Related
Given the extensive posting about A2DP on the Wizard, I was a little bit surprised not to find anything about this problem:
When streaming music from windows media player, the sound sometimes starts playing back slower or faster - thus changing the pitch. Sometimes as much as a step and a half (like from C to A). Clearly noticable in other words.
Now is this because of the Wizard, or the Jabra BT620s? I googled, and I found one other person complaining about something similar - but when using an iPod.
With default settings, I was getting drop-outs every 2 or three minutes...
I was able to tweak reg settings some:
A2DP\Settings\BitPool = 45 (60 sounds great, but only for a few seconds)
Drivers\BuiltIn\BtA2dpSnd\Priority256 = 60
AudioGateway\Capability = 69
I use Shogunmark's Cingular based 2.26.10.2 ROM.
Any thoughts?
Hey I'm getting the same effect with my NextLink Spider stereo bluetooth set...
Something tells me its just the processor speeding up and down, or something with the transfer to the headsets and codecs. I wanted to check whether it was VBR music files (variable bit rate) that were doing it, but since that usually only affects quality I don't think it is related.
Its obviously not a big deal, it can be kinda funny sometimes =P ... but I am curious as to why its doing that and if it can be corrected !
So basically I'm just lettin ya know you're not alone with the ipod guy!
(I have a cingular 8125, and I just switched over to a tmobile MDA (8125 is waaay to bulky), so i'll let you know if the new phone does it too!)
Good to know it also happens on the MS BT stack. This is a common problem with pre-WM5 Widcomm-based devices (see my A2DP-related articles).
Ok, so I'm not alone... Funny how that makes me feel better.
I'm still looking for a solution to all this. I guess if this is because of bandwidth limitations, it would make sense to lower the BitPool setting.
I'm going to try to dial in the best settings, by trial and error...
I sure hope MS can improve the BT stack some more.
this is to do with the buffer,when the muisic stops because of interference the wizard carryon sending the muisic to the buffer,problem is the when the interference stops the muisic track is seconds ahead of the buffer ,so the muisic is rushed out in order to receive new data.this seems to be a problem with the proccessing units in the headphone and not in the ppc itself.this also happens in aku3 roms.
yup i got the same prob... i took it that it was the headset and not the xda, the slowing down i thought was it thinking hmm im running out of music so ill slow down until i get some more so this guy can still hear something damm anoying im finding the whole bluetooth thing not worth the hastle.
All i want to be able to do now is get talk button on the wired headphones to start up the voice dial and then i can have what i want just with a wire.
faria said:
this is to do with the buffer,when the muisic stops because of interference the wizard carryon sending the muisic to the buffer,problem is the when the interference stops the muisic track is seconds ahead of the buffer ,so the muisic is rushed out in order to receive new data.this seems to be a problem with the proccessing units in the headphone and not in the ppc itself.this also happens in aku3 roms.
Click to expand...
Click to collapse
Hmm, yeah that was my thought as well. It reminds me of old tape based Walkmans with bad batteries.
Does anyone know the equation behind the BitPool registry entry? At 30 vs 45, the sound quality is pretty bad, but with less pitch changes and / or dropouts. At 60 the sound is fantastic for a few seconds before the problems start. It appears that even increments of 15 (i.e. 30, 45, 60) at the time works better than numbers like 34 or 42 - it results in more conversion artifacts. I assume the BitPool settings determine Bit resolution and Sample rate...
Right now, I'm listening to internet radio at 64Kbps with no problems. So as far as I can tell the lower bit rate sources work better. Maybe also fixed bit rate over VBR.
Oh, and what is the AudioGateway\Capability number for?
With my current settings 128Kbps files play fine, but 160Kbps files do pitch change thing...
I have looked all over this forum and there seems to be no obvious fix for louder and better sound quality. I am not a programmer (first day poster) and I am looking to fix these issues: The units speaker for listening to phone calls is not loud enough when there is a lot of road noise. The supplied headset is also not quit loud enough and the sound quality is not quit high enough for listening to music. Are there any cheap - like free - and easy fixes for these problems, and can a newbie like me fix them? Or, should I just learn to be happy with what I have now? Any information would be appreciated.
JBA said:
I have looked all over this forum and there seems to be no obvious fix for louder and better sound quality. I am not a programmer (first day poster) and I am looking to fix these issues: The units speaker for listening to phone calls is not loud enough when there is a lot of road noise. The supplied headset is also not quit loud enough and the sound quality is not quit high enough for listening to music. Are there any cheap - like free - and easy fixes for these problems, and can a newbie like me fix them? Or, should I just learn to be happy with what I have now? Any information would be appreciated.
Click to expand...
Click to collapse
Might be something here?
http://forum.xda-developers.com/showthread.php?t=295074
Mike
http://www.mobilecityonline.com/wireless/store/productdetail.asp?productid=23279
So, it comes in red and can connect to more things....i guess thats important.
The only real useful thing that seems to come out of it is the improved earhook and buds. I hope they sell those so i can use with my Z9.
Anyone who gets one of these please write a review as to how it comares to either:
- The original Z9
- The original Jawbone
- The new Jawbone
The Z9i is supposed to be better with wind/noise cancellation than the Z9, however my e-mails to BlueAnt customer service asking them to provide any sort of data sheet/information on how or by how much this was improved hasn't met with any response.
Thx.
yes i am also intereted, i have the Z9 and i am verty happy with it, the only complain is the battery, and the ear bud, since it ripeed off on me because i fell alseep with the bluetooh on my ear and when i woke up the gel ear bud ripped off....
Got mine today.
bengalih said:
Anyone who gets one of these please write a review as to how it comares to either:
- The original Z9
- The original Jawbone
- The new Jawbone
The Z9i is supposed to be better with wind/noise cancellation than the Z9, however my e-mails to BlueAnt customer service asking them to provide any sort of data sheet/information on how or by how much this was improved hasn't met with any response.
Thx.
Click to expand...
Click to collapse
Hey guys just got mine in the mail at work today, charging as we speak, I'll report back after I run some tests here.
Tested voice isolation.
I did a test on my drive in this morning. I called myself and left a voice mail to conduct the test. All the tests are performed driving on the Highway driving 80 m.p.h (128.75 for the rest of the world). The first test is normal noise isolation with the windows up. The second test is normal noise isolation with the windows down(very noticeable). The third test, and I admit I may have done this wrong, is windows down with max voice isolation(a little better than without max voice isolation). What I think may be wrong with this third test is I'm not sure if it has to be quiet before you instantiate the max voice isolation in order to center on the correct voice better, maybe we should revisit this test. The fourth and final test is max voice isolation and windows up(a great deal of difference can be heard). I don't have any hard numbers to prove this, nor do I have the time to analyze the sound variations but someone else here might. So I have attached a copy of the test in MP3 form for your testing and listening enjoyment.
*Edit all the tests are combined on this mp3 file*
futbolkeeper said:
I did a test on my drive in this morning. I called myself and left a voice mail to conduct the test. All the tests are performed driving on the Highway driving 80 m.p.h (128.75 for the rest of the world). The first test is normal noise isolation with the windows up. The second test is normal noise isolation with the windows down(very noticeable). The third test, and I admit I may have done this wrong, is windows down with max voice isolation(a little better than without max voice isolation). What I think may be wrong with this third test is I'm not sure if it has to be quiet before you instantiate the max voice isolation in order to center on the correct voice better, maybe we should revisit this test. The fourth and final test is max voice isolation and windows up(a great deal of difference can be heard). I don't have any hard numbers to prove this, nor do I have the time to analyze the sound variations but someone else here might. So I have attached a copy of the test in MP3 form for your testing and listening enjoyment.
*Edit all the tests are combined on this mp3 file*
Click to expand...
Click to collapse
Thanks for those tests.
Personally I am very interested in wind tests, specifically when just walking outdoors with a moderate degree of wind.
I find that being outside (not in a car) generally produces less noise, but more wind (since you don't have the car structure buffeting the wind). If you have the time I would appreciate if you could post the results of a test like this.
Also, if you happen to use MS Voice Command, I would be interested to know if it can pick up your commands.
On my current headsets if I wear it in my left ear (which I don't normally do) and roll my windows down on the highway MSVC does not pick up my commands. The same is true if I am walking in winds.
Also, what headsets did you have previously, and how would you say this compares?
thanks!
Review Update?
Any update on how it has been working after a week?
yeah i am surprised that no one has reviewed it after this long...
Check this thread, we've been comparing there;
http://forum.xda-developers.com/showthread.php?t=370007&page=7
I'm liking tha Z9i the best for overall performance and fit, especially if you use the Jabra ear loops as they are the most comfortable and adjustable.
I tried and dumped the Jawbone 2 headset, sadly they didn't deliver in my opinion, especially for the price.
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!
I've seen a few posts recently about how to set up Viper4Android on an Android head unit, so thought I would start this thread so that we could share some ideas. The configuration that I posted below is what I came up with in 15 minutes of experimenting yesterday. It's not a definitive or optimum config, it's just what I came up with, but I am very happy with the result. The purpose of this thread is to share ideas and configurations, due to there being a complete lack of this kind of information anywhere else that I could find.
First, a disclaimer: I'm half deaf, have constant ringing in my ears, and I am most definately not an audiophile, so take anything I say below with a grain of salt. Having said that, I do appreciate clarity when listening to music, so that is always my priority.
So I installed an android head unit in my car last week, installed the Hal9k ROM which came with Viper4Android (V4A) pre-installed. I've played around with V4A on my phone before with goods results, it's mainly geared towards phones with earphones, so don't expect too much from it using it in the car. But I played around with it yesterday and came up with a setup that I am really happy with, it gives in my opinion a richer, fuller sound, with no loss of clarity.
So here is what I did:
1) Select the speaker icon down the bottom. The headphone setup certainly has a lot more options available, but I went with the speaker setup as that's what I'm using.
2) Turn on the Master Limiter
3) I turned on Playback Gain control for a specific reason. My head unit has a bit of hiss with no signal at very high volumes. I can't hear it while the engine is running, but it's there. Bumping up the playback gain control let me turn down the gain on the head unit (look in Factory Settings) which reduced the hiss, but without any clipping or distortion that I can hear. I set Strength to 2, Max Gain to 9x, and output threshold to -1db.
4) I turned on the FIR equaliser. I was using the equaliser in the Amplifier app that came with my head unit, but I would rather just have all of these settings in one place, so I set the Amp equaliser to flat, and made all of my adjustments within the FIR equaliser. My setup tends to be a bit bass-heavy to my ears, so I just use the equaliser to gently taper off the bass, and I leave everything else flat. But just adjust it so that it sounds right to you in your car with your choice of music.
5) I turned on Reverberation. I dare say many will scoff at this, but I like the effect. It makes the sound more "full", without any loss of clarity that I can hear. I used fairly minimal settings to achieve this effect. Room size = 25m2, Sound Field = 6m, Damping Factor = 20%, Wet Signal= 20%, Dry Signal = 50%.
And that's what I came up with in 15 minutes. I'm really happy with the result though. Hopefully that will give others a starting point to do some more experimentation. And if you have your own ideas, please share them here
jrobbom5 said:
I've seen a few posts recently about how to set up Viper4Android on an Android head unit, so thought I would start this thread so that we could share some ideas. The configuration that I posted below is what I came up with in 15 minutes of experimenting yesterday. It's not a definitive or optimum config, it's just what I came up with, but I am very happy with the result. The purpose of this thread is to share ideas and configurations, due to there being a complete lack of this kind of information anywhere else that I could find.
First, a disclaimer: I'm half deaf, have constant ringing in my ears, and I am most definately not an audiophile, so take anything I say below with a grain of salt. Having said that, I do appreciate clarity when listening to music, so that is always my priority.
So I installed an android head unit in my car last week, installed the Hal9k ROM which came with Viper4Android (V4A) pre-installed. I've played around with V4A on my phone before with goods results, it's mainly geared towards phones with earphones, so don't expect too much from it using it in the car. But I played around with it yesterday and came up with a setup that I am really happy with, it gives in my opinion a richer, fuller sound, with no loss of clarity.
So here is what I did:
1) Select the speaker icon down the bottom. The headphone setup certainly has a lot more options available, but I went with the speaker setup as that's what I'm using.
2) Turn on the Master Limiter
3) I turned on Playback Gain control for a specific reason. My head unit has a bit of hiss with no signal at very high volumes. I can't hear it while the engine is running, but it's there. Bumping up the playback gain control let me turn down the gain on the head unit (look in Factory Settings) which reduced the hiss, but without any clipping or distortion that I can hear. I set Strength to 2, Max Gain to 9x, and output threshold to -1db.
4) I turned on the FIR equaliser. I was using the equaliser in the Amplifier app that came with my head unit, but I would rather just have all of these settings in one place, so I set the Amp equaliser to flat, and made all of my adjustments within the FIR equaliser. My setup tends to be a bit bass-heavy to my ears, so I just use the equaliser to gently taper off the bass, and I leave everything else flat. But just adjust it so that it sounds right to you in your car with your choice of music.
5) I turned on Reverberation. I dare say many will scoff at this, but I like the effect. It makes the sound more "full", without any loss of clarity that I can hear. I used fairly minimal settings to achieve this effect. Room size = 25m2, Sound Field = 6m, Damping Factor = 20%, Wet Signal= 20%, Dry Signal = 50%.
And that's what I came up with in 15 minutes. I'm really happy with the result though. Hopefully that will give others a starting point to do some more experimentation. And if you have your own ideas, please share them here
Click to expand...
Click to collapse
I downloaded Malay Mod {and got the Full Version}. It also came with V4A but I hear no difference no matter what I've got selected. Mine has "Headset - Phone Speaker - Bluetooth Device - USB/Dock" tried them all ..
My headunit pushes amps via RCAs, so maybe it doesn't work through those channels?
Good ideas on your tuning {I've for tinnitus too}.