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.

Headphone and Speaker work simultaneously

Dear experts,
Sorry if this question was answered before, but I've been searching through the threads and couldn't find one..
I have a WM5 Orange Artemis (SPV M650) and I'm facing the following issue: when I play music with WMPlayer I get sound both through the phone speaker and the usb headphones. This is the same case with a friend of mine having the same device.
Probably there is some sort of a software solution to this problem, since with the already-installed FM radio application there is a button you can use to activate the speaker or to redirect sound through the headphones only.
Now I'm not able to use my phone as a music player due to this problem so any help will be much appreciated. Thank you!
Ksu

Had this problem before, open up the volume slider part of the earphones with a small screwdriver (push on the plastic tabs that hold the 2 sides together) and separate the wires going into and out of it, I found some were crossing and moving them apart sorted it fine!
Hope this helps...

Thanks for yr reply Pjtheman, I will try this, though I will keep wondering if it were a matter of crossed wiring, why it works fine with the radio application!!
I'll open the headphones slider and see what I can find..
yours, Ksu

I've just opened the headphones slider and found that all the wires were duly isolated from each other..
Perhaps a solution to this problem is to install advanced volume controls that can mute and control the volume of the earphones and the speaker independantly. Does such application exist??
Thanks for yr help.
Ksu

Guys,
Has anyone here experienced the same problem?? Am I the only one? Would you pls try and tell me if you have the same problem? Thanks for your help..
Ksu

Problem with bluetooth A2DP headset

when I connected my JABRA BT620S with my spv m700 and started to play music with windows media player or other mp3 player, at first it worked well, while when I start to move(riding bike),in about 10 minutes, there always breaks happened. the voice firstly got lost, then appeared, then lost again... the gap happened about every 5 seconds.I've tried all versions radio, 3 different ROMs, seemed none of which can solved this problem. Can anyone plz help & give me a tip? Thx!

Try this fix. It gives the A2DP higher priority on the CPU, so that is continuously plays the sound:
http://forum.xda-developers.com/showthread.php?t=284974
However, it is known that A2DP AND Video at the same time is too much for the CPU of P3600. You may experience stuttering.

THANKS. I didn't run A2DP & VIDEO at the same time. Just want A2DP to work when riding bike. Hopefully this works.

A2DP Fix, I am challenged, did it work?
ehe333333 said:
THANKS. I didn't run A2DP & VIDEO at the same time. Just want A2DP to work when riding bike. Hopefully this works.
Click to expand...
Click to collapse
Today I am challenged understanding setting up A2DP on bog standard T-Mobile Vario II
Paired with Sennheiser VMX 100 Bluetooth v2.00 headset
PS: My Hermes device Registry entries match exact those given by Bepe

BT Motorola S9-A2DP Headset no sound
Hi, today I a new stereo BT wireless Headset have bought Motorola S9 (A2DP/AVRCP). According to the notebook he must be compatible with P3600 the Trinity and WM6. First 3 minut. hear I everything clearly, but afterwards start he each time for 2 a 3 seconds stick (no sound).
A someone solution, CAB- update or a well recommendation? Does someone have the same experiences?

dateboy said:
Hi, today I a new stereo BT wireless Headset have bought Motorola S9 (A2DP/AVRCP). According to the notebook he must be compatible with P3600 the Trinity and WM6. First 3 minut. hear I everything clearly, but afterwards start he each time for 2 a 3 seconds stick (no sound).
A someone solution, CAB- update or a well recommendation? Does someone have the same experiences?
Click to expand...
Click to collapse
And? Have you tried the cab I mentioned in this thread? If not, why?
http://forum.xda-developers.com/showthread.php?t=284974

Thanks, great fix !

thank you very much.
A related question:
It seems like bluetooth encrypts my audio files on my memory card. After a while i am unable to listen to them. But other files on the memory card remains fine. Has anyone experience this problem?

rs123456789 said:
thank you very much.
A related question:
It seems like bluetooth encrypts my audio files on my memory card. After a while i am unable to listen to them. But other files on the memory card remains fine. Has anyone experience this problem?
Click to expand...
Click to collapse
No, I guess there is something wrong with your memory card.
Are these WMA files with DRM?

8525 with wm6, bluetooth suddenly bad

Hay guys. I updated my 8525 to WM6 around Thanksgiving, and everything was great. I had no problems at all. I decided to whip out my old i-phono stereo bluetooth headset and try it out with the superior A2DP quality on WM6. It worked really well, though I decided to go ahead and remove the BitPool and MaxSupportedBitPool registry keys as well as most people suggest for increased quality. It worked really well up until yesterday when I tried using my headset, and everything went wrong. When the headset syncs with the phone, the phone starts facing a lot of slow down. The worst thing is that when I try to play music, the music stutters hella bad, and the quality is very low. It's almost like the phone is super busy type of poor playback, which can happen even without using bluetooth, though the problem is exacerbated when trying to stream music data to the headset.
Short of a hard reset, I haven't a clue what to do, or why it is doing it all of a sudden. I've already tried the task manager fix, and related .cab fix, but it did nothing for me. Really ticks me off....

WTF guys!?!

Same Problem Here I Think
I upgraded my 8525 to WM6, reinstalled all my aftermarket ware and suddenly the stream to my Motorola S9s is all static filled and has a very low volume. Everything else works great. Even the 4Gb SDHC card...
I've been all over the net looking for others with this problem and you're the first I've found.
I'm actively looking for a fix and will reply to this thread if I find one.

Hi Guys,
I have a simular probelm, I am Using Schaps WinMob6 3.56c Multi with a Motorola S9 BT Headset, on an HTC Hermes. The Volume iss ok, sound quality decent, what's driving me crazy ist:
As soon as I start playback everything slows down so bad that it is almost impossible to use the phone. Opening Opera takes about 60sec. Menus lag badly. I have tried playing with the settings nothing helps.
Setup:
Use Joint Stereo: Yes
Sample Rate 48000 (for some reason i can not change this)
Bit Pool: 86 (default)
Max Bit: 86 (default)
Changing the Bitpool seems to make no difference
To summ it up
Help would be appreciated!
If I find something that helps I will post it here ASAP,
Have a good one,
Chris

I honestly can't believe nobody has an answer...

Have U Read this http://forum.xda-developers.com/showthread.php?t=352054 ??
Grüsse,
Chris

Thanks, that helped a bit. Still no solution though...

BT Headset and navigate MP3s

I am usings Dutty´s 2.3 and my BT Headset Jabra Bt3030. Principal it works fine but if I push next or previous title or stop/play the display allways switch on and never goes into standby. It´s realy bad when I am carry my HD in the pocket. Is there any possibility or solution to fix this problem?
I am using the Original Rom from HTC before and this problem only happens with the start/stop button and not with next and previous!
Please give me your feedback!

You're posting in the wrong section.
Anyway, what music player are you using? Default Windows Media Player? or PocketMusic?

Sorry for the mistake. which section should i use?
I am using the TF3D music player.

I have the same headset but on a stock Orange UK ROM (using TF3D player)... When I change track the screen lights up briefly but I have S2U2 which seems to a) keep it locked and b) kills the screen pretty quick.... Not sure if that would help?

I do not like s2us. i use the standard phonelock but it do not solve the main problem! Seems to be that there is no solution available.

i have the problem that since a few days my buttons are completely wrong associated in mortplayer. if i tap "next" on my headset, windows media player launches and the screen turns on. when i use the tf3d player it works ok, but the player sucks. any ideas on that?

fuxl66 said:
I am usings Dutty´s 2.3 and my BT Headset Jabra Bt3030. Principal it works fine but if I push next or previous title or stop/play the display allways switch on and never goes into standby. It´s realy bad when I am carry my HD in the pocket. Is there any possibility or solution to fix this problem?
Click to expand...
Click to collapse
Sorry for pushing thes thread, but i have still the same problems with my BT headset. In the meantime i am using WM6.5 Dutty´s R4. Is there a solution for this kind of problem?