Bluetooth A2DP stuttering, doesn't happen with any other device - Nexus One Q&A, Help & Troubleshooting

My N1's a year old, and recently it's developed an issue where A2DP stereo headsets stutter profusely with any sort of music, even when I'm right next to the device.
My headset and car audio pair fine with both my N1 and my Desire, but the N1 stutters like hell even in close range, whereas the Desire works freely throughout a room or the car.
I'm using CM7 and even switched to CM6 to test after numerous people reported it's a new BT stack in 2.3.3 that's causing the issue, but the problem still thrives.
Any suggestions on what to do?

Even flashed back to a stock EPE54B unrooted image. Same problem.
Radio issues, perhaps?

Related

Bluetooth nexus one connecting to Renault carkit

I recently got my new Renault Scenic car and discovered a rather strange situation.
The phone pairs with the carkit and connects the first time without issues and works like a charm.
But however when I start the car and thus also the carkit the phone connects also but no audio is heared trough the carkit when calling or getting called. The phone says it transfers the connection to the carkit but nothing is heared.
It only works when I have bluetooth off, starts the car and then turning bluetooth on the phone on. Wait till it connects and make a call. With this procedure the connection is good till I step out the car.
Its a work around but hmmm not the one i would love to.
I have a nexus one rooted with the latest MCR (21) and an intersect kernel. Though I tried different kernels also but no go.
Hopefully one of you guys have an idea
Ok I searched a bit and found out the Bluetooth is done with the opensource code Bluez. So I wonder which version of Bluez is in the froyo roms and how it can be updated if possible to a new version.
Anyone knows ?
I feel your pain, I have a Renault Grand Scenic III (purchased last December) and the hands-free is unreliable, but music streaming (A2DP) is even worse as most often than not it will fail to connect.
I have to say that the hands-free works fine most of the times (for the phone part, not for music), but some days it will refuse to work no matter what. Since it isn't working much better with my wife's Nokia (BTW, which I had to do a firmware update or else it went into a permanent reboot loop when connected to the car-kit), I assume the problem lies on the car, not on the phone. I have yet to see if my Hero, which has been recently updated to Android 2.1, behaves any better. A firmware update on the Bluetooth car-kit seems a better approach, but I'm unaware if one exists since after some digging it seems my car doesn't use the OEM Parrot kit that other earlier models carried.
igalan said:
I feel your pain, I have a Renault Grand Scenic III (purchased last December) and the hands-free is unreliable, but music streaming (A2DP) is even worse as most often than not it will fail to connect.
I have to say that the hands-free works fine most of the times (for the phone part, not for music), but some days it will refuse to work no matter what. Since it isn't working much better with my wife's Nokia (BTW, which I had to do a firmware update or else it went into a permanent reboot loop when connected to the car-kit), I assume the problem lies on the car, not on the phone. I have yet to see if my Hero, which has been recently updated to Android 2.1, behaves any better. A firmware update on the Bluetooth car-kit seems a better approach, but I'm unaware if one exists since after some digging it seems my car doesn't use the OEM Parrot kit that other earlier models carried.
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Hi,
I've just come across your post. Did the situation improve ?
I'd just point out that for me it comes from the Android system : I own a Renault Mégane 3 and was able to fully use the bluetooth system with my HTC HD2 (Windows Mobile 6.5). Now, I've just installed Android 2.2 on it and I encounter a similar behavior... and the car can't connect to the phone directory either...
Looks like I'll boot back on Windows Mobile when driving...
Regards,
Stéphane
My Hero with the official 2.1 ROM is now 100% reliable. The Nexus One with Froyo isn't, A2DP is still hit & miss.
Well... I'm getting the same but not with Renault ones.
I have LiquidAUX on my car and to have both phone and a2dp synced, I have to restart phone BT and LiquidAUX every time I go into car. And most of the times I can only have 1 connection each time, or phone is on and a2dp is off or a2dp is on and phone is off. It's really annoying since I had an HTC Hero with Android 2.2 and it used to work with no problems...
Hello, I've the same issue with my new Renault and Nexus LG. The phone pairs with the carkit and connects the first time without issues and works like fine. Once someone calls, the connection is terrible or lost! I checked the phone compatibility list at Reanoult and the NEXUS LG is on that list. So it should work. Updated R-link2, same issue. I went to the Renault garage and they told me that this is a bug in the Renault software, they can't do anything about it. Can't believe this, there should be a solution or fix.

Music Skipping When Using Bluetooth Stereo Headset

I have tried three different headsets on two different Incredibles and the music skips when walking or running when listening to music on the headset. Has anyone else had this happen and is there a fix?
Sent from my ADR6300 using XDA App
Might defeat the purpose but use the headset blocker widget in the market. Just search "Headset blocker" and put the widget on one of your homescreens then activate it.
It may defeat the purpose of saying commands and such, but it should let you listen to your music without problems.
droidiac13 said:
I have tried three different headsets on two different Incredibles and the music skips when walking or running when listening to music on the headset. Has anyone else had this happen and is there a fix?
Sent from my ADR6300 using XDA App
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I have the same problem with my Motorola H9s. That was with my Blackberry Storm.
After much searching on the internet, it seems the position of the source is important. I get a minimum of skipping if I carry my phone in my back pocket.
I had skipping before I had to keep the phone above my waist to avoid it.but it was better indoors
same here. if i keep it above my waist it works better. doesn't seem right though!
If you are running a 2.2 rom, there seems to be some issues with bluetooth in general for the leaked build. My friend has had problems with music stuttering in his car connected thru the Sync thingie, and said there were a bunch of reports of shoddy bluetooth connectivity.
Just something else to consider.
I've been curious about this myself (if there's a bluetooth issue) - I have a motorolla t505 in the car, and bluetooth to it has been flaky to setup since SR2.5 and there have been random skips during playback.
I truly think it is a bluetooth issue. I'm on stock 2.1 and it has occured on two seperate phones and I have also tried 3 seperate headsets. Of course HTC says they have never had this problem.
Grikshanks said:
If you are running a 2.2 rom, there seems to be some issues with bluetooth in general for the leaked build. My friend has had problems with music stuttering in his car connected thru the Sync thingie, and said there were a bunch of reports of shoddy bluetooth connectivity.
Just something else to consider.
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Click to collapse
Its not just Htc, friend runs cm6 nightlies on droid 1 and has bluetooth issues. I haven't looked into it much because I don't use bt, but he was saying there were lots of people having problems.
Not that that's necessarily what's going on here, however.
This is typically a headset issue. I have the moto s9's and the skipping happens when a good line of site to the device isn't present. Kind of defeats the purpose if you have to hold your phone while using the headset. I have noticed though that single mono headsets dont have this problem when running the audio apps.
I ran across this thread while trying to find a similar thread about the Samsung Captivate. I had the same issue and was going to post what I did to fix it. I'm sure the problem is phone-specific, but I figured I'd post it here anyway. I use my Motorola S805 headphones with my Captivate at work on a daily basis. I typically leave my phone on the charger and stream music through Rhapsody via my 3G connection (unlimited, thankfully...we don't have wifi at work). I regularly walk up to about 40 feet away from my phone, with no skipping or sound-quality issues whatsoever. I had a lot of issues with skipping when I first got the phone, and I figured out what was happening. If I leave WIFI turned on, but I'm not connected, the music skips. If I'm connected to a router, it doesn't. I believe the phone was polling for WIFI connections every so often and possibly causing a CPU spike or something similar. If I'm out of WIFI range, and simply turn my WIFI off, my music will play great all night long.

Does bluetooth normally suck this much on the Hero?

So I bought a set of bluetooth headphones on Amazon.com recently, and they are working really badly! The audio constantly stutters on CM 6.0, and still stutters quite a bit on Darchrom 2.8. It also has pretty pathetic range, if I put my phone in my pocket or even hold it in my hand below my belt it just cuts out completely!
Is this normal for the Hero or do these headphones just really suck?
idumych said:
So I bought a set of bluetooth headphones on Amazon.com recently, and they are working really badly! The audio constantly stutters on CM 6.0, and still stutters quite a bit on Darchrom 2.8. It also has pretty pathetic range, if I put my phone in my pocket or even hold it in my hand below my belt it just cuts out completely!
Is this normal for the Hero or do these headphones just really suck?
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I'd say it was your head set. I use my phone to play bluetooth over my car stereo and it's great. I've had it connect to my phone which was inside my apartment and play without issue.
Thanks for the reply! Which ROM do you use, stock or a custom one? I tried it with the Cyanogen Mod RC1 and also Darchrom 1.8, but I haven't tried the stock sprint rom yet.
I'm running the CM 6.0 RC1 basically. I've had some Sense ROMs on it as well and they've worked well enough. Didn't really run stock build long so can't really say much for how well that works.
I also have bluetooth problems, and it is not my headset. The headset pairs, and has great range with my motorola Q. When I pair it with my Hero, it has a 2 foot line of site range, if I hold it in my other hand, it cuts out.
I have a hero running stock 2.1, rooted. My carrier is MTS in Manitoba.
I don't know of any ROMs that would work with my carrier, so I am hesitant to try any other.
Any suggestions?
Thanks
Try disabling stagefright in the build.prop file. It fixes audio issues with Pandora on CM6.
I have a cheap insignia headset, and it works for my needs...but, I do have the same problem with the phone in my pocket. I sometimes get the stuttering thing, but I think that it happens for me during syncs and other data stuff happening. Usually tho, I don't have this problem. I'm on froyo 817 build
Sent from my HERO200 using XDA App
Jedis said:
Try disabling stagefright in the build.prop file. It fixes audio issues with Pandora on CM6.
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I just tried this, and it made no difference. Thanks for the tip though. I hope to get my hands on another hero, just so I can check if my hardware is defective.
I have the Motorokr S9-HD headset. I get crappy signal or connection on my Hero running cm6 RC1. I've also noticed this on other roms. You pretty much need a arm band to get better signal. I've found that by placing the phone in your pocket it cuts in and out. I think it sucks but the only cure I've noticed so far is an arm band. Hope this helps, peace, Chags
It's so bad, I can't even have the phone on the straps of my backpack 2 feet away. The signal cuts off if you move the wrong way.
bluetooth issues
Hey guys,
I had a motorokr as well, and it blew chunks for range. I also have a Motorola HT-820 bluetooth headset, and it does great with the hero on the same ROMs. This isn't an issue with the Hero software -- I talked to Motorola about it, and they said the headset was defective. I sent it in for replacement and I'll let you guys know how it goes.

Bluetooth Audio Playback Issue - ICS Stock with Faux Kernel

Hi All,
I have a problem I'm troubleshooting and wanted to see if anyone had any ideas. I'm currently on the stock AT&T ICS rom, rooted, s-on with the Faux kernel. Have been running for more than a year with no major issues.
For xmas this year I received the LG bluetooth tone+ stereo headset (hbs-730), which is comfy and has great audio quality. Until I walk around or go outside or move too much.
The connection range is like 5-10 feet at best and sometimes the connection has intermittent interruptions just when the phone is in the pocket of my wool coat and I'm walking to the train.
My next steps are to try my wife's vivid (stock ICS, unrooted, and stock kernel) and maybe dig up one of my old dumbphones to see if the problem happens with it as well.
My google-fu pulled up some similar complaints about bluetooth audio playback problems with ICS across many devices and ROMs, so I wondered if maybe this was a known issue and had been fixed in any of the available custom ROMs for the Vivid?
Any other ideas?
The signal?
envygreen said:
Hi All,
I have a problem I'm troubleshooting and wanted to see if anyone had any ideas. I'm currently on the stock AT&T ICS rom, rooted, s-on with the Faux kernel. Have been running for more than a year with no major issues.
For xmas this year I received the LG bluetooth tone+ stereo headset (hbs-730), which is comfy and has great audio quality. Until I walk around or go outside or move too much.
The connection range is like 5-10 feet at best and sometimes the connection has intermittent interruptions just when the phone is in the pocket of my wool coat and I'm walking to the train.
My next steps are to try my wife's vivid (stock ICS, unrooted, and stock kernel) and maybe dig up one of my old dumbphones to see if the problem happens with it as well.
My google-fu pulled up some similar complaints about bluetooth audio playback problems with ICS across many devices and ROMs, so I wondered if maybe this was a known issue and had been fixed in any of the available custom ROMs for the Vivid?
Any other ideas?
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Hi, I has Motorola S10-HD and I currently on the "Extreme Holiday Dream-X2" and the music is cut but depends in the zone in the I walk, for exemple, I think that there is "interferences" for the others microwaves, and this causes this crashes!
Greetings!:good:
I expected some interference depending on where I went, but my headset was completely useless except in very narrow situations. Yesterday before I left work I downloaded and ran a bluetooth fixer app that says it resets all your bluetooth settings. Haven't had time to see exactly what it does, but I was able to walk home and back to the train this morning with only the slightest hints of interference. Curious to see if the range is better now too. I should test it because I was only able to get about 5-10 feet when inside before.
https://play.google.com/store/apps/...wyLDEsImNvbS5waGsuYmx1ZXRvb3RoZml4cmVwYWlyIl0.

[FIX] Possilbe A2DP Streaming Workaround

Stuttering and skipping streaming are very known issues on many jelly bean devices.
The most times when I listen to music in my car, i do this via bluetooth. So it is really annoying me and some day, I will have an accident, while I am fumbling with my HTC One.
I replaced the audio.a2dp.default.so with one of the Nexus 4 (4.2.2) and it just worked well, but only the first time using bluetooth streaming after rebooting the device.
I changed some settings in audio.conf and it still stutters.
But then, i deactived wifi while the device was streaming and all stuttering and skipping was gone.
So... can someone just confirm, whether the a2dp streaming works correctly, when wifi is deactived?
I want to know, whether this is the only point to get this work and I don't want to change my working mess
is nobody interested in this?
I posted this bluetooth issue a while back on this forum, and the issue is corrected by switching off WIFI while using BT. Apparently the new update which is due soon fixes the issue but only one user has confirmed that so far.
Since I use bluetooth streaming on the car mainly, I use Tasker so that when Bluetooth connects, it automatically switches WIFI off (don't need WIFI while driving and saves battery), and when it disconnects it switches it back on. This way the phone just works seamlessly.
Just turning the wifi off and back on again when I connect bluetooth seems to solve this issue for me.
i can confirm - turning wifi on/off fixes it as well for me (until next time I go bluetooth)
I discovered this a couple of weeks ago too. I was about to send it back too. Cant live without podcasts and audible in the car!
I have the problem that i cant even here any sound on my HTC CAR A100 Car Stereo Clip, even if wlan is deactivated With my old sensation everything is okey..
Gleetch said:
I replaced the audio.a2dp.default.so with one of the Nexus 4 (4.2.2) and it just worked well, but only the first time using bluetooth streaming after rebooting the device.
I changed some settings in audio.conf and it still stutters.
But then, i deactived wifi while the device was streaming and all stuttering and skipping was gone.
So... can someone just confirm, whether the a2dp streaming works correctly, when wifi is deactived?
I want to know, whether this is the only point to get this work and I don't want to change my working mess
Click to expand...
Click to collapse
I wonder if this also improves the bitpool value. I'm noticing on my HTC One that bluetooth streaming quality is not very good. From what I've read it has to do with a bitpool value that it set too low, increasing this value is supposed to increase the streaming quality. Highs sound distorted on my phone over BT I can't believe Google/HTC have not addressed this issue.
I have not been able to solve the bluetooth audio streaming issue by turning off WiFi for my car. It works perfectly fine with my Jambox even with WiFi turned on, but in the car, it does not work either way and I'm using software version 1.29.401.13
CelticDiablo said:
I have not been able to solve the bluetooth audio streaming issue by turning off WiFi for my car. It works perfectly fine with my Jambox even with WiFi turned on, but in the car, it does not work either way and I'm using software version 1.29.401.13
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I'm running 1.29.401.13 too and it looks like it is working nearly perfect for now. I can remember only one time, when it stopped for a second. Mabye the car radio is facing similar problems? Did you try to update the firmware or whatever of you car radio?
Gleetch said:
I'm running 1.29.401.13 too and it looks like it is working nearly perfect for now. I can remember only one time, when it stopped for a second. Mabye the car radio is facing similar problems? Did you try to update the firmware or whatever of you car radio?
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I've tried researching how to update the firmware of my car's bluetooth, but have had zero luck there as well. It's a 2009 Acura TSX.
TheUntouchable said:
I have the problem that i cant even here any sound on my HTC CAR A100 Car Stereo Clip, even if wlan is deactivated With my old sensation everything is okey..
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Did you manage to fix the problem with the A100 as mine is exactly the same, works fine on my Sensation but no the HTC One.
have the same problem:
If wifi is ON and bluetooth is ON, eg at streaming youtube over the bluetooth headset, it stutters and has distortions.
If wifi is OFF and stream a video from the sdcard over bluetooth all is fine.
what i find out:
I use the JellyBean from Quarkx for defy.
The build from 7.3.2013 worked
All later builds, with the new wifi driver had this problem.
But its a known bug that JellyBean has a2dp issues, i guess.
This trick, to change audio.a2dp doesnt helped me
I didn't noticed any problem with my phone even when the wifi ON, I'm using the latest radio "4A.16.3250.24_10.38.1150.03L" found in this post: http://forum.xda-developers.com/showthread.php?t=2245615
I don't know if it can help..

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