[Q] Bluetooth Quality / Best BT Rom/Kernel? - Samsung Epic 4G Touch

I installed a new car stereo that has A2DP bluetooth audio support.
But I'm getting bad audio quality. Basically anything with cymbals or high end get's distorted. A **LOT** of people over the last couple years have complained about this.
It's talked about:
http://forum.xda-developers.com/showthread.php?t=866393
http://forum.xda-developers.com/showthread.php?t=708685&page=3
Android: 2.3.6
Kernel: 2.6.35.7-SPH-D710.EK02-CL70439
Baseband: D710.10 S.EL13
Once cyanogen actually is out for the Epic Touch I'd try it out. But has anyone else noticed a rom/kernel they have success with? Specifically that you don't notice issues with high frequency (drum cymbals etc) stuff? Again it works, but I get high frequency distortion.

Possible Fix?
One user says that moving to 2.3.6 fixed it for them. I suspect they are talking about the official OTA update but not sure.
http://code.google.com/p/android/issues/detail?id=9888#c134
I'll try the stock rooted EL26 rom and see if that helps.
http://forum.xda-developers.com/showthread.php?t=1415924

My experience is that bluetooth AD2P sounds terrible. Hopefully I'm wrong though and you'll find a solution...

Sounds good with me. I'm on UnNamed el13 with rogue kernel and use power amp. Zero problems for me

suwu10 said:
Sounds good with me. I'm on UnNamed el13 with rogue kernel and use power amp. Zero problems for me
Click to expand...
Click to collapse
Same for me on strongsteve's EL13 build with PowerAmp.
Sent from my SPH-D710 using xda premium

No Success Yet
In case someone else searches and finds this thread, still no success with either the new 2.3.6 EL26 stock rooted rom or with Unnamed EL13.
It **appeared** that using "Power Amp" seemed to help some, but I'm curious if that was just some good auto-eq that they use. Will wait for Cyanogen and hope that fixes it but for now looks like I'm giving up on Bluetooth music streaming

SUCCESS!!!!
I found a cyanogen 7.2 port that mostly works great for Bluetooth audio (minus 4g and GPS).
rootzwiki.com/topic/12440-romunofficial-cyanogenmod-72-alpha-3-12-28-11-bluetooth-is-fixed

Related

Poor audio quality

Just a quick question...installed KINGS rom and loving it! However, I've noticed when playing any audio now, the quality is degraded. Has anyone else experienced this? I tried installing the newest version of Pandora, but it didn't seem to help. Checked the forums for answers, but couldn't find anything. What say you? Thanks!
Sent from my PC36100 using XDA App
You can try getting DSP Manager to boost your audio.
Sometimes I definitely notice that different kernels affect audio quality too. I think some of them have various audio tweaks built into them. Perhaps trying a different kernel may have some affect on it too. I tried that rom for a few hours, but donn't remember checking the audio quality on it.

Your bluetooth streaming experiences

I stream my music from my phone to my car's JVC stereo unit via bluetooth. And I've noticed something and want to check with the community.
On TW gingerbread builds the audio stream is very poor. Lots of static and overall poor quality.
Then came the first few ics leaks. All of a sudden music over bluetooth is magical. To the point where I can't tell its being streamed via bluetooth and not aux.
Then came CM9 and AOSP, which also worked magically so I've been using them. But they have semi-poor battery life and issues with SD cards.
So I go back to a TW base ics leak because I like that everything just works and wanna be simple for a while, some of the new FE ones to be specific. And now all of sudden the bluetooth streaming sucks like it did on gingerbread.
Why? What changed? I'm pretty sure that around the FD teens leaks the bluetooth streaming was still fine. Not sure when it started to suck cause I mostly have been on AOSP. Does the modem affect the bluetooth radio? kernel?
I have exhausted all my knowledge and testing and scenarios that I can think of and cannot figure it out. Anyone know why this might be happening?
Anyone have similar experiences?
My Bluetooth music streaming has always been solid. Idk what happened in your case but i believe BT Stack libs were updated or something like that lol
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I stream via BT to my factory VW deck. I've had great experience on GB and the latest ICS leaks.
The early ICS leaks I noticed some popping, but I haven't heard that in awhile.
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Really? What modem do you guys prefer?
Sent from my SPH-D710 using XDA
locoboi187 said:
My Bluetooth music streaming has always been solid. Idk what happened in your case but i believe BT Stack libs were updated or something like that lol
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Click to expand...
Click to collapse
You are correct.
phatmanxxl said:
You are correct.
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Click to collapse
Could you direct me on where they might be located? Would you think it feasible to switch them with ones from cm9 and that might fix my issue?
You think modem is the culprit?
Sent from my SPH-D710 using Tapatalk 2
I think a bad bluetooth experience has to do with your receiver. I drive a ford with all the myFord hoopla and it used to work more of less but there were bouts when it was terrible and unusable and i had to pull the fuse to reset it. However there was a huge update to the software and I have not had a single problem with it since then. Streaming music, answering calls, phonebook download, receiving and sending texts all work great for every rom i have tried.
Masterface7 said:
I think a bad bluetooth experience has to do with your receiver. I drive a ford with all the myFord hoopla and it used to work more of less but there were bouts when it was terrible and unusable and i had to pull the fuse to reset it. However there was a huge update to the software and I have not had a single problem with it since then. Streaming music, answering calls, phonebook download, receiving and sending texts all work great for every rom i have tried.
Click to expand...
Click to collapse
This is what I thought at first. But it doesn't explain why AOSP roms always work perfectly. Doesn't matter which one. No problems, perfect audio Yet GB and now the new ICS leaks work so terribly. It doesn't make sense. And it doesn't explain why TW ICS used to work great and now they don't. I can't figure out what is changing that is causing the difference.
I hated the GGB BT streaming. Too much popping and crackling.
ICS has been very good to me streaming, quality is superb. I haven't noticed a reduction in quality with FE10 from FE07 and earlier ICS builds. What I did notice is that with FE10, the pause/play button on my remote now works again for Google Music, which is nice.
No issues streaming siriusxmonline through Ford sync
Sent from my Xoom using XDA Premium HD app
Head sets?
I'm a fan of noise attenuating ear buds, ala JVC ha-fr50 whilst I'm driving for podcasts and phone calls.
Are there any decent BT ear buds like that? Something that blocks out a fair bit of the external road noise. As for the mic, I've had some folks say I sound fine but a little distant with the mic on those ear buds, but normal and clear when I practically eat the thing. I've never used BT ear buds or the streaming but from what you guys say, it seems sound quality isn't much of an issue.
No issues streaming BT on GB strongsteves ROM to my Sony receiver.
EL29 modem I think
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Thanks for the responses guys. Apparently somethings changing on my phone with each flash or my Bluetooth radio is faulty in a slight way. Not in a big enough way to warrant a replacement uunfortunately. I'll see what I can figure out.
Sent from my SPH-D710 using XDA
What are you streaming through? My vw is a pita, but after some slapping it around I can usually get it to work.
Early leaks of ICS had popping, but that is gone in the later leaks.
Sent from my SPH-D710 using xda premium
Streaming just music from my sd card. The deck also supports bluetooth calling and connects to that at the same time. I never use it though, unless someone calls me. Connecting to the unit works just fine for all roms and versions, just the streaming quality is drastically different.
I was actually gonna see if i could get the unit to connect just the media and not the phone and see if that helps. I really don't know what else could be causing it. I can't pinpoint anything thats common or reoccurring each time the quality is bad.
All I know is AOSP works. Everytime. But why?
MrDowntown12 said:
Streaming just music from my sd card. The deck also supports bluetooth calling and connects to that at the same time. I never use it though, unless someone calls me. Connecting to the unit works just fine for all roms and versions, just the streaming quality is drastically different.
I was actually gonna see if i could get the unit to connect just the media and not the phone and see if that helps. I really don't know what else could be causing it. I can't pinpoint anything thats common or reoccurring each time the quality is bad.
All I know is AOSP works. Everytime. But why?
Click to expand...
Click to collapse
Look around. I believe someone else was having a similar issue but backwards.
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After some digging I found these threads here and here. Both by the same guy.
It appears he was onto a solution or at the very least a cause. Unfortunately, it appears that once ICS came out, the problem was solved by Samsung and it was quickly forgotten with no solution.
Except now, for me at least, the ICS TW roms don't stream properly anymore.
Also, just had a thought. When going between roms, I have skipped over flashing Caulks format all and just wiped data. Never had any problems, but I remember reading back in the hero days that not formatting every partition leaves some old files on the phone, and possibly bluetooth files are stored there? Should I try flashing a tw ICS rom after an AOSP rom without running format all?
MrDowntown12 said:
After some digging I found these threads here and here. Both by the same guy.
It appears he was onto a solution or at the very least a cause. Unfortunately, it appears that once ICS came out, the problem was solved by Samsung and it was quickly forgotten with no solution.
Except now, for me at least, the ICS TW roms don't stream properly anymore.
Also, just had a thought. When going between roms, I have skipped over flashing Caulks format all and just wiped data. Never had any problems, but I remember reading back in the hero days that not formatting every partition leaves some old files on the phone, and possibly bluetooth files are stored there? Should I try flashing a tw ICS rom after an AOSP rom without running format all?
Click to expand...
Click to collapse
I don't think that would be the case, but def worth a try. Lets us know since I would LOVE to be using my BT audio, but it reduced the quality too much for me, no popping etc, but, too poor quality for a good stereo/speakers and my prude-ears
Well I did try everything I could but came up empty handed. Theo only way I can get good Bluetooth quality is by running an AOSP ROM.
That itself isn't a bad thing because I love AOSP, but its a weird occurrence.
Sent from my SPH-D710 using XDA

[Q] Bluetooth audio on CM10

I clean installed the "stable" release of CM10 the other day when it came out. My Bluetooth audio has been horrible since. The volume is really low but worse is that the quality is not good either. For phone calls it's use able but I connect it to my car and play music on it too. Needless to say, it makes the music just awful. I also use it with my Big Jambox in the house and this is awful too. I tried wired connection with the Jambox and it was great so it seems to be only Bluetooth audio. I was on CM10 night lies before flashing the stable one. I have tried clean installing the night lies that came after and still the same problem. One thing I haven't tried is clean installing the night lies before the stable version, like I had before. I just wanted to see if others are having this problem and if there is a fix for it first.
I am having the same problem. Is there a fix for this yet? I've been searching and found something about replacing a line in a .conf file however it was posted in gs2 forum.
jlor23 said:
I clean installed the "stable" release of CM10 the other day when it came out. My Bluetooth audio has been horrible since. The volume is really low but worse is that the quality is not good either. For phone calls it's use able but I connect it to my car and play music on it too. Needless to say, it makes the music just awful. I also use it with my Big Jambox in the house and this is awful too. I tried wired connection with the Jambox and it was great so it seems to be only Bluetooth audio. I was on CM10 night lies before flashing the stable one. I have tried clean installing the night lies that came after and still the same problem. One thing I haven't tried is clean installing the night lies before the stable version, like I had before. I just wanted to see if others are having this problem and if there is a fix for it first.
Click to expand...
Click to collapse
radiumX said:
I am having the same problem. Is there a fix for this yet? I've been searching and found something about replacing a line in a .conf file however it was posted in gs2 forum.
Click to expand...
Click to collapse
I got the same thing going on on mine guys ... Bluetooth messes with the sound , but for some reason its from time to time , like if i reconnect it it will work , when it wants to , I have a great system in my car , and its like if I had no base... which sucks lol!!
Yeah I tried reverting the conf fine and it broke a2dp
Sent from my SPH-L710 using Tapatalk 2
I just went back to the Experimental one before they released the stable and of course, the bluetooth audio is back to being good. Haven't flashed any of the nightlies since then. Anyone try the latest nightlies and see if any of them work?
Making a call (to any number... I called my voicemail) then hanging up will fix the quality. Hopefully there will be a fix soon.

Google Music and sound quality on BT...

Hi,
Coming from gnex... so I'm used to stock android ROMs...
So I flashed CM10 and another ASOP ROM onto the gs3... Having two issues...
1) I found that Google Music does not start playing when I connect to bluetooth with my car stereo... even if I press the button on the bluetooth.. I have to start Music manually.
2) The music quality is horrible... there's no bass at all... something is really wrong here... even playing with EQ it does not do anything... sound is very hollow... flat....
I never had these problems with my gnex and stock android roms... even the stock touchwiz for the gs3 from bell it was fine...
Anyone has any ideas?? I really don't want to put touchwiz roms on... If there's no workaround... I think I'm gonna get a nexus4.....
thanks!
This seems to be a common problem with Jelly Bean roms. My phone does the same thing. There are threads in the forums with temporary fixes, but I would say stick it out for another couple days until 4.2 becomes available to us from the developers. PLEASE don't go back to TouchWiz :crying: the nightmares.
-Brandon
I just hope 4.2 comes out soon... I miss my gnex....
felchi80 said:
So I flashed CM10 and another ASOP ROM onto the gs3...
... there's no bass at all... something is really wrong here... even playing with EQ it does not do anything... sound is very hollow... flat....
Click to expand...
Click to collapse
Not sure if you're experiencing this issue I'm about to tell you about, or something else.
But a release or two ago (not sure if it's fixed yet), the bass was "broken" for bluetooth on CyanogenMOD/AOSP.
Everyone who updated their CM10 started to experience a loss of bass when using bluetooth.
Prior to that it had been fine.
If it hasn't been fixed yet, I'm sure it will be soon. There is a "workaround fix" listed in the CM10 thread.
In general though, music via bluetooth is a big step down in audio quality vs. using the USB audio, which is now working in CM10.
CZ Eddie said:
Not sure if you're experiencing this issue I'm about to tell you about, or something else.
But a release or two ago (not sure if it's fixed yet), the bass was "broken" for bluetooth on CyanogenMOD/AOSP.
Everyone who updated their CM10 started to experience a loss of bass when using bluetooth.
Prior to that it had been fine.
If it hasn't been fixed yet, I'm sure it will be soon. There is a "workaround fix" listed in the CM10 thread.
In general though, music via bluetooth is a big step down in audio quality vs. using the USB audio, which is now working in CM10.
Click to expand...
Click to collapse
oh ok... let check it out.
thanks!
those threads can get so long... hard to follow every post..
So it seems the workaround is to make a call beforehand...
Are there any vanilla android roms that don't have bluetooth issues for our s3?
TW roms seem to have crappy battery life...

Bluetooth audio clipping on custom 4.1

I've tried many custom ROMs in the original development forum (cyanogen, task's, baked, slimbean, open kang, liquidsmooth, vanilla rootbox, paranoid android and I think one was called paranoidKangdroid). I've tried 4.1 and used madmack's revert with 4.2. It got my Bluetooth music streaming to "work" but I still find the audio isn't as clear as stock. With any custom I've tried there seems to be a lot of digital clipping. Depending on the type of music I'm listening to it becomes more noticeable. Basically anything with heavy drums or guitars clips the audio. I've tried lowering the output level on BT volume but that didn't solve anything.
I am aware BT audio is broken with 4.2 I'm only referring to 4.1 and madmack's revert on 4.2 (I'm a noob and I don't know how to put it in technical terms but from what I understand madmack's revert brings part of the software back to 4.1....or pre dec26 when bluetooth audio streaming broke)
Has anyone else noticed this clipping problem and have you found any solutions? I'm also wondering if it could be a problem specific to my phone but for whatever reason when I go back to stock, music streaming is totally clear.
Also, aside from madmack's revert fix I've never flashed anything but the ROMs themelsves. I have never tried to install a driver or a kernel seperatelt and I'm wondering if that's something worth trying.
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