Poor BT Stereo (A2DP) quality?

[jackleung]

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.

[storm99]

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).

[buruburu]

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.

[jackleung]

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:

[wsabido168]

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).

[Mvmajorem]

Maybe the stack used on the Atom is not that good. Have you tried upgrading the ROM?

[goldsaint]

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:

[storm99]

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:
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.

[goldsaint]

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..)

[buruburu]

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.

[goldsaint]

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:

[storm99]

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:
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]

[goldsaint]

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:

[Nazar78]

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: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...

[wizard327]

Am using I-Tech Clip S with my ATOM and sound quality is EXcellent!!! No hissing sound at all.

[Goodge]

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.

[wizard327]

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

[cobrasu]

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.

[victoradjei]

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 :P 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:

[jeremy_elman]

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\A2 DP\Settings]
"BitPool"=dword:00000053
"SampleRate"=dword:00044100

Still get the occasional skip but fingers crossed something will come up to fix this soon.

[hsanghavi]

I have a Jabra BT-250v which Jabra confirms is A2DP compatible :) but on the Atom it does not work on the Phone :cry:. Whenever I search the headset it shows as Hands Free Only. Can anyone Help :?: Can anyone tell me if we can use this headset on the Atom for Voice Dialing and MP3 hearing please :?: . If you have the clarification please tell me in detail as I am a fresher with Pocket PC phones and need more help. :!: :!: :!:

THANKS IN ADVANCE :lol:

[mojtaba2741]

Hi to all,
I have HBH-Ds970 sony ericsson (http://www.sonyericsson.com/spg.jsp?cc=us&lc=en&ver=4000&template=pip5&zone=pp&pid=10394)bluetooth headset,I have 2 problem with this headset:
1-when i have an incoming call during a music listening with my headset,i couldn't hear anything,and no communication occured,and i couldn't listening to my music again,indeed i couldn't hear any sound from my head set,i had to restart my headset,
http://i13.tinypic.com/2efq8hl.jpg
2-during a listeing music with a headset,i couldn't run any program,beacuse of lower speed of my device,i couldn't see any video with TCPMP and using my headset at the same time,
have you any opinion?
My device is atom exec,