Database Users

Taskmanager fixes BT Stereo skipping problem!?

I found this tip on another forum.
Try installing this taskmanager, start wmp and then the task manager, close any apps you don't need to use and then set it to monitor system load.
http://www.iaccarino.de/silvio/ppcstuff.htm
No more skipping on my HBH-DS970! Perhaps it works for other stereo headsets to?
I'm listening now with the "Excellent" setting in Hermes Tweaker. Before launching this taskmanager as per above music would skip at least every 20 seconds - not now, no skipping and quite nice audioquality, it's so sweet!
I hope that there might be some clue for you tweaking gurus how to perhaps implement something perhaps in the Hermes Tweaker that does the same thing as running this Taskmanager.

why no body respond to this thread since the whole forum is talking about solving bt stereo skipping problem? And this guy here said this problem is solved. Because nobody believe this is true? i can confirmed this is real. This method really solved the bt skipping problem. so what the hell you all waiting.
Faster download it and update the wiki!!! thanks

You can also use Magic Button...
I've never had a problem with A2DP skipping.

testdebug said:
why no body respond to this thread since the whole forum is talking about solving bt stereo skipping problem? And this guy here said this problem is solved. Because nobody believe this is true? i can confirmed this is real. This method really solved the bt skipping problem. so what the hell you all waiting.
Faster download it and update the wiki!!! thanks
Click to expand...
Click to collapse
I must say I'm very suprised to at the low interest! Where are the gurus that can figure this out and perhaps use it in the Hermes Tweaker or as a way of finding out how to improve things even further.

Moskus said:
You can also use Magic Button...
I've never had a problem with A2DP skipping.
Click to expand...
Click to collapse
I'm sorry but you have misunderstod this thing. I don't need a taskswitcher, but by using it as I mentioned above the probelm with skipping audio that most people experience with stereo bluetooth headsets are gone.
If you never had a problem with stereo audio skipping, what headset are you using? Have you used the Hermes Tweaker to improve the A2DP audio quality? Set it to Excellent and I think you will hear some skipping if you don't run the program mentioned.

testdebug said:
why no body respond to this thread since the whole forum is talking about solving bt stereo skipping problem? And this guy here said this problem is solved. Because nobody believe this is true? i can confirmed this is real. This method really solved the bt skipping problem. so what the hell you all waiting.
Faster download it and update the wiki!!! thanks
Click to expand...
Click to collapse
Nice to hear it works for you to, great audio! What BT headset are you using?

As a workaround, its a bit kludgy.... What I am doing is researching the reasons why it works as an insight into the root cause. Perhaps that taskmanager's developer could enlighten us as to what he's actually doing to "monitor system load". I might fire him off a message on this ITNF.... If it doesn't slow down the TyTN drastically, I could develop a service that just does this in the background.
At any rate, I'll be loading up the fix today to play around....

Sleuth255 said:
As a workaround, its a bit kludgy.... What I am doing is researching the reasons why it works as an insight into the root cause. Perhaps that taskmanager's developer could enlighten us as to what he's actually doing to "monitor system load". I might fire him off a message on this ITNF.... If it doesn't slow down the TyTN drastically, I could develop a service that just does this in the background.
At any rate, I'll be loading up the fix today to play around....
Click to expand...
Click to collapse
Great to hear!!

Tried it, installed the Task Manager, set the BT audio quality to Excellent with the fit4cat Hermes Tweak tool and I still get skipping.
Is there any difference between using Windows Media or PocketMusic to play audio?
I have the Jabra BT620s headset.

Well, this solution does help the skip but does not eliminate it on my iPAQ headset. The problem sounds more like a scratch on a record now than a full breakup and as such is more bearable. Perhaps theres a way to tune this further with A2DP registry settings. I'm running a bitpool of 58 with maxbitpool set to 80 currently.
Damn.... As I was writing this, the skipping just stopped! WTF ????
Maybe A2DP just chose a different bitpool value. Everything's running perfectly now!
edit: the skipping returns when I quit the taskmanager and stops again when I run it so the taskmanager is definitely involved here.

Sleuth255 said:
Well, this solution does help the skip but does not eliminate it on my iPAQ headset. The problem sounds more like a scratch on a record now than a full breakup and as such is more bearable. Perhaps theres a way to tune this further with A2DP registry settings. I'm running a bitpool of 58 with maxbitpool set to 80 currently.
Damn.... As I was writing this, the skipping just stopped! WTF ????
Maybe A2DP just chose a different bitpool value. Everything's running perfectly now!
edit: the skipping returns when I quit the taskmanager and stops again when I run it so the taskmanager is definitely involved here.
Click to expand...
Click to collapse
I don't know what bitpool the Hermes Tweaker sets, but setting it to good prouces a lot of hissing sound, going to "Excellent" it sounds very good on the HBH-DS970.

@Moskus: plz elaborate on how you're using magic button to correct the skipping problem? Also, what BT stereo headset are you using?

Hiryu said:
Tried it, installed the Task Manager, set the BT audio quality to Excellent with the fit4cat Hermes Tweak tool and I still get skipping.
Is there any difference between using Windows Media or PocketMusic to play audio?
I have the Jabra BT620s headset.
Click to expand...
Click to collapse
Did you also run the Task manager and set it to monitor system load, so you see the graph on the screen?

Yes I did.
I tried plying audio with Windows Media and PocketMusic, both have the same problem. Music plays and at random intervals it drops out (silence, but audio plays) after a few seconds audio resumes.
edit:It does however look like it is skipping less when I use the Task Manager.

What you stop ?
I installed also and i have same skip problem ...
Tell me one think ... after a soft reset, what programs you stop on task manager ?
I stop all prorams but i have a lot in the process tab also.
Can you post your reg values and where in reg must put that values please ?
Thanks

I tried it and I can get no skipping with bitpool set at 48. i cant go higher. This is better than before. But I have another issue. I just upgraded to the 1.35 rom, but b4 i had the cingular. Over the tytn is zippier with the new rom, but in both cases a2dp dies (even with the new kludge) if my maxsupportedbitpool is greater than 30. I presume this limits the bitpool at 30 anyway.
Also it may be me but it seems when i first start p the taskmaster it shows CPU running about 15-20% higher than after a few seconds of running it. Does it somehow kick in some other mode? Finally I guess this makes sense but the CPU works harder with higher rate encoded mp3 files (with 320kbps files it was running at 70-80%, with 192kps files at 50-55%). Does this make sense (I never thought about it b4).
Finally with bitpool set at 30, i can listen to internet radio (virgin UK!!!) over wifi and use bt headphones with no skipping, as long as task manager is running. Could not do that b4. But sound is less than perfect.

No Doubt, it is good discovery, I had Wiki stereo BT headset, It is working perfectly while set Medium, high or excellent in A2DP profile (Fit4Cat) alongwith Task Manager running in background (Minimize), But if I do not start task manager in parallel, The default skipping problem come back.
Basically, My skipping was ok since I bought Nokia HS12w, But Now I am in position to use Wiki stereo HS, as Wiki had long battery life then Nokia. Of course LCD & some other are plus in Nokia HS12W, But LCD does not have major role as Caller ID BT stakes are not working yet. Therefore WiKi is still good Choice if used for stereo MP3.
Thanks . Jompao . to make my stereo BT HS alive. BTW It is observed unmatched stereo Quality if set to excellent (no distortion)

DenisJ said:
I installed also and i have same skip problem ...
Tell me one think ... after a soft reset, what programs you stop on task manager ?
I stop all prorams but i have a lot in the process tab also.
Can you post your reg values and where in reg must put that values please ?
Thanks
Click to expand...
Click to collapse
I didn't kill any processes, just shut down tasks Iike active synk or so. I have noticed when playing through speakers CPU load is like 17%, as soon as I turn on bluetooth and headset connects it goes to 100% a second or two then stabilises around 70-80% so you don't want a ton of extra tasks running at the same time.

soofi1 said:
No Doubt, it is good discovery, I had Wiki stereo BT headset, It is working perfectly while set Medium, high or excellent in A2DP profile (Fit4Cat) alongwith Task Manager running in background (Minimize), But if I do not start task manager in parallel, The default skipping problem come back.
Basically, My skipping was ok since I bought Nokia HS12w, But Now I am in position to use Wiki stereo HS, as Wiki had long battery life then Nokia. Of course LCD & some other are plus in Nokia HS12W, But LCD does not have major role as Caller ID BT stakes are not working yet. Therefore WiKi is still good Choice if used for stereo MP3.
Thanks . Jompao . to make my stereo BT HS alive. BTW It is observed unmatched stereo Quality if set to excellent (no distortion)
Click to expand...
Click to collapse
I'm glad it's working for you, what is the Wiki stereo BT headset? Haven't heard about it before.

Hiryu said:
Yes I did.
I tried plying audio with Windows Media and PocketMusic, both have the same problem. Music plays and at random intervals it drops out (silence, but audio plays) after a few seconds audio resumes.
edit:It does however look like it is skipping less when I use the Task Manager.
Click to expand...
Click to collapse
Did you try to lower the quality setting with Hermes Tweaker or even turn off the A2DP tweak?

p3600 A2dp, crappy sound

The quality of music with A2DP is really bad, have much better sound with my qtek s110 with a2dp hack. I have been using the same sony ericsson ds970. Is there anything that can be done about it?

perhaps you can follow the instruction to turn on the stereo, then the sound will be better.

This is my experience to. I had a SE m600i before and the sound was way much better on that device.

The sound clearly suckes with the headset that is packet with the P3600.
The sound on the S100 was far more better.
Lets just hope the ATi chip get's activated on the rom-update, so that the Graphics and Sound get better.

guys, could you please be more specific? what exactly made you unhappy about the sound produced by HTC Trinity?
please define the problem. is it too soft, too loud, lacking bass or higher frequencies, choppy, etc, etc????
P.S. forget about stock standard wired headset supplied with your Trinity. it's bad.

Azamat said:
The sound clearly suckes with the headset that is packet with the P3600.
The sound on the S100 was far more better.
Lets just hope the ATi chip get's activated on the rom-update, so that the Graphics and Sound get better.
Click to expand...
Click to collapse
ATI chip?

Guys try using the Hermes Registry Tweaker
I used the hermes registry tweaker to take BT Stereo sound from "Okay" to "Excellent" the tool has five levels of quality as well a tweak to enable true stereo rather than joint stereo.
It worked for me! You can unlock and mount EXTrom too.
http://www.theunwired.net/?itemid=3311

It has a desturbing sound on the higher tones and the bas is muffled. I tried the fit4 program and changed to the best quality, it sounded a little bit better but it was hard to hear, beacuse now the music skips even more thnat earlier. You know you ger music for a while, it cuts of for a second and then comes back. Now it does this every 5 seconds.

CutePinkSox said:
I used the hermes registry tweaker to take BT Stereo sound from "Okay" to "Excellent" the tool has five levels of quality as well a tweak to enable true stereo rather than joint stereo.
It worked for me! You can unlock and mount EXTrom too.
http://www.theunwired.net/?itemid=3311
Click to expand...
Click to collapse
just tested it here. seems to work. The setting was on LOW on my trinity.
I also tried to turn on the GPS settings, which turned on a nice little menu for configuration of the GPS. Looks promising if this is what we get
does not look like the settings gets any gps functionality to be activated besides the settings.

Excellent
Made a big diference on mine too! Nice to know it worked for you.
Try this to disable joint stereo so you get REAL stereo sound, then you will see the difference.

..now the music skips even more thnat earlier. You know you ger music for a while, it cuts of for a second and then comes back. Now it does this every 5 seconds.
Click to expand...
Click to collapse
please see this thread for details. There are good chances for this little gem to work on Trinity as well.
http://forum.xda-developers.com/showthread.php?t=284974

you guys might also want to check out the effort made to port the WIDCOMM stack onto the hermes (to replace the microsoft BT stack). the widcomm stack is superioir and the testers so far have indicated that sound on a2dp is great. the hermes and trinity are basically the same... so it might work.
the development thread is here http://forum.xda-developers.com/showthread.php?t=285419&highlight=widcomm+development
also consider a donation if you like here:
http://forum.xda-developers.com/showthread.php?t=284329&highlight=100+users

Last time I tried the Widcomm stack the stack started well, but I couldn't see any bluetooth device. The blue-led did not flash either.

Can't find any bluetooth device.
adewidt said:
Last time I tried the Widcomm stack the stack started well, but I couldn't see any bluetooth device. The blue-led did not flash either.
Click to expand...
Click to collapse
Same here ....

3D surround configuration
On page 78 of Trinity's manual there is an instruction to set the 3D surround configuration at the headset by going to
Start> Settings > Personal > 3D Surround Sound
and enabling surround sound + setting levels.
I simply can't find the "3D surround sound" selection at >Personal tab...
Can someone help me to configure (eventually by using some registry configuration) how to make this command to appear?
Seems to me this could help to improve stereo quality at P3600...

low volume on p3600i
SecureGSM said:
guys, could you please be more specific? what exactly made you unhappy about the sound produced by HTC Trinity?
please define the problem. is it too soft, too loud, lacking bass or higher frequencies, choppy, etc, etc????
P.S. forget about stock standard wired headset supplied with your Trinity. it's bad.
Click to expand...
Click to collapse
The problem with my new p3600i is that the volume is much too low. With volume control at max setting, I can just hear music in a quiet environment. e.g. an empty room. When there is any background noise, e.g walking along the street, on a train etc, it is almost inaudible. I am mainly listening to classical music, so the dynamic variation is greater than for rock etc., but nevertheless very disappointing.
I am using the supplied headset, but the sound is not loud enough to know what the quality is like.
Are there any setting I haven't found yet? All the talk about changing the ROM sounds like something which might void the warranty
thanks
John

I have used HTC_UseJointStereff.cab and HTweakC, it seems that the sound changes a little, i don't konw which helps, but they help....
Thank you all.

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

Can anyone try A2DP?

I was wondering if the audio quality and sound stuttering has improved by using BT stereo headphones with Blackstone...
I have a trinity and i still haven't found a setting nor a rom nor a BT stack which handles my samsung headphones with a decent quality and no stuttering...
My cheap nokia 6234 has a solid connection and a good quality sound compared to the trinity... Plus, the A2DP connection slows my device down so much you have to pause if you want to do anything with it...
So if anyone could report about using bluetooth headphones with Blackstone, I would be very grateful as that would help me decide whether to buy or not
Thanks a lot
--
Fra

Great
I have the Touch HD for a few days now with the BH S100 HTC bluetooth headset. I have to say that the sound quality is great. It is even better than my conventional mp3 player.
Stable, never lost connection, etc.
Hope this helps.

I tried it today, with my Sony-headset.
It seems to stutter, though, for the five minutes I tested.

I have the Blackstone from seven day and the A2DP is OK with my Sony_Ericsson HBH-DS200.
The sound is very good and the pairing with the phone is immediatly in about 1 second.
Regards

reasonably OK with my Jabra BT620s. However, quality in BT A2DP is not really comparable with wired headsets, and i got some losses when passing nearby EM sources like wifi, etc.etc.

I needed to enhance the quality with Schaps Advanced Config Tool.

Alpine radio
I have an Alpine radio with bluetooth capabilities in my car, and for the first time I have a great connection with my HD. My Touch Diamond stuttered.

Thanks a lot everyone!
I guess it depends by the headset model and interferences then...
I'm still looking for a shop which would make me play with it for a little while...

i have a pioneer deh 700bt and the headunit set up was easier than the nokia n95
streaming music was a bit weird, the quality was very weird, kinda like very low bit rate streaming on mp3s at times, then fine again.
my n95 music used to pause when i took the key out of the ingnition and the stereo turn off
however the HD just keeps playing, but not through the speaker phone....just see it still playing
bit disappointed, and looking for a fix
I've only played for 10 mins, so i'll let you know if i find some more.

I have an Audi A3 from 2005 with a original BT carkit.
Can I use my HD to play some music ?
I can make phonecalls without a problem, if I adjust the volume of my carradio the volume from the HD is also adjusted.
But is there a possibility to play some music ?

Has anyone tried the Plantronics 855 Voyager stereo headset yet?
Also, I'm currently using the Jawbone 1 and noticed horrible interference/noise in the ear piece when the wifi is on, anyone else experience this?

I've never had any problems with the diamond and now with the hd. Like the senior man said, you need to increase the bluetooth bitpool values either in the registry or by using schaps tool. The difference in quality is immense - low values will make high bitrate music sound 64 kbps so you need to change this. Of course, the higher the bitpool the more chance of dropouts but I run at 60 and rarely, if ever have any dropouts.

Sennheiser MM200
Now if tested for almost one day my HD with my new Sennheiser MM 200. Amazing!!! The use of the MP3-Player switched with the use of the remote control to a new level. During sport display can be switched off(no need for touch display-less power consumption (try to give a more compareable info in future)), full control of play/pause/fwd/rwd/volume function. There is no delay of the HD in using the remote nor any transmission interruptings. Now the HD is with armwrest a perfect sport companion. The sound of the earphones - haven't had any better sound (and i've tried a lot of earplugs). Neckstrap fits perfect, mic in perfect position, clear speech and due to perfect noise reduction of the plugs even in noisy areas perfect understanding.
The Sennheiser was just charged the first time - i'll report the stamina.
So far -

I am using the i.Tech S35 bluetooth clip also on my HD now, and sound is very good, with WiFi on. Advantage of the clip is that one can use any headphones with it.
http://dontknowme.at/http://www.itechdynamic.com/en/products_spec.asp?cid=2&pid=02041

Louis said:
I have an Audi A3 from 2005 with a original BT carkit.
Can I use my HD to play some music ?
I can make phonecalls without a problem, if I adjust the volume of my carradio the volume from the HD is also adjusted.
But is there a possibility to play some music ?
Click to expand...
Click to collapse
no ... thats just working with A5
(is trying too much effort?)

Louis said:
I have an Audi A3 from 2005 with a original BT carkit.
Can I use my HD to play some music ?
I can make phonecalls without a problem, if I adjust the volume of my carradio the volume from the HD is also adjusted.
But is there a possibility to play some music ?
Click to expand...
Click to collapse
It's not possible to play music, only phone functions are available.
I've tested the HD with the PARROT MK6000 and everything works very fine, also A2DP, Quality is good.Phone Functions great, Phonebook synchronize works perfect

A2DP sound quality issue with Galaxy S 2

Hi guys
i read xda so much, but i don't write as well
i have a big issue with my galaxy s 2
i use a bt car stereo, with a2dp and avrcp support
i used to stream all my music collection from my iphone4
now i got my sgs2 and i love it... but
the audio stream looks "limited"
it seems a bandwidth issue, or i don't know a quality issue
with iphone4 i streamed at full quality, now the sgs2 sounds a lot worst
other than that, i have to disable wifi because if on, the music is choppy and skips a lot
with wifi off, the stream goes well, but it sound bad...
sorry for my not so perfect english... i hope there is a way to improve sound quality because i "live" with a2dp on in my car...

That's strange. My a2dp stream actually sound better from sgs2 than it does from my ipod touch 2nd gen, iphone or my computer (bluez).
Receiver is a belkin stereo a2dp receiver.
Are you sure that it's not in handsfree mode? Long press the a2dp device in bluetooth settings and there should be an option to select it to be a media device, make sure it's checked.

thanks for the reply gvoima, no it's in media device mode
i think the problem is the bitpool
i've got the same problem of this guy: http://forum.xda-developers.com/showthread.php?t=708685
there is an mp3 sample of the problem in the first page

gvoima said:
That's strange. My a2dp stream actually sound better from sgs2 than it does from my ipod touch 2nd gen, iphone or my computer (bluez).
Receiver is a belkin stereo a2dp receiver.
Are you sure that it's not in handsfree mode? Long press the a2dp device in bluetooth settings and there should be an option to select it to be a media device, make sure it's checked.
Click to expand...
Click to collapse
I got a belkin stereo receiver as well, but it sounds bad and choppy, just like the topic starter described. Though still compressed (this is a known issue for A2DP due to bandwidth limitations) songs sounds much better from my Nokia E52 work phone.

rikc said:
I got a belkin stereo receiver as well, but it sounds bad and choppy, just like the topic starter described. Though still compressed (this is a known issue for A2DP due to bandwidth limitations) songs sounds much better from my Nokia E52 work phone.
Click to expand...
Click to collapse
The "but my (insert phone) worked better" isn't really valid. For as many people who make that statement there are an equal number who are shocked that the SGS2 works where other phones haven't. This is kind of like the Wi-Fi issue. When two pieces of equipment don't interact well you can't just blame one of them.
In my car and on my Yamaha YSP-4000 the SGS2's Bluetooth works better than any phone I've used. That includes the HD2, G2, and G2X. The sound is much more defined and headset controls (random and repeat) show available for the first time. The SGS2 also feeds track info to the car which none of the others did.
Bluetooth connections and sound quality are always a big YMMV.

My Sony MW600 sound great, I use to have a Motorola Defy , and it use to have an "Enhanced Stereo" option in the blue-tooth menu, the Samsung S2 does not have this option.

@BarryH,
Oh I know, I not blaming the SGS2. I only think the SGS2 out sound to it's output module which is somehow less suitable for the kind of compression, maybe set by the Belkin module. Actually I'm currious if there would be ways to change the way the SGS2 sends sound signals via A2DP

rikc said:
@BarryH,
Oh I know, I not blaming the SGS2. I only think the SGS2 out sound to it's output module which is somehow less suitable for the kind of compression, maybe set by the Belkin module. Actually I'm currious if there would be ways to change the way the SGS2 sends sound signals via A2DP
Click to expand...
Click to collapse
LG's implementation of Bluetooth drove G2X owners crazy. Check out this thread from the G2X forum...
http://forum.xda-developers.com/showthread.php?t=1117769
Maybe it will help. The only other solution for the G2X was installing an AOSP ROM.

Well, I tried it (Bluetooth Fix Repair), but off-course that tool is for a problem the SGS2 does not have.
From the tinkering I've done now I know.
- Having MusicFX installed does not make a difference
- Video players running ffmpeg codec do also not make much difference in sound quality
- The -type- of file does make a difference, i.e. low bitrate files play better
This makes me think, is there a music program which can resample/recode music before playing. I'd rather have software do that than A2DP do it badly, or is mono output (other than all the tools enabling playback on mono headsets which is for pre-A2DP headsets and thus something else) possible?

Edit /system/etc/bluetooth/audio.conf
Uncomment "Master" option and set it to "True".
Uncomment "MaxConnections" and set it to 3.
Most Android devices have this file configured poorly by default, those 2 settings should help though.
I'd suggest also enabling HFP and AutoConnect.

Great! That definitly reduced creaking/noises and even the occasional stuttering music!
Since you seem to know your stuff, would there be a way to send a mono signal to (only) the A2DP stack and would this decrease the 'tin can' effect? I'd rather have better upper tones than stereo.

knightnz said:
Edit /system/etc/bluetooth/audio.conf
Uncomment "Master" option and set it to "True".
Uncomment "MaxConnections" and set it to 3.
Most Android devices have this file configured poorly by default, those 2 settings should help though.
I'd suggest also enabling HFP and AutoConnect.
Click to expand...
Click to collapse
Thanks for the suggestions...going to try this and see if the sound quality improves in my car stereo.
Till now the best A2dp sound quality was on my Nexus S, but that was with the help of custom rom development and vodoo sound. Worst was the g2x.
Sent from my GT-I9100 using XDA Premium App

Ok guys, I think I might have... accidentily... run into a phenonemon.
I tested my phone on a Creative D100 wireless speaker it it went great, no tin can sound, no hickups.
This proved to me that there had to be something wrong. Now when I was posting here earlier I was listening a lot to music and at a certain moment I thought... wait I'm not hearing a tin-can sound anymore. However, later on while testing I heard it again so I thought I imagined it.
Powering off the phone and powering on again I was able to create this again. No tin can sound... however a lot of hickups (as if a lot of data had to be sent and it didn't quite fit). I made a call to my work phone (sound on the handset) to test and then the tin can sound was there again, no hick ups anymore though. Strangely enough a haven't been able to replicate the 'no tin can sound but hickup situation' though by powering off and on again. Tried after playing on the Belkin on the D100 again and no problems at all, great sound and no hickups whatsoever.

It appears to be a bigger issue with android connected to the bitpool setting the bluetooth receiver desires...
http://forum.xda-developers.com/showthread.php?p=14944891#post14944891

Let's hope the upcoming Cynogen can fix this issue.

I too felt that the A2DP sound quality on the Nokia BH103 is crap as compared to my Nokia 5800 (sounded even better than stock wired headset). It also uses a lot more battery, I find mediaserver using a lot of battery.
How do we escalate this to Samsung?

knightnz said:
Edit /system/etc/bluetooth/audio.conf
Uncomment "Master" option and set it to "True".
Uncomment "MaxConnections" and set it to 3.
Most Android devices have this file configured poorly by default, those 2 settings should help though.
I'd suggest also enabling HFP and AutoConnect.
Click to expand...
Click to collapse
Sorry, i'm on darky rom and i don't find this file, could someone help me out ?
Thanks