I always had my HTC Tilt 2 playing music in my car through bluetooth. Now with my new HD7 I noticed the sound quality is very bad. It sounds like its streams at a low bit rate so all the high frequencies create crackling distorted. Overall sound doesn't have any richness to it. I use the BlackBerry Remote Stereo Bluetooth Gateway: http://www.amazon.com/BlackBerry-Re...M0/ref=sr_1_11?ie=UTF8&qid=1289972227&sr=8-11. The quality of the Tilt 2 paired up with it was really good. I think they need to fix this pronto.
Bad quality sound on Bluetooth Music streaming
- Thread starter octavio79
- Start date
Yeh I have the same problem too, its exactly the same if I use 3.5mm jack aux too, just far too quiet, causes so much distortion, neither bluetooth or 3.5mm sound any better. If you put headphones in you can tell there isnt enough volume at all.
Really needs fixing, seems more of a software issues as I've seen people with various WP7 models complaining about low volume.
Right now I'm having to use my old Touch Pro for audio streaming in the car.
Really needs fixing, seems more of a software issues as I've seen people with various WP7 models complaining about low volume.
Right now I'm having to use my old Touch Pro for audio streaming in the car.
Sound quality is always in the ear of the beholder, so difficult to fully compare what people consider good or bad.
I find the internal speaker, headphones and line-out (via 3.5mm) too quiet. Quality seems ok from the 3.5mm jack though.
But I tested the BT recently and at high volume it didn't sound very good on a beefy car stereo (with sub). I was disappointed, but had no basis for comparison at the time.
I find the internal speaker, headphones and line-out (via 3.5mm) too quiet. Quality seems ok from the 3.5mm jack though.
But I tested the BT recently and at high volume it didn't sound very good on a beefy car stereo (with sub). I was disappointed, but had no basis for comparison at the time.
I have this issue too. I'm using the Sony DRBT140Q. The audio sounds perfect when connected to my G1 and Sennheiser BTD-300. But when connected to the HD7 the sound turns kind of...fuzzy on the mids. Gonna go try out other HD7s at the T-mobile store and see if it's a problem with my handset.
3.5 jack is fine, but bluetooth quality is aweful! was fine on the HD2.
On BT, the bass and mids are ok, but the highs are terrible, they are really crackly/distorted. You can get away with it on dance, because its not too noticable, but in Rock music, it just sounds ****e.
On BT, the bass and mids are ok, but the highs are terrible, they are really crackly/distorted. You can get away with it on dance, because its not too noticable, but in Rock music, it just sounds ****e.
If you have the phoned paired via Bluetooth Sound Enhancer makes no difference to the sound whatsoever. Even if connecting to 3.5mm and using sound enhancer it sounds terrible in my car.
Think I'm just gonna have to carry on using my Touch Pro 2 until something is changed with the volume. I just think there isnt enough, you have it too loud its distorted so you turn it down and then turn the radio up but its no better because you get a lot of hiss etc.
So is anyone going to fix this?
I have Mozart 7 and fits the same description as previously said :
Bad audio quality when connected with Bluetooth headset (Sony Ericsson MW600)
(crackled/distorted, a low pitch noise at the background, sounds like interference from other things) - ive tried it on everywhere its the same
sounds perfect when its wire connected
This is making me really angry since i got this Bluetooth together with my mozart 7!!!
Can we notify anyone about this in particular??
I have Mozart 7 and fits the same description as previously said :
Bad audio quality when connected with Bluetooth headset (Sony Ericsson MW600)
(crackled/distorted, a low pitch noise at the background, sounds like interference from other things) - ive tried it on everywhere its the same
sounds perfect when its wire connected
This is making me really angry since i got this Bluetooth together with my mozart 7!!!
Can we notify anyone about this in particular??
I have the same problem. Bad quality when streaming via bluetooth to my car radio. With my HD2 and Windows Mobile 6.5 I had exactly the same problem for which there were registry hacks to improve this. Do you think the same registry entries still exist on Windows Phone 7?
Bluetooth audio quality FIXED!!
Ok guys here it is. I figured out how to improve the Bluetooth music streaming quality.
1. Your device must be unlock to do this. Even if your device relocks it doesn’t matter.
2. After unlocking device download and install the XAP file RegistryEditor 1.1.0.0. This is a registry Editor for WP7.
3. Once you have the RegistryEditor 1.1.0.0. on your phone do the following registry hack:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2 DP\Settings]
"Bit Pool"= change Value data to 51.
As I suspected the problem was in the sample rate settings. After I did the hack it sounded beautiful and at full sample rate. Some people don’t have the ear to catch the difference. I like to think I have a very good ear for this sort of thing. Being a musician and aspiring sound designer. I listen to all my music in the car through Bluetooth stereo gateway so I rely on this Bluetooth functionality 100%. Here is an example of the “Value data” number translated to sample rate.
Medium Quality
Bit Pool=35, Sample Rate=44.1 kHz = 229 kb/s
Bit Pool=33, Sample Rate=48 kHz = 237 kb/s
High Quality
Bit Pool=53, Sample Rate=44.1 kHz = 328 kb/s
Bit Pool=51, Sample Rate=48 kHz = 345 kb/s
Last Note: Even if you cannot unlock your phone anymore it won’t matter. As long as you gain access to that registry and change it. Unless you do a hard reset or Windows update you will need to repeat the process or unless Microsoft slaps their head about this issue before they release that update.
Ok guys here it is. I figured out how to improve the Bluetooth music streaming quality.
1. Your device must be unlock to do this. Even if your device relocks it doesn’t matter.
2. After unlocking device download and install the XAP file RegistryEditor 1.1.0.0. This is a registry Editor for WP7.
3. Once you have the RegistryEditor 1.1.0.0. on your phone do the following registry hack:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2 DP\Settings]
"Bit Pool"= change Value data to 51.
As I suspected the problem was in the sample rate settings. After I did the hack it sounded beautiful and at full sample rate. Some people don’t have the ear to catch the difference. I like to think I have a very good ear for this sort of thing. Being a musician and aspiring sound designer. I listen to all my music in the car through Bluetooth stereo gateway so I rely on this Bluetooth functionality 100%. Here is an example of the “Value data” number translated to sample rate.
Medium Quality
Bit Pool=35, Sample Rate=44.1 kHz = 229 kb/s
Bit Pool=33, Sample Rate=48 kHz = 237 kb/s
High Quality
Bit Pool=53, Sample Rate=44.1 kHz = 328 kb/s
Bit Pool=51, Sample Rate=48 kHz = 345 kb/s
Last Note: Even if you cannot unlock your phone anymore it won’t matter. As long as you gain access to that registry and change it. Unless you do a hard reset or Windows update you will need to repeat the process or unless Microsoft slaps their head about this issue before they release that update.
Last edited:
Also set "UseJointStereo" to 0 since one of the common joint stereo algorithm uses a lossy audio compression. BT Music sounds great with these changes!
i´ve the same headset and i noticed that srs-optimizing and dolby mobile is not working over bluetooth
also i cannot play forward
Verizon Trophy Fixed
Thanks for this fix! I finally got my Verizon Trophy fixed after
1. Trying to deploy RegistryEditor 1.1.0.0 only to get a deployment error
2. Trying to deploy RegistryEditor 1.2.0.0 only to get a deployment error
3. Editing the XML file in RegistryEditor 1.2.0.0, which successfully deployed the .xap but wouldn't actually let me edit the necessary values BitPool and UseJointStereo. I could change them in the editor, but as soon as I navigated away from the editor they would return to their defaults.
4. Attempted this http://forum.xda-developers.com/showthread.php?t=1271963 only to be unable to run Connection Setup app
5. Completed this http://forum.xda-developers.com/showthread.php?t=1271963&page=64 after about 10 iterations of trying to open the Connection Setup app at the exact moment described. I didn't think it would work, but it did.
So, in summary, in order to install a registry editor (1.2.0.0) AND have it edit the BitPool and UseJointStereo values on my student developer unlocked Verizon Trophy running official mango update, I had to do an interop unlock.
Took me a few days to sort through, but I'm so unbelievably happy with the result!
Thanks for this fix! I finally got my Verizon Trophy fixed after
1. Trying to deploy RegistryEditor 1.1.0.0 only to get a deployment error
2. Trying to deploy RegistryEditor 1.2.0.0 only to get a deployment error
3. Editing the XML file in RegistryEditor 1.2.0.0, which successfully deployed the .xap but wouldn't actually let me edit the necessary values BitPool and UseJointStereo. I could change them in the editor, but as soon as I navigated away from the editor they would return to their defaults.
4. Attempted this http://forum.xda-developers.com/showthread.php?t=1271963 only to be unable to run Connection Setup app
5. Completed this http://forum.xda-developers.com/showthread.php?t=1271963&page=64 after about 10 iterations of trying to open the Connection Setup app at the exact moment described. I didn't think it would work, but it did.
So, in summary, in order to install a registry editor (1.2.0.0) AND have it edit the BitPool and UseJointStereo values on my student developer unlocked Verizon Trophy running official mango update, I had to do an interop unlock.
Took me a few days to sort through, but I'm so unbelievably happy with the result!
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2Bluetooth audio quality FIXED!!
Ok guys here it is. I figured out how to improve the Bluetooth music streaming quality.
1. Your device must be unlock to do this. Even if your device relocks it doesn’t matter.
2. After unlocking device download and install the XAP file RegistryEditor 1.1.0.0. This is a registry Editor for WP7.
3. Once you have the RegistryEditor 1.1.0.0. on your phone do the following registry hack:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2 DP\Settings]
"Bit Pool"= change Value data to 51.
As I suspected the problem was in the sample rate settings. After I did the hack it sounded beautiful and at full sample rate. Some people don’t have the ear to catch the difference. I like to think I have a very good ear for this sort of thing. Being a musician and aspiring sound designer. I listen to all my music in the car through Bluetooth stereo gateway so I rely on this Bluetooth functionality 100%. Here is an example of the “Value data” number translated to sample rate.
Medium Quality
Bit Pool=35, Sample Rate=44.1 kHz = 229 kb/s
Bit Pool=33, Sample Rate=48 kHz = 237 kb/s
High Quality
Bit Pool=53, Sample Rate=44.1 kHz = 328 kb/s
Bit Pool=51, Sample Rate=48 kHz = 345 kb/s
Last Note: Even if you cannot unlock your phone anymore it won’t matter. As long as you gain access to that registry and change it. Unless you do a hard reset or Windows update you will need to repeat the process or unless Microsoft slaps their head about this issue before they release that update.
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