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.

Poor Stereo Result using D810 via BT headphone

I have been using iTech Clip Radio BT headphone to listen MP3 song with Dopod D810 TC version. But the overall sound quality was not real 'STEREO', sound like 'Psudo-Stereo' or MONO-like.
Pls advise if there was any suggestion to improve. I have also tried the suggestion registry edit using 'UseJointStereo'. But there was no improvement.
Disappointed AD2P stereo effect from Dopod this time.....

victorlam said:
I have been using iTech Clip Radio BT headphone to listen MP3 song with Dopod D810 TC version. But the overall sound quality was not real 'STEREO', sound like 'Psudo-Stereo' or MONO-like.
Pls advise if there was any suggestion to improve. I have also tried the suggestion registry edit using 'UseJointStereo'. But there was no improvement.
Disappointed AD2P stereo effect from Dopod this time.....
Click to expand...
Click to collapse
If you search a bit on the forum, you will se that the standard settings for A2DP is joint stereo...
You can fix this by changing the settings in the registry
http://forum.xda-developers.com/showthread.php?t=291384
(look the at keys there, and tweak a little if you want....
To just get real stereo, delete the jointstereo-key, or change the value to 0

neofix said:
If you search a bit on the forum, you will se that the standard settings for A2DP is joint stereo...
You can fix this by changing the settings in the registry
http://forum.xda-developers.com/showthread.php?t=291384
(look the at keys there, and tweak a little if you want....
To just get real stereo, delete the jointstereo-key, or change the value to 0
Click to expand...
Click to collapse
Pls confirm if this really can solve the 'MONO-LIKE' sound effect. I have been modified the registry setting on 'Jointstereo' before but it did not solve the problem.

The joint stereo registry change DOES change the BT audio output to true stereo.
I'm using the iTech R35 BT audio adapter with the reg edit. There is a tradeoff though, in that the music sounds very metallic with JOINTSTEREO off, compared to previously. I can live with it, but it could be better..
Off topic, but I cant seem to get the R35 and D810 pairing to work with phone calls

A2DP and UseJointStereo

I just bought a HTC S100 BT Stereo Headset. It works OK, but only with joint stereo active. If I set the UseJointStereo to 0 (Registry Settings) the sound is just awful!
And yes, I tried alls the different settings for better audio quality - that does not make a change at all.
Is this problem known? Any remedy?
A

Problem known and due to the poor M$ stack...
Only solution for decent BT stereo is the Widcomm stack (see the wiki)
It is painful to use (need to reset to avoid out of memory message), but the sound is great and it works along the M$ BT stack (not at the same time so...)

there are a few bt headsets that work well. my nokia hs_12w works well, but it was pricey. bulky too. my older no-name one had a terrible hiss, but this nokia doesn't.
wes

I need help with this also.
I installed the A2DPfix and the skipping is now gone but the quality is still very poor. There seems to be a lot of static noise or something. I applied the HTC Tweak A2DP fix for quality but it didin't do anything and now I can't get rid of it.
Please help.

tallshorty said:
I need help with this also.
I installed the A2DPfix and the skipping is now gone but the quality is still very poor. There seems to be a lot of static noise or something. I applied the HTC Tweak A2DP fix for quality but it didin't do anything and now I can't get rid of it.
Please help.
Click to expand...
Click to collapse
Do follow my articles - I've elaborated on this problem in several of them. See for example http://www.pocketpcmag.com/blogs/index.php?blog=3&p=1744&more=1&c=1&tb=1&pb=1

Menneisyys said:
Do follow my articles - I've elaborated on this problem in several of them. See for example http://www.pocketpcmag.com/blogs/index.php?blog=3&p=1744&more=1&c=1&tb=1&pb=1
Click to expand...
Click to collapse
Wow. that is some extensive article. I tried reading through it but not sure what i'm looking for. The article doesn't talk about the Logitech Freepulse headphone. Can you be more specific?

A2DP skip : any solution ?

I am trying Touch HD with a Jabra 620s, A2DP (stereo headset profile), but I suffer occasional music skips.
I have read numerous thread about this problem, and habitual registery fixes like Priority256 etc.. doesnot seems to work with Touch HD.
With Bitpool=30 I have no skip, but sound is awful.
With Bitpool=40 I begin to skip. JOINEDSTEREO=1 helps a little.
I have not tried all Bitpool values below 40 (painful, softreset etc..) but Bitpool=40 is minimum quality IMO.
I tweaked Priority256 (/HKLM/Drivers/BuiltIn/BtA2dpSnd) down to 1, with not much improvement.
I noticed also turning Wifi off helps, but it is no sufficient.
Does anyone of you use A2DP ? Do you have problems ? Thanks for your help.

i use it with the Sony Ericsson DS980 and i dont have any problems at all.. the only thing i notice is that the screen turns on every time i change the song.. any way to get rid of that? want to save battery lol.. ..

I get skips too. Haven't figured a solution yet.

I'm using Moto S9 stereo BT headset, I have the same problem......
And I noticed, when I start play music, and press the powerbutton make the HD enter the blackscreen mode, the quality is good, and music play very smooth, but if I press powerbutton again make the HD back to normal status, and screen on, big stutter occured, and after some seconds BT lost connect with HD......

It's a little outdated, however have you used Sleuth's A2DP fix?

i always got skips with a jabrabt620s and a trinity...well you can minimize it - but never get totally rid of the problem....this is an A2DP limitation, sensitive to EMI like wifi etc.
My suggestion: go to wires...

Skipping?
I've been using a Votager 855 A2DP headset for 6 or so months with Pocket player. It's an excellent application, complete with A2DP compliant equalizer.
I listen to head banging music, but it never skips...but maybe it does and I just don't notice between the bangs.
In another forum several months ago a person or two took up my suggestion on the PP app, and had good results with a stereo BT headset.

kareem9nba said:
It's a little outdated, however have you used Sleuth's A2DP fix?
Click to expand...
Click to collapse
I've seen it, but not installed it for two reasons :
1) It isn't validated for WM6 nor for Touch HD
2) It seems to eat CPU time too much, according to certain posts
Thanks for the tips anyways. If someone more daring than me installs it on Touch HD, keeps up informed.

pzucchel said:
i always got skips with a jabrabt620s and a trinity...well you can minimize it - but never get totally rid of the problem....this is an A2DP limitation, sensitive to EMI like wifi etc.
My suggestion: go to wires...
Click to expand...
Click to collapse
A lot of people have problems with A2DP, but a lot too have none. I'm pretty sure problem comes from poor BT stack, not A2DP technology itself or BT broadcast / EMI problems. I've almost the same skipping rate with my headset 30cm from my HD, than 5 or 8m from my HD.
Your suggestion is wise, but I'm eager to make my Christmas present functionnal..

audscott said:
I've been using a Votager 855 A2DP headset for 6 or so months with Pocket player. It's an excellent application, complete with A2DP compliant equalizer.
I listen to head banging music, but it never skips...but maybe it does and I just don't notice between the bangs.
In another forum several months ago a person or two took up my suggestion on the PP app, and had good results with a stereo BT headset.
Click to expand...
Click to collapse
I've just downloaded it and tryied it. For now, no skip at all !!! (with BitPool=42) This application seems to be very optimized for A2DP.
I keep you informed in this thread if this resolves my issue. I want to increase Bitpool to 50 or more to have optimal quality (I listen classical), and I hope PP will handle this datarate.
Thanks for this excellent advice audscott.

tyronne1126 said:
i use it with the Sony Ericsson DS980 and i dont have any problems at all.. the only thing i notice is that the screen turns on every time i change the song.. any way to get rid of that? want to save battery lol.. ..
Click to expand...
Click to collapse
I also have had no problems using the HBH-DS980 except that I too can't get it to stay in 'standby mode'.
I started a thread on this exact same issue, but have had no joy up until now.
http://forum.xda-developers.com/showthread.php?t=462376
Any help or pointers in the right direction would be greatly appreciated.
Cheers.
Mav.

dear all,
i remember searching up for ad2p anti-skip quite a few months back.
my conclusion was the following settings:
jointstereo -> turn on
samplerate -> 48000
remove all bitrate settings
then all should be well.
The previous settings that involves bitrate, priorit256 are meant for wm5 devices.
in wm6.1, most of these are redundant. in my case, the above settings works perfectly on my itech blueband pro. ad2p and avcrp works well with the default player or with wmp.

Where can one find these settings? I have looked high and low!
***Doh! Found them... HD Tweak is my friend!***

ruffruff said:
dear all,
i remember searching up for ad2p anti-skip quite a few months back.
my conclusion was the following settings:
jointstereo -> turn on
samplerate -> 48000
remove all bitrate settings
then all should be well.
The previous settings that involves bitrate, priorit256 are meant for wm5 devices.
in wm6.1, most of these are redundant. in my case, the above settings works perfectly on my itech blueband pro. ad2p and avcrp works well with the default player or with wmp.
Click to expand...
Click to collapse
I also have iTech BlueWhatEver and it works better, but still ones a few minutes sound skips
Also how to prevent phone from waking up from standby when I press pause/ff/rew button? Because it's ****ing annoying, I have to manually turn phone back off, so avcrp is totally useless if I have to touch the phone.

I suggest you lower the bitrate to 44100. 48k is useless since your mp3 are in 44.1kHz and you will save some CPU, bandwith
Jointstereo = 0 is prefered for quality purposes.
Then the bitpool ... this is where it gets tricky because every headset have their own limitations.
When i use it with my sony ericsson HBH-IS800 I can go up to 48.
If I use another device I need to lower it to 40.
The "CPU" of you headset needs to be taken into account.
The touch HD have no difficulties encoding SBC in realtime in high bitrate, the issue comes from the headset itself not able to decode SBC fast enough according to the bitpool you chose.
So there's nothing you can do except trying another BT Stack (that can have better SBC encoding algorithm) or changing you A2DP headset.