Develop Bugs

Need to send audio to my BT handset (willing to pay $$)

Hi guys
I've recently purchased an XDA IIs and i just love it! I also got a JabraBT800.
I've got Destinator 3 and was wondering if there was any way I could use the BT headset to play the destinator voice prompts, and infact, all other audio (including audio recordings on the XDA and other audio such as mp3's etc.)
I know the quality wont be good when listening to mp3's but quality doesnt matter.
I'm sure there would be a workaround to using the headset for this purpose? I've searched the 'net all over and have not been able to find anything!
HELP!! I'm willing to pay $ in order to get this working!

Anyone??

Here is the magic key, that gets me very close, with a temporary shift of sound to the Jabra 250, then back to the internal speaker. Maybe other headsets can keep the sound transfer or someone can find the next step to get this stable.
HKLM\Software\Widcomm\Plugin\Handsfree
Change AudioPreferences to (3)
Change AudioHandling to (19)
Make sure SupportedFeatures is (55)
What did this change?
Go to Bluetooth Settings, Services, Hands Free, and hit the Advanced button. Notice the whole new checkbox called "Standard Audio" and paragraph about playing music, notifications, etc. on your headset.
My Jabra now is labeled an Audio Gateway in the Bluetooth manager. Still works for phone calls, partners and begins to transmit standard audio with every sound. Just reverts back in internal speaker after 1/2 second of sound or so.
Good luck with the next steps. I noticed there is a AudioGateway device defined in the registry using AudioGateway.dll There is also an BTAudioGateway.dll, but it is not defined anywhere in the registry, maybe this is a key registry setting that is missing.

Anyone got more info on this? It seems the feature is there, we just need a way of making this perm!

Thanks for that info Paul.
I tried it and I did get the 'Audio Gateway' setting in my BT settings page. However, I could not get the 1/2 second audio at all.
Connection status also showed no activity sent while audio was playing on my XDA IIs.
Has anyone gotten this working at all? (Even the 1/2 second audio bit)?

I changed the keys, and the new check box appeared. I did not notice any audio, but im not sure when it was expected....I.e. when you change the keys or when u check the tick box. Not sure....
The feature seems to be there, and would love to have this functionality, and to be able to use the bluetooth's mic for recording on the device would also be great, i.e for Voice Commands etc.....

Any developers willing to take on this project?
I'm willing to donate $100 to the first person that comes up with a workable solution!

A tip free of charge:
http://www.pocketkai.net/asp/details.aspx?101
Only in German, probably in English, haven't checked.
Cheers

I dont see how my question and the link you provided are related...

BT Headset patch
I think he meant:-
http://www.pocketkai.net/asp/en/details.aspx?261
But it is device specific....

Yes, in fact I did.
Hope this helps.

Where and how do you locate the directory HKLM\Software|Widcomm|Plugin|Handsfree to make the changes?
Paul_Hammons said:
Here is the magic key, that gets me very close, with a temporary shift of sound to the Jabra 250, then back to the internal speaker. Maybe other headsets can keep the sound transfer or someone can find the next step to get this stable.
HKLM\Software\Widcomm\Plugin\Handsfree
Change AudioPreferences to (3)
Change AudioHandling to (19)
Make sure SupportedFeatures is (55)
What did this change?
Go to Bluetooth Settings, Services, Hands Free, and hit the Advanced button. Notice the whole new checkbox called "Standard Audio" and paragraph about playing music, notifications, etc. on your headset.
My Jabra now is labeled an Audio Gateway in the Bluetooth manager. Still works for phone calls, partners and begins to transmit standard audio with every sound. Just reverts back in internal speaker after 1/2 second of sound or so.
Good luck with the next steps. I noticed there is a AudioGateway device defined in the registry using AudioGateway.dll There is also an BTAudioGateway.dll, but it is not defined anywhere in the registry, maybe this is a key registry setting that is missing.
Click to expand...
Click to collapse

hi
i phurchase the kais patch for bt but its didnt help and not working

It is a registry setting, not a directory. I used Raxco Registry editor for it, but there are many others available.

It appears the problem is missing registry keys. On the PDAPhoneHome.com forums one of the members decompiled the audio gateway DLL and the bluetooth audio DLL and found that they are looking for registry keys that dont exist, namely the contents of HKLM\SOFTWARE\Widcomm\BTConfig\Services\0005 and HKLM\SOFTWARE\Widcomm\BTConfig\Services\0006. The IPAQ and Axims that have this capability already have these keys defined. So the question is, does anyone have a PPC (Not necessarily a Blue Angel or even an HTC) with these keys defined in the registry?

Hi guys
Any updates on this?

yep check this thread

Hissing A2DP in WM6

Thank you for all those superb WM6 upgrades.
I have one prob with all of them though. The Bluetooth A2DP gives a hissing sound. Using the Widdcom drivers or any of the registry improvements does not fix it. Downgrading to WM5 instantly solves the sound probs.
In WM5 changing from joint stereo to dual mono (in the registry) created the same problem, but changing the same entry in the registry does not work for me in WM6 (HTLM/software/microsoft/bluetooth/ad2p/settings/UseJointStereo).
Does WM6 always use dual mono or could something else be the problem?
Any suggestions are very welcome!

Any thoughts or suggestions would be greatly appreciated.
Thanx

Throw away your A2DP stuff buy a USB to 3.5mm converter with microphone and a good pair of wired stereo head phones.

I will definatly buy a converter as soon as I can find one that allows me to charge my phone and use the headphones at the same time.
Still, A2DP was working reasonably well for me on WM5, but it would be a shame to downgrade just for that.
abubasim said:
Throw away your A2DP stuff buy a USB to 3.5mm converter with microphone and a good pair of wired stereo head phones.
Click to expand...
Click to collapse

Something like this maybe?
I'm using this one myself. With the longer wire to the 3.5mm plug it allows me to use my excellent SonyEricsson HPM-70 earplugs and HPM-85 cans.

the hissing sound has been mentioned many many times, search the forum for it.
There are no great solution to it, it depends on the headset, most headsets are not compatible with MS BT-stack
The solution : There are two ways to fix this, and it depends on which headset you are having,
1. You can try changing in the registry (find sleuths (?) post about a2dp fix )
you can also try my reg-fixes: http://forum.xda-developers.com/showthread.php?t=278778
2. You can install the Widcomm stack, (it can go along the ms btstack just fine) but it is not 100% stable and so on, it has absolutly stunning audio quality though.

I did search a lot before posting. It is not easy to find much about it.
Well there is 1 solution, WM5. That is what makes it so strange. WM5 sounds much better than WM6 and/or the Widcomm stack.
I don't understand how everyone keeps talking about the stunning quality of the Widcomm drivers. They sound much worse than the WM5 microsoft BT stack.
I think most of the talk about drop-outs has to do with the headsets. I've tried many of them and only the HTC has a good range and no dropouts (even when connected to my laptop).
cybertron said:
the hissing sound has been mentioned many many times, search the forum for it.
There are no great solution to it, it depends on the headset, most headsets are not compatible with MS BT-stack
The solution : There are two ways to fix this, and it depends on which headset you are having,
1. You can try changing in the registry (find sleuths (?) post about a2dp fix )
you can also try my reg-fixes: http://forum.xda-developers.com/showthread.php?t=278778
2. You can install the Widcomm stack, (it can go along the ms btstack just fine) but it is not 100% stable and so on, it has absolutly stunning audio quality though.
Click to expand...
Click to collapse

well, that is because the widcomm stack is far superier in soundquality than ms. BUT it depends on the headset!
Different headset works better with different stacks!
one must try it out for himself!
What kind of headset do you have?
and wm6 (and ms) is not known for having a good a2dp stack at all. if it works in wm5 then maybe you should stick with wm5 instead of switching. I mean AKU 3.3.1 (or 3.3) is pretty good it is fast and stable, while wm6 is considered "beta"
I can't really think of any specifik features that wm6 offers that I MUST have. But I use it to try it, and I don't mind loosing data or so, and btw. I have a plantronic 260 headset and it is great with Widcomm but one can't stand listenening on it in wm5 or wm6 because of hissing and bad quality (even after all tweaks)

With Sleuths A2DP fix and the manual registry tweaking (HTCtweaker doesn't do it fully), I set bitpool etc to 52 and it sounds pretty nice on the HBH-DS970.
[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Value name=BitPool; Value data=52 (Decimal)
Value name=MaxSupportedBitPool; Value data=52 (Decimal)
Modify, Value name=UseJointStereo; Value data=0 (Decimal, Originally 1)

I tried almost all headsets. I can't remember that the results depended on the headset. All headsets had the same problem with WM6.
I do realize that my standards are probably too high and that no bluetooth will never do it. The Plantronics 260 is one of the few headsets that I didn't try. The 290 was a shock to me. Even wired the sound was absolutly awfull.
Even if the bluetooth is worse than WM5, WM6 has a number of features that are important to me. It is faster and definatly more stable on my phone. Most important however is that it has Voip built-in.
BTW the only headset that does a good job seems to be the HTC headset. It has a very good connection (up to a few meters), no drop-outs and you can connect your own headset to it, so it sounds reasonable. The difference in connection is not just with the HTC phones, but also on my laptop. A huge difference with any other headset I've tried.
cybertron said:
well, that is because the widcomm stack is far superier in soundquality than ms. BUT it depends on the headset!
Different headset works better with different stacks!
one must try it out for himself!
What kind of headset do you have?
and wm6 (and ms) is not known for having a good a2dp stack at all. if it works in wm5 then maybe you should stick with wm5 instead of switching. I mean AKU 3.3.1 (or 3.3) is pretty good it is fast and stable, while wm6 is considered "beta"
I can't really think of any specifik features that wm6 offers that I MUST have. But I use it to try it, and I don't mind loosing data or so, and btw. I have a plantronic 260 headset and it is great with Widcomm but one can't stand listenening on it in wm5 or wm6 because of hissing and bad quality (even after all tweaks)
Click to expand...
Click to collapse

Good 'phones
Have you tried using the audio enhancement feature of htweakc_2.0?
Also, the htc headset is based on the itech clip r35 and itech clip radio, I have the clip radio and it works wonders for a2dp on my TyTn and laptop. The secret is that they both use bluetooth 2.0 class 2 which is a perfect match for the hermes. although I can still hear that hissing on wm5 and 6. I thought they upgraded the bt stack in wm6?
also a good 3.5 mm/usb converter that is coming soon is the one for the p4350 which is a wired remote control/3.5 mm jack
http://www.expansys.com/htc/p_htc_item.aspx?i=145157
or tocharge and listen at the same time you just need a y cable
http://www.expansys.com/htc/p_htc_item.aspx?i=145068

I think I've tried every tweak here, including htweakc. I do not hear any difference. Is the hissing for you the same on WM5 and WM6? For me it is a huge difference (WM5 sounds much much better than any reg. hack or even the Widcomm drivers).
I did also try the itech clip (don't remember the type number) and that had the same great reception as the HTC. The advantage of the HTC is the 3.5 connector for you own headphone. Unfortunately both of them are bluetooth 1.2, which is a slight disadvantage.
The convertor is nice(and I'll probably get one), but I like to listen to music in bed and do not like having the phone under my pillow
computerlove87 said:
Have you tried using the audio enhancement feature of htweakc_2.0?
Also, the htc headset is based on the itech clip r35 and itech clip radio, I have the clip radio and it works wonders for a2dp on my TyTn and laptop. The secret is that they both use bluetooth 2.0 class 2 which is a perfect match for the hermes. although I can still hear that hissing on wm5 and 6. I thought they upgraded the bt stack in wm6?
also a good 3.5 mm/usb converter that is coming soon is the one for the p4350 which is a wired remote control/3.5 mm jack
http://www.expansys.com/htc/p_htc_item.aspx?i=145157
or tocharge and listen at the same time you just need a y cable
http://www.expansys.com/htc/p_htc_item.aspx?i=145068
Click to expand...
Click to collapse

Webhmaster said:
I think I've tried every tweak here, including htweakc. I do not hear any difference. Is the hissing for you the same on WM5 and WM6? For me it is a huge difference (WM5 sounds much much better than any reg. hack or even the Widcomm drivers).
I did also try the itech clip (don't remember the type number) and that had the same great reception as the HTC. The advantage of the HTC is the 3.5 connector for you own headphone. Unfortunately both of them are bluetooth 1.2, which is a slight disadvantage.
The convertor is nice(and I'll probably get one), but I like to listen to music in bed and do not like having the phone under my pillow
Click to expand...
Click to collapse
Did you read my previous post? Did you try to manually edit registry as I wrote? Htweakc doesn't do it correctly.

Yes I did try those tweaks, but they do not change anything at all
As far as I can tell the A2DPfix is aimed at fixing the skipping problem. However when using the HTC headset I have no skipping at all. Not 1 single skip in over an hour listening! I did try the A2DP fix anyway with no result.
On WM5 changing the jointStereo setting to 0 would introduce the same hissing that I hear in WM6. Unfortunatly in WM6 changing from 0 to 1 and back doesn't make any difference.
jompao said:
Did you read my previous post? Did you try to manually edit registry as I wrote? Htweakc doesn't do it correctly.
Click to expand...
Click to collapse

you know, if you are not changing jointstereo in wm5 then you are not using stereo, then you could just use any monoheadset (as the sound would be the same)
jointstereo = 1 = mono (there are hissing, but it is hidden in low quality audio)
jointstereo = 0 = stereo (hissing is more "bad" because it uses twice as much bandwidth )
and all the other tweaks that are out there they work on wm5 ! (remember you have to soft reset your phone after regedit...(and before that you must wait around 15 minutes for wm5/6 to save your changes to rom before reset)
most of the fixes don't make so much changes in wm6 .
but widcomm should give you a real boost, are you sure you are pairing with the widcomm stack (high quality audio setting???)

Jointstereo is definatly not mono. It is the default setting in WM5 and it is indeed different from Dual mono (setting it to 1), but it is not mono.
You can hard reset your device (hold the power button a while) to have the settings written instantly to the rom.
I am sure that I am pairing with the Widcomm stack (high quality audio). It is indeed better, but defiantly not worth all the problems that come with it.
cybertron said:
you know, if you are not changing jointstereo in wm5 then you are not using stereo, then you could just use any monoheadset (as the sound would be the same)
jointstereo = 1 = mono (there are hissing, but it is hidden in low quality audio)
jointstereo = 0 = stereo (hissing is more "bad" because it uses twice as much bandwidth )
and all the other tweaks that are out there they work on wm5 ! (remember you have to soft reset your phone after regedit...(and before that you must wait around 15 minutes for wm5/6 to save your changes to rom before reset)
most of the fixes don't make so much changes in wm6 .
but widcomm should give you a real boost, are you sure you are pairing with the widcomm stack (high quality audio setting???)
Click to expand...
Click to collapse

Just my two cents, I had hissing problem before and it was nothing to do with the Hermes but my headphones needed flashing. It's only for the Motorola HT820...
http://forum.xda-developers.com/showthread.php?t=276406&highlight=ht820+update
But as you say you have tried other headsets I guess this is not the problem
Also there is a guide that might be usefull...
http://forum.xda-developers.com/showthread.php?t=268498&highlight=ht820+update
To be honest I think the sound is great in WM6!

I've tried the Widcomm stack again. The sound improves a bit, though it still sounds like Beyonce has a speaking disorder
Unfortunately there is no hands-free (which is more important to me than audio) and occasional skipping is now introduced

jompao said:
With Sleuths A2DP fix and the manual registry tweaking (HTCtweaker doesn't do it fully), I set bitpool etc to 52 and it sounds pretty nice on the HBH-DS970.
[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Value name=BitPool; Value data=52 (Decimal)
Value name=MaxSupportedBitPool; Value data=52 (Decimal)
Modify, Value name=UseJointStereo; Value data=0 (Decimal, Originally 1)
Click to expand...
Click to collapse
I say damn! This worked totally perfect! At last I can use my Jabra bt620s for music as well.
Earlier I had the skipping prob., later (under WM6) the hissing prob - and now it's just clear pleasure.
Thanks a lot.

laaban said:
I say damn! This worked totally perfect! At last I can use my Jabra bt620s for music as well.
Earlier I had the skipping prob., later (under WM6) the hissing prob - and now it's just clear pleasure.
Thanks a lot.
Click to expand...
Click to collapse
Have you (or anyone else in here) used the Jabra BT320s?? Its the same kind of thing as the HTC clip.?
Im looking for something along them lines but not sure if i want to spend as much on the HTC clip version.

Universal and Jabra BT620s problem

Hi everyone. Not long time ago I bought T-mobile MDA Pro. I guess it's German version since it have QWERTZ keyboard layout.
It has some issues, but it was all software and I fixed it. But I have one problem that I couldn't solve my myself.
I have bluetooth headset Jabra BT620s. Bought it specially for using with my Universal (it's not handy to talk by phone with it in hands). Connected, added as Headset. Everything cool... have to be. But! It plays sound (as headset) this way: 1-2sec playing 30-40 sec silent. I didn't try hands-free because it have no use without listening to music. What had I try:
1. Different ROMS
- WM5 WWE 1.30.77 (if remember number right)
- WM6 J's WWE 2.02.02
- WM6 WWE 2.10.02
ALL ROMs had this issue
2. On every ROM I tried to change "priority" for A2DP (via RegEditor)
One thing helped me. Got broadcomm BT stack application (same was with WM5 ROM, but it seems different version). A2DP worked fine, hands-free too (as you remember I didn't try it without A2DP), BUT(!) all sounds via speakers and headphones (of course, when Jabra was offline) disappeared and my universal becon unresponsive and hanging up often. So I couldn't use it.
Maybe you can help me to solve the problem? Maybe I have to use different BT stack? Or try something with registry? Or... I have no idea.
And, by the way, does anyone knows which broadcom chip is used in Universal? Where can I get all specs (chipset e.t.c.)?
Thanks

Hi,
I had the same problem with my Universal and my Laptop too.
I thought it was a lack of memory problem but trying "light" player nothing changed...
I think that it could be related to pairing problems and the way Jabra BT620s activate BT profiles, because everything got solved restarting Jabra and activating Headset profile before the A2DP.
I solved definitely all the issues with Jabra BT620s using the new firmware with WM6 5.2.1413 and Microsoft Stack (with bitpool set between 30 and 36).
I hope being helpful.
Let me know if you have any interesting tricks...

Hi! Thanks for posting!
I forgot to write that I always trying to activate hands-free firs then headset. And all after powering on Jabra.
Ok. I tried to update firmware of jabra (as topic somwere nearby tells) and connect. Problem persists.
I'm not kinda pro in BT, so tell me what is _bitpool_? And how to set it?
I will google for sometime, of course, but if I won't find that, please, write. Does this mean to mess with registry?

alexkass84 said:
Hi! Thanks for posting!
I forgot to write that I always trying to activate hands-free firs then headset. And all after powering on Jabra.
Ok. I tried to update firmware of jabra (as topic somwere nearby tells) and connect. Problem persists.
I'm not kinda pro in BT, so tell me what is _bitpool_? And how to set it?
I will google for sometime, of course, but if I won't find that, please, write. Does this mean to mess with registry?
Click to expand...
Click to collapse
That is in the Registry. I got the info from somewhere (Sorry cannot remember?) But I copied it to a text file, here it is: [HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Add new dword, Value name=BitPool; Value data=48 (Decimal)
Modify, Value name=UseJointStereo; Value data=0 (Decimal, Originally 1)
For BitPool:
Microsoft suggests the following bitpool values for optimal buffer sizes.
30 - Low audio quality
40 - Medium audio quality
48 - High audio quality
58 - Excellent audio quality
Choosing 48 is adviced.
For UseJointStereo: use 0 instead of 1 else the streaming is done only in mono mode!
(I have a 8525 so AD2P came with it. I never added any entries I just changed the #'s. )

Gonna try it today, when back from work.
I understand that reducing quality gives better stability and performance. But I want true stereo, not joint.
Ideally I want get same sound as I'd have in wired headphones.

I have the same problem with this headset, after 6 hours testing, severals flashings with the best wm5&wm6 roms, i cant make it work!
Please help, i had changed the bitpool from 30 to 60, one up at a time (30,31,32...60) nothing happens.
I heard half sec music and then silence. WTF???

try to use widcomm stack. but the quality of music in mine headset using this stack is not very good. and there are some bugs such as no sound after disconnecting the jabra. if you find some solution, please post it here!

widcomm stack works great, finally after 6+ hours i heard sound from my headset! The sound is pretty good, also when i turn off the headset, the sound playback from the device.
f#ck you M$ with the crapy bt stack, i have lost half day.
Thank you l2tp.

Solved!
It was a bitpool. Little gude:
It was my WM6, so no keys were added.
Use registry editor
[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Value name=BitPool; Value data=48 (Decimal, Originally 30)
Value name=UseJointStereo; Value data=0 (Decimal, Originally 1)
Value name=MaxSupportedBitPool; Value data=500 (Decimail, Originally 30)
As I figured out, MaxSupp is some kind of "cache". When I tried 100, it became laggy after 30-40 minutes. But with 500 2hours played perfectly.
But! Have to solve 2 more problems:
1. Bad connection.
I'm carrying my Uni in bag and when comething getting in the way between bag and my head (i.e. my hand when I taking something form the bag) sound dissapears for 1-2-3 sec. It's not nice.
Maybe I should try widcomm stack? The question is where I can get it and what the type it should be? (don't post please "on widcomm site", give me as widcomm.com, I just can't search for now)
2. It's too quiet.
Wired headphones were pretty louder. Since I using subway 1.5 hours per day you can imagine that without 100% volume I can't hear the music normally.
I put Jabra on 100% and Uni 100% volume. But it like 50% of wired headphones' volume.
Should this be normal (Jabra less quiet), or can I do something?
YES! I know how it works, that Jabra have internal amplifier and BT signal decoder, but...
Of course, I don't wans to dissassemble Jabra and making hard additions to it (unless it will be a kind of volume regulator).
I need that Jabra played for nearly 5 hours. So I can spend attioional power of Jabra (in manual said that It can play for 14 hours, so I can get 195% boost in power).
Thanks everyone participated in this tread.
Argh! The M$ stack gives me creeps. Very unstable. It seems, that my Uni have not BT but some kinda radio transmitter back from WWII! Loosing signal in distance less than meter! I alwayes hated, will hate always M$ corp. OpenSource rules the world!

alexkass84 said:
Solved!
It was a bitpool. Little gude:
It was my WM6, so no keys were added.
Use registry editor
[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Value name=BitPool; Value data=48 (Decimal, Originally 30)
Value name=UseJointStereo; Value data=0 (Decimal, Originally 1)
Value name=MaxSupportedBitPool; Value data=500 (Decimail, Originally 30)
As I figured out, MaxSupp is some kind of "cache". When I tried 100, it became laggy after 30-40 minutes. But with 500 2hours played perfectly.
But! Have to solve 2 more problems:
1. Bad connection.
I'm carrying my Uni in bag and when comething getting in the way between bag and my head (i.e. my hand when I taking something form the bag) sound dissapears for 1-2-3 sec. It's not nice.
Maybe I should try widcomm stack? The question is where I can get it and what the type it should be? (don't post please "on widcomm site", give me as widcomm.com, I just can't search for now)
2. It's too quiet.
Wired headphones were pretty louder. Since I using subway 1.5 hours per day you can imagine that without 100% volume I can't hear the music normally.
I put Jabra on 100% and Uni 100% volume. But it like 50% of wired headphones' volume.
Should this be normal (Jabra less quiet), or can I do something?
YES! I know how it works, that Jabra have internal amplifier and BT signal decoder, but...
Of course, I don't wans to dissassemble Jabra and making hard additions to it (unless it will be a kind of volume regulator).
I need that Jabra played for nearly 5 hours. So I can spend attioional power of Jabra (in manual said that It can play for 14 hours, so I can get 195% boost in power).
Thanks everyone participated in this tread.
Argh! The M$ stack gives me creeps. Very unstable. It seems, that my Uni have not BT but some kinda radio transmitter back from WWII! Loosing signal in distance less than meter! I alwayes hated, will hate always M$ corp. OpenSource rules the world!
Click to expand...
Click to collapse
Suddly or not, MS rules the computers world.
I cant understand why the p3300 works fine with jabra bt620s, and it has wm5.
I am still use broadcomm stack, not only works fine with bt620s, but also better with my gps receiver.
http://rapidshare.com/files/37382412/broadcomm_bt_stack.CAB.html

Thanks alot!
Ahem... On WM5 and shipped BT Broadcomm stack it still has bad connection!

Tweaking Bluetooth Stereo settings?

Wololo,
I tried pairing up my Sony DS-980 stereo bluetooth headset with my Touch Pro 2. That worked flawlessly. I find the new bluetooth interface to be quite good. It has lots of fancy settings in a nice GUI.
BUT
When listening to music, the sound through my headset isn't very good. It sounds compressed and.. mediocre. I know it's not the headset, as it worked fine on my HTC P4350 (after some tweaking in the bitpool, that is).
I used to use Advanced Config for tweaking the bluetooth stereo settings. Apparently our Pro2 uses a new bluetooth stack which is not (yet) configurable through that program. I then tried searching for ways to edit the equivalent of the bitpool for our tp2's widcomm bluetooth stack. An old thread on xda stated 'Line Speed' to be the new 'bitpool' name. But that string is not in my registry. I might try adding it, but I doubt if that will work.
I also found 'Baudrate' as a candidate. but it's set to 4.000.000. That's quite high, in my idea.
Before I mess up my registry with 'playing around', does anyone know what else I can try? And am I the only one experiencing poor sound quality through stereo bluetooth?
Thanks!

Hi,
BT Stack on Rhodium is from Widcomm.
You can find the config in
HKLM\Software\Widcomm
I have not dug through to find ASDP settings, no time at the moment.
Please post back if you find it or not so that I can add them to the tweaks sticky.
Not sure if you have tried this or not, but with my car kit (which support HFP, A2DP and AVRCP I have to activate Stereo Audio on the Rhodium in BT Config, perhaps your headset behaves the same. If I do not audio is ****.
Cheers,
Beasty

OK, I think I got it. The Linespeed value does indeed seem to have an effect. I used this wiki as a guide:
http://wiki.xda-developers.com/inde...h your stereo Bluetooth headphones? Read this!
I used Resco Explorer Registry add-in to add the following DWORD value:
HKLM\Software\WIDCOMM\Plugin\AV\LineSpeed with a value of 320
That seems to do the trick. I'll test it for a bit, but I'm not experiencing drop-outs as of yet and my music sounds much better.
PS I first tried hacking around in the HKLM\Software\WIDCOMM\BTConfig\SerialTransport; increasing baudrate/bytesize values. Don't. Changing stuff breaks the bluetooth

yesterday i tested the a2dp range and it auto reduced quality the further i went. Unfortunately it did not vice-versa.
I'm going to test that reg.
EDIT: Definitely that reg works but it also makes the cpu use heavier and you notice that while using gps software on the car and streaming music. The 528mhz cpu is not powerful enough for this task. After some testing the value is like kb/s, so 272 is the usual for good quality, above that it takes allot of cpu. At the end i removed the reg because the device does the auto quality/cpu usage quite well. The quality is not quite the same has with a fixed value of 272 but barely worst.

Yeah, I noticed the same thing with the distance and quality, which kind of sucks as over time if the signal weakens for what ever reason (which will likely happen over an extended period of time) the audio quality gets worse and worse over time.
Also I have noticed that Audio controls don't seem to work on the TP2 with my BT stereo headphones (Sony DR-BT21G) and seem to play at max volume all the time. Not sure if this is something you guys have noticed as well or if it is specific to my head phones, though they have worked fine with other devices.

if you google it you will find ppl with dell and hp pda that uses/installed widcomm/broadcom stack and "unfortunately" it's a feature. The volume is controlled only by the a2dp receiver.
The linespeed does work but try and use wifi and a2dp at the same time You will get so much skipping :S My best experience is without that reg. Not the best quality but.. You will live with it.
Also it does adjust the "quality" itself. Lowers and uppers. It's just not instant.

anyone figure out the reg settings so it will force the call to use ringtone?

Bluetooth headset volyme, need help

when connecting any "STEREO" headset i can't raise or lower volyme, it's always at max regardless of volyme onscreen.
probably this is due to new bluetooth drivers and hardware.
But if anyone got the same problem or solution plese post it..

smaberg said:
when connecting any "STEREO" headset i can't raise or lower volyme, it's always at max regardless of volyme onscreen.
probably this is due to new bluetooth drivers and hardware.
But if anyone got the same problem or solution plese post it..
Click to expand...
Click to collapse
Woo. U got the Rhodium too??
To answer your question, it's a well known issue w/ Broadcom stack. And there could poping sound issue as well if you have multiple program sending sound together (e.g. A2DP w/ coreplayer + Voice prompt w/ GPS program) <== Can you verify this.
I don't have Rhodium (maybe yet) but my Asus P525 w/ broadcom stack has this problem. Never heard any solution so far.

a2dp
yes, I can confirm the same problem: with A2DP the side keys do not work for volume setting (they set the system volume which is not coupled to the BT volume when having the WidComm stack).
the workaround is to have a media player with separated volume setting like CorePlayer, which works pretty fine for me

that aint the problem, the problem is that every time i connect the stereo headset it sets the volyme to max and i cant lower the volyme by any meens. (yes ive tried about 5 different brands of headsets)

BT vol
what do you mean by "any means" - which controls did you try? the sidekeys will definitely not work, as I stated above. only if the player has a separate volume slider, that'll do something.

terta said:
what do you mean by "any means" - which controls did you try? the sidekeys will definitely not work, as I stated above. only if the player has a separate volume slider, that'll do something.
Click to expand...
Click to collapse
i tried the hardware keys, htc volyme control and built in control of coreplayer.
coreplayers built in volyme works in 1 out of 3 times, and this is tried right after hardreset.

BT vol
well, CorePlayer volume setting works for me always - no matter if I did hardreset or not (and I'm quite a heavy user with Igo, Exchange MailSync, Opera, etc.). CP version is 1.3.2 build 6909.
(and my headset is SonyE. HBH-IS800)

terta said:
yes, I can confirm the same problem: with A2DP the side keys do not work for volume setting (they set the system volume which is not coupled to the BT volume when having the WidComm stack).
the workaround is to have a media player with separated volume setting like CorePlayer, which works pretty fine for me
Click to expand...
Click to collapse
Unfortunately, some stupid program like TomTom, IGO do not has this option...
BTW, do you folks encounter any "poping", or sound distortion issue when multiple programs (e.g. GPS + Coreplayer) trying to play sound together? It would be a deal breaker to me if it does...

distortion
did not have this scenario yet - I use igo in the car where I have a BT handsfree carkit which does not use A2DP. so igo announces everything on the own TP2 speaker, while calls are on the car radio.

jackleung said:
BTW, do you folks encounter any "poping", or sound distortion issue when multiple programs (e.g. GPS + Coreplayer) trying to play sound together? It would be a deal breaker to me if it does...
Click to expand...
Click to collapse
When I use IGO8 and the audiomanager at the same time, the sound works for a while and than stops working. I Have to turn bluetooth of, soft reset and turn everything again. But the same problem happens again. Even trying to use WMP or HTCAlbum to watch videos and listen with a2dp the same problem happens again.
I dont know, but it seems that the bluetooth memory reaches a level and than it stops working. I dont Know. Any Ideas ???
Thanks

I have the same problems. It's really unpleasant !
So, i tried to install Advanced_Configuration_Tool_v3.3 and v3.2 to try configurate control volume, but the program doesn't work on my Rhodium...?!?

I have the same problems. It's really unpleasant !
So, i tried to install Advanced_Configuration_Tool_v3.3 and v3.2 to try configurate control volume, but the program doesn't work on my Rhodium...?!?

I'm using the hbh-is800 and experienced the same problem of not being able to control the volume which seemed to always be at max. this was especially frustrating as i quite like the tf3d player, but was forced to use other players with software volume control.
My makeshift fix was to edit the registry for the default volume of the tf3d player.
\HKLM\Software\HTC\AudioManager_Eng\Config
music_player_volumn default = 100
I lowered it to 30 and after a soft reset the volume on my hbh-is800 is now at a comfortable level.
i still can't change the volume on the fly, but a fixed comfortable volume is better than the original fixed max volume.