Database Users

Bluetooth stereo quality

I was playing with my friends Atom the other night (and I have one on order myself) and I wanted to see how the bluetooth worked. So, I used a bluetooth adapter on a computer to become a stereo receiver for the Atom. While I had no problems getting the device working, the quality seemed outragiously bad. I was playing an MP3 in Windows Media Player, and the sound played over bluetooth sounded as if it had a high pitched squeel over it the whole time. With this kind of quality, I question being able to use a set of bluetooth headphones with the Atom. The quality was not a problem in the MP3, and it sounded find out of the Atoms speakers. Was I having some other problem, or is bluetooth stereo sound just this bad?

On mine it sounds better on BT stereo than thru' speakers :lol: Maybe your pc corrupted the soundz

Well, I suppose "better" could be rather subjective. But when using the PC as a stereo speaker it sounded bad. I imagine with that kind of sound on headphones, my head would explode out of sheer pain. I'm certainly willing to accept that my PC bluetooth software could be causing problems, but I'd like to hear what others think before purchasing a set of bluetooth headphones. I would be describe what I heard as if it had been overcompressed sound with horrible high pitched artifacts. Would you say that the actual sound being sent to your headphones was phonically the same, ignoring the quality of speaker vs headphones?

Remember "Garbage in Garbage out" :twisted:

The same MP3 played on the computer it's being transfered to via bluetooth (and therefore the same speakers) sounds perfect. What I'm wondering is if bluetooth stereo quality is as bad as I've just experianced, or if it was something outside the normal "headphone" system that was causing this (such as poor receiving software).

Fortunately tonight while browsing the forums I came across the following,
http://forum.xda-developers.com/viewtopic.php?t=54621
This completely cleared up my sound quality issues. Sounds like what I'd expect now. Hope this helps someone else.

Tell me. Which settings did you apply? All or some of them. There are so many inputs you cannot even know ehich is which :roll:
I changed only Bitrate:
Bitrate 53 increased the frequency of breaks to almost one every 5 seconds. My original was the default 30 which was just fine at less than once every 2-3 minutes.
Am currently testing 35. Hissing is gone, but the ocassional cut is still there @ once every 2 minutes.

Motorola HT820 + Trinity

Would the Motorola HT820 headphones work on Trinity?

They're working fine for me; the only tweak I did was to disable the JointStereo so I have proper stereo audio - there are a million threads about that around here, it's in the registry.
I have the SYN0948D model of the HT820, which I think is the newest, for previous ones there's a flash firmware update that may fix some skipping.

oh! Mind answering some questions for me?
How are they for music? Sound good? Any major problems? I use TCPMP for music.... will the controls work that are on the headphones themselves? How about the battery life (of the phone and the headphones?).
It seems the headphones also have a mic? Does that work with the phone?
Id appreciate if you could answer these for me... thanks!

The sound quality for music is certainly not what I'd call perfect.
Put it this way: I attached them using the supplied 2.5 -> 3.5 mil connector to my high-end audio card in my PC, and they sounded pretty good for headphones of their size.
However, when running over Bluetooth there is a noticeable drop in audio fidelity. I don't know whether to attribute that to the Trinity or to the headphones, but I suspect the Trinity. Maybe it's downmixing the audio?
There is a lot of A2DP tweaking you can do to find the best balance between audio quality and skipping/reception; I left it fairly close to the defaults for now, and I'll probably play with it more later.
The mic works with the phone and the audio quality for voice calling is outstanding. It sure makes a difference to hear a person in both ears - when I use them I almost never have to ask a person to repeat themselves. I haven't heard what anyone else sounds like when calling from the Ht820s, but friends say that they can hear a slight echo depending on the room I'm in. Makes sense because the room I usually call from is a smallish office/den with wood floors and lots of echoes.
I am going to fire up TCPMP right now to try to play a song with it. I've been using PocketMusic but it sucks balls...
Plays the song just fine, but it doesn't seem to support the next/prev track buttons at all. I tried to map them in the Hot Keys section, no dice.
PocketMusic and WMP both seem to work with the buttons, for what that's worth.
If you need anything else, just PM me like last time.

Yah I tried pocketmusic... it blows. I use tcpmp for everything. I suppose I can just use the controls on the phone itself.
I currently use the shure buds.... I hope Im not too used to the great quality ive been getting on them.

Anyway to increase Bluetooth audio output?

I use my Advantage quite a bit on my motorcycle, for listening to MP3s, GPS output, etc. And this is done via Bluetooth to my motorcycle helmet. However, when wearing earplugs the max audio output is a bit too low. Using a straight audio cable out of the Advantage is better, to where I actually need to turn the volume down some. But I'd prefer to use the BT output, but was wondering if there's any way to increase the audio volume that way?

You did not say what BT earpiece you are using, but I almost never have the audio all the way up on my Jabra BT8010. I believe almost all the problems using them have been solved (search "priority256_fix").
For wired headphones, try a Boostaroo.

I'm actually using it with a Chatterbox GMRS X1 Bluetooth unit, not regular headphones or a Bluetooth "headset".

Hi
Have you tried the following:
Bluetooth earpiece volume:
HKLM\Software\Microsoft\Bluetooth\AudioGateway\Spk Volume
(DWORD:10)(Default:5)
posted in http://forum.ppcgeeks.com/showthread.php?t=7715
by bingcrosby -perhaps via doris Stokes
let me know if it works- haven't tried it myself
Cheers
Daryl Mushtaq
http://www.imaginarynumber.co.uk/

imaginarynumber said:
Have you tried the following:
Bluetooth earpiece volume:
HKLM\Software\Microsoft\Bluetooth\AudioGateway\Spk Volume
(DWORD:10)(Default:5)
posted in http://forum.ppcgeeks.com/showthread.php?t=7715
by bingcrosby -perhaps via doris Stokes
let me know if it works- haven't tried it myself
Click to expand...
Click to collapse
No, I haven't tried this option - thanks for pointing it out! I'm curious if I'd lower or increase the Default value to increase Bluetooth volume - does a higher number equate to louder?

i would assume that louder-= higher volume
far too pissed to do it myself right now.
to be honest i think two years with an iriver h320 using the korean firmware has melted my ears....
btw if you dont have a reg editor you can download the resco super dooper trailware- think that the reg editor still works after the trial period expires 9r go for kilmist.
goodluck
Daryl Mushtaq
http://www.tearstains.co.uk

imaginarynumber said:
Hi
Have you tried the following:
Bluetooth earpiece volume:
HKLM\Software\Microsoft\Bluetooth\AudioGateway\Spk Volume
(DWORD:10)(Default:5)
posted in http://forum.ppcgeeks.com/showthread.php?t=7715
by bingcrosby -perhaps via doris Stokes
let me know if it works- haven't tried it myself
Cheers
Daryl Mushtaq
http://www.imaginarynumber.co.uk/
Click to expand...
Click to collapse
Thanks alot ya man, but it didnt work ... nothing changed

this is somewhat on the other side of the coin regarding what i did to solve this same issue i had. i use bt as well when riding my bike. the bt unit i use is itech and the headphones can be changed. what i plug in noise cancelling headphones (senheiser) which thus keeps the sound really crisp and loud. to the point where i actually have to lower the volume to prevent my ear drums from exploding =) so this is not an application solution but more on a hardware point of view.
just my 2 cents

Music output Quality is Pathetic.. I stand corrected please.

Load Music, connect the earphone and the output sount quality is pathetic/worse even compare to the XDA ATOM/Exec or for that matter any other WM device I owned in past. On the other side the speaker output quality is still OK. The sound through the earphone ecos..sometimeit the voice goes low and instruments are high... normally this happens when you switch on the 3D surround on other devices like samsung Innov8. But the in X1 the quality is worse.. I even took it to the sony service they reloaded the ROM a fresh but the problems still remains. IS IT THE ACCEPTED SOUND QUALITY FROM X1. How about other owners .. do they get better sound output/quality through earphone. Is there anything I am doing wrong, Kindly suggest.

really? i find the music quality more than good enough. what headphones are you using?

The Headphone quality is f*cking good!!! I havn't heard this kinda bass on my I-Mate Jam or HTC TyTN II.
One thing is correct, the quality of the original earpieces is bad.
I got ones from creative. The one that go into you're ear.
The speaker quality..... Don't talk about it. Hate it

I'm using Sennheiser CX400 earphones and the sound quality is actually better than my iPod 5g.

Player software
jsbutran said:
Load Music, connect the earphone and the output sount quality is pathetic/worse even compare to the XDA ATOM/Exec or for that matter any other WM device I owned in past. On the other side the speaker output quality is still OK. The sound through the earphone ecos..sometimeit the voice goes low and instruments are high... normally this happens when you switch on the 3D surround on other devices like samsung Innov8. But the in X1 the quality is worse.. I even took it to the sony service they reloaded the ROM a fresh but the problems still remains. IS IT THE ACCEPTED SOUND QUALITY FROM X1. How about other owners .. do they get better sound output/quality through earphone. Is there anything I am doing wrong, Kindly suggest.
Click to expand...
Click to collapse
The headphones supplied with this phone are suprisingly high quality ones. I have my own Phillips branded ones however.
Aside from the headphones, I think you issue is with the software you use. I found that WMPlayer is pretty crap when it comes to playing my favourite tracks. I use PocketPlayer and also Pocket Music, which have some very good equaliser functions. They make a big difference.

I also find the sound quality f*cking good!!
I expected the worse because it's a WM device, but it exceeded my expectations. Also using Creative ear-ins (EP-630)

I think there is a bug in the Sony Media Player software that can result in a seemingly poor quality sound output.
I've found that when opening the media player for the first time and playing a track the soundstage of the music sounds like its collapsed (lacking any high end or openess in the stereo image). If you then tap pause and then play again all of a sudden the soundstage opens out and the sound quality is very good.
Since I've turned on the "clicking" noise for screen taps, the above bug doesn't occur so often.
However, if I receive a call whilst listening to music after subsequently hanging up the bug re-appears.
Anyone else getting this?

yoboj said:
I think there is a bug in the Sony Media Player software that can result in a seemingly poor quality sound output.
I've found that when opening the media player for the first time and playing a track the soundstage of the music sounds like its collapsed (lacking any high end or openess in the stereo image). If you then tap pause and then play again all of a sudden the soundstage opens out and the sound quality is very good.
Click to expand...
Click to collapse
I have this too, but I don't think the bug is mediapanel related only.
I get this when I use S2P, Wmplayer and the media panel.
Sounds almost like flat mono before I tap pause and then play again..
I don't see this as a huge bug, but it can get annoying.
It depends on the mood I'm in..

can anyone compare the speakerphone to a nokia n73 or n70?

It's definitely weaker than the N73 one.

so much so its sickening or just a tiny bit? how bad are we talking about here :S?

I was expecting this thread to be about the poor speakerphone quality.... which it is. I know of no WM phone with a good speakerphone so I wasn't expecting it to be as good as my N95's. However, music through headphone jack is as good, or perhaps even better than my N95 (not as much background hiss as the N95). I use Shure SE430's (pretty expensive earphones) and I find the music playback to be quite good. I even hook the X1 up to my Logitech Z5500 speakers through the Line-in jack and I can pretty much DJ a party with the phone and it sounds as good as if the songs were being played off my computer. (This is all through the SE Multimedia Panel btw. I get similar results with CorePlayer or Windows Media Player).
The only problem I have with the media panel is I can't receive calls with it open. That may or may not be a plus/minus to some people, but I guess it's ok. When people call me, it goes straight to voicemail. The only way I can receive calls with music playing is to go back to the today screen (with the music still going), which works out ok too, since I hold the end key to lock the phone, which brings it back to the Today screen before locking.

worst audio player?? are you kidding?
sorry, but thats definitly NOT TRUE.
***************************
the x1 has got the best and most powerfull audio out, i`ve tested. (but not compared with n70/73)
i wrote it few days ago in the accessoires threat.
i use the Ultimate Ears Triple.fi 10 Pro Inear
with 3 drivers/speakers per earpiece. (like a 3 way oldschool musik speaker)
i`ve tested my ue10pro headsets with a lot of other mp3 players and mobile phones.
but the X1 is the first player, who can unleash the power to drive the UE 10 pro to there limit....
only my sondcard a creative x-fi has got enough power to blast your ears/tympanic membrane....
the base is unbeleavable! the headset can go down to 10hz. and the high tones are crisp, sharp, clear. but a little
to soft from the middle to the highest frequency. but this could be fixed with the equalizer/audio booster.
if you set the first base frequency to +12 and the second slider to -10, you can formerly 'feel' the extreme deep bases.
you cant beleave, that you are not in a club!
don`t use the x1+ue10 for longer time on maximum power. thats very risky for your ears. trust me.
the only thing is, you have to use coreplayer and calibrate the equalizer.
or use a new custom rom (touch it hd) with integrated audio booster.
holy ****, that rulez!!
Ultimate Ears Triple.fi 10 Pro Inear (~300$-400$)
http://www.ultimateears.com/_ultimat...escription.php
these devices with othoplastic, spezially for your ears. and a laser burns your name into the headsets.
if you have 900$ bucks into your pocket, take a look at that:
http://www.ultimateears.com/_ultimat...escription.php
or 1150$? with 4 audio drivers/speaker per ear!!
http://www.ultimateears.com/_ultimat...escription.php
this is the last headset you buy! the cables are replaceble with translucent cables and iphone button.
no more broken headset cables/wires.
my advice, use coreplayer. DONT adjust the equalizer/tone faders more then 12 db.
you will be surprised.
(core is able to adjust more than 12db/slider. more then 12db will bring disharmonies and ugly subtones and crickeling)
(the audio booster could only adjust 6 db. thats not enough for xtreme bases.
but dont use in coreplayer the 2 lowest faders both to +12. thats to much base and
the headsets and the power amp will be very unprecise and roar/rumble and you run into danger to burn the headset
for good kickbase decrase the lowest fader to -3 and the second fader to +12, the 3th to +6. increase the high tones 1-4 db.
for good ultra deep base drums, set the lowest frequenzy +9 or +12, and the second one to -2, the third 0 db.

i have a ultimate ear fi 5 pro headphones with two driver lower is range then DOMin8or tri fi 10 pro. i get quite good results but not on the default player. I only use touch flo 3d in -built music player with audio booster, if you know how to set it , i guarantee you get better sound then walkman phone. i prefer bass and vocal no to be so dull. get the touch flo 3d music player set it to rock mode first then try to made this mode to v shape by just shifting the first two bar to be same as the last two bar, trust me even if you are using your default headphones, you will notice the difference

billybobjones said:
can anyone compare the speakerphone to a nokia n73 or n70?
Click to expand...
Click to collapse
speaker phone n95 8gb i think is the best

try this setting on audio booster

possibly, but i will it verify by my own. for me, this is the best combo i`ve tested. and ths x1 has got exactly that power, i`ve searched for. more power will destruct my/your ears
i like this unhealthy power of X1. and at 90% power, the sound is very precise and defined.
and 90% is my personal max. and i like it loud. but 100% ? not with me. *G

audio booster has got other cross over frequencies. so my advice/hint could not used with audio booster. audio booster has a range of +-6 db. thats not as good as cores +-12db(possible +-18, but most time useless. only for spezial noise filtering. for example in microphone recordings)
the most players output power broken down, if i increased the base and at high volume.
with other players, you can formaly feel the missing amp power. (ipod nano iv suuuxxxxxx,cheap no name mp3 player,orbit,diamond,nokia 6233, creative zen v plus. but zen v was the best.(not the best menu, but good sound quali)
but now the x1 is my favorit device)
imho the x1 has got a good power amp.

im not sure will it fit everyone style but after some tunning i think this settings best for me to go for on default earphones, i have been looking for post how to optimized sound quality, here is one, hopefully more will share there experience, i bought the x1 because of the 3.5mm connector if x1 doesnt has it i wont even look up to x1!

DOMin8or said:
audio booster has got other cross over frequencies. so my advice could not used with audio booster. audio booster has a range of +-6 db. thats not as good as cores +-12db(+-18useless)
Click to expand...
Click to collapse
i have a coreplayer as will DOMin8or would you post some screen shot about the 12db settings? wanna see will it rock my 5 pro

Stereo Bluetooth sound quality - how to improve it?

Hi,
I recently got a set of Sony Ericsson HBH-IS800 Bluetooth headphones.
They're really slick and really convenient, but the sound quality I'm getting from the standard mp3 player just isn't great. There's quite a lot of noise, to the point that it is distracting.
I have used Sony in-ear phones for years, and IMO they're pretty good. These are significantly lower in quality, but I can't believe it's a hardware issue, Sony wouldn't have made a set of premium phones that much worse than all their wired equivalents.
I also know the player is capable of better quality, as I've used it with wired headphones.
Any clues on how to improve the BT audio performance? I can't believe this is as good as it can get.
Thanks in advance for any help - I'm sure you guys will come up with the goods

if you go HERE http://montecristoff.webs.com/hdtweak.htm and download the HD tweak....once youve installed the .cab onto ur phone and started it, there will be a choice to tweak some of the settings for your bluetooth...and im sure it will solve ur problem. the program has so many tweaks..its great, i use it myself.

Petee said:
Hi,
I recently got a set of Sony Ericsson HBH-IS800 Bluetooth headphones.
They're really slick and really convenient, but the sound quality I'm getting from the standard mp3 player just isn't great. There's quite a lot of noise, to the point that it is distracting.
I have used Sony in-ear phones for years, and IMO they're pretty good. These are significantly lower in quality, but I can't believe it's a hardware issue, Sony wouldn't have made a set of premium phones that much worse than all their wired equivalents.
I also know the player is capable of better quality, as I've used it with wired headphones.
Any clues on how to improve the BT audio performance? I can't believe this is as good as it can get.
Thanks in advance for any help - I'm sure you guys will come up with the goods
Click to expand...
Click to collapse
Try increasing the BitPool in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2DP\Settings or by using software like sktools

You have to chnage the bitpool value in the registry:
HKLM/Software/Microsoft/Bluetooth/A2DP/Settings
Bitpool put 48 or 58 (the higher the better) but 58 might be too much for the IS800 and it might stutter.
UseJointStereo put 0

I have the same headset and problem. It sounds terrible for such a premium headset. My old Sony HBH-DS980 headset sounds so much better than the IS800. I really hope this isn't a hardware problem. I'm going to try to tweak to see if that helps.
Edit: I tried the tweak and it doesn't make a difference. If I cannot figure out how to make it sound better, I might end up returning it. It's not worth the price I paid for it.
Can you also let me know if the right side sounds louder than the left side on your headset? Mine seems to have this problem.

starbuck123 said:
Edit: I tried the tweak and it doesn't make a difference.
Click to expand...
Click to collapse
What do you mean by "tried" ? Have you edited "Bitpool" parameter to "High" ? Have you soft reseted ?
Increasing Bitpool does an audible difference. By default, it is too low, and stereo Bluetooth sound horrible (noise and high pitch distortion).
But, by increasing it, you may have skip or stutter.. I posted another thread with my troubles with Bitpool vs skip.

Logan5 said:
What do you mean by "tried" ? Have you edited "Bitpool" parameter to "High" ? Have you soft reseted ?
Increasing Bitpool does an audible difference. By default, it is too low, and stereo Bluetooth sound horrible (noise and high pitch distortion).
But, by increasing it, you may have skip or stutter.. I posted another thread with my troubles with Bitpool vs skip.
Click to expand...
Click to collapse
Is "SampleRate" the same as "Bitpool" I don't have a "Bitpool" setting under settings. I changed the samplerate to "58000" and jointstereo to "0".,did a softreset and it made no difference in sound quality/volume. I'm beginnning to think it's a hardware problem. I didn't have this problem with my previous bluetooth headset.

starbuck123 said:
Is "SampleRate" the same as "Bitpool" I don't have a "Bitpool" setting under settings. I changed the samplerate to "58000" and jointstereo to "0".,did a softreset and it made no difference in sound quality/volume. I'm beginnning to think it's a hardware problem. I didn't have this problem with my previous bluetooth headset.
Click to expand...
Click to collapse
This is not good. Bitrate should be 44100 or 48000 only and has little effect on listen quality. You have to change "Bitpool". HD Tweak does have Bitpool parameter. Keep searching.

Logan5 said:
Increasing Bitpool does an audible difference. By default, it is too low, and stereo Bluetooth sound horrible (noise and high pitch distortion).
But, by increasing it, you may have skip or stutter.. I posted another thread with my troubles with Bitpool vs skip.
Click to expand...
Click to collapse
Found this thread, and tried the "turn off headset" fix. This worked.
starbuck123 said:
If I cannot figure out how to make it sound better, I might end up returning it. It's not worth the price I paid for it.
Click to expand...
Click to collapse
No need to return it - it sounds great now, and definitely comparable quality with other phones.
Just need to figure out why it's dropping out so much - something about me or my clothes is interfering...
Cheers
Pete

if you have put 58 in the bitpool settings that's the reason of the droppings. Lower the value to 48 it will work properly

I'm using HDTweak, which just has "Very High", "High", "Medium" etc.
I've put it on medium and it still happens.
I actually think it's my body and clothing blocking the signal, which leads me to believe the BT transmitter in the HD is really weak, or the receiver in the phones is really weak...

I've got my Bitpool set to 48. I can walk around the flat listening to music with the HD in the living room and the sound stays just as good. This is with several walls in the way.
I noticed a substantial improvement when I went from 30 to 48. The sound had been thin and dull before, although not so bad I couldn't stand it. Now it's much fuller and there's a lot more bass too.
I haven't set JointStereo to 0. With mp3 encoding this is actually quite a useful setting, it just means that it doesn't bother encoding the bass separately for each channel. As bass fequencies aren't directional, i.e. our ears can't tell where they came from, it's a handy way to save some bandwidth. I'm assuming that JointStereo means the same here. Having said that I haven't tried changing the setting to see if the sound improves still further.
I'm using the Jabra BT3030 btw.

Petee said:
Found this thread, and tried the "turn off headset" fix. This worked.
No need to return it - it sounds great now, and definitely comparable quality with other phones.
Just need to figure out why it's dropping out so much - something about me or my clothes is interfering...
Cheers
Pete
Click to expand...
Click to collapse
Please can you link this thread you're talking about?
THX

Good thread, I picked up an FM bluetooth transmitter for my car, sound quality is OK not FM quality for sure.
I was looking at my bitpool setting, it is set at 80 as well as the maxbitpool setting is 80 as well. Dropped it to 58 for both to try it out (will do so later).
Also changed jointstereo from 2 to 0. Frequency is at 48000, should I try 44100?
Also does anyone know how I can force a quick reconnect, when I go from ACC mode in my car to starting it up, it disconnects the bluetooth receiver from my phone then my phone starts playing music out of it's speaker...was wondering if there is a setting to reconnect within a second or two.

asci said:
Please can you link this thread you're talking about?
THX
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=457331&highlight=bitpool
Cheers
Pete

Petee said:
http://forum.xda-developers.com/showthread.php?t=457331&highlight=bitpool
Cheers
Pete
Click to expand...
Click to collapse
I read that thread, it means that I should desable hands free option?
THX so much!