Well everything so far has been a lie. Using player pro and that loud noise happened twice while I was downloading power amp from the play store. So it can't be DSP manager since I have it frozen with titanium.
Edit: I'm on wifi for the first time today so that could be another culprit. I listened to music for an hour straight earlier over 3G/4G and it hadn't happened at all.
Sent from my Galaxy Nexus using xda premium

Oops. 10 char

Zacisblack said:
Well everything so far has been a lie. Using player pro and that loud noise happened twice while I was downloading power amp from the play store. So it can't be DSP manager since I have it frozen with titanium.
Edit: I'm on wifi for the first time today so that could be another culprit. I listened to music for an hour straight earlier over 3G/4G and it hadn't happened at all.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Sorry man, I'm not sure, are your cables all good..any shorts or anything?
the day is mine
the night is also mine

Bringing this back into the light as it is still an issue. I flashed BAMF earlier today after getting fed up with the Noise problem and found that it still exists. back on CM9 if I switch the number of background processes to one (under developer options) I was unable to recreate it. So it seems to be a memory issue. For those that haven't heard the problem, plug in some headphone or an AUX cable into your stereo start playing some music, open some apps, then go to the browser and surf. When a page is loading Scroll around really fast and zoom in and out a lot. Load pages back to back try a few different pages and its bound to happen. Try image heavy pages.

Hi, I've been following this thread and decided to add to the muddle.
I bought an inexpensive portable stereo dock for my Incredible 2, made by Auvio, and got a subscription to Slacker so I could stream music while I worked (I'm a massage therapist).
It uses a short coaxial cable terminated in a 2.5mm stereo plug to connect to my phone, and sounds pretty good for only having 1" diameter speakers. It worked well with my Incredible 2.
Two weeks later I find out Verizon is going to take away my "unlimited" data plan unless I upgrade to 4G, so I got my Galaxy Nexus.
Now when I try to use the GN with my dock, I keep hearing data noise in the speakers as the app grabs & buffers the music. This didn't happen with the Dinc2.
If I move the phone or touch the cable, it reduces, but doesn't eliminate the noise. It does not happen with headphones or the GN's speaker.
Does anyone think this could be related to the issues discussed here? Any suggestions would be appreciated.
Sent from my Galaxy Nexus using xda premium

This happens to me also when my phone is in heavy use or anything that makes the CPU run high.
---------- Post added at 07:27 PM ---------- Previous post was at 07:21 PM ----------
Also want to add I has this problem today on CM9 latest nightly and on BlackIce and PCBAOKP

Zacisblack said:
Recently while I listen to music with headphones I get this random extremely loud buzzing sound that scares the crap out of me when I'm listening to music quietly. I haven't really been able to find the exact cause but have noticed that it usually happens when my phone is pulling data such as when I open a website. Seems to happen on Wifi. I use 3 different headphones and it has happened on all of them. Had this happened to anyone else? I'm currently on gummy 0.9.0 with Franco's milestone 2.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
old post quoting here
But this reminds me of the exact noises i hear when using ondemand governor with parameters tweaked , it caused the cpu to apparently change frequencies too many times in to short a time span....it was like a loud buzz/crazy reverb type sound.
Hasn't happened once when using interactive
Sent from my Galaxy Nexus using Tapatalk 2

ashclepdia said:
old post quoting here
But this reminds me of the exact noises i hear when using ondemand governor with parameters tweaked , it caused the cpu to apparently change frequencies too many times in to short a time span....it was like a loud buzz/crazy reverb type sound.
Hasn't happened once when using interactive
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I've had it with both interactive and conservative . I'm currently on the linaro aokp 38 build and I've not had it happen yet (flashed the linaro update today). Before I flashed the linaro update I was on normal aokp 38 and had the problem. A little more testing needs to be done but maybe the linaro tweeks are cause a little more stability in the memory .
Sent from my Galaxy Nexus using xda premium

Seems like the problem is that, while the music is playing "in any app" its not being givin "High Priority" over the apps in the background or foreground. For example, if you jump to the browser and load a page that requires a large amount of CPU usage, the will cause the CPU to make the music app audio lag which might be the loud screech noise as a result when the music app looses priority.
While music is playing it should have higher priority so the phone doesnt lag the audio if that makes sense.
Thats my guess on whats going on, because it only happens when my phone is multi tasking or taking on CPU load in another app.
Like I also said previously it has happen to me so far on CM9 nightly with that kernal that came with it, and also on blackice and the kernal that came with black ice. also had the problem with the Samurai kernal.

Google Music audio distortion

Is anybody experiencing audio distortion with google music and 4.0.4?
It happens a lot (3-4 times during a song) and it sounds the same as a scratched CD (it sorta "hangs" on part of a song for a few seconds).
This is not the same as screen off distortion issue that was reported earlier by a lot of people. This one happens both when I am using the phone and when the screen is off.

Not happening here. Does it only happen when streaming (not stored music)? And is this on WiFi or 3G?

martonikaj said:
Not happening here. Does it only happen when streaming (not stored music)? And is this on WiFi or 3G?
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Both wifi and 3g. I doubt it's network related beacause the app shows that the song is fully buffered. Even if I go to the begining of a cached song it still happens.

i experienced similar behavior couples times with screen on playing long track/radio podcast/mix(stored internally) running 4.0.2(google music version was 4.1.512 - before updated logo) while gnex was connect to car aux, but i haven't be able to replicate it again.

Happens sometimes. Doesn't matter whether its local or streaming, but it seems related to the phone locking up or running out of RAM/CPU usage. Something along those lines because whenever it happens (rarely) the entire phone skips or locks up for a second.
Sent from my Galaxy Nexus using XDA

Smokeey said:
Happens sometimes. Doesn't matter whether its local or streaming, but it seems related to the phone locking up or running out of RAM/CPU usage. Something along those lines because whenever it happens (rarely) the entire phone skips or locks up for a second.
Sent from my Galaxy Nexus using XDA
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You might be right. It does appear to happen more often when doing heavy multitasking.
It's kinda unusable for me right now because it's happening so lot.

Already a thread somewhere for this. But I do have the issue as well. As stated it doesn't matter if its streaming or local. Had it happen on cm9 an aokp. Also without heavy multitasking
Sent from my Galaxy Nexus using xda premium

Thanks for the confirmation guys. It seems like I'm a lot more affected by this issue than the most of you.
Do you mind sharing your rom/kernel/governer/freq settings? maybe we can find a common ground?

Franco m2, it only happens on the interactive gov
Sent from my Galaxy Nexus using XDA

Smokeey said:
Franco m2, it only happens on the interactive gov
Sent from my Galaxy Nexus using XDA
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That's interesting. I'm on lean interactivex. I'll try switching to on demand and see what happens.

ArmanUV said:
Is anybody experiencing audio distortion with google music and 4.0.4?
It happens a lot (3-4 times during a song) and it sounds the same as a scratched CD (it sorta "hangs" on part of a song for a few seconds).
This is not the same as screen off distortion issue that was reported earlier by a lot of people. This one happens both when I am using the phone and when the screen is off.
Click to expand...
Click to collapse
Are your mp3s encoded in the 48khz range? If so it's a bug in the google music player which cause it to 'lag' while it decode the mp3 file, no problems on mp3s in the 44khz range. Dunno about the new ver of google music player haven't try it and don't intend to after i migrate to Poweramp.

kensim781 said:
Are your mp3s encoded in the 48khz range? If so it's a bug in the google music player which cause it to 'lag' while it decode the mp3 file, no problems on mp3s in the 44khz range. Dunno about the new ver of google music player haven't try it and don't intend to after i migrate to Poweramp.
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Interesting. I just checked and I have about 20 48khz songs. I'm not sure if they are the ones that get distorted. I'll keep an eye on those tracks. Thanks!

This has bugged me for the longest time. *Hopes for a fix*

Just go for Poweramp. It's worth the money and it can play 48khz mp3s silky smooth. Just remember to set the options to 'Highest Thread Priority' and '750ms' buffers. There's a 14 days full features trial version, download it and have a try.

All of my songs are 44khz.
It hasn't happened on 4.0.4 yet.
Sent from my Galaxy Nexus using XDA

For those that are having issues when the screen goes off, the following worked for me.
When a song is playing, go to the top of the screen to the "..." and select sound effects. Turn on the Equalizer to whatever you want and it should work much better for you.

kensim781 said:
Just go for Poweramp. It's worth the money and it can play 48khz mp3s silky smooth. Just remember to set the options to 'Highest Thread Priority' and '750ms' buffers. There's a 14 days full features trial version, download it and have a try.
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Click to collapse
we're using google music for its streaming feature, not because we're not capable of using other players

ArmanUV said:
we're using google music for its streaming feature, not because we're not capable of using other players
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Exactly.
I'll try the sound effects thing as long as it doesn't interfere with DSP manager
Edit: lol it takes me directly to DSPmanager which is already enabled.
Sent from my GT-P7510 using xda premium

Gilbot said:
Exactly.
I'll try the sound effects thing as long as it doesn't interfere with DSP manager
Edit: lol it takes me directly to DSPmanager which is already enabled.
Sent from my GT-P7510 using xda premium
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please keep us updated about whether using dsp manager works or not.

I only have this when i'm pushing my phone to the limit or when i'm making tracks available offline while listening
Sent from my Galaxy Nexus using XDA