Develop Bugs

stereo bt but mono sound

iam currently using latest rom from dopod and motorola 820, although the two earpiece have sounds it is only mono, can someone help to make it stereo? o recomend what rom to use, thanks

In order to have stereo audio on a Bluetooth device, you need a profile called A2DP, which is currently only supported by the latest Qtek Universal ROM at the moment:
ftp://xda:[email protected]_Updates/UNI_QTEK_13077_176_10900_WWE.exe
Dopod has not released a ROM supporting A2DP yet.

thanks for the help, God bless

No problem. Do let us know whether it works well or not.

it works, i have stereo sound, but need improvements, in a song the bluetoth stops 3 to 4 times when playing, the player dont stop its the motorola 820 that stops several times.

I did come across a post with a patch for the A2DP flaw the other day. It's somewhere on this site - do a search and see if you're lucky.

Found it: http://forum.xda-developers.com/viewtopic.php?t=46811&highlight=universal+a2dp
It worked for me for a little while so try it.

Hi,
I have used A2DP a lot with my JasJar the last 4-5 months, and had written a summary of my experiences with this "lag/stuttering"-issue in another thread here...I have copied the most essential of that text below...might be usefull info for you;
-----------------------------------------------------------------------------------
It seems to be two major factors affecting this "stuttering"/"lag" (from my experiences at least...I have used A2DP a lot with my Universal...couple of hours every day);
1. Universal struggling outputting(RAM/CPU...or both!?)
One help here is to apply the registry "A2DP priority" fix (found it in the forums here...and so did richardlai).
Another is to close all programs before using it (I usually do not do this...I usually only do it in hindsight when I get the problem).
2. Signal between Universal and headset struggling (obstructions between Universal and headset, WiFi nearby, so forth)
I for example get this problem if I put my Universal in my trouser pocket (I know, I must have big pockets, and walk around, I get stuttering/lag occationally. If I then take it out, and hold it in my hand farily still when I walk...no stuttering. I have found, that when I walk, it is Ok to have it in my backpack/rugsack...then for some reason it very rearly stutters...so I usually do that.
But when I walk of the bus at work, and walk into the "campus" of my workplace, which is cramped with radiotransmitters (is norways largest Telecom company)...I get a lot of stuttering, and need to take it out of backpack, and hold it in my hand, at it gets a lot better.
In short: A2DP with the Universal works, but is sensitive to disturbance/obstructions/moving around...and to make it worse, it is also sometimes dependant of the Universal itself struggling with CPU/RAM. So you can not totally get rid of the problem...but you can do a lot to minimize it...I almost never experience it now...except in the campus-area at work that is.
I have BTW had the exact same problems before with Qtek 2020 and Qtek9090 (which I got hold of some "A2DP patches", when I had those devices). ...but I really had a LOT more stuttering with those two...so much so, that I never used A2DP with them on a daily basis.
-----------------------------------------------------------------------------------
I also wrote a short post on my experiences with the different stereo headsets I have...yes, they actually act a little bit different it seems (regarding resume/pause button, and how easy/automatic they "reconnect"). You can see it here; http://forum.xda-developers.com/viewtopic.php?t=47977
Hope this is of some help for you!

RonnyGydar: I came across your little summary a little while ago and have done the registry fix, but the problem still exists! Do you think altering the value in some way would help?

richardlai,
I added the registry value manually...found a reg-file (or was it a CAB-file!?) that supposedly should add it...but when I checked later the key was still not added in the registry?
So I added it manually.
BUT, I do still have the problem...but that seems to be radio interference/distance so forth...since when I hold JasJar in my hand and don't move it around, I NEVER have an problem. ...and actually fairly rearly when I have it in my rugsack/backpack.
With 1 or 2 exceptions...where it lagged "all the time"...but then a soft-reset cured it.
So if you have this problem with your phone lying in front of you on the table...then it really sounds like it is the JasJar/Universal that IS the cause (and not interference)...and yes then the registry hack should help.
BUT I have not done any real testing of the effect of it...I am not sure how much effect it really has...all I know is that I had a "lot of problems" with lag before...and now I almost never have it.
...I hate those "diffuse" problems...when it is impossible to measure in a "scientific" way that "this cures it", and "this do not"! :-(
Sorry about the "little help" I give here...but this issue is a bit "fuzzy"...I have gotten it enough under control to that it isn't a problem any more (during a 1 hour workout, I will typically get this gap/lag 0-2 times...and that is not a problem for me...at least compared to what I experienced 6 months ago, where I was lucky if I could hear 10 seconds without any problems).

The stuttering problem seems to be permanent now... Luckily I have a HP hx4700 (which has a Broadcom bluetooth module) and works perfectly with my Jabra HT620s. Anyone using an A2DP ROM other than Qtek? I'd like to try a different ROM to see if it would make a difference.

only a second of sound
i use the qstarz bt stereo headset (http://www.qstarz.com/products/bh-q392s.aspx) and it works fine for phonecalls, but when i set it for wireless stereo and start a media player (TCPMP, WMP, Pocket Player...) i mostly only get sound for one second and then it shuts up. the players keep playing, the buttons on the headset can pause, resume and change tracks but there is no sound at all.
i get full wireless stereo playback occasionally, but i can't figure out what differs from time to time.
i applied the above patch with no success. anyone has a thought on the matter?
Ariel.

richardlai said:
The stuttering problem seems to be permanent now... Luckily I have a HP hx4700 (which has a Broadcom bluetooth module) and works perfectly with my Jabra HT620s. Anyone using an A2DP ROM other than Qtek? I'd like to try a different ROM to see if it would make a difference.
Click to expand...
Click to collapse
I use the BT620s with my Qtek 9000 without much trouble. Here's the trick:
Assuming you have paired with succes. Set headset and BT OFF before starting.
Turn bluetooth ON
wait a second or two
Turn headset ON
wait another two seconds
Now go to BT settings, and connect the headset.
Wait for the little pling sound (the activesync sound ).
Now start Windows Media Player and play an MP3.
Using this sequence has never failed me
edit:
I use the latest OFFICIAL Qtek 9000 WWE ROM. (Without the ExtROM though ) And i did not use any patches regarding A2DP or Bluetooth.

this is what i tried, many times. i get the activesync sound, sometimes from the speakers, sometimes in the headset, but almost always only one second of sound afterwards.
i found that by pairing the headset to the universal by pressing and holding the green button on the headset untill the universal recognises (doesn't take long) gives better results.
pairing it by the instructions of the headset (putting it in discover mode, and then searching for a device with the universal) will give me the one second sound almost every time.

Biffert said:
I use the BT620s with my Qtek 9000 without much trouble. Here's the trick:
Assuming you have paired with succes. Set headset and BT OFF before starting.
Turn bluetooth ON
wait a second or two
Turn headset ON
wait another two seconds
Now go to BT settings, and connect the headset.
Wait for the little pling sound (the activesync sound ).
Now start Windows Media Player and play an MP3.
Using this sequence has never failed me
Click to expand...
Click to collapse
Well, this has ALWAYS been the sequence I use (and I don't think you can do it in any other way). The real problem here is either the buffer memory or processor load.

richardlai said:
Biffert said:
I use the BT620s with my Qtek 9000 without much trouble. Here's the trick:
Assuming you have paired with succes. Set headset and BT OFF before starting.
Turn bluetooth ON
wait a second or two
Turn headset ON
wait another two seconds
Now go to BT settings, and connect the headset.
Wait for the little pling sound (the activesync sound ).
Now start Windows Media Player and play an MP3.
Using this sequence has never failed me
Click to expand...
Click to collapse
Well, this has ALWAYS been the sequence I use (and I don't think you can do it in any other way). The real problem here is either the buffer memory or processor load.
Click to expand...
Click to collapse
Then there is no A2DP problem, the only solution is to lower the overal systemload. Stop all programs you have running, disable every today plugin that need frequent updating (memory, battery meters etc.) Free up as much RAM as you possibly can. I have AT LEAST 16 mb RAM free when playing music via BT.

A2DP/AVRCP in Crossbow

Hello there.
I'm a newbie to using A2DP/AVRCP, sorry about that, but I have big issues.
I have huge lag when trying it out.
Specs:
HTC Universal
Midget's WM6 (Crossbow)
Radio 1.14
Bootloader 1.01?
Sony DR-BT20NX (really nice ones).
Anyways. I pair it up, no problemo at all. Tried a few calls. Works fine. Selected both handsfree and wireless stereo from profiles ofcourse.
So, I tried playing a movie in TCPMP. Audio and Video stutters every second. Tried playing a MP3 file in Media Player. Audio lag every second.
DAMN!
So, I went in to all these threads about A2DP/AVRCP in the forum (read them before) and checked out fixes etc. Everything seems to already be applied in this ROM. Priority256 value exists (in another folder though as described for another device, HKLM/BuiltIn/Drivers/WavDev I think)
What the heck can I do? I'm not comfortable applying different patches because I think A2DP support in every manner is already applied, so as the registry values.
HELP ME!!
Following the development/information on MS BT Stack change to Widcomm BT Stack on following links
http://forum.xda-developers.com/showthread.php?t=279236
http://forum.xda-developers.com/showthread.php?t=285419
http://forum.xda-developers.com/showthread.php?t=285696
http://forum.xda-developers.com/showthread.php?p=1073003
Any one know more?

Just a thought. Is it possible to deactivate SBC (recoding/decoding) of MP3's?? My Sonys support direct MP3 streaming.

http://forum.xda-developers.com/showthread.php?t=285419&page=20
Tried out BT Stack change for Hermes patch/program.
TEST RESULTS ON UNIVERSAL WITH WM6 (Midget aka Helmi unreleased)
Sound IS great. But other than that, this program does not work very well on my device. Of course this is designed for Hermes but I gave it a shot.
Issues:
1:
Screen flickers (only when this BT is turned on).
Flickers really bad and unable to use device.
Fix: set the device to standby (power button) and wake it up again. Flickering gone
2:
Once BT is deactivated for a few minutes I can't start it again.
Fix: No fix found yet. Only a Soft-reset and directly activate BT works.
3:
I can't use my GSM/UMTS connection anymore. Trying endlessly. Even after soft-reset's I can't connect. WiFi works fine though.
Fix: No fix found yet.
4:
Unable to uninstall this program. Tried several times. I get to the "Soft Reset Device Yes/Cancel". I soft reset, program still there and working.
5:
Hard-Reset, complete setup with WAP, MMS, MAIL etc.
Installed Widcomm BT Stack again.
Soft-reset:
Screen flickering (fix)
No 3G/UMTS connection avalible anymore. Even when BT stack is completly shut down.
We need a specific one for our Universal. Who's up to fixing this for us?
KEEPING this post updated.
EDIT 06: 18:40 @ 21/01/07

ANYONE into programming/developing interested in taking this as a sideproject so all of us Universal users can benefit from this great software?
PS. No, Nuclear (aka Infidel)! Pleace do not participate in other than testing. And if you do, please don't be too exited and write lies/bs in this thread. Thank you. Ta ta

I'm currently using Midget's WM6 with a set of Motorola HT820 bluetooth headphones without any problems.
In fact I've tried a couple of WM6 roms now and both have had working a2dp & avrcp and if anything quality is as good as the AKU3.3 I was previously running.
AVRCP & connecting up seems to be a little more reliable than the last rom as that would occasionally lose the pause control, something I don't think has happened on WM6 yet.
It might be worth trying your device with a different set of bt headphones to see if the problem persists.

Taz69 said:
I'm currently using Midget's WM6 with a set of Motorola HT820 bluetooth headphones without any problems.
In fact I've tried a couple of WM6 roms now and both have had working a2dp & avrcp and if anything quality is as good as the AKU3.3 I was previously running.
AVRCP & connecting up seems to be a little more reliable than the last rom as that would occasionally lose the pause control, something I don't think has happened on WM6 yet.
It might be worth trying your device with a different set of bt headphones to see if the problem persists.
Click to expand...
Click to collapse
Hmm. Headphones shouldn't matter, should it?? It's one thing if the sound in my headphones is bad, but it is the DEVICE that has problems actually outputting to the recoder fast enough. It works fine with the Widcomm!!

Taz69 said:
I'm currently using Midget's WM6 with a set of Motorola HT820 bluetooth headphones without any problems.
Click to expand...
Click to collapse
Did you need to do any extra tweaking on Midgets ROM to get them to work properly?

edeplano said:
Did you need to do any extra tweaking on Midgets ROM to get them to work properly?
Click to expand...
Click to collapse
i've hs-12W. I'm using it with midget's first vanilla crosbbow rom without any problems. without any tweaking.

I have tried the broadcomm stack on WM6 but couldn't get my jabra bt620s stereo phones to connect to both the headset AND stereo profile at the same time - if I connected it to the stereo profile, then it sounded great, with no log, but wouldn't act as a headset. If I connect it as a headset, it works fine, but all audio is mono, even stuff that shouldn't be. Should I be able to get this working for both at the same time?

Worked straight away without needing any tweaking.
Both stereo & phone headset work okay.
Also had Stereo configured with Universal and Phone paired with a hermes since getting a second data SIM and that setup is working okay as well.

Taz69 said:
Worked straight away without needing any tweaking.
Both stereo & phone headset work okay.
Also had Stereo configured with Universal and Phone paired with a hermes since getting a second data SIM and that setup is working okay as well.
Click to expand...
Click to collapse
Thanks Taz!
Is it true that this headset can store two pairing profiles (ie I can have them paired with my Qtek and my PC)?

Bluetooth headgear disconnect mid-call

Sorry if I'm posting a question that's been answerred before, but I haven't been able to find a thread to this problem:
sometimes my Nokia BH-102 will disconnect in the middle of a conversation in the car. The only option at that time is to pull the TP2 from it's holder and put it to my ear.
Whether it's the headset or the phone, I don't know, but it used to work in combo with the old Nokia E60 I used to operate......
Chances are it's the TP2, but how to fix it?
Only 'tweak' was to install tomtom, but without the 2 dll's which have been causing some problems.
Has anybody experienced anything similar?

Bluetooth visor problem
I have had problems with my headset - Supertooth Visor One Bluetooth Car Kit. Not quite the same as you though - the problems I have is that when I make an outgoing call, everything works fine but when I recieve an incoming call the audio stays on the handset rather than coming out of the bluetooth headset - which means I have to pick up the phone. I also have installed TomTom 7 and I had to do the 2 dll fix as my bluetooth was completely broken otherwise. So I guess maybe TT7 is responsible in some way. Only thing is, I dont want to do a hard reset to find out!!

I'd already read about the Tomtom BT-issue so I cleared the 2 dll's out of the cab prior to installation.
So the originals should still be in use. BT is/was working and I have been synching using BT. That's not the problem.
There should be threads out here pointing you to the original dll's. you could past them over the current ones and see if it helps.

I experiencing the same problem, and didn´t install tomtom.

So now it looks like it's a problem in the TP2 then.
Hopefully a BT-guru can investigate? This is way beyond my capabilities.
In the meantime I'll know what to do if and when it happens: take a chance on the cops seeing it and issuing a ticket.....

I'm having a similar issue, my headsets plural, have this problem. It will disconnect but what is happening is the headset is shutting down. If I hold the power button on the headset it comes back on and will work again.
If it was one headset I would think it is faulty but I've had this problem with three headsets and the Bluetooth in my car.
Is it possible that the phone is sending a shutdown command? BTW I am using the stock TMOUS 6,5 ROM and have tried some of the cooked ROMS with the same effect.

bluetooth paring problems WM6.5

Yesterdaty I updated to WM6.5 and now try to get everything working again. Somehow my TP2 won't pair with my bluetooth carkit anymore. With WM6.1 this was no problem. The phone still pairs perfectly with my computer (also bluetooth connection) so I think the bluetooth connection is ok.
When parining to my carkit it finds the device, then I have to enter a password on the TP2, and after that it just sais "pairing connection failed", and it will not work. I am sure the password is not changed since yesterday. I tried it several times. I do not know what to do anymore. Could this be a setting somewhere? I get the feeling my password is not send properly but have no idea.

Meanwhile I tried pairing my carkit with another phone and no problems there. So my conclusion is: something has changed with bluetooth, updating to WM6.5 which makes it now impossible to pair my TP2 with my carkit.
Is there maybe a programm for the TP2 which give me more controll over bluetooth (like maybe go to an older standard)?

I have exactly the same problem as you

good to hear I am not the only one. Hope someone will come up with a solution for this.

I did nor observed any issues when pairing my TP2 after reflashing to WM6.5
There is another issue however - I can not hear any voice until it is charging.
Unplugging of the charger fixes this issue immediately. Horrible...
Seems, HTC guys are saving money on testing by using us as Beta Customers.

Would a custom ROM be a solution for us?

I updated to the "energy 6.5.1 rom" and guess what..............
The same problem. The rom is very nice, but my TP2 still won't pair with my BT carkit which is very big problem for me.
Is there maybe a way to downgrade just the BT part of a rom to WM6.1. I read on different forums there is something that is called a BT stack. Could this be the problem?

I have a ton of problems with bluetooth pairing now. However, I don't know whether it's the fault of 6.5 or the Tilt 2. Here is what I am experiencing...
- On car deck or headphones, the skip buttons don't do anything
- on car deck or headphones, I have to disconnect Stereo Audio and then reconnect to actually get sound. It NEVER works when it auto connects.
- Music will do a brief skip when you shut the screen off
- Stupid message about volume control every time it connects (resolved by switching to custom rom)
- SMS or any kind of alert tone now turns music way down so that the tone is the only thing you hear. Which is super awesome when I'm driving my drunk friends around and they are singing along to a song when suddenly it mutes so everyone can hear my incoming text message.
Not a single one of these issues existed when I had my Fuze.

Same here
My bt headset (sony hbh ds970) and simply does not find the pairing...
I asume is a problem related to energy´s ROM

orb3000 said:
Same here
My bt headset (sony hbh ds970) and simply does not find the pairing...
I asume is a problem related to energy´s ROM
Click to expand...
Click to collapse
No I do not think so, because I used the official WM6.5 with the same problem. Does someone know a way around this issue. I strongly believe that if only I could pair I have some options to work with it (in 6.1 it worked like a charm). If I only could pair without having to send the passkey it would be great step forward. I presume with sending the passkey, the bluetooth of the TP2 sends out other "rubbish" that confuses my carkit.

My problem is solved and guess what, it had nothing to do with my TP2. The problem was my carkit. It has a maximum number of bluetooth devices (5) it can pair to and the last one (the WM6.1 version of my phone) had been reached. So a hard reset on the bluetooth carkit and the problem was solved.
Well, at least I now know how to flash a rom to my phone and I think I learned more about the phone reading through all the forums. Thanks all for thinking with me on this problem!

Does anyone else still have this problem?? I have removed all the devices from my car and continue to have the same pairing error just after entering the passcode. Stock Spint ROM worked great, but multiple 6.5 upgrades don"t pair..............suggestions/ideas??????

bluetooth settings, advanced, enable beam data exchange,check the box

Interesting.....I actually found a fix. Instead of pairing the phone with the car, I paired the car with the phone. I didn't even know that this was possible, but it did the trick!

Problem with BT stack

All of a sudden when I try to start BT or use a BT device I get an error saying BT can not be started because the BT stack could not start. If I soft reset I can then start BT without issue. I decided to just leave BT on over the weekend since I was driving and it connects to my car stereo automatically when on. This morning, I go to sync using BT and the icon is in the tray, but I get the BT can't connect error. Soft reset and works fine. What could be causing this?

Is this with the stock rom or a custom one?
I have also experienced this, but I build/flash custom roms so often, I never bother to track down or even research the issue.
Best regards,
-boggsie

In my sig, OEM AT$T ROM.

OK, I think I have found the problem. I have CleanRAM scheduled to run every morning at 7:45 so that my Tilt 2 starts the day fresh. It is configured to run a Level 2 cleaning. Apparently, this is causing some process to be shut down relative to the Bluetooth stack that then causes the error when trying to use Bluetooth. It doesn't shut down BT completely, so the Taskbar icon remains. I'll either have to drop CleanRAM down to Level 1 or just do a soft reset every morning to re-establish BT. I wonder if the developer of CleanRAM is aware of this issue?