[Q] High CPU usage when using Bluetooth for playing music - Samsung Galaxy S II Plus

I've never used Bluetooth before, but recently I tried pairing with a car's Bluetooth system, for playing music wirelessly through the car's audio system.
Setup was easy and it worked very well, but it seemed to me like the phone became quite laggy and it even had a hang at one point.
How does bluetooth for music work for you? Do you have high CPU usage too? Can the system in the car have any influence on my phone?
Running Samsung software 4.2.2 build UBNB1 (Germany), rooted and most Samsung junk removed.

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[Q] Bluetooth streaming issue

Hey guys, I hope you can help me. This site is awesome, BTW.
I have a Citröen C4 and I stream music from my Motorola Atrix to the car's audio system. It works great. I was using Alien ROM (with which it worked perfectly) and I recently changed to CM9 beta. The thing is, sometimes I don't know why, the music comes out the phone's speaker instead of the car's speakers (yes, it is connected to the car. As a matter of fact, the car's screen even shows the artist and song name and I can also skip the song from the steering wheel, but it keeps coming out of the phone's speaker!!).
Disconnecting and reconnecting doesn't work. The only thing that switches it back to the car is rebooting the phone (even though CM9 boots amazingly fast, it's still pretty annoying).
I used to have an iPhone and the music app there gives you the option to stream to the bluetooth device or the phone's speaker (or whatever other device you are connected to). I love my droid and I really don't want to go back to the iPhone.
Is there any app that can do this switch? Any tweaks, configurations, patches... anything???
Thanks and so sorry for the long post!!

App to govern bluetooth media

Hi All, I am a Galaxy S5 user and I drive a Jeep Grand Cherokee with the UConnect infotainment package. Both work really well together. However, I am running into scenarios where I only want "some" of my phone media apps to run through the bluetooth. Here is an example:
While driving and listening the the radio AM/FM/XM (whatever), I may also have my phone running waze to alert me of traffic or red light cameras etc . But when Waze tries to send an audio alert, I do not hear it because my infotainment source is "radio" instead of Bluetooth at that moment.
The obvious answer is to only pair the phone for phone function and skip the media pairing, but there are also plenty of times when I do want to listen to phone media through the infotainment (spotify etc). The phone-only pairing would limit that ability.
So I am seeking a phone app that can apply policy to the phone's "media" apps to determine which ones play over bluetooth and which play through the phone's speakers. Does anyone have a suggestions?

Bluetooth disconnects when music/video is buffering

Hello xda,
I recently put Bluetooth into an old boombox from the eighties. It works great, except with my galaxy s4.
Bluetooth keeps on disconnecting, rapidly reconnecting and disconnecting again whenever I try to stream via Google play music or YouTube for example. My s4 disconnects the bluetooth device whenever the audio takes too much time to start streaming, which is always the case as I have a poor internet connection.
Why do I think it is related to the time it takes for audio to start streaming ?
- The boombox works fine with local files on my galaxy s4
- Streaming audio works fine when my s4 is connected to 4g or faster wifi, when there is no long buffering before a song starts playing.
- It works fine on all other devices I tested (nexus 10, laptop, moto g....), even when music has to buffer for 30+ seconds before it starts playing.
Pausing a song works fine though, and it stays connected for hours when nothing is being played
It must be related to my phone, it has the original Samsung lollipop firmware but it is rooted and has xposed installed (of course).
A factory reset is not an option, I have done way too many tweaks for that.
Has anyone been having this problem?
Is it possible to install a newer/different Bluetooth firmware?
Or does anyone know an app/ xposed module that prevents the phone from disconnecting a bluetooth device on it's own ?
Thank you in advance,
nxss4
https://youtu.be/hO3Eyr4wQAA
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Major problem, Bluetooth music connection to car

Hi, has anyone run into this?
I'm used to play music from my phone to my car (Toyota Auris hybrid) over Bluetooth. Worked good with my LG G4 but with the Mate 9 it miserable fails. BT connects but it won't play anything.
There's loads of forum messages around since nougat came out, it seems to be an android 7.0 problem that seems to be solved in 7.11
Do you guys have successfully streamed in your cars over BT? Please let us know!
blackspp said:
Hi, has anyone run into this?
I'm used to play music from my phone to my car (Toyota Auris hybrid) over Bluetooth. Worked good with my LG G4 but with the Mate 9 it miserable fails. BT connects but it won't play anything.
There's loads of forum messages around since nougat came out, it seems to be an android 7.0 problem that seems to be solved in 7.11
Do you guys have successfully streamed in your cars over BT? Please let us know!
Click to expand...
Click to collapse
I'll test it when mine arrives as I use bluetooth also.
Some other info, it really seems to be widespread and only with cars. Will check if calling actually works, I was so busy with music I forgot to check.
Btw, I have a Pebble time steel and that now has a better and more stable BT connection across a longer distance than with the lg g4.
Update next day:
Car/phone BT connection is fine.
Audio suddenly worked after a few tries but no tags visible. Much in line with what others say. Really erratic behavior.
Same for my BT speaker, perfect connection.
Another update: It played audio only once. After some more digging on other forums it seems that Android 7 is the issue. A lot of cars won't play audio over BT anymore or just handle the stream only now and than. The connection is there, the song is playing on the phone, it streams to the car but there's no sound. Oddly when you receive a phone call there's no prob whatsoever.
blackspp said:
Another update: It played audio only once. After some more digging on other forums it seems that Android 7 is the issue. A lot of cars won't play audio over BT anymore or just handle the stream only now and than. The connection is there, the song is playing on the phone, it streams to the car but there's no sound. Oddly when you receive a phone call there's no prob whatsoever.
Click to expand...
Click to collapse
My Nexus 6P on RRemix rom rooted with Marshmallow does this with 2017 Audi A4. Only thing that makes it come back is to hit the bluetooth icon in notification tray off and back on, and it syncs back up with sound. Try that? It might be a Huawei bug?
I had a similar issue on my mate 8. Spotify worked but deezer didn't in relation to showing what's playing etc.. it's likely to be nougat 7 as I've got a pixel xl and no issues with 7.1 at all over Bluetooth to my car. Looking at a mate 9 though as I miss the bigger screen
Sent from my Pixel XL using Tapatalk
I have had issues with my S7 Edge where everything connects up and all seems normal but when it plays it either delays before sound works right out of car speakers or you have to do a dance of connecting and reconnecting before sounds works properly. Also think I recall similar glitching with my previous car and my previous android phone but maybe it was previous phone (Nexus 6P) and current car (2015 Nissan Murano Platinum). Only regularly ever play podcasts in car from Beyond Pod app, BTW. Occasionally play something off YouTube but don't recall it glitching.
Sent from my Samsung Galaxy Tab S2 using XDA Labs
I have a Japanese 2014 Mazda Demio, and my Chinese Mate 9 (MHA-AL00C00B109SP01) connected, played music no problem, over bluetooth. The artist/song name shows up. But it doesn't support browsing the song library like the iPhone or Galaxy S7 did.
I also have issues to connect my mate 9 to my car (Renault Laguna 3 from 2011). I simply do not succeed to connect the phone to the car: when I try to connect, my car gives me a 4 digits pin number to enter into my phone to establish the connection, I try to connect to my car from the mobile, the box to enter the 4 digits opens and closes before I have the time to enter the digits with a connection error message.
I suspect a software bug on the bt connection with pin validation on the mate side. I can connect without issue to a standard Bluetooth speaker.
I think some cars, maybe many, just have suck computer systems. It is why I always laugh at the idea of self driving cars - like these same morons that make these terrible in car computer systems will be worth trusting to drive you around.
Sent from my Samsung Galaxy Tab S2 using XDA Labs
I also have issue on Bluetooth with my Renault Megane 2009
I had to choose nomade device to pair my mate and I have some problem on mp3 play-back that suddenly stop where has it continue on music player.
It seems to be better since I install A2DP switcher from playstore but don't know why
So I have had this issue since I got the phone yesterday and just got it working in my 2012 Toyota Tundra.
Settings > Apps > hit the 3 dots > Show system processes > Bluetooth Share > Force stop, clear data. After that try pairing your device, mine has stayed connect with frequent breaks for 5 hours today
No issues with 2 of my vehicles.
I'm having no issues at all. I'm connecting to a Tune2Air bluetooth adapter ('11 A4 doesn't support Bluetooth streaming).
same issue with Pioneer Android Auto unit.
Sometimes it works out of the box, sometimes music plays (as per screen indicators) but no music, sometimes music plays for split second and stops.
disabling/enabling BT helps
no issues when phone is connected over usb with android auto
Same thing with me as well. I have reached out to Huawei but no response. I have a US version
Just got a new Huawei Mate 9 from Optus Australia. It would not connect to my car bluetooth although it would connect to two bluetooth speakers I have. Optus technical support finally resolved the issue by changing the car bluetooth PIN from 1111 to 0000. Looks like a Huawei bug in that it can only connect to devices without a PIN or with a PIN of 0000. Checked my speakers and one has no PIN and the other has 0000 as the PIN. Hopefully Huawei will fix this.
I have a recent Japanese Mazda, as well as a gear s3 or a Huawei watch connected at the same time, and no issues with Bluetooth at all with any recent Huawei firmwares.
My Fabia plays over BT just fine, Android Auto plays it fine too.
dscline said:
I'm having no issues at all. I'm connecting to a Tune2Air bluetooth adapter ('11 A4 doesn't support Bluetooth streaming).
Click to expand...
Click to collapse
I previously reported no issues, but now BT is very problematic. For me, it seems, the issue stems from multiple connections. Before I needed two bluetooth connections in my car: one to the car itself for phone calls, and one to a BT adapter to stream music to the car's audio system. A couple months ago, I added a Huawei watch to the mix, and things went south. Typically I'll put my watch on in the morning and it will connect to the phone no problem. But when I get in my car, it doesn't want to connect: the car itself is not connected at all, the phone reports that it's connected to the BT streaming adapter, but no music plays through it. If I turn off BT on the phone and turn it back on, typically that will fix the streaming, but not the phone call connection. The phone will report that both the streaming adapter and the watch are connected, but not the car. If I click on the car connection, it will then connect. The watch connection in the list with then lose the "connected" status, but strangely, it stays connected.
So, I can't get three devices to say "connected" in the BT device list simultaneously, BUT if I turn BT off then back on when all three devices are available, THEN manually connect the car connection, all three will work, even though only two of them will say "connected".

Bluetooth issue with car stereo

EDIT: KNOWN ISSUE https://us.community.samsung.com/t5/forums/v3_1/forumtopicpage/board-id/GS8QA/page/1/thread-id/299
Anyone else had any connectivity issues? 2013 Toyota 86 and i cant connect to the car stereo... may be time to get Android Auto, finally have a reason
But, in the meantime, i would love to hear from you if you've managed to connect.
2016 Ford Mustang GT with Sync 3. Android auto and bluetooth both work as expected with 0 issues (other than personally I think android auto blows monkey chunks.)
xkwizt said:
EDIT: KNOWN ISSUE https://us.community.samsung.com/t5/forums/v3_1/forumtopicpage/board-id/GS8QA/page/1/thread-id/299
Anyone else had any connectivity issues? 2013 Toyota 86 and i cant connect to the car stereo... may be time to get Android Auto, finally have a reason
But, in the meantime, i would love to hear from you if you've managed to connect.
Click to expand...
Click to collapse
Have a 2015 Camry Hybrid and don't have an issue connecting to my Entune Audio system.
14 Grand cherokee SRT with 8.4 Uconnect and no issues at all. My iphone 7 plus wont stream smoothly to my headunit (choppy audio) but the S8+ does.
No issues connecting to the aftermarket deck in my jeep or the factory system in my 2017 work Chevy Equinox.
No problem connecting with the radio on my 2016 RAV-4.
2011 civic. No issues other then it takes a little longer to connect than my last phone, and my car no longer displays artist/track info. Hopefully it'll get fixed in an update.
pizzlewizzle said:
2011 civic. No issues other then it takes a little longer to connect than my last phone, and my car no longer displays artist/track info. Hopefully it'll get fixed in an update.
Click to expand...
Click to collapse
Unfortunately, it won't happen. Samsung phones haven't displayed metadata on Civic stereos since the Note4. It's something about Samsung's custom Bluetooth stack when they upgraded it to Bluetooth 4.0; it doesn't offer full backwards compatibility. It will connect and play audio and even respond to controls via BT, but no metadata. And those apps that circumvent the issue by transmitting metadata in an alternate way, none of them work. We Samsung/Civic users have been fighting with this for a few years now to no avail.
And Honda doesn't put out updates for their stereos, so nothing will ever be fixed from their end. The only "solution" is to get a different stereo or a newer car. Or a new phone.
That's the worst part – every other phone works fine. iPhone, LG, Motorola, Pixel... It's just Samsung phones that don't play nice with older Honda stereos.
I am having an issue where call audio and contacts work between my T-Mobile S8 and Kia Optima EX 2012 with the Navigation/Infinity system, but no Streaming audio. There is no option on my phone for it, and I can Enable/Disable Streaming Audio on the car, pair, unpair, try different combinations, even factory reset the head unit and the Bluetooth on the head unit. Nothing so far. My car does show what's playing, but it still only plays through the phone and I can pause, skip, etc. from the car.
Anybody else had/has the same issue?
xkwizt said:
EDIT: KNOWN ISSUE https://us.community.samsung.com/t5/forums/v3_1/forumtopicpage/board-id/GS8QA/page/1/thread-id/299
Anyone else had any connectivity issues? 2013 Toyota 86 and i cant connect to the car stereo... may be time to get Android Auto, finally have a reason
But, in the meantime, i would love to hear from you if you've managed to connect.
Click to expand...
Click to collapse
I know you posted this a while ago - but I have never had issues connecting blue tooth to my personal car (BMW X1) - I also travel heavlily and I have never had issues connecting to a variety of different rental cars, Fords, Kias, Toyota, etc.
Hope you found a fix or got it working
Stock stereo in a 2014 Toyota FJ Cruiser. I have no problems connecting, streaming audio, or making phone calls. My audio streaming does play with a lot of cracks, but it still plays. I might mess with EQ settings but I haven't had a chance yet.
2015 WRX with stock stereo (no nav, non-Harmon version). Here are the seemingly random issues I have with bluetooth:
- Connects fine most of the time, but will sometimes connect and the audio will be muted and requires me to pause the track on my phone and then press play.
- Audio will cut out at times and revert to playing through the phone's speakers, but the phone will still be connected and call audio will play through the car speakers and I can still control the track next/previous with my steering wheel controls.
- Audio will not connect sometimes when my wife is in the car wearing her FitBit, even with my phone's auto discovery turned off and nearby devices turned off.
- Track info sometimes gets stuck on the currently playing track and will not change until the car is turned off, the app is closed and process killed, and connection is made again.
Like I said, these issues appear to be random and seem to get worse when someone else is in the car with me or when I'm wearing an Android Wear watch. I've played with every connection setting I can in my phone but I'm sure this all boils down to it being a crappy stereo system. Nothing like being on the freeway during the beginning of a long commute and having my music cut out on me and having to switch back over to the (ugh...) FM radio.
Sevael said:
Unfortunately, it won't happen. Samsung phones haven't displayed metadata on Civic stereos since the Note4. It's something about Samsung's custom Bluetooth stack when they upgraded it to Bluetooth 4.0; it doesn't offer full backwards compatibility. It will connect and play audio and even respond to controls via BT, but no metadata. And those apps that circumvent the issue by transmitting metadata in an alternate way, none of them work. We Samsung/Civic users have been fighting with this for a few years now to no avail.
And Honda doesn't put out updates for their stereos, so nothing will ever be fixed from their end. The only "solution" is to get a different stereo or a newer car. Or a new phone.
That's the worst part – every other phone works fine. iPhone, LG, Motorola, Pixel... It's just Samsung phones that don't play nice with older Honda stereos.
Click to expand...
Click to collapse
I have the same issue. Sound is clear, music plays fine, wheel commands work fine... even the contact list, which only showed partially (200 contacts or so), now shows all of them...
But Title/Artist/Album do not show up, only says Samsung S8.
How do I enable the metadata?
thunderdrome said:
How do I enable the metadata?
Click to expand...
Click to collapse
As I outlined in my post, you can't.
Why not?
I have the same issue, calls work, changing track, music playing, good quality of sound, contact info, full phonebook (on the S2 it was just 200 contacts or so).... but no media metadata! This is software issue and it seems that in other units than the Civic (maybe post AVCRP 1.3) it works...

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