Stereo bluetooth (A2DP) issue on Polaris

[Mawkens]

I just bought a bluetooth headset from Sony : DR-BT21G.

The pairing works just fine, I can listen to music or make a phone call. I can even watch a divx on TCMP with the sound in the head set and no problem.

The only thing is that as soon as I put the Polaris in my pocket (jacket our trousers) the sound stops, then comes back, then stops again, etc. The pairing is not broken, but the sound keeps coming and stopping.

This is even worse when I'm walking.

If I take the phone on my hand, the sound does not stop anymore.

I have changed the following registry keys as I read on other posts but it changed nothing:

HKLM/Software/Microsoft/Bluetooth/A2DP/Settings/BitPool - change to 48
HKLM/Software/Microsoft/Bluetooth/A2DP/Settings/MaxSupportedBitPool - change to 58

Any idea were this could come from ? Any other good or bad experience with this combination ? Is it just bad luck and I have to change my headset ?

Thanks for your help.
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WM 6.1 (bepe 0.66)
CE OS 5.2.19202 (Build 19202.1.0.0)
ROM Version : 1.52.751.2WWE
RadioVersion : 1.70.OliNex
Protocol Version : 25.65.30.04H

[Mawkens]

I have installed the two patches for bluetooth, released by HTC official web site.

But this did not fix anything...

[g0r3t3x]

Yo dude,


I've got the same problem with a Sony Ericsson HBH-DS980.


I've not tryed to install the patches because i just received my cruise from repairing service.


I'll try and tell u.


Bye

[milli260876]

i too have this annoying problem with no joy from the hotfix.... ring htc tell them you want it fixing under waranty i am!

[sonus]

1. Did you either restart your phone or restart the blueooth after making the registry changes?

2. If you did and it still didn't work for you, I would reduce both bitrate settings to the 28 and then restart either the blueooth or the phone which should fix your issue pretty much immediately. I would then up the A2PD settings at increments of 4 until you figure out the Sony DR-BT21G bitrate threshold. (Again be sure to restart either the phone or the bluetooth after each increase.)

FYI: The hotfixes aren't supposed to fix A2DP issues.

[Mawkens]

Thank you very much Sonus for your help.

Unfortunately I tried to tweak the bitrate according to your advice but it does not change anything.

I put the bitrate down to 2. It is true that I have less cut, but still, the connection drops from time to time for somes seconds.

Is the idea of this bitrate to catch the one of the device or is it : the lower, the better connection ?

I did not noticed any effect on the quality of the sound though.

Notice that I restarted the Polaris each time I change the value.

If you have any other idea or comment this will be more than welcome.

[reyjabs]

Here's the solutions guys.

http://forum.xda-developers.com/showpost.php?p=1296052&postcount=1

After implementing everything in there, I soft resetted the device, reverted the AKU back to .0.4.5(HKLM\System\Versions\AKU) then installed the HTC BT Fix and voila! No more issues. Excellent! Calls notifications are now coming direct to the headset. :p

By the way, i'm also using Sony Ericsson HBH-DS980

[g0r3t3x]

Here's the solutions guys.

http://forum.xda-developers.com/showpost.php?p=1296052&postcount=1

After implementing everything in there, I soft resetted the device, reverted the AKU back to .0.4.5(HKLM\System\Versions\AKU) then installed the HTC BT Fix and voila! No more issues. Excellent! Calls notifications are now coming direct to the headset. :p

By the way, i'm also using Sony Ericsson HBH-DS980

Yep i reverted aku to .0.4.5, installed the HTC BT fixes, and now i have no more "holes" in sounds.


But what is this solution ? i don't really understant what is it for?

I have the same headset as you, did u see any difference in the quality with the solution you mensioned?



Thx for ur future answer


David

[Mawkens]

I have done all what was written in the thread :

- deleted the two regkey (MaxSupportedBitPool and BitPool)
- set the AKU value back to .0.4.5 (the initial value was .1.0.0)
- reset the TC (many times :D )

But still, I suffer from cuts in the connection where the sounds just stops in the headset.

I just want to precise that I never suffered from low quality of the music. All the time I can experience very high quality sounds. Only the headset stops playing for half a second, two seconds, then play again, then stops...

Any help more than welcome....

[nushuth]

i have same problem but with my non-stereo, non-A2DP headset. when i put the phone in my pocket, sound become "choppy".. anyone know a solution for me?