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Aptx codec dont work on Oreo keeps reverting to SBC.

Is Aptx codec enable on Oreo?
Every time I change it it keeps reverting to SBC but my headphones are aptx HD compatible....any ideas?

That's because the Note 8 supports just Aptx and not Aptx HD

Iradj said:
That's because the Note 8 supports just Aptx and not Aptx HD
Click to expand...
Click to collapse
Thanks for your reply but not relevant because it should work fine hd or not....
And it's the same whith the Sony codec, none sticks and notice that when you change the codec in the developers zone and then you just start Bluetooth without any device paired it reverts to SBC automatically. Someone is able to change it?

madjose said:
Is Aptx codec enable on Oreo?
Every time I change it it keeps reverting to SBC but my headphones are aptx HD compatible....any ideas?
Click to expand...
Click to collapse
In fact, at least for me, as soon as it connects to a paired device it auto selects the compatible codec.
For my MacBook pro it's AAC, for the Sennheiser Momentum is aptX, for the Bose SoundSport wireless is again AAC.

tossero said:
In fact, at least for me, as soon as it connects to a paired device it auto selects the compatible codec.
For my MacBook pro it's AAC, for the Sennheiser Momentum is aptX, for the Bose SoundSport wireless is again AAC.
Click to expand...
Click to collapse
Do you have a exnos Note 8?
I dont get it....my headphones are aptx and connect right whith the LG v30 so the problem is whith the Note...
Even whith a Sony headphones the LDAC don't work....always revert to SBC.
Don't know if it's a bug or samsung don't allow them to work .
Does anyone whith N950F got it working?

madjose said:
Do you have a exnos Note 8?
I dont get it....my headphones are aptx and connect right whith the LG v30 so the problem is whith the Note...
Even whith a Sony headphones the LDAC don't work....always revert to SBC.
Don't know if it's a bug or samsung don't allow them to work .
Does anyone whith N950F got it working?
Click to expand...
Click to collapse
Yes, I have a N950F Exynos.

tossero said:
Yes, I have a N950F Exynos.
Click to expand...
Click to collapse
Thanks....I will try a factory reset maby it solves.
So when you connect Bluetooth it changes automatically to the right codec?
You don't do nothing?

At least im not the only one whith this problem....but no solution....lol

madjose said:
Thanks....I will try a factory reset maby it solves.
So when you connect Bluetooth it changes automatically to the right codec?
You don't do nothing?
Click to expand...
Click to collapse
Yes, nothing at all, it just happens.Between 2 connections it switches back to SBC.
I hope that you will sort it out

Hi guys any idea to fix it ? I'm in the same case

I made a factory reset and still the same....

madjose said:
I made a factory reset and still the same....
Click to expand...
Click to collapse
What BT device are you connecting to? For my Sony WH 1000x I have to select LDAC manually as it uses Aptx by default.
Edit
Look here you will see a solution in this short thread
https://forum.xda-developers.com/galaxy-note-8/help/oreo-bt-audio-codecs-t3777511

jah said:
What BT device are you connecting to? For my Sony WH 1000x I have to select LDAC manually as it uses Aptx by default.
Edit
Look here you will see a solution in this short thread
https://forum.xda-developers.com/galaxy-note-8/help/oreo-bt-audio-codecs-t3777511
Click to expand...
Click to collapse
Thanks but the codec menu dont appears to me whem im pairing the device and i can change it manually in dev options too but keeps reverting to SBC
I even went to retailer to try whith others headphones and sound bars and it's always the same result SBC...
So I know for sure that's my note 8 problem

My Headphones

madjose said:
Thanks but the codec menu dont appears to me whem im pairing the device and i can change it manually in dev options too but keeps reverting to SBC
I even went to retailer to try whith others headphones and sound bars and it's always the same result SBC...
So I know for sure that's my note 8 problem
Click to expand...
Click to collapse
Did you try Developer Options.
I checked also I don't see BT codec option in the BT settings. Only available from Developer Options.
Edit: for LDAC I do get this option in BT settings so don't need to use Developer Options. Also Note 8 does not support Aptx HD.

jah said:
Did you try Developer Options.
I checked also I don't see BT codec option in the BT settings. Only available from Developer Options.
Edit: for LDAC I do get this option in BT settings so don't need to use Developer Options. Also Note 8 does not support Aptx HD.
Click to expand...
Click to collapse
Yes i am using developers option and my headphones are aptx not aptx hd like is supose note 8 to have but dont activate....always revert to SBC
I tryed an app call "media codec info" and aptx is not apering in the list so i dont know if is realy activ or not....

Hi, after april update its working good....
Diference in quality sound is huge...thanks to who try to help me !

Do you have anything else connected to your phone via Bluetooth, at the same time? Like a Samsung Gear watch, Plantronics Headset, ...
If the second device is not aptx compatible the phone will stay in sbc on both/all devices.
I had the same problem but it got solved as soon as the Sennheiser Momentum was the only device connected to the phone by Bluetooth.
After disconnecting all other devices, stop then restart bluetooth. It should connect automatically to your headphones on aptx.
Hope this helps.

You can't enable it on a device that doesn't support aptx. if the device supports aptx it will be enabled automatically in developer settings. When you disconnect it will go back to SBC

You have to turn off the "Dual Audio" option in settings... Will work after that

Apt-X Support?

So, I tried choosing "Apt-X" from within the developer settings - but it doesn't stick. I know my headphones support it, and I looked up the SD660 - it has support for it as well. So, is there a way to enable Apt-X on the A2?

When you say "stick" u mean u can't select it? I can select either of the AptX options and they stay selected. But I'm not closing settings and shutting off the phone to check if it's still "sticking".
If you can't select them, it may be some other BT setting you've changed that's preventing those from being selected? All of my other BT selections are of the 'Auto' type.

AsItLies said:
[...] But I'm not closing settings and shutting off the phone to check if it's still "sticking". [...]
Click to expand...
Click to collapse
Thats exactly right - I can select them, but back out of settings and then check again and its back to the default (auto). I also tried changing the setting while my headphones were connected - in that case, it doesn't even change temporarily and will stay on AAC.

Same here it always goes back to default setting.. can't even use srgb mode

I think the device build is missing the aptx libraries. Currently aptx is not supported. Maybe they will integrate this in any coming release, but I wouldn't count on that.

Weird enough the device is able to use AAC apple Bluetooth driver.
Sent from my Mi A2 using Tapatalk

soulicro said:
Thats exactly right - I can select them, but back out of settings and then check again and its back to the default (auto). I also tried changing the setting while my headphones were connected - in that case, it doesn't even change temporarily and will stay on AAC.
Click to expand...
Click to collapse
After further reflection;
Remembered there are other USB settings that don't persist also. Change the USB connection type (say from Midi to Charge Only), back out, return...
It's not persistent either.
I found a way to work around it, for my purposes anyway, just leave the settings app up, don't close it. And sometimes just connecting with USB set it back, so would have to reset it again. But eventually it worked.
Kind of a pain. Because Android One and Lineage are so similar, I'd check in Lineage forums to see if there's a fix for that.

Small update: I installed Magisk and tried applying two separate modules that should add the Apt-X library files to the phone, but no luck. I've resigned to going back to stock and being hopeful that as community support starts ramping up for our device, we'll see a solution.
Oh well! AAC will need to hold us over 'til then.

need aptX support also

Just came across this in a MiA1 thread, it seems (like camera2API) that it has to be enabled (root access needed) for it to work;
https://forum.xda-developers.com/mi-a1/how-to/guide-enable-custom-bluetooth-audio-t3744371

I can't check, but I saw on another forum that someone enabled aptx this way (and noticed sound improvement): connect headphones, start palying music and only then enable aptx in developer settings. I think you should try it.

AlexX333BY said:
I can't check, but I saw on another forum that someone enabled aptx this way (and noticed sound improvement): connect headphones, start palying music and only then enable aptx in developer settings. I think you should try it.
Click to expand...
Click to collapse
Where did you read this?

pianistaPL said:
Where did you read this?
Click to expand...
Click to collapse
4pda.ru

AlexX333BY said:
I can't check, but I saw on another forum that someone enabled aptx this way (and noticed sound improvement): connect headphones, start palying music and only then enable aptx in developer settings. I think you should try it.
Click to expand...
Click to collapse
Could anybody verify this method?

AsItLies said:
Just came across this in a MiA1 thread, it seems (like camera2API) that it has to be enabled (root access needed) for it to work;
https://forum.xda-developers.com/mi-a1/how-to/guide-enable-custom-bluetooth-audio-t3744371
Click to expand...
Click to collapse
Does not work for me

soulicro said:
So, I tried choosing "Apt-X" from within the developer settings - but it doesn't stick. I know my headphones support it, and I looked up the SD660 - it has support for it as well. So, is there a way to enable Apt-X on the A2?
Click to expand...
Click to collapse
I have the same with my Sony MDR-1000X. They support aptx to. But the A2 won't stick to it

a5c said:
Could anybody verify this method?
Click to expand...
Click to collapse
doesn't work for me. it immediately switches back to sbc.

soulicro said:
Small update: I installed Magisk and tried applying two separate modules that should add the Apt-X library files to the phone, but no luck. I've resigned to going back to stock and being hopeful that as community support starts ramping up for our device, we'll see a solution.
Oh well! AAC will need to hold us over 'til then.
Click to expand...
Click to collapse
I used to have a MI Max and I was able to enable apt-x hd after installing some libraries with magisk. Which process did you follow? I still can't try it on my phone.

apt-x on Mi A2? Yesss! i did it! https://forum.xda-developers.com/mi-a2/help/apt-x-mi-a2-yesss-t3854813

rulezman said:
apt-x on Mi A2? Yesss! i did it! https://forum.xda-developers.com/mi-a2/help/apt-x-mi-a2-yesss-t3854813
Click to expand...
Click to collapse
Just got the official October update. Aptx is supported nativly now. No need to install any magisk module.

bluetooth codec not staying

US at&t 9.0, unkodified. I can select bluetooth audio settings in developer mode butnthey revert back to default upon disconnection. Any way to make permanent?

Not yet it seems as others have reported the same issue

This is my default Bluetooth Codec on ATT official Pie update. I never checked this on 8.1, does anyone know what it was set to on 8.1 and is this what you guys are talking about?

EzEddie said:
This is my default Bluetooth Codec on ATT official Pie update. I never checked this on 8.1, does anyone know what it was set to on 8.1 and is this what you guys are talking about?
Click to expand...
Click to collapse
Here is my snapdragon SM-N960W stock Bluetooth settings on Oreo v8.1.0
Mine revert back to this any time I try changing them. Only one that sticks is Bluetooth AVRCP I can run it from 1.4 up to 1.6. The rest always revert to the same as yours. See my stock note 9 screenshot.

Bluetooth Codec only sticks if an bluetooth audio device is connected and if this device also supports the selected codec. Else the codec always reverts back to sbc.
When I connect my bluetooth headphones for example it switches automatically from sbc to abtx, as this was the codec I last used with this device. Same with other devices and codecs.

note 9 with Sony WH1000 XM3
Just found that if you go to the Sony app:
Sound quality mode = Priority on sound mode
Then go back to developer options the bluetooth audio codec jumps to aptx and stays there.
Not as good as LDAC but better than SBC.

Is there a audio booster

Hey people
Just wondering as ime struggling to root my p30 Pro is there anyway to boost the headphone volume
I no there was a few mods for the Samsungs etc

Im using goodev´s, give it a try.

Just get a USB C DAC dongle. Both the HTC and Hidisz ones work well and increase both the volume and sound quality.

WhiteDain1 said:
Hey people
Just wondering as ime struggling to root my p30 Pro is there anyway to boost the headphone volume
I no there was a few mods for the Samsungs etc
Click to expand...
Click to collapse
I had same problem - one easy fix (potentially) is to change audio codec to SBC codec.
Go to Settings -> Developer options -> Bluetooth Codecs and select SBC.
Now I cannot turn volume up to 100% as its too loud for me.
P.S. Headset needs to be turned on and connected to your phone before you can select a new codec.

shaoran23 said:
Im using goodev´s, give it a try.
Click to expand...
Click to collapse
Hi is this a app?
What is it?

WhiteDain1 said:
Hi is this a app?
What is it?
Click to expand...
Click to collapse
Yes, its an app, you can find it on google market.

dezborders said:
I had same problem - one easy fix (potentially) is to change audio codec to SBC codec.
Go to Settings -> Developer options -> Bluetooth Codecs and select SBC.
Now I cannot turn volume up to 100% as its too loud for me.
P.S. Headset needs to be turned on and connected to your phone before you can select a new codec.
Click to expand...
Click to collapse
Is this a root method because whether the USB c headset is connected or not. It is still greyed out
Sent from my [device_name] using XDA-Developers Legacy app

shaoran23 said:
Yes, its an app, you can find it on google market.
Click to expand...
Click to collapse
I have the XEU stock firmware (not rooted) and I can change the codec setting in developer options with Bluetooth headset connected or disconnected

dezborders said:
I have the XEU stock firmware (not rooted) and I can change the codec setting in developer options with Bluetooth headset connected or disconnected
Click to expand...
Click to collapse
Goodev´s, its an app for volume boosting, not meant for changing audio codec.

shaoran23 said:
Goodev´s, its an app for volume boosting, not meant for changing audio codec.
Click to expand...
Click to collapse
I had little success with Goode’s, all it did was cause distortion and not actually boost the sound levels

dezborders said:
I had little success with Goode’s, all it did was cause distortion and not actually boost the sound levels
Click to expand...
Click to collapse
I guess something is better than nothing...I couldn´t handle p30 lite´s awful sound so ended replacing it with a xiaomi note 8 pro, just to find out, it also has a very bad sound output...:laugh:

LDAC Playback quality stuck on Best Effort, unable to change

I have a 4XL and have noticed that it is not possible to change the Bluetooth settings under developer settings. For example I have Sony WH1000 M3s and whilst it connects using LDAC it defaults to ‘Best Effort’ for LDAC quality settings and cannot be changed. It also will not let me choose another codec such as APTX-HD.
My understanding is that on Pixels (well for the Pixel 3 at least) that best effort results in a lower bitrate than SBC? So this is potentially crippling thre audio quality.
Anybody else noticed this? If so, any solution?

Lucky you.
I just picked up a pair of V-Moda Crossfade 2 Wireless Codex cans, and I can't get any other codec besides SBC working via the Developer options.

Yes, I have same and noticed that.
Trying to use AptX HD also doesn't stick. You can do it in Developer Options by messing with other BlueTooth settings first to match what AptX HD would allow but the next time I connect my headphones it's gone back to LDAC.
I think the main problem is Sony's Headphones app which defaults to LDAC (of course as it's Sony's proprietary codec!) and lack of controls to use other codecs and settings.
In that app I have Sound Quality preference selected at the bottom which actually may be using a better quality setting, it just isn't reflected in what you see in the Developer Options settings.

Interesting, the LDAC issue might not be fixable but maybe removing the Sony app will allow aptx-hd to be selectable?
Btw, other droids are not much better. Samsung’s do let you change the setting but revert back to best effort every time you connect. Only the P30 pro seems to remember but then Huawei have put that option into the normal settings rather than leave it buried in developer settings.
Sent from my iPad using Tapatalk

arsenal74 said:
Interesting, the LDAC issue might not be fixable but maybe removing the Sony app will allow aptx-hd to be selectable?
Btw, other droids are not much better. Samsung’s do let you change the setting but revert back to best effort every time you connect. Only the P30 pro seems to remember but then Huawei have put that option into the normal settings rather than leave it buried in developer settings.
Click to expand...
Click to collapse
On the Samsung Note 10+ 5G now allows selection of best audio quality for LDAC, but the the connection quality between the Sony XM3s and the 10+ is very poor. All pointless.

Kind of begs the question as to how much the on paper advantage android has with LDAC and APTX-HD really counts in the real world.
Honestly, irrespective of codecs I actually think iPhones sound better over Bluetooth which is a massive shame and totally unnecessary.
Sent from my iPad using Tapatalk

arsenal74 said:
Interesting, the LDAC issue might not be fixable but maybe removing the Sony app will allow aptx-hd to be selectable?
Btw, other droids are not much better. Samsung’s do let you change the setting but revert back to best effort every time you connect. Only the P30 pro seems to remember but then Huawei have put that option into the normal settings rather than leave it buried in developer settings.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
Would the headphones even work without the app? I haven't tried.
Would they default to some built-in setting without the app to communicate with?
You go first!

Headphones definitely work without the app, I have used them before on a previous phone and forgot to install it.
BTW everything works as it should the P30 pro, you do not even have to go into developer settings to change it.
Sent from my VOG-L29 using Tapatalk

I'm also unable to get my 4XL into 909/990 kbps mode, but I noticed that Pixel 4 XL seems to default to 606/660 kbps mode, which is more or less comparable to aptX HD(576 kbps). And I know for a fact that this is not an issue with the headphones or the app, since I get 909/990 when I connect the same headphones to Sony's Android devices with the app installed via LDAC Bluetooth connection.

Interesting, my 4xl defaults (and is stuck in) to best effort not 660 balanced mode.
I think on Pixels best effort is circa 330 kbps
Sent from my VOG-L29 using Tapatalk

shaobocui said:
I'm also unable to get my 4XL into 909/990 kbps mode, but I noticed that Pixel 4 XL seems to default to 606/660 kbps mode, which is more or less comparable to aptX HD(576 kbps). And I know for a fact that this is not an issue with the headphones or the app, since I get 909/990 when I connect the same headphones to Sony's Android devices with the app installed via LDAC Bluetooth connection.
Click to expand...
Click to collapse
Always defaults to Best Effort here which is 330kbps for Pixel 3 according to https://www.soundguys.com/understanding-bluetooth-codecs-15352/
I can set it to something else and when I next go into Developer Options it's back to Best Effort! Same with setting the codec to something else.

Pixel 4's best effort seems to be 606/660, not 303/330. At least that's what the bug report says. If the 3 only connects at 303/330, that's gonna be a problem when using new BT5.0 stuff from Sony. They're using an MTK chip for BT5.0, so no aptX, only SBC, AAC and LDAC on BT5 stuff from Sony.

shaobocui said:
Pixel 4's best effort seems to be 606/660, not 303/330. At least that's what the bug report says. If the 3 only connects at 303/330, that's gonna be a problem when using new BT5.0 stuff from Sony. They're using an MTK chip for BT5.0, so no aptX, only SBC, AAC and LDAC on BT5 stuff from Sony.
Click to expand...
Click to collapse
That's interesting and encouraging, thanks for that.

That is interesting, sound guys testing of the 3 and 3a indicated 330 for best effort.
Sent from my iPad using Tapatalk

shaobocui said:
Pixel 4's best effort seems to be 606/660, not 303/330. At least that's what the bug report says. If the 3 only connects at 303/330, that's gonna be a problem when using new BT5.0 stuff from Sony. They're using an MTK chip for BT5.0, so no aptX, only SBC, AAC and LDAC on BT5 stuff from Sony.
Click to expand...
Click to collapse
Out of interest, how have you been able to tell the bitrate it used for best effort?
*
Sent from my VOG-L29 using Tapatalk

i was under the impression that this is relative to the device you connect.

Hi All,
There is a fix. I have the Sony WH 1000mx3 headphones and the One Plus 7 pro 12/256 fully updated. Enable developer options in settings on your Android phone if you haven't already done so. Remove then reinstall the Sony connect app (your previous settings will remain after the reinstall). Follow the prompt from the Sony app to connect your headphones by bluetooth. When the headphones are connected go to settings, Bluetooth and Device connection, then Bluetooth. Under available media devices you should see your Sony WH 1000XM3 headphones active. Click the settings icon to the right. Turn off HE audio: LDAC.
Open your preferred music streaming application (Tidal) and play music, verify that the headphones are operating. Go to system, then Developer options. Under Networking scroll down to the Bluetooth settings. The Bluetooth audio LDAC Codec: playback quality has now defaulted to Streaming Optimized for Audio Quality. You can now adjust the Audio Codec, Sample rate, and Bits Per Sample to your preference. The settings will stay and won't need to be reapplied.
I hope this helps.
Acbaines

bumping this thread, because I was looking for an answer, this was the closest to it.
I decided to dump the logs with adb, and found that my Pixel 4XL, latest and greatest updates as of May 2020, is negotiating 990 LDAC, with the 1000XM3s.
I can use the dev options to push it around to 330/660/990.
No matter what setting I use prior, if I go to auto, it will negotiate to 990, which is pretty awesome. I have not tested to see if it drops off if you walk away from the phone, but given the BT range I get with LDAC, I'm assuming not.

clwclw said:
bumping this thread, because I was looking for an answer, this was the closest to it.
I decided to dump the logs with adb, and found that my Pixel 4XL, latest and greatest updates as of May 2020, is negotiating 990 LDAC, with the 1000XM3s.
I can use the dev options to push it around to 330/660/990.
No matter what setting I use prior, if I go to auto, it will negotiate to 990, which is pretty awesome. I have not tested to see if it drops off if you walk away from the phone, but given the BT range I get with LDAC, I'm assuming not.
Click to expand...
Click to collapse
That's good news, thank you for that.

How to know the bit rate is 990 using best adaptive?