Database Users

Poor BT Stereo (A2DP) quality?

I use a no brand Stereo BT headset on the Atom and found the quality is unacceptable poor. I just want to confirm if it's just me or it's a common problem for Atom.

I found the BT stereo quality very poor too. Tried
1. i-Tech S35
2. Gobalsat BT-830 (apart from stop/pause, AVRCP works fine with WM 10)
3. Nokia HS-12W (apart from stop/pause, AVRCP works fine with WM 10)
quality is way worser compared with the original headphone that came with Atom. I read somewhere this was due to the poor audio chipset used in Atom. Any way to fix that?
BTW, all the above 3 Bluetooth stereo headsets have excellent audio output when listening music from PC (using Widcomm 4.0.1.2800).

I believe it was due to the BT version used. I too tried
1. i-Tech R35 (V1.2)
2. Nokia HS-12W (V2.0)
When pairing both of them with Atom, the sound quality is not that good (always got hissing sound). The same applies when I use the i-Tech headset with my 818pro.
On the other hand, when I use the Nokia headset with 818pro (A2DP enabled), the quality becomes quite good (no significant difference from wired headsets). BTW, I think the Moto BT headset supports V2.0 too, and seems ppl around got some good experience with it and 818pro.
As I mainly use my Atom nowadays (my 818pro got the screen misalignment problem unfortunately), I already forgot about BT headsets.

From all you guys comments, I am not alone in having poor A2DP quality. It's a shame for giving out A2DP but unacceptable quality. :evil:

I-tech S35
Thanks so much for that information. I was really tempted to "upgrade" to an Atom from my Mini because the former had the built in bluetooth so it's a good thing to know I shouldn't upgrade because I was really after the A2DP functionality (since I thought the full release a2dp would be much better than the mini's "hacked" a2dp).

Maybe the stack used on the Atom is not that good. Have you tried upgrading the ROM?

[email protected]
what are u guys sayin ?
the quality of A2DP in my Atom (last ROM upgrade) is excellent !
and i do know how to appreciate the quality, cause i came from a V3x (quality was amazing too).
i am using the motorola HT-820.
the sound is much better than my crappy ipod video (to sell if someone interested) :arrow:
to fix ur problems, u should :
1- upgrade to the latest rom.
2- turn the crappy equalizer off (its a really useless feature)
3- when u go to bluetooth settings, hold ur bluetooth device and '' set as wireless stereo''
that may be the key for clearer sound.
also i didnt like the equalizer (am i alone ?) i found that the speakers are worse than ever.
what do u guys think? :arrow:

Re: [email protected]
goldsaint said:
what are u guys sayin ?
the quality of A2DP in my Atom (last ROM upgrade) is excellent !
and i do know how to appreciate the quality, cause i came from a V3x (quality was amazing too).
i am using the motorola HT-820.
the sound is much better than my crappy ipod video (to sell if someone interested) :arrow:
to fix ur problems, u should :
1- upgrade to the latest rom.
2- turn the crappy equalizer off (its a really useless feature)
3- when u go to bluetooth settings, hold ur bluetooth device and '' set as wireless stereo''
that may be the key for clearer sound.
also i didnt like the equalizer (am i alone ?) i found that the speakers are worse than ever.
what do u guys think? :arrow:
Click to expand...
Click to collapse
How's it compared with the using the original headset came with your Atom? For me, bluetooth A2DP is way worse.
I used the same i-Tech clip S35 on XDA 2i, and the A2DP qualitiy is as good as the wired headset came with XDA 2i.
Thanks.

Wired vs Wireless
ok, with the regular wired stereo headset the sound is Ok, but not that good if i compare to my ipod video.
i highly prefer the a2dp system as it seems ur inside a nightclub while using it.
but if i have to choose between the wired headsets or the HT820, i would rather go with the BT headset.
the only thing, is that dangerous for life ? (like getting brain cancer etc... wish not..)

As I mentioned before, I have tested all the combinations for 818pro, Atom (both with latest rom) and two BT headsets i-Tech R35 and Nokia HS-12W, and only found that the BT 2.0 combination, ie, 818pro with HS-12W, produces good enough music quality. For all other combinations, there is always some pretty obvious hizzing sound around when playing a soung. That hizzing sound is not background sound, as it won't appear if I stop playing any song. It only appears when a certain part of a song is played.
It seems to me that the hizzing sound is caused by insufficient bandwidth or over-compression of the data transmission (or both?). This also matches with my test result.
If I am using the 818pro (it is pending for repair), I will surely bring the HS-12W around. Otherwise, I will just stick with my wired adapter + Sony headset.

possible sol guys.
what is that ?
'' MSFP AKU 2.0 ''
it looks like a guy in another forum did an upgrade with this and got a superior sound etc...?
??? :arrow:

Re: possible sol guys.
goldsaint said:
what is that ?
'' MSFP AKU 2.0 ''
it looks like a guy in another forum did an upgrade with this and got a superior sound etc...?
??? :arrow:
Click to expand...
Click to collapse
AKU 2.0 comes with support for A2DP.
In the case for XDA Atom, A2DP was supported on the day O2 released Atom.
A2DP quality in Atom was poor regardless of the Rom version, I tried the following roms:
1. 20060123B1WWE
2. Xda-Atom-ENG-20060123_Feb2006_.exe
3. R060221N_MN1ARC_RS00045
4. DSUU_ARC_C060414WWE_R060327N_EX0016__test_only_not_for_sale
5. Xda-Atom-ENG-20060426B1WWE
As described by buruburu, hizzing sound appears when a certain part of a song is played. Turning On/Off the equalizer doesn't seem to have any effect.
When listening the same song using wired headset, the quality was good, so can't be the problem of the song I am listening.
When listening the same Song using my PC (BT 1.2 with Widcomm 4.0.1.2800 stack), the quality was good as well.
So, no problem with the song I am listening, no problem with the BT Stereo headset I am using, no problem with the BT version (1.2 in Atom, 1.2 in PC; don't have BT 2.0, so can't tell) I am using, and my BT headset works fine making/receiving phone calls.
Conclusion:
1. the BT stack in Atom has a problem;
2. the audio chipset in Atom was a cheap and lousy one;
3. my Atom has a problem (I am in UK, don't have another Atom to test)
If it's (1), hope someone can fix it!!![/i]

tcmp
forgot to tell u guys : i get good quality cause i dont use crappy windows media player to play my mp3s, i use TCMP for every file i have.
and it works a charm.
the only thing i dont get, is that sometimes during the song play, it stops for a second then go back to it.
wierd :shock:

Re: tcmp
goldsaint said:
forgot to tell u guys : i get good quality cause i dont use crappy windows media player to play my mp3s, i use TCMP for every file i have.
and it works a charm.
the only thing i dont get, is that sometimes during the song play, it stops for a second then go back to it.
wierd :shock:
Click to expand...
Click to collapse
Aha! Finally found this topic. I'm on O² Atom + Jabra BT620s. The headset sound quality is superb stable on pc (5mb limit Bluesoil). On Atom... WM10 sounds too low even volume maxed, the equalizer doesn't work on A2DP. The best is on TCPMP where I can blast the pre-amp to make it louder. The quality is "ok²", hisses are seldom but hiccups exists once or twice in wma/mp3 tracks and too bad headset playback function only work on WM10 not TCPMP. And to click my headset when answering calls, I've to set TCPMP not to play on background, after clicking, I've to increase the headset volume.
Does any of you guys who's using other than Atom experience hiccups on A2DP? And those with Atom other than goldsaint? I don't think it's Jabra's but Atom fault itself. I've only SmallMenuPlus and O²Plus running in background (all startup removed), no battery/space monitors on today and overclocked to constant stable 520Mhz with XCPUScalar on the latest firmware. Thank you...

Am using I-Tech Clip S with my ATOM and sound quality is EXcellent!!! No hissing sound at all.

I highly recommend taking a look at the following,
http://forum.xda-developers.com/viewtopic.php?t=54621
I had the same complaint, but these registry edits cleared up my quality problems almost entirely.

Tweaked the bitpool settings to 53 but did not recognize any improvement. The other 2 tweaks is useless for me-- whenever i used my I-Tech Clip S BT headset/wireless stereo, can't hear the other callers voice. Streaming audio to my Clip-S is OK but no noticeable difference.
Cheers

I've tried my two bluetooth stereo headset on HP-2210 , DOPOD 818Pro and O2 Atom,one thing is certain,the sound qulilaty in O2 Atom is worst and poor.I consider the problem is ROM Firmware.

Some of the tweaks cause more harm than good
I removed all traces of these tweaks by doing a hard-reset, and my bt stereo is just fine with the occassional break. 8)
IMHO we should not just apply every tweak just because someone posted :twisted: EG some one claims he installed Atom Exec ROM on regular Atom Now he has vamoosed when asked to share. Some one posted a 4-letter word due to the mess he had when he followed that line :twisted:

Not to go against the current trend, but I entered the following into the reg editor and it made a huge improved in the sound quality using the Samsung SBH-100 headphones.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2DP\Settings]
"BitPool"=dword:00000053
"SampleRate"=dword:00044100
Still get the occasional skip but fingers crossed something will come up to fix this soon.

Why is A2DP so f'ed up?

Dont get me wrong, I'm loving the fact that we have A2DP when we shouldn't (thanks Microsoft :twisted: ) but I've read and reread every single thread about A2DP on the Prophet and I still can't get it to work the way it should.
Here's what i have: a Qtek S200 updated to the latest WWE Dopod ROM, with A2DP patch installed, and paired to a Bluetake I-Phono Mini (BT450Rx). I get both handsfree and stereo profiles as an option, and both work to a certain degree.
But here's the catch: I tried all the music players out there, and none even approaches a decent level of use:
- Media Player 10: best so far, but the Play/Pause button isnt working (only FF/REW), and when a call comes through, it answers on the headset, but when I hang up, the music resumes from the speaker of the Prophet and not the headset.
- Pocket Music: very buggy, skips a lot, and the AVRCP controls dont work.
- TCPMP: sound is fine, porbably the best, but once again, the controls for playback dont work.
Am I doing everything wrong, or is there really no way to get at least one of these to work?
Any thoughts/remarks/info etc would be appreciated.
thnaks, TDX

yeah, A2DP is a deal breaker for me, so I'm waiting waiting at this stage...(have yet to buy prophet)

So, no one has found a software combination that actually works?

tdx said:
- Media Player 10: best so far, but the Play/Pause button isnt working (only FF/REW), and when a call comes through, it answers on the headset, but when I hang up, the music resumes from the speaker of the Prophet and not the headset.
Click to expand...
Click to collapse
After the call, the music will only resume at the begining of a track.
Therefore, hit your rewind or forward button to resume music.
Even with this, it's still not seamless.

Well, I have an S200 with the A2DP patch working in conjunction with my Plantronics Pulsar 590 Stereo headset and I'm really impressed with its performance. Hi-fi sound under WMP10 and PocketMusic. No skips even without overclocking. Flawless Calls in the middle of my music. Resumes perfectly.
Must be a problem with your headset brand.
Never been so happy with my PDA/Phone.
Best regards...

Rayan said:
Must be a problem with your headset brand.
Click to expand...
Click to collapse
I don't think so.
I have the same problems with a Motorola Ht820.
If only some of us have this problem, we probably didn't install the fix properly.

What would be really cool, would be if someone could detail the exact steps needed to install A2Dp on the Prophet, enable AVRCP and get everything to work nicely. I know there have been other threads regarding this, but it's been a while since the patch came out, various people have posted different versions of it, new ROMs came out, so it all gets a little confusing.

It's really simple. I just used the attached file that I found over at i-phone forums. Read the simple instructions.
Best regards,
Rayan

Rayan said:
It's really simple. I just used the attached file that I found over at i-phone forums. Read the simple instructions.
Best regards,
Rayan
Click to expand...
Click to collapse
Ah. That's the registry edit method.
I installed mine the simpler way. Maybe the simpler way is not complete.

Thanks for the responses everyone. I actually spent some time and did some extra research/testing. Here's what I've narrowed it down to:
What works:
1. The A2DP works, as far as pairing, handsfree and wireless stereo go.
2. The AVCRP sort of works (only in WMP, othesr software apparently don't support it yet).
What doesn't work:
1. Play/Pause button in WMP. For some reason, FF/REW work, but not Play/Pause.
2. When I answer a phonecall with the BT450 while listening to music, it pauses the music, but when i hang up, the music reverts to the speakerphone (it loses the wireless audio status and i have to pair it again manually).
3. Finally, and I dont know if this is a bug or not, when I turn on the headset, it automatically establishes a wireless handsfree pairing, but not a wireless stereo (music) pairing. I have to go into settings and pair it manually EVERYTIME I want to listen to music. This sucks.
So, anyone else having the same three problems as me? Anyone has solutions to these.
I would be most eternally grateful.

27 said:
Rayan said:
It's really simple. I just used the attached file that I found over at i-phone forums. Read the simple instructions.
Best regards,
Rayan
Click to expand...
Click to collapse
Ah. That's the registry edit method.
I installed mine the simpler way. Maybe the simpler way is not complete.
Click to expand...
Click to collapse
Nope... It's not a manual regedit per se, it's all included on a .cab for easy application and a few other files to put in the Windows directory.
At least for me, it worked flawlessly while paired to my Plantronics gear.

Rayan said:
Well, I have an S200 with the A2DP patch working in conjunction with my Plantronics Pulsar 590 Stereo headset and I'm really impressed with its performance. Hi-fi sound under WMP10 and PocketMusic. No skips even without overclocking. Flawless Calls in the middle of my music. Resumes perfectly.
Must be a problem with your headset brand.
Never been so happy with my PDA/Phone.
Best regards...
Click to expand...
Click to collapse
You gotta be joking about HI-FI performance. I have the same headset and when it sounds really good with my ASUS W5A laptop with Toshiba BT stack it doesn't work all that well with Jamin. It sounds like it set to low quality mode. A2DP on Prophet that is.

Nope ID64, no jokes... It really is working for me perfectly even without overclocking.
Have you tried PocketMusic, because Media Player 10 sucks big time in all respects on the Prophet...
Are you sure you are pairing as Wireless Stereo profile? The first time I tried it, I mistakenly selected Hands-free profile and sounded just as you described.
ROM Version: 2.9.7.24 WWE
ROM Date: 2/9/06
Radio: 413.1.03
ExtROM: 2.9.7.106
A2DP Applied

Does PocketMusic have AVRCP controls though?

tdx said:
Does PocketMusic have AVRCP controls though?
Click to expand...
Click to collapse
Not sure if it's implemented inside PocketMusic or in the A2DP profile itself but AVRCP do work in PocketMusic without a hitch. The Plantronics Stereo Headset controls work prerfectly, and the PocketMusic fade-out-fade-in feature sounds simply impresive!
Best regards,
Rayan

A2DP with HT820 Headphones - Sound crackling - Solutions?

Hi All,
I have a o2 xDA Mini S aka Wizard/QTec 9100, etc...
I've been lurking about this forum for some months now, and the other day I decided after reading good news of the Motorola HT820 headset that this would work correctly if I used the A2DP .cab file supplied in these forums.
Well, I did that and it works as intended but I seem to get a background crackling noise which gets worse the louder the music is.
I can seem to reduce it, but it never quite goes away... I've noticed a few odd messages on this forum with other users with this problem but cant determine if its something when the HT820 is paired with a 'Wizard' or not.
I've tried about 5 different PocketPC audio music players and cant seem to determine if its the phone, the bluetooth in some way or the headset itself... However, when I plug the headset into an audio jack it sounds PERFECT.
I suspect it may be the bluetooth bandwidth in some way as the headphones work fine when used as normal headphones...
After 3 days of messing with it, I've come here to hopefully get some help, determine where the problem is and hopefully help with a fix.
My ROM is the original 2.21.4.1 WWE that originally came with the phone about 4 months ago. Is anyone else getting this problem, knows a fix or has any info as to what it ould be? If we all work together, maybe we can figure this out...
Thanks all.
Plonka2000

Hi Again,
I've been experimenting some more the last day and I cant quite seem to figure any more leads on what the problem could be related to.
Does anyone else experience this issue?
Thanks all.
Plonka2000.

I have experienced the same thing, especially with songs that are bass intensive. I have not found a solution.

I have experienced the same thing, especially with songs that are bass intensive. I have not found a solution.

Same here unfortunately
I've been experimenting a lot too, but presently still have a £40 set of headphones that sound worse than the ropey ones originally bundled with the Mini-S :evil:

Its at least good to know that other people are having the same issue.
Are you both using the Motorola HT820 as well?
Have you tried pairing it with another device to test the quality of the sound from another source.
I tried with my PC but my USB bluetooth adaptor is only BT1.0 compatible. Pairs but doesnt do anything...
What ROM versions are you guys using?
I'm still on my original 2.21.4.1 WWE that came originally with it.

Yeah - same headphones, same ROM (which I think is the latest one in any case).
I also have an XDAIIi which I wiped clean and use purely as an in-car GPS ATM. As soon as I get a chance (unfortunately rugby and beer eats up most of my spare time :? ) I'll see what I can find re an A2DP hack for the IIi and try the headphones on that.
Will post here with results (probably Monday)

Trinity A2DP problems - Temporary solution

Well, I was unsure if I should post this under one of the old posts, but I decided to start it as a new clean post...
Many are having problem with "hissing" noise, joint-stereo and low bitrate(or bitpool). For my sake, I've tried "fit4cat - Hermes Tweaker", "Sleuth255 A2DP fix" and several other methods, but without beeing able to get the soundquality I want from my headset.
Now, this is what worked for me after tweaking around with the registry a while, and endless pairing sessions
Download a registry editor(I use PHM, http://www.phm.lu/Products/PocketPC/RegEdit/ <- Download the PocketPC 2002/2003 ARM/PXA)
1: Turn off bluethooth on the Trinity
2: Unpair the Trinity with the headset(Delete the headset from the list!)
3: Change the following registry settings:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2 DP\Settings
MaxSupportedBitPool=80
MinSupportedBitPool=40 (or more if you want)
(if these arn't there, add them!)
And DELETE:
UseJointStereo = 0/1 (depending on whatever you have put there before)
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev]
Priority256=149
(let the rest be as it is)
4: Reboot
5: Now, DO NOT use the headset for direct pairing!(since you've already added your phone to the headset, pressing a button on it will useually pair it back with the Trinity) <- This seems to be the function that triggers the sound-problem...
Instead, set the headset in visible mode, and use the trinity to pair(search for new devices), when you find the headset and pair it, you will hear the pairing-sound from the trinity-speaker, and NOT the headset.
Now you can enjoy high quality stereo sound without any disturbance
But, the problem comes when you turn off your Trinity, or the headset. If you try to connect the headset and the phone by using the connectbutton/playbutton on the headset, it will pair, but this time you will hear the pairing sound in the headset, and then you have all your problems back... So then you have to turn of bluethooth, delete the headset from the trinity, and add it back once again by turing the headset in visible mode again.
So the solution to this, is to go to the device list on the trinity after you have lost connection with the headset(this is if you have turned of the trinity or the headset), and hold the stylus on it and choose "Use as wirelss stereo" and "use as handsfree"...
Thanks to all of you guys here who have posted solutions to the A2DP problems And if anyone have suggestions to other values that are better fit then the onces I've supplied, share them with us
And if all of this have been posted in another thread that I've missed out, the moderators are free to delete this one

Good grief, I can only imagine how many times you had to pair the headset before you noticed what was going on LOL, hope you didn't turn blue in the face
I imagine a ROM update could fix this problem.

Tiemen said:
Good grief, I can only imagine how many times you had to pair the headset before you noticed what was going on LOL, hope you didn't turn blue in the face
I imagine a ROM update could fix this problem.
Click to expand...
Click to collapse
Hehe! The thing that made me going was that I was able to get perfect sound once or twice, and since I made it work those few times I just had to find out what I actually did that made this work (And paying 175$ for the headset also keept me fueled for a while ) hehe!
I think I've used about 5-6 hours total these two days sitting pairing, adjusting settings, rebooting(ARGH!), untill I found out that the problem actually occurs when you use the headset to pair instead of the trinity

I don't understand what is it with bluetooth stereo:
quality is not good enough to listen to music 64 kbps... no bass, no medium, nothing just a hiss.
and plus you get 80% cpu (with a 400Mhz...), just to encode this crappy 64 kbps.
Yes exactly for all people having so many skipping problems check your cpu with taskmgr.
So you cannot play video with A2DP unless you have 1Ghz!!! good for battery life.
If you like music you want good earbuds. There's none with A2DP.
So what's the point again apart from having to charge one more device?

meroupow said:
I don't understand what is it with bluetooth stereo:
quality is not good enough to listen to music 64 kbps... no bass, no medium, nothing just a hiss.
and plus you get 80% cpu (with a 400Mhz...), just to encode this crappy 64 kbps.
Yes exactly for all people having so many skipping problems check your cpu with taskmgr.
So you cannot play video with A2DP unless you have 1Ghz!!! good for battery life.
If you like music you want good earbuds. There's none with A2DP.
So what's the point again apart from having to charge one more device?
Click to expand...
Click to collapse
1: Well, I'm not sure on the bluetooth 2.0 specs, so If there is a spec limit on 64kbps, then this is new to me.
2: And the skippingproblem is not just connected to the CPU-usage.. But if you have some info on this issue, then please; do share it with us.
3: A2DP headset with minijack is available many places, even HTC has one. And if you take a look at DS970, you will see that it's the same as Sony MDR-series.
4: And well, the CPU usage is a issue, but that is the only part that I agree with you on..(but let us be frank, I've bought a pair of A2DP headset, so I do smell a bit "conflict of interests" here...)
And to the bottom line, I've bought the Trinity because it's one hell of a gadget, and so is bluetooth stereo So if anyone want to shoot me for that, well hell yeah, go ahead
Edit: And FYI meroupow: I do feel you are a bit rude in the way you wrote that response, or at least a bit arrogant when you post a comment like that. Trying to mock people who have bought A2DP headsets and are tweaking and fixing issues to make them work correct(this also goes for GPS on the phone, black coating comming off, improving camera quality, getting the ATI ImageOn to work correctly... etc) . And I must honestly say that yes, you do have some points there, but you should be able to present your views in a much more polite way...

Sound better but discontinuou. Impossible ear music. The sound goes on and off continuously. Why?. How can I do?

I am sorry if you felt I was being rude.
That was not my point and It was probably the wrong place to say what I said.
It is just that just like you I bought this A2DP stuff with my Wizard.
Just like you I tweaked it as much as I could and managed to get it work.
The problem is when it comes to sound quality is important and just working is not enough.
When you show your happiness because it's finally working, people think you are happy because it's good and they are buying it. And get disappointed too.
I just wanted to warn people on the fact that it's not working to watch movies because of cpu and that a 5$ earbud will have far superior sound quality.
It's just a toy and by no way a mature technology.

I've got a CB2530, hard to pair and I still don't know what do I do for the pairing to be successful, but I do manage to pair it after a few attempts, on the registry I just disable jointstereo, set the MaxSupportedBitPool to 320 and the quality is quite nice and with minimal skipping. High cpu usage of course, but if I set the MaxSupportedBitPool to 80 the quality is quite crappy and the device gets equally sluggish(gets worse when you touch on the screen, as K-Rally does even with the new ROM).
As for the pairing, I still haven't confirmed, but I think the registry setting that enables the bluesnarf option on BTCrawler has something to do with it(the bluetooth ISC mode thing), because right after setting it I managed to pair the headset right away, the thing is, I was also successful in other occasions when I hadn't set that reg. option.
Hearing the pairing sound from the trinity or headset doesn't indicate anything on my case, and I think I've already tried these reg settings you mention, but I'll try them again as soon as I get home to see if there's any difference and post the results.

meroupow said:
It is just that just like you I bought this A2DP stuff with my Wizard.
Just like you I tweaked it as much as I could and managed to get it work.
The problem is when it comes to sound quality is important and just working is not enough.
Click to expand...
Click to collapse
Install the Widcomm BT stack. With that, you won't have complaints - neither have I.

meroupow said:
I don't understand what is it with bluetooth stereo:
quality is not good enough to listen to music 64 kbps... no bass, no medium, nothing just a hiss.
and plus you get 80% cpu (with a 400Mhz...), just to encode this crappy 64 kbps.
Yes exactly for all people having so many skipping problems check your cpu with taskmgr.
Click to expand...
Click to collapse
Switch to the Widcomm BT stack.

neofix said:
5: Now, DO NOT use the headset for direct pairing!(since you've already added your phone to the headset, pressing a button on it will useually pair it back with the Trinity) <- This seems to be the function that triggers the sound-problem...
Instead, set the headset in visible mode, and use the trinity to pair(search for new devices), when you find the headset and pair it, you will hear the pairing-sound from the trinity-speaker, and NOT the headset.
Now you can enjoy high quality stereo sound without any disturbance
But, the problem comes when you turn off your Trinity, or the headset. If you try to connect the headset and the phone by using the connectbutton/playbutton on the headset, it will pair, but this time you will hear the pairing sound in the headset, and then you have all your problems back... So then you have to turn of bluethooth, delete the headset from the trinity, and add it back once again by turing the headset in visible mode again.
Click to expand...
Click to collapse
Does anyone know what is changed when you DO pair with the button on the headphones? With some models, you MUST do it because, otherwise, the music will be muted after about a second (see http://forum.xda-developers.com/showthread.php?t=282008 for more info).
I've searched around in the Registry for changes, without any success. It's possible we could directly edit the headphone connection-dependent parameters set AFTER the headphone's initiating the connection to avoid sound problems. If we knew where they're stored, that is.

Menneisyys said:
Switch to the Widcomm BT stack.
Click to expand...
Click to collapse
On trinity?

meroupow said:
I am sorry if you felt I was being rude.
That was not my point and It was probably the wrong place to say what I said.
It is just that just like you I bought this A2DP stuff with my Wizard.
Just like you I tweaked it as much as I could and managed to get it work.
The problem is when it comes to sound quality is important and just working is not enough.
When you show your happiness because it's finally working, people think you are happy because it's good and they are buying it. And get disappointed too.
I just wanted to warn people on the fact that it's not working to watch movies because of cpu and that a 5$ earbud will have far superior sound quality.
It's just a toy and by no way a mature technology.
Click to expand...
Click to collapse
BTW: is it the profile and software on the phones/PDAs that arn't handling it, or is it the standard itself that sucks? (or in other words, should I keep my headset for later usage or return it to the store)

I use Plantronics 590a and the skipping problem appears very rarely, mainly when I use volume/track buttons on headset. However, yesterday I also connected the headset to a normal stereo (via the 3.5mm adapter) and noticed the same occasional skipping. So in my opinion the skipping issue problem might be from headset, not Trinity.
I also tried a Nokia stereo bluetooth headset and noticed serious skipping problems - unusable.
PS: there is indeed a skipping problem if I open/close other applications while listening to music. It looks like the processor is very busy - system very slow etc.
PPS: any suggestions for a player that has equalizer? WMP doesn't and the sound is not that great (especially when compared to my old SE P900 which had an excellent player - best I've heard so far... )

Originally Posted by Menneisyys
Switch to the Widcomm BT stack.
Click to expand...
Click to collapse
If you tell me how I'll be glad to try...
I've never managed to do it sucessfully with my Prophet (witch had the same A2DP sound quality problem as it come with taht Fu***g, crappy, buggy, foot-coded MS BT stack)

Stereo BT experience is very positive
Hi all,
As always, someone has to have a different view of the issue. I got my trinity a couple of weeks ago and went and bought a Plantronics Pulsar 280 stereo headset. Mostly because of the stereo jack. I have not updated trinity nor have I applied any fixes, just paired right out of the box, as always from trinity BT manager. It really sounds great, particularlly the base is fantastic because of the earbud design. Even you may choose the actual headset of your dreams by using the standard 2.5mm jack. I have owned a "no brand" headset (still do) but it is not BT 2.0 and I think it makes a difference. The plantronics does not skip and it sounds great. Most of my MP3 is 128k and above so no limits with that. I have not checked my registry settings as they are default rom image set. I am using ROM 1.15.412.2 and Radio 1.20.00.11 (my trinity only speaks spanish for now, hope to change that soon).
Point being that the software and quality of the headphones makes all the difference, don't be so quick to blame trinity, just a piece of my mind. Keep it up guys!!!

baramuse said:
If you tell me how I'll be glad to try...
I've never managed to do it sucessfully with my Prophet (witch had the same A2DP sound quality problem as it come with taht Fu***g, crappy, buggy, foot-coded MS BT stack)
Click to expand...
Click to collapse
Yes, how do you change the BT stack on the Trinity?
Thanks.

danosimo said:
Hi all,
I have not updated trinity nor have I applied any fixes, just paired right out of the box, as always from trinity BT manager. It really sounds great, particularlly the base is fantastic because of the earbud design.
Click to expand...
Click to collapse
If you haven't changed anything it might sound great but it definitely sounds MONO!

aZooZa said:
Yes, how do you change the BT stack on the Trinity?
Thanks.
Click to expand...
Click to collapse
Up to now, I haven't managed to do it; see http://forum.xda-developers.com/showthread.php?t=291605 and http://forum.xda-developers.com/showthread.php?t=286094 . Sorry for telling you it might be possible - I assumed it would, as it is on most other HTC models.

anonimo said:
If you haven't changed anything it might sound great but it definitely sounds MONO!
Click to expand...
Click to collapse
set UseJointStereo to 0

Problem With BT Stereo Headset

After upgrading from WM 2003SE I have not been able to use my BT stereo headsets. I have both a Motorola S9 and a Jensen WBT212. The music from audio manager or WMP will start but then it will become choppy as if the connection is going on and off every second. Didn't have this issue with WM 2003SE. When used as a handsfree headset there is no issue. I also noticed the elapsed time of the song in progress is also erratic. This happens to both media players. When the BT stereo headsets are not used both players play normally. Anyone else having this issue? Any ideas or resolution would be greatly appreciated.
Device : Siemens SX66(WM6)
ROM Version : 5.60.00 WWE
ROM Date : 03/02/05
Radio Version : 1.15.00
Protocol Version : 1337.45

I finally got the bluetooth headset to work by installing the Helmi BT CAB for WM5 I found in the WM% forum. It is kind of strange now that it seems l;ike there are two BT connection managers but I can now get the headsets to coneect properly and the media players seem to be working properly too.

skipping problem
szfjcr said:
I finally got the bluetooth headset to work by installing the Helmi BT CAB for WM5 I found in the WM% forum. It is kind of strange now that it seems l;ike there are two BT connection managers but I can now get the headsets to coneect properly and the media players seem to be working properly too.
Click to expand...
Click to collapse
Hi I have that weird skipping problem with my HT 820 motorola stereo BT It's not really bad but it shouldn't skip I think. could you send my a link to that cab? any help appreciated.
Thanks Gyurma

BA WM5 Broadcom 1.7.1 Build 3400 Stack (Test) is the title of the thread.

which one?
thank you,but I found it,but there are several patches and stuff over there one of which (BTStack.zip) I do not know how to install which one did you use?
thanks again
Gyuri

Southwing SA505
I got my new BT headphones yesterday. Charged them all day. I did the pairing thing last night. They worked great. Fantastic. The audio was crisp and clear. I was able to answer the phone with them, and again over the phone the audio was great on both ends. But it's like that poem about the girl with the curl. When they're good, they're very, very good. But when they're bad, they're horrid.
I've spent the entire day fighting with the BT. It seems that I can use the headphones only right after I pair them to the device. If I shut them down or turn off BT, when I go to restart, I get the choppiness that's so bad you can't even understand what song is playing. Resetting doesn't fix it. If I uninstall the headphones, turn off BT, and then do a hard reset and reinstall the headphones, I can use them again and everything is perfect. Until I turn them off, and then it starts all over again.
What is causing this?
I know I could just install the Broadcom BT. In fact, I did today. Twice. The problem with that is that I can only get it to recognize the headphones as a high quality audio device, not a headset phone device as well. I can install it as both, but they don't play nice together when I do, and if I install it only as the high quality audio, I can't answer the phone with it. (And yest, I did install all the patches and addons I found throughout that thread.)
Also, the Broadcom audio quality isn't as good as what I'm getting with the MS. Almost like the difference between an mp3 encoded at 96kbps, rather than a better quality.
I've tried the A2DPAudioFix. No help there that I could find.
Am I missing something?
Is it really a choice between crappy audio quality and no phone headset functions and having to hard reset my device over and over?

Same exact problem
Just upgraded the radio today to 1.15 and rom to WM6 last week - Bluetooth stereo headphones work ok for phone but not for music. Please can someone posts links as to where I need to look for various cabs - I've tried searching the forum but am not having much luck. Just happened to stumble on this thread.
Michelle

Stereo bluetooth works now
Well - my dh is sick of me working on this - but I know how BT stereo headphones that work w/ audio and the phone.
I am not even sure what I did other than install every cab I found and I'm sorry I don't have links-
RestartRadio.exe
BroadcomCorp_BT1.0.0.3900.cab
RestartRadio.exe
(still had problem w/ scratchy / stop / start)
then ran
ba_oem_audiogw.cab
and
BroadcomCorp_BTUpdatefor1.0.0.3500.cab
but I don't exactly the order of the last two - I am not even sure I ran the audiogw.cab - anyway, it was like magic - stereo sound minus static and skipping.
This is after flashing to wm6 and flashing the radio to 1.15 - and there was something else I tried - oh, I did change the registry to 64 from 128 I believe - the SD card entry.
Anyway, it's been a long day - now I'm off to figure out how to change the 72M B free in Program to give some to storage which only has 5.48 free.
Michelle

Mgrunk- Which SD card entry did you change? Could you kindly check to see what version of BT you are now on? Start/Settings/Connections/Bluetooth should get you to the version. I have mine working like I described earlier using the HELMI WM5 Broadcomm 1.7 cab, however still have periodic static and skipping. I am curious because my BT headsets worked well with WM2003SE and BroadcomCorp_BT1.0.0.3900.cab. Thanks in advance for any info.

http://forum.xda-developers.com/showthread.php?t=329998&highlight=SDCARD+SDMemory_Class
is the link where I found it.
hklm/drivers/sdcard/clientdrivers/class/sdmemory_class is the entry and it was 128 and I changed it to 64 per another mesage - it did clear up the stuttering problem w/ AudioManager and WMP.
In regards to the version - now I have to BT icons on the Connections page - the About on the second icon says PE "Version 1.0.0 Build 3900"
But last night I deleted AudioManager and then had the horrible BT stereo headphone problems - I also noted while WMP was playing, it sucked the available program memory down to 5M - didn't matter what I started w/
I reinstalled AudioManager - no luck w/ BT, renistalled all the BT cabs
BroadcomCorp_BT1.0.0.3900
BroadcomCorp_BTUpdatefor1.0.0.3500 - oops looks like that probably was unecessary
HTCHeadset_AddOn
ba_oem_audiogw
But, I have persistant problems - if the ppc turns off - when it comes back on, BT icon shows on, but there's no BT. I have to go into CommManager and uncheck handset and headphones, click save, go back and click them back on and click save and then start audiomanager up and play music. But, I found that even w/ that I had to repeat the whole uncheck the services and then recheck them - somehow it's different than turning BT off and then on (that didn't work at all)
*** hey this morning the BT stereo headphones worked fine w/ AudioManager - didn't have to turn anything on or off - once in a while there's a short pause in sound but otherwise it sounds fine.
*** for no reason, BT stereo headphones are back to non-functioning - tried soft reset, reinstall cabs, etc. - no decent sound out of them - of course they work great for BT phone. Any suggestions?
I was a programmer in my former life (before 8 kids) and I design websites, but I was totally frustrated w/ the BT issue - so I'm not being methodical and I didn't really find a definite thread that said do 1, 2, 3 - so I've thrown every cab I can find onto my system.
I'm sure this doesn't help - it's very scattered and unorganized.
Michelle

mgrunk said:
http://forum.xda-developers.com/showthread.php?t=329998&highlight=SDCARD+SDMemory_Class
is the link where I found it.
hklm/drivers/sdcard/clientdrivers/class/sdmemory_class is the entry and it was 128 and I changed it to 64 per another mesage - it did clear up the stuttering problem w/ AudioManager and WMP.
In regards to the version - now I have to BT icons on the Connections page - the About on the second icon says PE "Version 1.0.0 Build 3900"
But last night I deleted AudioManager and then had the horrible BT stereo headphone problems - I also noted while WMP was playing, it sucked the available program memory down to 5M - didn't matter what I started w/
I reinstalled AudioManager - no luck w/ BT, renistalled all the BT cabs
BroadcomCorp_BT1.0.0.3900
BroadcomCorp_BTUpdatefor1.0.0.3500 - oops looks like that probably was unecessary
HTCHeadset_AddOn
ba_oem_audiogw
But, I have persistant problems - if the ppc turns off - when it comes back on, BT icon shows on, but there's no BT. I have to go into CommManager and uncheck handset and headphones, click save, go back and click them back on and click save and then start audiomanager up and play music. But, I found that even w/ that I had to repeat the whole uncheck the services and then recheck them - somehow it's different than turning BT off and then on (that didn't work at all)
*** hey this morning the BT stereo headphones worked fine w/ AudioManager - didn't have to turn anything on or off - once in a while there's a short pause in sound but otherwise it sounds fine.
I was a programmer in my former life (before 8 kids) and I design websites, but I was totally frustrated w/ the BT issue - so I'm not being methodical and I didn't really find a definite thread that said do 1, 2, 3 - so I've thrown every cab I can find onto my system.
I'm sure this doesn't help - it's very scattered and unorganized.
Michelle
Click to expand...
Click to collapse
Mgrunk. what Broadcom do you have installed and where to get it? In WM6.0 there isn't an "about"
meanwhile found the Helmi BT 1.7 but I am getting a insufficient driver memory available. I have to preform a soft-reset which I did but didn't help. Whats is the solution?

Give up
ok, it's back to not working - I'm going to return the stereo BT headphones and wait for a new answer - maybe it's the headphones.
But, in regards to the about screen - I had 2 BT icons on the Connection page and the 2nd one had an about page - I hard reset today and it's gone.
Michelle

Mgrunk- I hard reset a couple of days ago as well just trying to cleanup because having two BT connection managers was bothering me. I have gotten the MS stack to work better by doing the SD card registry edit you suggested and another one at HKLM\software\microsoft\bluetooth\a2dp\settings\bitpool and setting it to 25 then settling to 23. It was at 48 when I started. The lower the number slows down the data transmission rate and reduces the choppiness. The lower the lower the sound quality as well so you will need to adjust on your own. Start with 25 then work your way down. What headset were you using?

Well that worked sort of
I changed those 2 registery values - I had to take the bitrate back to 21 - the sound has really degraded - but the music plays - who knows if it will work tomorrow.
Oh, and I have a set of Spider BT stereo headphones - the people I've called said the sound is fine so the mike works ok and the sound is great for the phone.
They're behind the neck, over the ear as opposed to earbuds but I didn't want wires. The ones I really wanted were $129 - earbuds behind the neck.
Michelle

I've been able to keep my BT headphones working by deleting the entry and forcing them into pairing mode and re-pairing them whenever they get choppy. If I'm careful about how I shut them down and restart them (shut off music, wait until I hear the headphones stop transmitting sound, shut off headphones, shut down BT -> start music, start BT, start headphones) I can use them several times before I have to re-pair them.
But it still seems very weird to have to go through all this crap to use them. If I deviate from that shutdown and restart pattern, I have to re-pair them to get them working properly again. If I do a soft reset, I have to re-pair. It can't be the headphones. They work great with other BT applications.
They do work fantastic when they're working though.

a link from a different forum
http://pdaphonehome.com/forums/ppc-...-rom-only-read-1st-post-before-posting-7.html
so, now I'm off to convert some of my music to mp3 - and then I'm going to try some different players - AudioManager has the same issues w/ wma music as WM10 player - having the bit rate down to 21 really makes for some static in the music.
Update: didn't work - low rate mp3's w/ MortPlayer had same issue

yipppyy
i can fix it ... last night (Sleep on 02.30)
1 Flash WM6
2 disable BT
3 install WM6_SoundFix_.cab
4 install BroadCommPatch1.CAB
5 reset
6 check ... BT maybe cannot to open (i test with garmin mobile)
7 Uninstall BroadCommPatch1.CAB
8 install HELMI_BA_WM5_BT1.7_TEST.CAB
9 Reset
10 .................. Fly ............
if complete .. display menu bt must change same me
All file work with me
download http://www.xbizdomain.com/puchong/pda/BGfixBT.rar
Good Luck

Oh no solution me not work !!!!
i can fix .... Streo headset ... but can't use small talk function..... in bt headset .. have a ring call every time

Lost in China
I have a problem with a Chinese Dopod HS-01 BT Stereo Headset!!!
Phone works, but the Stereo Headset starts for a second or two and then it is gone!
Please, help!
Is there any other solution then to change the registry and the things?
Using: WM6 CE OS 5.2.2000.
No one to ask for help over here!

To all those whose stereo headphone work, but only at BitPool < 25 :
http://forum.xda-developers.com/showthread.php?t=352483
Stefan