Database Users

A2DP for WM5 coming soon...

I'm looking for a way to redirect my TomTom voice instructions from my MDA Vario through my Parrat CK3300 BT carkit sounding on my car-speakersystem by using the bluetooth stack. Now Parrot claims this isn't possible due to a phone limitation. I agree and think it's shortage of Microsoft WM5. Now I've looked up some info about Bluetooth Audio Distribution and found the following:
Advanced Audio Distribution Profile (A2DP)
AKU 2.0 for Windows Mobile 5.0 (for both, Smartphone and Pocket PC), which is expected to be released early next year (2006), will also includes support for the Bluetooth Advanced Audio Distribution Profile profile which is designed to transfer a stereo audio stream like music from the device to a headset or car radio.
A2DP is already implemented into the Samsung SGH-i300 Windows Mobile 2003 Second Edition Smartphone, however this isn't based on Microsoft's A2DP implementation but Samsung added it itself.
(Refer to http://www.theunwired.net/?itemid=2779 for more info concerning this subject.)
So if this article is based on true facts, it means that Microsoft will soon release a patch for all WM5 based devices, which enables them to receive all audio (e.g. TomTom voice instructions) through the bluetooth stack.
Somebody knows more about this subject and if it's true that after having AKU 2.0 installed, you can hear the navigation instructions through your carkit or headset?
Many thanks,
Youri Festen

there is a facility on this forum that will allow you to switch audio to and from the bluetooth, not high quality or stereo but standard quality.

There is ?
Been loking around in the threads for quite a while, but didn't find a replicatable solution...

Here you go

Tried all kind of files, but no go...
All i want is ALL audio over the Carkit (Supertooth2). That is TomTom + Phone.
I don't care if i have to trun of the carkit to return audio to the phone. But i don't want to have to reset or something.
I have a XDA (Himalaya) btw. Still with Rom 1.72 00WWE 15/03/2004 (Ext Rom 1.72.125)
Tried all these :
BA_OEM_AudioGW.CAB
BA_WM5_Voice_Dialer_2.cab
BCHS_FOR_POCKET_PC_OZONE[1].ARMV4.CAB
Broadcom Corporation BT-PPC AV.cab
Broadcom Stack + Switcher + Icon.zip
BroadcomCorp_BT1.0.0.3900.cab
BTAGExtModule-2.zip
btagextmodule.zip
btaudio.zip
MS-BT-107.ARMV4.CAB
SCO settings all BT.txt
voicedial2.rar

whoa it worked
i know im reaching here, but really wanted to try to stream to the new cingular 2125 (aka hct). downloaded and ran the app with my iphono steroe headphones (luv em), got intresting results.
it worked. ran the app, pushed the button on the headphones, got music. call came in, answered (with auto answer) talked, and on hangup it went back to music. however, if i ran another app on the phone such as voice tag in contacts to initiate a call, it brought in the call, but on hangup went back to the speaker. had to run the toggle on again to get headphones working, not elegant - always want more - but im a happy guy til a2dp comes out for mobile 5. thanks!

try looking at this
http://www.pdaphonehome.com/forums/showthread.php?threadid=54951&perpage=20&pagenumber=1
might be what you need

Scollinguk said:
try looking at this
http://www.pdaphonehome.com/forums/showthread.php?threadid=54951&perpage=20&pagenumber=1
might be what you need
Click to expand...
Click to collapse
Try reading and understanding what you read before posting. See the post of dalamario that is the BTAudio on/off tool !
Is this goingt to be anter shout and wild guesses about what file or tool should "really"work ?
I tried all so called "easy" fixes, hell, i've even got a whole dump of my registry, cut through all the BT + Audio and BT + Headset threads, here and on PDAPhonehome, Howardsforum, and the reduced-to-user-bla-bla on pocketPC-club.nl.
And still zilch.....
Ow, and don't think i'm someone who wants easy answers... Think again, i've been around quite a while on PPC forums and the lot....
What i do want/like is usefull answers ans clues on how this BT and Audio stuff works, beut even after reading some on MSDN i can't find a solution yet....
That's why i jumped in on this thread, i'm not going to reinvent the wheel if some allready has the solution: Tomtom and Phone audio over BT
So i'll stop writing now, and continiu searschin for a solution... There must be one...

Sorry mr high horse, wont bother trying to help next time just in case i might not be right, but then if everyone did that no one would answer anything.

The Wizard can do system Audio over bluetooth.
This has been proved with the easy hack that allows you to activiate voice dial using a BT headset.
http://forum.xda-developers.com/viewtopic.php?t=29837
MS Voice Command leaves the Audio Gateway open after initialising, whilst Voice Dialler closes it.
So maybe try installing Voice Command and doing the hack in the above referenced thread, and then see if you can launch Voice command from your car kit. This should leve the gateway open and allow all system sounds to stream to your BT kit until you hit the button again.

jpiek said:
Try reading and understanding what you read before posting.
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Click to collapse
Try keeping Himalaya talk in the Himalaya forum then. Posting questions about devices in the wrong forums just causes confusion.

Scollinguk said:
Sorry mr high horse, wont bother trying to help next time just in case i might not be right, but then if everyone did that no one would answer anything.
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Click to collapse
Not Mr High Horse, but didn't you look at what you where posting ? You should know it linked to the same file, right ? If not, you really would just be 'shouting' ...
It's just that i've been reading XXX threads, and just about everyone comes up with the same, useless, files... Like nowbody really knows how it works and waht should be done to make Audio over BT possible...
We here are all trying real hard for months now, you see....

Just a little patience. Test version of Qtek 9100 ROM with A2DP already exists. It works with I-Phono bt-stereo, for example. So I think it will be released by March.

[CpD said:
bob]Just a little patience. Test version of Qtek 9100 ROM with A2DP already exists. It works with I-Phono bt-stereo, for example. So I think it will be released by March.
Click to expand...
Click to collapse
where is it? i want it! i need it!
ready to test.

Can't share it.

[CpD said:
bob]Can't share it.
Click to expand...
Click to collapse
spoil sport
i won't tell anyone,
got motorola ht850 headphones.
have one question whilst here,
when i am on the underground the headset give a beep to tell me i have no network signal? you may not know the answer but would this over ride the bluetooth stereo signal?
p.s. send me your bank details for the transfer :wink:

[CpD said:
bob]Just a little patience. Test version of Qtek 9100 ROM with A2DP already exists. It works with I-Phono bt-stereo, for example. So I think it will be released by March.
Click to expand...
Click to collapse
Do you think that when it works with I-Phono, it will also offer us the navigation voice instructions through BT-headsets or carkits? Hope so!

Can't test it with car navigator.

if audio streaming is enabled, i would have thought you should be able to hear navigation commands.
i have used the bt audio switch that started this thread to hear tomtom commands through my headset, and it works fine.
saves me explaining to my 84 year old dad why yoda is giving me directions :lol:

aliendad said:
if audio streaming is enabled, i would have thought you should be able to hear navigation commands.
i have used the bt audio switch that started this thread to hear tomtom commands through my headset, and it works fine.
saves me explaining to my 84 year old dad why yoda is giving me directions :lol:
Click to expand...
Click to collapse
It's nice.... I'd really like Tomtom over my carkit... Ohh, the XDA was so much easyer just soldered a Ground and Left/Right channnel into my TomTom/Leadtec connector, and plugged it in to my JVC Front-in line...
I bought the Qtec 2020 because BT seemd so much easyer

08 Altima Bluetooth

We just bought an '08 Altima with the bluetooth option. I can pair the XV6800 with no problem, but quality sucks. It is super choppy on my end and the person on the other end can't hear me at all. I tried my wifes XV6800, same thing. I can pair my old E815 and it works perfectly, so it's not the car. I tried a hard reset, no difference.
I tried loading dcd's clean rom 1.6.7, no difference. Is the BT stack upgraded in this rom?
Is there a newer BT stack out there that I could try?

Its worth downloading and trying the Jetware BT Extensions and see if that helps....but usually it does not change quality so much as enable functionality.
http://www.jetwaremobile.com/
Brad

Thanks for the suggestion, but it didn't help.

Developer help with Infiniti/Nissan Bluetooth?
I've got the exact same issue with an '07 Infiniti G35 w/navigation. I've been doing lots of reading on the xv6800's bluetooth, have tried DCD's and Custel's roms, and was just about to start my own thread, but I'll bet our cars are the same bluetooth/rom wise.
Jetware didn't help me either.
Here's the best fix I've found and it works for me consistently.
-Whence the option's available depending on whether you're dialing out or receiving, click the "use handset" button (transfers call to the xv6800).
-Shortly after press the "phone" button (transfers call back through car).
-Should work as expected after that.
Anyway, at this point I'm hoping one of the kind devs on this forum (DCD or Custel to name just two of many) might find a sec to help us out, although I'm aware and appreciate the fact that many other users are keeping them very busy on their own projects.
I'm assuming the xv6800's hardware would be most similar to other HTC pda phones (not sure what happens between GSM and CDMA devices), so here's a list of their phones who's bluetooth does work with my car (from here). It supports the bluetooth in 144 phones total.
Kaiser (wasn't working with stock rom, but works after this patch from HTC)
Hermes
Atlas
Wizard
Apache
Magician
Harrier
HTC pda phones that don't work with my car (at least not 100%).
Vogue
Elf
Titan
The Titan DOES work with an '07-'08 Infiniti G35 WITHOUT navigation (buy more, get less ).
In addition to the stock Verizon rom I've tried DCD's 1.6.1, 1.6.7, and Custel's 1.1 with no change in the symptoms.
It's my understanding the dev community thinks modding the Vogue's bluetooth for the Titan shows the most promise. I found this thread mentioning an alternative, but it seems to have gone stale on another forum. I'd prefer not to use that forum.
I understand the Vogue's bluetooth might show the most promise for general bluetooth applications (which would satisfy the most users), but becuase I plan to use bluetooth solely through this car, does anyone know if I might be able to go an easier route given the information I've provided?
I'm using radio 1.40.00, could 1.47.01 make a difference?
Can anything be learned through HTC's Kaiser update patch?
Are there any bluetooth alternatives being tested that I haven't found?
Thanks for any help anyone can provide.

OK. I tried what you said and confirm the same results on the '08 Altima. If I switch to handset and back to Bluetooth, the sound is clear (weird). The only problem is, I can't switch until a call is in progress. This is a work around, but not a good one. We need a BT stack that fixes this. Or maybe firmware upgrade from the auto manufacturer.

I know this is going to sounds like a cheap shot, but it sounds to me like something needs to be fixed on Nissan's side. I've tried mine in an Accura without any problem, however both of your stereos are manufactured by Nissan.
A word of advice: I always found that auto makers should stick to what they do- namely, make cars. If Nissan were so great at BT stereos, you'd see nissan headsets.
I never bother with factory Bluetooth anymore- I swapped my stereo right away for a decent Sony Xplod system that supports A2DP (wireless stereo) as well as phone calls. The aftermarket stereo not only sounds great, but I play all my music from my phone without taking it out of my pocket. Last I checked, no stock car stereos supported this. Sony is good at stereo and bluetooth (been around the block a few times).
Complain to Nissan. Or swap your stereo for something decent.

My Sprint 6700 with BigJ Rom works great with the 08 Altima. In the fact the audio quality is better than the Sanyo Katana that I also have paired. I am dispointed that I cannt answer calls from both phones on the car headset without first selecting the phone that has an incoming call. Even my At&T home phone with bluetooth can do that although it does require you to select a cellphone for outgoing calls.
I was able to upload a contact entry from my 6700 to the car Download phonebook. However, I can not get that into the more usable phonebook directory. Anyone succeed in doing that?

shannl said:
My Sprint 6700 with BigJ Rom works great with the 08 Altima.
Click to expand...
Click to collapse
You might be in the wrong forum. The Titan is a 6800, not a 6700.

yes, but this thread is discussing the Altima BT stereo. Truthfully, this whole thread should go in a more general BT forum, since I don't think it pertains to the 6800 exactly.

08 altima bluetooth
Just wanted to say thanks to Park City for posting the name of the web site with the bluetooth extentions (jetwaremobile.com). I have just recently purchased an 08 Altima with the Nav system and bluetooth. I have an Tmobile MDA with a cooked ROM running WM6 and I could not get the entire outlook phone book to download to the car. Once I installed the jetware mobile extentions everything worked just fine. I even got some additional functionality I was not expecting like signal strengh and battery status on the nav srceen. As for voice quality, it's never been an issue for me. So far anyway

As I can see, they are currently testing the Mogul with both of your cars. I don't know what they mean by 'testing', but that's what is going on right now.
http://www.nissanusa.com/bluetooth/...gation+System&mfg=All+Manufacturers&x=51&y=16
http://www.infiniti.com/bluetooth/t...igation+System&mfg=All+Manufacturers&x=42&y=9

arcanecho said:
As I can see, they are currently testing the Mogul with both of your cars.
Click to expand...
Click to collapse
I saw that too, but I don't have a lot of confidence they'll be releasing a bluetooth update any time soon. That's why I was hoping the Titan's bluetooth hardware might be similar enough to the hardware in one of the devices that DO work with our cars (Kaiser, etc., list in my earlier post) that their bluetooth software could be ported "easily" to the Titan. I'm sure the devs here are trying to get the Titan's bluetooth to work as well as possible for everyone's devices, which makes sense. However, with California's new "handsfree driving" law starting July '08, I'm only concerned with getting the Titan to work with my car.
Apparently no one's too sure if that's possible.

1. have any of you verified first hand that the kaiser does in fact work?
2. could someone research and identify the bt hardware in the kaiser, and the titan?
3. has anyone run the kaiser bt fix on their titan and tried it?
i suppose i never thought to look at the kaiser's bt. mine still functions after applying that kaiser patch..
the kaiser patch is a replacement TIInit_4_2_38.bts file
this file did not exist in any titan roms prior to 2.16
2.16 introduced this file (i compared md5 and its not the same data)
2.17, htcs supposed 'fix', does NOT contain this file
all vogue roms i have seen DO contain this file, but again its different data
maybe you guys are on to something
i will throw something together tomorrow probably...drinking time.

dcd, thanks for the help, enjoy those drinks!
1. Not first hand, I'm going off this post. That thread's also why I believe the Kaiser wasn't working with the car before the patch.
2. I've spent a lot of time trying, but have come up empty on any detailed hardware specs.
3. I just ran the Kaiser patch and the bluetooth functions the same as it does without the patch.
I'm using a rom from your 1.6.7 kitchen with nothing else added (rom's working great, btw). I had the same issue with the stock Verizon rom.
Crazy thought, but if the cooked rom I'm using is based on a stock rom that didn't originally include the .bts file (2.17), could it be being ignored?

FZ1 said:
this post
Click to expand...
Click to collapse
good enough for me
Crazy thought, but if the cooked rom I'm using is based on a stock rom that didn't originally include the .bts file (2.17), could it be being ignored?
Click to expand...
Click to collapse
maybe...i dont know how the file functions and ties into the others yet
FZ1 said:
The Titan DOES work with an '07-'08 Infiniti G35 WITHOUT navigation (buy more, get less ).
Click to expand...
Click to collapse
i take it they are completely different head units?

I have a 07 G35 WITH Navi and yes, the quality is choppy when I connect my phone to it. I have been just using my Platronics Discover 640 for the BT these days... It'd be nice if someone can come up with a solution for this...

dcd1182 said:
i take it they are completely different head units?
Click to expand...
Click to collapse
They're pretty different. With nav you get a 10 gig hd it'll rip cd's to, the nav runs off that hd, the gui which controls much of the car is different, voice prompts are different, the available buttons are different (see attached pics), and you lose a cd changer. I do know first hand that w/o nav the bt works great with an XV6800 (got a loaner once). Again, I've been unable to find out what's specifically different hardware wise (even with the full service manual).
riDuh7 said:
I have a 07 G35 WITH Navi and yes, the quality is choppy when I connect my phone to it.
Click to expand...
Click to collapse
Is choppy quality your only problem? Are your symptoms different from ours in my earlier post?

FZ1 said:
They're pretty different. With nav you get a 10 gig hd it'll rip cd's to, the nav runs off that hd, the gui which controls much of the car is different, voice prompts are different, the available buttons are different (see attached pics), and you lose a cd changer. I do know first hand that w/o nav the bt works great with an XV6800 (got a loaner once). Again, I've been unable to find out what's specifically different hardware wise (even with the full service manual).
Is choppy quality your only problem? Are your symptoms different from ours in my earlier post?
Click to expand...
Click to collapse
Once connected, I get a really static noise from my end while in the conversation. Of course, it'a really not usable at all....
I'm going to try the reconnecting method that was mentioned above today. I'll come back and report the outcome. And thanks for the help BTW.
EDIT: BTW, my Wizard (Cingy 8125), Hermes (Cingy 8525), Samsung i760, and few of the Moto handsets are all fine paired to my car. MAYBE, someone can get the BT stack from Hermes to work with the Titan?

FZ1 said:
They're pretty different. With nav you get a 10 gig hd it'll rip cd's to
Click to expand...
Click to collapse
whoa, someone hook me up with a G35 to uh, test
Wizard (Cingy 8125), Hermes (Cingy 8525), Samsung i760, and few of the Moto handsets are all fine paired to my car. MAYBE, someone can get the BT stack from Hermes to work with the Titan?
Click to expand...
Click to collapse
well, peices of it maybe. i would blindly guess that the kaiser is closer to titan than hermes, but we need to exactly identify the bt chip in each. plus its still shady then, ie the kaiser has tnetw1251 for wlan same as the titan and I cannot get their newer wlan driver to work on my device.
what we really need to look at is previous bt stack modifications for other devices. i need a better understanding of tiinit_blah. I've also noticed that the devices that work have a more extensive, or a 2nd audiopara file that sets values for some bt devices. to be completely honest right now i dont know what im looking at and i need to figure out how it all fits together before i know where to start.

Well, I tried reconnect method from both phone and the car, but neither did anything at all. The quality is still crappy as heck. Man... I reallly wish this works.
EDIT: Actually my side of the speaker was complete static, and the other side could not hear what I was saying AT ALL. This efing blows.

Improve sound quality via BT A2DP

Does anybody know how to improve sound quality for playing music over A2DP profile with Parrot handsfree? On Rhodium i applied some tweaks for quality improve and it was clear and nice to listen, but Leo is not so nice to hear
Thx a lot

I had to tweak my diamond too, looked for tweaks on the HD2 but couldnt find them, but the sound quality is way better on my HD2. I dont think it needs the tweeks tbh.

If i take both, TP2 and HD2 to my car, let play the same song and im switching between HTC's then has got TP2 much more clear and brilliant sound, without any quiet cracklings from tweeter speaker like it is on HD2 :-(

Same problem here, sound quality for a2dp is not what it should be. I tried adding the LineSpeed registry setting, it did improve the overall quality, but did not remove the cracking noise - and in my case I still have frequent skipping and gaps in the audio playback. Have not yet had a reply for Tech Support, and if/when I do, I don't think it'll be a very intelligable one...

Yop, i think too, that the answer will be unusable, or maybe they tell you that u should do a Hard rst :-D
First time i connected it to HF and let music play i thought that is a bad quality song, but it isn't :-(
Anyone idea?

I know there are some settings to definately improve the sound of A2DP. I've added them on my previous HD, and worked perfectly after that! I just found some things you might try (I just applied them myself as well, but havent tested them yet; I'm almost sure they'll work):
http://forum.xda-developers.com/showthread.php?t=308752&highlight=A2DP+settings+bitpool
If I'll find the previost post which I applied in the past on my HD, I'll let you know. If the one I just posted will work, I'll let you know as well of course, because the litteral and figural crappy sound of A2DP is something I hate as well...
Edit:
Take a look at those settings as well from J-A-J-O at page 6:
http://forum.xda-developers.com/showthread.php?p=1677577#post1677577
Again, I don't know exactly if it were those settings, but they sound familiar to me. I'm also busy trying to get the best sound quality via bluetooth out of my HD2
More info about the settings:
http://forum.xda-developers.com/showthread.php?t=310438
Kind regards,
GreenFrog

The XDA tweaks are rubbish and do not work. I currently have a call out with HTC.
I have removed all reg tweaks from my HTC and now can get A2DP working on my parrot ONLY in the following situation:-
(1) Reboot HD2 (hold end key and select off. then switch on)
(2) Allow to connect to Parrott (will connect handsfree first)
(3) Open bluetooth from settings and select stereo audio and select connect.
(4) select handsfree and select disconnect.
(5) Press PLAY on the parrott kit
By doing this I get no skipping at all and the quality is good. I have no tweaks running.
This is obv crap and is why I have been speaking to HTC all week.
Steps 1-5 have to be strictly followed for this to work.
The BT tweaks mentioned on this forum do not work. They only appear to work as you have rebooted. After using the HD2 for a while and then connecting A2DP, skipping will occur again.
Try steps above and it will work.

Interesting! I'll try that on mine. Greenfrog all of those links and bitpool settings relate to the Microsoft Bluetooth stack. However the HD2 uses the Widcomm stack so those registry settings can't be made.
I too am fed up of the bluetooth sound quality. How can they assume we'll be happy with this mediocre sound?! I can't see why with a 1Ghz processor it skips.
Have you guys tried the A2DP with the latest 1.61 ROM? I'm still on 1.43....
When I find my 'goldcard' that I made I'll try it on 1.61 and let you know
We'll get there in the end....this is really my only bugbear with the HD2, so it would be good to get it fixed!!!

There got to be a way!
I, too, am really p***ed off by the bad audio quality i get using stereo blutooth. It's really an issue with the HTC HD2 and apparently no pro reviews pointed it out!!! I use it with the sony DR-50 which are one the best A2DP headphones out there, but the sound is horrible Please help...

I'm too suffering from the A2DP situation...
The Linespeed registry hack helps me on some devices ( HKML\Software\Widcomm\Plugins\AV add DWORD Linespeed with value between 64 and 512, the higher the better sound but higher probabilty for skipping).
With Linespeed = 320 sound is great and I have no skipping with a Sony DR-BT160AS. But: My Motorola S9 badly skips unless I have it very close to the HD2. Linespeed = 256 is working ok with both devices...
BUT:
I also have a blueLino A2DP Receiver which has a bad quality on both settings, at least on some songs. That's really disturbing.

Just a quick update, I've just flashed to 1.61 and it makes no difference. Default A2DP sound quality is unacceptable. Grr

purnelld said:
The XDA tweaks are rubbish and do not work. I currently have a call out with HTC.
....
The BT tweaks mentioned on this forum do not work. They only appear to work as you have rebooted. After using the HD2 for a while and then connecting A2DP, skipping will occur again.
Try steps above and it will work.
Click to expand...
Click to collapse
-----------------------------------------------------
Well, first I have to say I don't have the 'skipping' issue at all. I have my HD2 connected via bluetooth to my Pioneer DEH-P7100BT car radio. I have a clear connection when calling, but when playing music via bluetooth, I have the 'hissing' issue.
Next is that I have to admit that when I changed the settings according to my previous solution, did work a little, but not as it supposed to. When I had my previous Touch HD if found a link which worked perferctly for me! When I changed to those settings, the hissing were gone completely and the sound quality improved to CD level. Although, I'm still searching those ones again for my HD2 at the moment....
So, conclusion this far is that it totally depends on the hardware which you are connected to as well.
Regards,
GreenFrog

@Greenfrog:
I guess the bitpool settings which worked well on my HD as well, only work when using the MS Bluetooth stack. The HD2 uses the WIDCOMM Bluetooth stack, I haven't found a noticable difference.
The LineSpeed registry setting does improve overall audio quality, but I still have skipping and playback gaps. Very poor performance for the performance beast the HD2 is. I urge everyone to report this to HTC (I did) - this is really unacceptable.

I will also report this to HTC. I am so frustrated by it tbh

As Moses posted...I had linespeed set up on my TP2 and the sound was great, but now i have no time to test it now, can someone other test regitry key?
Bluetooth settings
Can be found here HKLM\Software\WIDCOMM\
A2DP Tweak Provided by R_phAn (Please note this will not work with all devices)
As we know from the past, each device has it's own preferences and capabilities (So you'll have to play around)
Managed to improve soundquality by adding DWORD 'LineSpeed' to HKLM\Software\WIDCOMM\Plugin\AV\ with a value of 320.
it is posted here for TouchPro2: http://forum.xda-developers.com/showthread.php?t=524655
Edit: I tryied it tomorrow morning and it is still the horrible quality, poor music quality and during the call skipping :-/

jonboyuk said:
...all of those links and bitpool settings relate to the Microsoft Bluetooth stack. However the HD2 uses the Widcomm stack so those registry settings can't be made.
Have you guys tried the A2DP with the latest 1.61 ROM? I'm still on 1.43....
When I find my 'goldcard' that I made I'll try it on 1.61 and let you know
We'll get there in the end....this is really my only bugbear with the HD2, so it would be good to get it fixed!!!
Click to expand...
Click to collapse
Okay, thanks a lot for this update! I was really unaware about the different stack, so I don't have to look further for the the previous links anymore... I'll try to add linespeed as well to see if it works with my Pioneer car radio. I hope it will...
There should be an answer for sure for this issue. I also cannot understand why it have to be this difficult. The previous solution did work very well. Why have they changed to the other stack anyway? Does someone know that?
I'm running the 1.48 ROM btw.
GreenFrog

I found one thing, i'm using SPB Radio for online streaming, when im listening in my car streamed radio then the sound quality is excelent...? How is that possible?

That's a very good question.
I experimented a bit with different quality settings during mp3 encoding. I found out that there indeed is a connection between the quality settings of the mp3 file and the badness of the sound quality, at least to a specific degree.
The most important setting seemed to be the stereo setting. If I set a song to "Joint Stereo" its by far better than normal stereo, although not perfect, yet. That's very confusing.
Do you know the settings of the radio channels you can stream with good quality? Maybe that would be worth a test.

--Update--
So I had a predictably useless response from HTC. Namely 'have you tried unpairing and repairing' and 'your device may not be fully compatible, please check our website for a list of compatible devices'.
Useless indeed. Their compatible devices amount to 3 items! The phone is either A2DP or it isn't. There are no compatibility options - it's happening to us all.
So, I haven't mustered up the energy to continue onto the next pointless exchange of basic trial and error possibilities. No doubt their next reply will be "have you tried rebooting the phone"...
Anyway, I digress. I noticed something today. I put on a new album to my SD card and out of nowhere the skipping was worse than ever. Audiomanager is always on the lookout for new songs as you may have realised. When you have music playing, a small circle rotates to show the player is searching. During searches whether or not you've introduced new mp3's to your device, it always makes the skipping far worse. When my circle had come to a stop, then the audio was fine....with very rare pauses and skips.
Still there but much less obvious.
Well that's my latest update and I will continue my investigation. I wonder if this skipping occurs in other music programs? ie wmp or pocket player? Has anyone tried?

Great work, guys. Nice to see a lot of people looking for a solution. I REALLY want to get this A2DP thing working right, it is bugging me a lot, and I'd like it to be fixed when I'm going on vacation (I'll be driving to two straight days, and would love to listen to my own music then). That'll be in about six weeks, so there's still some time left.
I'll try SPB radio myself, see if that causes the same amount of skipping. It could be that it is not the BT link causing the skipping and pauzes, but the audiomanager itself. That would be a bummer, because fixing that is probably way beyond what we can do here, and we'll have to hope for a HTC fix or a custom rom with an older and better working version of the audiomanager.
In my search for possible solutions, I found the priority of the A2DP can be altered. I've added the reg Dword value "Priority256" to HKLM/Drivers/BuiltIn/BtA2dpSnd, with different values. If the value is too high (150+), nothing changes. Set it too low - I tried 60 - and BlueTooth fails to start altogether. I've now set it 149, and it seemed to work, but haven't done extensive testing to see if the skips/pauzes don't return. Will get back on that.
jonboyuk said:
--Update--
(...)
I wonder if this skipping occurs in other music programs? ie wmp or pocket player? Has anyone tried?
Click to expand...
Click to collapse
I've tried PocketMusic, qualitywise no difference. I don't remember if it had the same skipping / pauzes problem, but the problem for me was it doesn't work with the AVRCP, so I can't play/pauze/ff/rew with my remote, and having to use the screen while driving is a pain - I've mounted my device quite high. I was really hoping to use the inbuilt musicplayer

Bluetooth A2DP issues w/ 2.1

So, I have searched all over these forums, and cannot find a difinitive answer or solution. I have problems with A2DP when connecting w/ the BT in my car, since installing a 2.1 ROM (currently DC 2.09.01). When connected, the music plays about twice as fast as it should, then slows down, then speeds up again. Conversley, Android 1.5 worked fine. There has been a lot of talk of BT issues, but it doesn't appear there are any solutions. Am I correct, or has someone found a solution? THanks.

ZenEXP works if you dont mind switching.

I have had those problems occasionally with all 2.1 ROMs I have tried. Usually, if I pause and then unpause it solves the problem. Sometimes I have to do it more than once.
I'm currently running ZenEXP and I've had the problem a few times, but it has been significantly less than with other ROMs. However, AVRCP hasn't been working with ZenEXP, whereas it has worked on other 2.1 ROMs, such as DC.

So, with the unrooted stock Sprint 2.1 software, A2DP works?

The Darchdroid ROM actually fixes this problem! I had the exact same problem as you with playing audio in my 2010 Mazda 3 and Darchstar's ROM fixed it for me, it's the only ROM I have found so far that fixes the bluetooth

I have a problem with my bluetooth headset when I'm playing music, the music stutters alot, I almost have to hold my phone a certain way with very little movement in order for it to play decently. Any solutions on that problem?

I have a problem with my bluetooth headset when I'm playing music, the music stutters alot, I almost have to hold my phone a certain way with very little movement in order for it to play decently. Any solutions on that problem?
Click to expand...
Click to collapse
Turn off/disconnect headset while playing music fixes studdering for me in settings under bluetooth for the connected device. Disconnect the ' phone' while playing. Haven't really tested this on anything but my kenwood head unit.
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Sent via the XDA Tapatalk App

here's a reply I received from HTC support:
Hello, I understand that you have had issues with your bluetooth since the update for your Hero. With the update, the entire bluetooth stack was updated, and thus some bluetooth devices that previously worked are unfortunately no longer compatible. While we have not heard any information about nor made announcements about any upcoming patches to address this, it is not at all out of the realm of possibility. Otherwise, you may want to try a different bluetooth headset. I do apologize for any inconvenience you may have experienced. If you have any other questions, feel free to contact us again. You can find additional support at support forums at community.htc.com. There is also a customer satisfaction survey for you to take if you are interested. Philip HTC Technical Support www.htc.com www.twitter.com/htc

Bluetooth Stack?
So is it possible for one of the developers on this site to rewrite the bluetooth stack or copy the old one from 1.5 that worked?
I have a Panasonic TH12 bluetooth home phone that worked fine before 2.1. I recently bought an AT&T bluetooth phone and it does the same thing. Will pair but not connect.

aschlect said:
Hello, I understand that you have had issues with your bluetooth since the update for your Hero. With the update, the entire bluetooth stack was updated, and thus some bluetooth devices that previously worked are unfortunately no longer compatible. While we have not heard any information about nor made announcements about any upcoming patches to address this, it is not at all out of the realm of possibility. Otherwise, you may want to try a different bluetooth headset. I do apologize for any inconvenience you may have experienced. If you have any other questions, feel free to contact us again. You can find additional support at support forums at community.htc.com. There is also a customer satisfaction survey for you to take if you are interested. Philip HTC Technical Support www.htc.com www.twitter.com/htc
Click to expand...
Click to collapse
I have to call BS on this. (Not on the post, on the reply)
Why would any company not support legacy hardware as simple as Bluetooth. Especially since most devices aren't even Bluetooth v3/v4 standard yet. And Bluetooth 2.1 is 1. Not very old and 2. What 90% of Bluetooth device still manufactured are! and its been around since 2006!
I honestly can't believe a company is going to just say "Oh its to old" instead of fixing their crap. as far as I know v3/v4 is fully backwards compatible to 2.1 because they include "Classic Bluetooth" protocols!
Not to mention I doubt the hardware in our phone is even capable of v4 stuff. I'll have to do some more research on what BT chip is in the phone. Utter BS.
Either Phillip or HTC is a moron.

CDMA Hero Specs for BT:
Supported Profiles: HSP 1.1, HFP 1.5, A2DP, AVRC, (OPP, PBA)
version 2.0+EDR / possibly upgradeable to 2.1+EDR, plus OPP and PBA profiles
2.1 FULLY backwards compatible to v1. Meaning HTC built the crappiest BT Stack allowable by law to say it includes it. May as well have not bothered.
Someone could probably redo things with AOSP and a newer bluez stack.

Kcarpenter said:
<snip>
2.1 FULLY backwards compatible to v1. Meaning HTC built the crappiest BT Stack allowable by law to say it includes it. May as well have not bothered.
Someone could probably redo things with AOSP and a newer bluez stack.
Click to expand...
Click to collapse
Yeah, I just bought a BT USB adapter so I could exchange files and synch and stuff. I got it to work ONE time and all it did was pass 200 of my contacts to my phone from my PC. Like it was just waiting to upchuck on me. After that, nothing.
There's three hours of my life and $8.99 I'll never get back.

Bluetooth is pretty much the #1 complaint that users have been posting on the Sprint Community Forums (here's the HTC Hero section). Nearly all of those complaints say that Bluetooth now doesn't work at all or just plain sucks on the stock 2.1 Sprint/HTC release. Which probably also means that any ROM here based on 2.1 stock will also suck it up bad with Bluetooth compatibility. Known problem, no one has done anything about it yet. It sounds like AOSP ROMs don't have this issue, so at least that's good.

[dev request] a2dp

Hey everybody,
I hope this can start a bigger awareness/activity on the goal to get a usable bluetooth audio protocol with Android on the HD2.
The Story
There hardly ever are threads or posts adressing this, which I can not understand. For me personally this is one of the 5 most important features in my handset. For example I can live very well with having to reset my 3G connection from time to time, but I can not stand having no A2DP. (I loved how WinMo does this on the HD2, fading down the music to make navigational instructions understandable. before you ask: after having android I simply dont want to go back to WinMo... it would make me sad.)
The Problem
As of what I know, A2DP sound quality ist directly linked to something in the Kernels. Until Hastarin 4.x the sound was beyond ****ty, but then there was an improvement, though it was not mentioned in Hastarins changelog. Was it an accidental improvement?
Anyway, since then the sound quality has been on the same level, being kind of working, but with an awful weird overweight on low frequncy tones. This can not be leveld out by the amps of any of my receiving devices.
Since bluetooth pairing works so well, and the A2DP transfer essentially works, i hope that it can not be the biggest issue to get the quality straight. -for a dev or cook, I mean
Please start a lively and constructive discussion! Now! Find a fix, and be sure that my donation will buy your next beers/organic lemonades/what ever you're in to.

I dont know what are you talking about..I use A2DP every day with great sound quality..It would have been useful if you posted your configuration on the device, Rom, Kernel, Build, and Bluetooth headset so we could maybe try to help you out..
I use:
WM ChuckyDroid
Build is NexusHD2-FRG83_V1.5 with both Hastarin r7.7 and michyprima R11
Bluetooth headset: Plantronics p590 (quite an old one but works great)
Everything works great..please be more specific about your problem
Cheers

I use A2DP on a daily basis as well and it works flawlessly on ever build I have tried

Are you you kidding me?
Since i tried a lot of ROM/Radio/Kernel combinations i thought this made no difference... I was quite sure this must be a development problem.
right now I use:
WinMo CleanEx Rom
Radio 2.14
Mdeejay evo sense 2.3 with Hastarin r7.9
Bevore that I mainly used a Dutty ROM and the MattC sense v1.8 with basically every Hastarin Kernel.
I've testet it every time on two different A2DP enabled stereos, and as described the sound quality is poor.
Can others confiirm having a good (or bad) sound quality over bluetooth?

Zero issues on the ones I've tested.
Sent from my HTC HD2 MIUI using XDA App

right now I use:
WinMo CleanEx Rom
Radio 2.14
Mdeejay evo sense 2.3 with Hastarin r7.9
Click to expand...
Click to collapse
Wich bluetooth device you are using?

Devices
Maybe you and everyone should post their devices to see if that is the issue. I have a plantronics 510. It works perfect in WM but doesn't even show an a2dp profile in any android build. I would love to have crappy quality if I could even connect.
BTW: what is a good working headset that is confirmed to work with android bluetooth a2dp?

Yes, the quality is quite low on A2DP. Tested on my SE HBH-DS200. That headset is superb in WinMo.
Mine: Miri19.1/2.15/FroyoStone3.2-Hastarin7.7

Hunterok said:
Wich bluetooth device you are using?
Click to expand...
Click to collapse
I use a Fujitsu Siemens BS01R on my home stereo and a Sony MEX-BT 2800 in my car. Both worked perfectly well with WinMo.

I currently use Darstone Froyo Sense, r8 kernel, with Motorola H17 and have zero BT issues or quality issues.

Duwenbasden said:
Yes, the quality is quite low on A2DP. Tested on my SE HBH-DS200. That headset is superb in WinMo.
Mine: Miri19.1/2.15/FroyoStone3.2-Hastarin7.7
Click to expand...
Click to collapse
I have same headset and get excellent quality in Calls as well as A2DP. Calls may also vary due to network cond so I dont pay much attention to that one.
I am on m-deejay DHD 3.7 with my VBN Reloaded2 Alt ROM

cartonneexpress said:
I use a Fujitsu Siemens BS01R on my home stereo and a Sony MEX-BT 2800 in my car. Both worked perfectly well with WinMo.
Click to expand...
Click to collapse
I have a Sony MEX-BT2800 cd receiver in my 2007 Volkswagen Jetta which I stream to and the sound is crystal clear
I dunno...maybe has to do with the Winmo ROM?
My exact setup is in my signature...the only thing that I may use that would be different than most is I use Lithium as my media player. I dont know if the media player may have something to do with it

Bluetooth A2DP
A2DP is a bag of different codecs from decent to bad. All Bluetooth devices that support are only required to support the minimum codec (not very good). Better ones including AAC and Apt-X are available but cost a bunch for a device mfr to include. Some phones, like iPhone have a lousy codec (possibly updated in the next ios release), others, like Nokia, seem pretty good. The tubby bass is a signature of the minimum codec. I don't know if the codec can be added through the OS since it lives in the BT chip. If you have good stuff in the phone it doesn't help at the speaker/headphone end if they don't have it as well.
We should also push to make sure that AVRCP profile is also supported so we have remote control (missing in iPhone until recently).