TYTN Stereo Bluetooth: POOR QUALITY!!! - 8525, TyTN, MDA Vario II, JasJam General

Hi,
I had the Cingular 8125 and I upgraded to the TYTN (shelled out the dough for it) only because of it's 3G capabilities and MAINLY because I wanted--needed Stereo Bluetooth. I have a pair of expensive 590A Plantronics Bluetooth Headphones and wanted to use them with the TyTn. Let me say, I don't know why, but the sound quality is not good. Anything with bass sounds crackly and distorted. And I know it's not the fault of the headphones because I've tried these headphones out on other devices (HP 6515) and they sounded great!
One more thing: what's up with using Micro SD? I went from SD (4GBS) to MINI SD (2GBS) and then MICRO (2GBS) but, seriously the size difference isn't remarkable and the phone could have held an SD card which would have made it more convienient when dealing with laptops and having larger capacities.
IF there are ANY tweaks or upgrades to fix this crappy sound quality of the bluetooth. PLEASE LET ME KNOW: my email is: [email protected]
THanks.

the wiki is your friend here...... the precise answer to your question is there.
also, beware that there are only a few A2DP headsets known to work well with the TyTN and your plantronics isn't one of them. This doesn't mean that it won't work, only that we haven't tested it. My notes thread details the known tested good headsets btw. Because of this, while the WiKi will show you how to improve stereo quality, you may not be able to fix your skipping issue.

Related

Bluetooth audio playback

Hi all
Just got the I-mate and a bluetooth headset. It works fine as far as phone calls are concerned. But I cannot playback audio (MP3's..etc) through it! Any clue?
Another thing is that the foldable keyboard for the XDA doesn't work with it! Is there a new driver?
The Pin Assignment from MDA and MDA II ist a little bit
different. Perhaps thats the reason....
CU
I believe that the bluetooth headset profile only supports voice calls. It's not able to listen to other audio.
although this may be possible with a software upgrade as the ipaq 5550 works perfectly for audio output through a bluetooth headset
yeah, i read that too..there are two patches available for the Ipaq: A free patch, the installation of which did not go through, and a commercial one that I purchased, and this disabled all audio output from the XDA-II!
I am sure there is a solution, just hope we woun't have to wait for long.
As for sound quality, I've read that it is a bit poor, but I still wouldn't mind!
Waiting for a genius
Any solution to this problem yet? I really want to play audio (in that case audio books from audible) via bluetooth.
check-mate said:
Hi all
Just got the I-mate and a bluetooth headset. It works fine as far as phone calls are concerned. But I cannot playback audio (MP3's..etc) through it! Any clue?
Another thing is that the foldable keyboard for the XDA doesn't work with it! Is there a new driver?
Click to expand...
Click to collapse
I've got the jabra 200 BT earset. It has a small cradle for use with phones with no BT support. Now that has what seems to be the same speaker jack as the earphone with the XDA II. So if you have a jabra just pair the headset with the cradle and plug the cradle into your phone. Not perfect but would be interesting to see if it works.
Please note I've not tried this.
mmm.. sounds logic, i think it would work. I heard there will be a new ROM edition with audio playback over bluetooth. No idea as to when, though

Poor BT Stereo (A2DP) quality?

I use a no brand Stereo BT headset on the Atom and found the quality is unacceptable poor. I just want to confirm if it's just me or it's a common problem for Atom.
I found the BT stereo quality very poor too. Tried
1. i-Tech S35
2. Gobalsat BT-830 (apart from stop/pause, AVRCP works fine with WM 10)
3. Nokia HS-12W (apart from stop/pause, AVRCP works fine with WM 10)
quality is way worser compared with the original headphone that came with Atom. I read somewhere this was due to the poor audio chipset used in Atom. Any way to fix that?
BTW, all the above 3 Bluetooth stereo headsets have excellent audio output when listening music from PC (using Widcomm 4.0.1.2800).
I believe it was due to the BT version used. I too tried
1. i-Tech R35 (V1.2)
2. Nokia HS-12W (V2.0)
When pairing both of them with Atom, the sound quality is not that good (always got hissing sound). The same applies when I use the i-Tech headset with my 818pro.
On the other hand, when I use the Nokia headset with 818pro (A2DP enabled), the quality becomes quite good (no significant difference from wired headsets). BTW, I think the Moto BT headset supports V2.0 too, and seems ppl around got some good experience with it and 818pro.
As I mainly use my Atom nowadays (my 818pro got the screen misalignment problem unfortunately), I already forgot about BT headsets.
From all you guys comments, I am not alone in having poor A2DP quality. It's a shame for giving out A2DP but unacceptable quality. :evil:
I-tech S35
Thanks so much for that information. I was really tempted to "upgrade" to an Atom from my Mini because the former had the built in bluetooth so it's a good thing to know I shouldn't upgrade because I was really after the A2DP functionality (since I thought the full release a2dp would be much better than the mini's "hacked" a2dp).
Maybe the stack used on the Atom is not that good. Have you tried upgrading the ROM?
[email protected]
what are u guys sayin ?
the quality of A2DP in my Atom (last ROM upgrade) is excellent !
and i do know how to appreciate the quality, cause i came from a V3x (quality was amazing too).
i am using the motorola HT-820.
the sound is much better than my crappy ipod video (to sell if someone interested) :arrow:
to fix ur problems, u should :
1- upgrade to the latest rom.
2- turn the crappy equalizer off (its a really useless feature)
3- when u go to bluetooth settings, hold ur bluetooth device and '' set as wireless stereo''
that may be the key for clearer sound.
also i didnt like the equalizer (am i alone ?) i found that the speakers are worse than ever.
what do u guys think? :arrow:
Re: [email protected]
goldsaint said:
what are u guys sayin ?
the quality of A2DP in my Atom (last ROM upgrade) is excellent !
and i do know how to appreciate the quality, cause i came from a V3x (quality was amazing too).
i am using the motorola HT-820.
the sound is much better than my crappy ipod video (to sell if someone interested) :arrow:
to fix ur problems, u should :
1- upgrade to the latest rom.
2- turn the crappy equalizer off (its a really useless feature)
3- when u go to bluetooth settings, hold ur bluetooth device and '' set as wireless stereo''
that may be the key for clearer sound.
also i didnt like the equalizer (am i alone ?) i found that the speakers are worse than ever.
what do u guys think? :arrow:
Click to expand...
Click to collapse
How's it compared with the using the original headset came with your Atom? For me, bluetooth A2DP is way worse.
I used the same i-Tech clip S35 on XDA 2i, and the A2DP qualitiy is as good as the wired headset came with XDA 2i.
Thanks.
Wired vs Wireless
ok, with the regular wired stereo headset the sound is Ok, but not that good if i compare to my ipod video.
i highly prefer the a2dp system as it seems ur inside a nightclub while using it.
but if i have to choose between the wired headsets or the HT820, i would rather go with the BT headset.
the only thing, is that dangerous for life ? (like getting brain cancer etc... wish not..)
As I mentioned before, I have tested all the combinations for 818pro, Atom (both with latest rom) and two BT headsets i-Tech R35 and Nokia HS-12W, and only found that the BT 2.0 combination, ie, 818pro with HS-12W, produces good enough music quality. For all other combinations, there is always some pretty obvious hizzing sound around when playing a soung. That hizzing sound is not background sound, as it won't appear if I stop playing any song. It only appears when a certain part of a song is played.
It seems to me that the hizzing sound is caused by insufficient bandwidth or over-compression of the data transmission (or both?). This also matches with my test result.
If I am using the 818pro (it is pending for repair), I will surely bring the HS-12W around. Otherwise, I will just stick with my wired adapter + Sony headset.
possible sol guys.
what is that ?
'' MSFP AKU 2.0 ''
it looks like a guy in another forum did an upgrade with this and got a superior sound etc...?
??? :arrow:
Re: possible sol guys.
goldsaint said:
what is that ?
'' MSFP AKU 2.0 ''
it looks like a guy in another forum did an upgrade with this and got a superior sound etc...?
??? :arrow:
Click to expand...
Click to collapse
AKU 2.0 comes with support for A2DP.
In the case for XDA Atom, A2DP was supported on the day O2 released Atom.
A2DP quality in Atom was poor regardless of the Rom version, I tried the following roms:
1. 20060123B1WWE
2. Xda-Atom-ENG-20060123_Feb2006_.exe
3. R060221N_MN1ARC_RS00045
4. DSUU_ARC_C060414WWE_R060327N_EX0016__test_only_not_for_sale
5. Xda-Atom-ENG-20060426B1WWE
As described by buruburu, hizzing sound appears when a certain part of a song is played. Turning On/Off the equalizer doesn't seem to have any effect.
When listening the same song using wired headset, the quality was good, so can't be the problem of the song I am listening.
When listening the same Song using my PC (BT 1.2 with Widcomm 4.0.1.2800 stack), the quality was good as well.
So, no problem with the song I am listening, no problem with the BT Stereo headset I am using, no problem with the BT version (1.2 in Atom, 1.2 in PC; don't have BT 2.0, so can't tell) I am using, and my BT headset works fine making/receiving phone calls.
Conclusion:
1. the BT stack in Atom has a problem;
2. the audio chipset in Atom was a cheap and lousy one;
3. my Atom has a problem (I am in UK, don't have another Atom to test)
If it's (1), hope someone can fix it!!![/i]
tcmp
forgot to tell u guys : i get good quality cause i dont use crappy windows media player to play my mp3s, i use TCMP for every file i have.
and it works a charm.
the only thing i dont get, is that sometimes during the song play, it stops for a second then go back to it.
wierd :shock:
Re: tcmp
goldsaint said:
forgot to tell u guys : i get good quality cause i dont use crappy windows media player to play my mp3s, i use TCMP for every file i have.
and it works a charm.
the only thing i dont get, is that sometimes during the song play, it stops for a second then go back to it.
wierd :shock:
Click to expand...
Click to collapse
Aha! Finally found this topic. I'm on O² Atom + Jabra BT620s. The headset sound quality is superb stable on pc (5mb limit Bluesoil). On Atom... WM10 sounds too low even volume maxed, the equalizer doesn't work on A2DP. The best is on TCPMP where I can blast the pre-amp to make it louder. The quality is "ok²", hisses are seldom but hiccups exists once or twice in wma/mp3 tracks and too bad headset playback function only work on WM10 not TCPMP. And to click my headset when answering calls, I've to set TCPMP not to play on background, after clicking, I've to increase the headset volume.
Does any of you guys who's using other than Atom experience hiccups on A2DP? And those with Atom other than goldsaint? I don't think it's Jabra's but Atom fault itself. I've only SmallMenuPlus and O²Plus running in background (all startup removed), no battery/space monitors on today and overclocked to constant stable 520Mhz with XCPUScalar on the latest firmware. Thank you...
Am using I-Tech Clip S with my ATOM and sound quality is EXcellent!!! No hissing sound at all.
I highly recommend taking a look at the following,
http://forum.xda-developers.com/viewtopic.php?t=54621
I had the same complaint, but these registry edits cleared up my quality problems almost entirely.
Tweaked the bitpool settings to 53 but did not recognize any improvement. The other 2 tweaks is useless for me-- whenever i used my I-Tech Clip S BT headset/wireless stereo, can't hear the other callers voice. Streaming audio to my Clip-S is OK but no noticeable difference.
Cheers
I've tried my two bluetooth stereo headset on HP-2210 , DOPOD 818Pro and O2 Atom,one thing is certain,the sound qulilaty in O2 Atom is worst and poor.I consider the problem is ROM Firmware.
Some of the tweaks cause more harm than good
I removed all traces of these tweaks by doing a hard-reset, and my bt stereo is just fine with the occassional break. 8)
IMHO we should not just apply every tweak just because someone posted :twisted: EG some one claims he installed Atom Exec ROM on regular Atom Now he has vamoosed when asked to share. Some one posted a 4-letter word due to the mess he had when he followed that line :twisted:
Not to go against the current trend, but I entered the following into the reg editor and it made a huge improved in the sound quality using the Samsung SBH-100 headphones.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2DP\Settings]
"BitPool"=dword:00000053
"SampleRate"=dword:00044100
Still get the occasional skip but fingers crossed something will come up to fix this soon.

Low sound quality with 6700 and Moto HT820 headset

Hi All,
I am new to the forum. I have owned a PDA phone for about a month, a Verizon (HTC/Apache/UT Starcomm/Audiovox) XV6700. It was rebadged so many times, I have no idea who really made it.
I read about A2DP Bluetooth technology. I also read reviews of several headsets before purchasing the Motorola HT820 headset.
I loaded up a two-gigabyte mini-SD card with mp3 files, popped it in, paired the headset to the phone and engaged Windows Media Player.
Unfortunately, the sound quality is horrible. It sounds as if I am listening to music played over the phone, as if I am on hold with some customer service call center. I know the headphones are capable of much more because they come with a stereo mini-plug cable. When I plug them into the audio output on my laptop, the headphones come alive with decent sound quality.
I did not modify my registry or add .cab or .dll files. When I paired the headset with the XV 6700, I just checked the "hands free," "wireless stereo," and "headset" options.
Am I missing something or is this the sound quality I can expect from this technology?
Dave
San Diego, CA
Make sure you have the new ROM update for the Verizon VX, and install the Tornado cabs and dll files.
A2dp on xv6700
I have updated my rom, made the Tornado changes, made other reg changes as described in this and related forums - all to no avail. Stereo Sound is constantly clipping. Phone sound is ok.
What else can I try
Feel free to email me direct.
You may want to try another player, like pocket player. Or try another BT stereo headset. If that dosn't work you may want to try getting your device swapped out with a new one. I can't get it to work on my PPC6700, but am waiting for a fix of the EVDO/ring through problem with newer units before I try to swap mine out.
xv6700 a2DP lag
I have already tried the pocket player - no difference. I am also on my second headphone set (albeit from the same vendor).
Unfortunately Verizon will not swap out because an unsupported feature does not work. At least that is what they told me.
Don't worry you are not the only one that can't get it to work.
The bluetooth on the 6700 is not very good, so YMMV when it comes to A2DP. It is a unsupported feature, you may need to convince them the BT is bad, but don't mention the A2DP.
I am waiting for a fix of the EV-DO ring through problem on the shipped PPC6700 with the new ROM before I have Sprint look at mine.
XV6700 A2DP lag problem.
Unfortunately without A2DP "enabled", the bluetooth connection seems to work just fine.
BTW: What is the EV-DO ring through problem?
http://forum.xda-developers.com/viewtopic.php?t=58050
It dosn't apply to Verizon VX6700, just the Sprint PPC6700.
Low sound quality with 6700 and Moto HT820 headset / A2DP
I am new to posting, be kind please. I have spent a lot of time and research on this problem and I am having some luck and some other problems that there may be some great info on. I do have the latest firmware from UTStarcom (Verizon model) which has AKU 2.0 update. I did install the tornado A2DP I found here and it did not work at first until I found the additional Tor_A2DP_cert.cab file and installed it. It works and seems to be stable, including headset operations. The only problem is sound quality. There is a ringing like high pitched digital noise, my experience in electronics would have me thinking of a bandwidth limitation, or timing issue that would be a result of process priority or something, just guessing! I have the Plantronics 590a stereo headset that sounds great when using the BT with my laptop, so I beleive it is with the phone. The big question, has anyone tried changing the registry settings concerning bluetooth? I see some entries here: HKEY_LOCAL_MACHINE\Services\BTAGSVC and HKEY_LOCAL_MACHINE\Services\BTHIDSVC don't know what they are or what they would do, not brave enough to change them.
try this link
http://forum.xda-developers.com/viewtopic.php?t=54621&highlight=a2dp
have the same problem
i have the same prob. i asked searched nothing could fix it yet nice phone sound just sucks
I am new to the forum. I have owned a PDA phone for about a month, a Verizon (HTC/Apache/UT Starcomm/Audiovox) XV6700. It was rebadged so many times, I have no idea who really made it.
I read about A2DP Bluetooth technology. I also read reviews of several headsets before purchasing the Motorola HT820 headset.
I loaded up a two-gigabyte mini-SD card with mp3 files, popped it in, paired the headset to the phone and engaged Windows Media Player.
Unfortunately, the sound quality is horrible. It sounds as if I am listening to music played over the phone, as if I am on hold with some customer service call center. I know the headphones are capable of much more because they come with a stereo mini-plug cable. When I plug them into the audio output on my laptop, the headphones come alive with decent sound quality.
I did not modify my registry or add .cab or .dll files. When I paired the headset with the XV 6700, I just checked the "hands free," "wireless stereo," and "headset" options.
Am I missing something or is this the sound quality I can expect from this technology?
Dave
San Diego, CA[/QUOTE]
I have two BT Stereo headset, 2 different A2DP devices, BT laptop, and a BT dongle and get different results with different combinations.
- Southwing SA505 Bluetooth Stereo Headset (works great with everything, questionable manufacture quality, broke after 3 months of use)
- Moto HT820 Bluetooth Stereo Headset (good quality, but BT functions & sound is problematic)
- Cing 8125 (running Faria Crossbow WM6)
- LG enV VX9900 (vanilla os)
I believe it is just a simple case of both Bluetooth software of your device and headset not getting along together.
The SA505 works perfectly and sound quality is awesome with all A2DP & BT remote devices (including both devices, BT laptop, and a cheap generic usb BT dongle installed on my desktop)
The Motorola HT820 on the other hand is quirky...
Paired to the 8125 - when listening to music, sound breaks briefly (for 0.5 - 1.5 secs) randomly every 30-60 secs. Everything else is fine including sound quality.
Paired to the vx9900 - it unpairs when getting a incoming call & I have to manually pair it back up. Everything else works fine including outgoing calls. Good sound.
Paired to laptop or BT dongle - works perfectly.
in short the only thing that could be done is on the handset side by changing the BT stack or rom.
hope this helps.
Just try MSI Blue Player, this is the only PLAYER which post a high quality sound to my bluetooth ear piece.
VX6700 and Bluetooth
Just as a friendly note, I had the Verizon VX6700 until last week. I had tried numerous bluetooth headsets with it and all seemed sub-par or totally unacceptable. The last one I tried was the Southwing SA505 and was, to say the least, displeased with the sound quality. I shelved all my bluetooth headphones and continued using the Motorola H700 earpiece for phone use only even though it was hard to hear in noisy environments, but was the lesser of all evils. Last week, I was available for upgrade from Verizon and got the LG Chocolate, took it home and put some music on it and used the plug in style headphones for the first day. After getting sore ears from the round-stuff-them-in-your-ear-hole type headphones, I decided to try the Bluetooth headphones again for the mere humor of having spent over $200 on the lot of them. The Southwing SA505 sounded phenomenal on the Chocolate. I then tried talking to my wife driving down the road with the windows rolled down and going 65 MPH, which had always been a problem before. She actually sounded like she was right next to me in crystal clear stereo (which if you have been married 21 years as I have, then you understand what a scary thought that is). I don't think the problem you are having is the headset but rather the phone and unfortunately I have no answer how to fix it, but hopefully have steered you in the right direction of where the problem lies. Good luck to you.

Audio quality: HTC default headset vs. Other wired vs. A2DP

Guys,
I've bought a 2GB MiniSD just to realize the audio quality of my Qtek is not very good - 192Kbps WMA sounds like a 32Kbps on my laptop. I am currently using the HTC headset that comes with the phone. So the options are:
- Headset is bad
- 'Sound hardware' is bad
So, can anyone share his experience of listening to music on Wizard. Would buying a better headset (like KOSS or Sennheiser) with a jack adapter help? Or is it the phone sound hardware that sucks? What about A2DP?
Thanks,
Ross
I've just bought a set of HP AD2P headphones off ebay:
http://cgi.ebay.co.uk/ws/eBayISAPI....name=STRK:MEWN:IT&viewitem=&item=140054575540
And they are excellent! Very impressed and excellent price (£23 inc delivery). Smaller and lighter weight than other bluetooth headphones I've seen. Came with AC adapter for the built-in lithion-iron battery. Apparently runs for about 8hrs.
I've also got a set of AKG K26 wired headphones (however you'll need a 3.5mm to 2.5mm adapter)
http://www.headphone.com/products/headphones/earpad/akg-k-26-p.php
The AKG K26 is renowned for fantastic bass so I was very surprised to find the HP ones were very comparable.
rkhomenko said:
Guys,
I've bought a 2GB MiniSD just to realize the audio quality of my Qtek is not very good - 192Kbps WMA sounds like a 32Kbps on my laptop. I am currently using the HTC headset that comes with the phone. So the options are:
- Headset is bad
- 'Sound hardware' is bad
So, can anyone share his experience of listening to music on Wizard. Would buying a better headset (like KOSS or Sennheiser) with a jack adapter help? Or is it the phone sound hardware that sucks? What about A2DP?
Thanks,
Ross
Click to expand...
Click to collapse
It's the A2DP implementation in AKU2 that sucks. Once a decent AKU3 (conversion) is released with built-in REAL AKU3 (not that of AKU2), the problems will go away.
Please make sure you check out the General forum here; I've posted several articles in there on these matters. Certainly worth a thorough read.
I have recently bought a plantronics 590A stereo bluetooth headset and have been very happy with the sound. My only advice is do research on your headset before you make a purchase because although the quality is very good on the 590A, it has a blinking blue light that continuously goes on, which makes the headset look quite wierd. Anyway, in terms of quality, it has been surprisingly pretty good.
Even with the wired manufacturer headset I got with my 8125 the quality wasn't amazing, but was better that you described.
I also have bought an adapter and used my own headphones, and again, not great, but not that bad.
Something may be wrong with your hardware, or search the forum for various registry tweaks to improve sound quality. If you can, I would definetly see if you can get another phone (through warranty), because the sound should not be that horrible.
now if this only had a microphone too....
rkhomenko said:
Guys,
I've bought a 2GB MiniSD just to realize the audio quality of my Qtek is not very good - 192Kbps WMA sounds like a 32Kbps on my laptop. I am currently using the HTC headset that comes with the phone. So the options are:
- Headset is bad
- 'Sound hardware' is bad
So, can anyone share his experience of listening to music on Wizard. Would buying a better headset (like KOSS or Sennheiser) with a jack adapter help? Or is it the phone sound hardware that sucks? What about A2DP?
Thanks,
Ross
Click to expand...
Click to collapse
I think it actually has something to do with the fact that the sound hardware sucks... I feel that any amount of bass or treble over the norm (even as little as +2dB) causes the thing to distort badly...
My old HP h2210 had an excellent sound chip in it, and also, i'm used to the X-Fi in my PC, and some sennheiser HD595s, so of course, it will sound poo...
TauTau said:
now if this only had a microphone too....
Click to expand...
Click to collapse
The 590A does have a mike - if you meant that.
zakhir_n said:
I have recently bought a plantronics 590A stereo bluetooth headset and have been very happy with the sound. My only advice is do research on your headset before you make a purchase because although the quality is very good on the 590A, it has a blinking blue light that continuously goes on, which makes the headset look quite wierd. Anyway, in terms of quality, it has been surprisingly pretty good.
Click to expand...
Click to collapse
Try listening to any music that has *human singing* in it and compare it to the quality through wires (when you do the same by connecting the 590A to the Wizard with the wire that comes with the 590A)
Unfortunately, the 590A, being probably the best stereo headsphone, is *very* sensitive to this kind of distortion.
Update
I've bought an AD-18 2.5mm to 3.5mm adapter from Nokia to try my Wizard with different wired headphones around my office.
First observation - the sound is much better with 'normal' heaphones (Seinheiser). I would switch to better conventional headphones immediately, however, the volume is really low and I don's seem to figure out how to get it up. Does it have to do anything with resistance? Was it the case for anyone else? May be it is the Nokia adapter causing trouble?
Ross
Actually, the audio hardware in the Wizard just sucks big time. I have a pretty high end audio system in my car. It also has a line input on the front for connecting an mp3 player or whatever (even though it already plays mp3 files). Anyways, I can connect my Wizard to that line in using a cable and the sound is really poor quality. Dynamic range is not very good and the high end is seriously cut off. I have to boost the crap out of it in TCPMP but still can't get it to sound right. I can play the same MP3 off a CD and the quality is much better, CD quality (I typically use high quality vbr encoding). I can take a cheapo $15 MP3 player we got for the kids and it has much better sound quality using the same cable and input so I know it's not there. I've also tried multiple 2.5mm->3.5mm adapters with no change. Different ROMs also don't seem to make a difference in it. I can only conclude, then, that it has to be the audio hardware.
I would like to find a device that uses the A2DP profile to sync with my phone and has a phono (headphone) or RCA output plug or jack so that I could hook it into my car stereo. Any one know of such a beast?
This is bad news. I have been digging around trying to find an adapter that would allow me to use the phone as my mp3 player, whilst allowing me to plug in an external powered mic, so I can can cradle the phone in a mount and get decent talk volume to my caller. In fact, I just order a 4gb card to get more of my library on the go.
I'll have to give my daughters iPod a try and see if there is any difference. As much as I hate iTunes, maybe I'll have to spring for a new iPhone. I would upgrade to the 8525, if not for the micro SD, which is yet another rant for me. It irks me to no end that every device I have seems to use a different card format. I think HTC is not doing right by the customer to go to the micro SD format. As it stands, I could not use my SX66 cards in my Wizard. I have a hard time believing the micro to mini would drastically change the form factor.
If you mean the voice portion is totally muddled... you either have a defective headset or a defective jack. I suspect that there's a short from the sound to ground...
Avatar28 said:
I would like to find a device that uses the A2DP profile to sync with my phone and has a phono (headphone) or RCA output plug or jack so that I could hook it into my car stereo. Any one know of such a beast?
Click to expand...
Click to collapse
Bit of an old post, but if anyone's interested, Connects2 does an adapter that is just as you describe. It is a BTAV01 Bluetooth interface for A2DP. Connects to any aftermarket radio with RCA connectors

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

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