All,
Does anybody have any fixes regarding the sound quality when using Bluetooth A2DP protocol? I use my Evo to mate with a Bluetooth receiver so I can listen to Rhapsody over my home stereo. The sound quality is flat. The high frequencies are not present. It sounds like a bad quality MP3. I know that its the A2DP causing the quality issue as directly connection (through 3.5 jack) is awsome.
The Apple 3GS A2DP sound quality was awsome. I am not sure why the Evo is not sounding good. Any help would be most appreciated.
Thanks,
Lance
use the cyanogen rom--this uses a bitpool of 53 giving you the best bluetooth quality possible. the stock/sprint/htc bluetooth drivers are set for a bitpool of 32
Is there any other ROM that has the bit pool set to 53?
Lance
Nope all Sense roms use HTC's ****ty low bitpool setting. This is why I'm running CM as well it's the only rom I can A2DP to my Sony Head unit and get good audio. I attempted to contact HTC about this issue here's the juicy details
Here's my initial question
I have terrible static when streaming music over A2DP on my HTC EVO to my sony mex-bt2800 car radio. If I use CyanogenMod 6.0 which uses a open source bluetooth stack my A2DP is crystal clear to my radio. I have used logcat to look at whats going on I dont know if its a bitrate problem or a bitpool problem or if my radio isn't in your acoustic database.
http://forum.xda-developers.com/showthread.php?t=708265&highlight=bluetooth+bitrate
Here's the response I received
Although the android software has been updated to be more compatible with Bluetooth headsets and car kits. Most of the time a Bluetooth manufacturer will have a list on there website stating devices they have found compatible, but this is not always the case. From the information on your issue it seems that your device is simply not fully compatible. The only thing we would be able to recommend would be to try another headset.
Then my response back
I would like an Engineer to read my question if possible since I don't think you fully grasp what I'm saying here. First My EVO's Bluetooth A2DP WORKS 100% clearly when using a Open Source ROM which implements Bluez Bluetooth stack http://www.bluez.org/
When I run your Sense UI ROM the Stock ROM you release which uses your own proprietary Bluetooth Stack I get static in the background so you cant really say its my phone now can you? Its your implementation that's not working properly. I'm not about to try every car stereo till I find one that works with the EVO when I know my stereo can work perfectly with my phone when using a properly coded open source Bluetooth stack.
Here is some extra info from a logcat that shows how your Bluetooth makes a connection through A2DP and what I believe is too low of a bitrate or bitpool setting
http://forum.xda-developers.com/showthread.php?t=708265&highlight=bluetooth+bitrate
PLEASE DON'T GIVE ME A ANSWER THAT YOU JUST READ FROM A SCRIPT. I would like a true response from someone who understands and can grasp my question fully like an engineer or a developer, when you give me a generic response of oh your Bluetooth headset isn't compatible keep buying new ones till you find one that works, that really makes me upset since you didn't even read my question it's a car stereo and there not cheap.
I await your educated answer.
And there final bull**** reply
We apologies for any inconvenience you may be experiencing. We will document your concern for review in development of our upcoming devices and future software updates. The situation is still an incompatibility with our device and your car kit weather on software or a hardware level. Unfortunately at this we have no further information beyond what has already been provided.
P_Dub_S said:
Nope all Sense roms use HTC's ****ty low bitpool setting. This is why I'm running CM as well it's the only rom I can A2DP to my Sony Head unit and get good audio. I attempted to contact HTC about this issue here's the juicy details
Here's my initial question
I have terrible static when streaming music over A2DP on my HTC EVO to my sony mex-bt2800 car radio. If I use CyanogenMod 6.0 which uses a open source bluetooth stack my A2DP is crystal clear to my radio. I have used logcat to look at whats going on I dont know if its a bitrate problem or a bitpool problem or if my radio isn't in your acoustic database.
http://forum.xda-developers.com/showthread.php?t=708265&highlight=bluetooth+bitrate
Here's the response I received
Although the android software has been updated to be more compatible with Bluetooth headsets and car kits. Most of the time a Bluetooth manufacturer will have a list on there website stating devices they have found compatible, but this is not always the case. From the information on your issue it seems that your device is simply not fully compatible. The only thing we would be able to recommend would be to try another headset.
Then my response back
I would like an Engineer to read my question if possible since I don't think you fully grasp what I'm saying here. First My EVO's Bluetooth A2DP WORKS 100% clearly when using a Open Source ROM which implements Bluez Bluetooth stack http://www.bluez.org/
When I run your Sense UI ROM the Stock ROM you release which uses your own proprietary Bluetooth Stack I get static in the background so you cant really say its my phone now can you? Its your implementation that's not working properly. I'm not about to try every car stereo till I find one that works with the EVO when I know my stereo can work perfectly with my phone when using a properly coded open source Bluetooth stack.
Here is some extra info from a logcat that shows how your Bluetooth makes a connection through A2DP and what I believe is too low of a bitrate or bitpool setting
http://forum.xda-developers.com/showthread.php?t=708265&highlight=bluetooth+bitrate
PLEASE DON'T GIVE ME A ANSWER THAT YOU JUST READ FROM A SCRIPT. I would like a true response from someone who understands and can grasp my question fully like an engineer or a developer, when you give me a generic response of oh your Bluetooth headset isn't compatible keep buying new ones till you find one that works, that really makes me upset since you didn't even read my question it's a car stereo and there not cheap.
I await your educated answer.
And there final bull**** reply
We apologies for any inconvenience you may be experiencing. We will document your concern for review in development of our upcoming devices and future software updates. The situation is still an incompatibility with our device and your car kit weather on software or a hardware level. Unfortunately at this we have no further information beyond what has already been provided.
Click to expand...
Click to collapse
Well I commend you for trying. This is something that makes me want to tear my hair out so I would love to see this resolved as well.
good on ya mate.
anyone know how to get another bluetooth stack on stock rooted 2.2?
I asked Flipz a while ago but I don't think he's looking into it. I also asked Netarchy he said he would look into it sometime but that i shouldn't hold my breath since he hadn't even looked at the code yet. HTC has released the source for their Bluez implementation so all we need is a dev willing to look into adjusting the bitpool setting.
This is a HUGE problem. I am flashing CM6 right now. HTC I am very disappointed with you..
The cyanogen rom also has great dsp equalizer
CyanogenMod will also make you a tropical island than transform your EVO into a jet plane and take you there ;-)
But in all seriousness, yeah, CM6 has BT fixed. One of my friends nagged Cyanogen about it last month, and he patched it right away.
I wish somebody could help us by increasing the bitpool on the Bluetooth driver. The Evo would be so much more enjoyable (for me at least) if the sound quality was better thru A2DP.
lancer123 said:
Is there any other ROM that has the bit pool set to 53?
Lance
Click to expand...
Click to collapse
It would be nice if there can be a patch of some sort...
Just an update today I got a call from HTC customer service since i gave a poor review of my experience on a survey they sent me. Talked in great detail about our problem with the Bluetooth stack told him about the bitpool setting how its 53 on CM and 35 on there roms. So hopefully on the next update well get a fix for the Stock Sense UI rom.
^^LMAO!!! dont blv the hype
I read that the CM6 ROM has this issue fixed. I have also read reports that the ROM email client doesn't support word wrapping (which I really do need). Can anybody confirm this?
Also,
Can anybody in ROM land please create a patch or an update to their ROM which increases the Bitpool to 53? I understand that the Bluetooth driver code has been released.
Thanks
bump............
any roms address this yet?
greenail said:
any roms address this yet?
Click to expand...
Click to collapse
maybe:
* Added DSP Manager (Digital Signal Processing) to boost audio and equalize sound for Headset, Phone Speaker and Bluetooth devices.
wont let me post links, but you know what to do:
forum.xda-developers.com/showthread.php?t=793471
I am using the latest OTA, rooted, along with the latest pandora and the bt audio quality is much better. I have the motorola t605.
With the initial 2.2 update bt quality sucked but now it's better.
Sent from my PC36100 using XDA App
mchlwvr614 said:
I am using the latest OTA, rooted, along with the latest pandora and the bt audio quality is much better. I have the motorola t605.
With the initial 2.2 update bt quality sucked but now it's better.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
That was a streaming issue, not a bitpool issue.
The BT audio was a lot better on my TP2 when I updated the registry bitpool to 48 from 32.
I wish they would fix it.
Basic introduction:
Me and a team of two other fellows are trying to develop a cool android application for a school assignment. We are focusing on Android v2.2+, and all have either a Droid Incredible or the Evo 4G.
The guts:
We'll be dealing with a few bits of hardware on the android side: the bluetooth radio, the camera, and the microphone.
The glory:
Our objective is that we're trying to use a phone's bluetooth connection and a computer's bluetooth connection to create a pairing of the two devices, and then have Windows recognize the phone as being an input microphone and video camera.
The question:
So far we have an android application that turns on the phone's bluetooth and initiates a camera preview. However, at this point we're kinda at a fork in the road... I have never dealt with anything like bluetooth before, and I've never programmed for android before.
I'm asking for some pointers and / or a focus point here. Unfortunately for our program already being so basic, we already aren't exactly sure of where to go from here. I typically find the android documentation to be way over elaborate with techspeak and under par with examples.
You can view all of our current code on our google code page: http://code.google.com/p/red-dragon/ (the name of our team is a bit of an inside joke )
Thanks a bunch guys!
Dear XDA code pros,
I have a problem. I am currently programming a simple Android app which is supposed to confirm that an established Bluetooth connection from my phone (Galaxy Note II) to any Bluetooth audio device (e.g. a mobile BT speaker) uses aptX as the A2DP codec. To my knowledge, aptX is chosen automatically when the source as well as the sink are capable of aptX, so there has to be some form of negotiation between these devices when a connection is being established. If one of the devices is not aptX-capable, a lower level codec (such as the mandatory SBC) is used.
With the Android SDK and my basic programming skills I was able to shape an app that would display the desired information. However, I am now stuck at the code where I ask the system for the A2DP codec that is in use. I looked at the A2DP developing reference, but it seems that the information I can get there is very basic. I also found no hint on how to ask the system for this information in any other Bluetooth developer reference.
With the help of this forum, I learned that the information about possible codecs is embedded in the bluez stack, and that the use of aptX can in fact be intercepted by logcat. However, can this information also be extracted by code on a non-rooted stock phone with a simple app?
Any kind of help and hints will be greatly appreciated!!!
Best regards
the Interceptor
Someone has managed to activate - built this feature on Oreo LG G6.
Bluetooth headphones - turn on the ringing into bandwidth.
Allow ringtones to be played through bluetooth headphones.
I include it as a developer option, but it does not work.
Android Oreo 8.0 EU LG-H870 20A STOCK ROM.
This option is very necessary for my work.
Any luck?
Any chance of having someone look into this?
Fairly common issue for LG users. I also need this function for work. As much as I dislike iPhone I may be returning to one if Android is going to make us a wait another 5 years for this to work.
Hello, I bought this smartwatch on Alibaba, when I go into the parameters its name is LY726(G) WATCH7 v06922. They say the software we have to install to connect to it is Fitpro. I can already access to it via bluetooth from my computer and it seems to be used as a bluetooth speaker when I do so.
For an art project I'd like to transform the smartwatch into a media player who would only play a video in loop with no other features, as I do this with raspberry pis. Is it possible to install android on it to do this? Which would be the solutions? Thank you very much and have a nice day.
of course no. it's like a trying to install windows 11 on 8-digits calculator. maximum what you can - translate audio stream and that's all. even no video.