Set a specific Bluetooth Codec in the Developer-Options - Samsung Galaxy Note 9 Questions & Answers

Hi Guys,
i am coming from an iPhone X and am now using a Note9. The Phone is absolutely great and i dont want to look back. Everything works fine, everything is really fluid just like it should be. But there is one annoying thing, that bothers me to hell: Bluetooth-Streaming Quality while Playing Music.
I am using several devices via Bluetooth: Bose Soundsport Free, Bose QC35II, Harman Kardon Go+Play and i am listening to Music in my Golf 7 via Bluetooth. Listening to music via the Bose Devices works really good. In the Developer Option, you can see that the Note 9 is using the AAC Codec, which the Bose do support. The Note 9 changes to AAC automatically.
When i am using the Harman Speaker and listening in my car, the Note 9 will stay at SBC (Standard Bluetooth Codec). This isnt really a problem for me, because the iPhone did it too. But the quality is worse on the Note 9 compared to the iPhone. On the Note 9, you can hear cracking noise in the Highs and the sound is overall not very good - the iPhone does this better with SBC (or stays with AAC even when the conneced device does not support it).
I had the same problem last year with my Oneplus 5. But with the OP5, i simply changed the Bluetooth Codec to always be APTX. This totally worked for me, even if the Bluetooth Device didnt support APTX. But on the Note 9, it will always change back to SBC, when i connect my Harman Speaker or my car.
I think it is just a bug. I didnt find a workaround. This is just a simple thing but it bothers me to hell... My mother's S9 does the same. It just doesnt save the setting.
The reason why i am making a thread is simple: Samsung does have a Samsung Members / Plus / Care (it depends where you are) App, where you can send in bugs, that you found.
Even if this bug doenst bother you, it would be very nice, if you can send in a request for changing this behaviour. That would help me (and maybe others), so that the Bluetooth Listening Experience will be as good as the Rest of the phone.
Thanks for the help.
If anyone knows a workaround for my problem - please let me know. At this stage, i cannot use my Harman Speaker und my Car Audio via Bluetooth.

the note 9 is an android device. So nothing is stopping you from 'fixing' it yourself. as you might not have realized yet, this is not a 'samsung' issue. you yourself said the onePlus also had the same issue.... its an issue of Android 8.
Anyways:
root and install the magisk module. If you are on a snapdragon device then are probably screwed. But sooner or later root or some other work around might arise...
good luck

It is definitly a Android Thing. But the fix for that Problem should be easy and is build into Android itself.
The Problem is, that Samsung does not save the codec, that i choose manually. The Oneplus 5 for example does save my setting. And with that Setting, all my Bluetooth Quality Issues would be solved.
So my goal for this thread is simple. It is difficult to motivate Samsung to Change this behaviour, if only one person needs that fix.
So it would be nice, if more people could report this behaviour to Samsung.

It autoswitches to the highest bluetooth codec the connected device negotiates that it can use. Very few autos connect to anything other than SBC. I have a different vehicle and do not experience any audio issues with the highs or lows using SBC. Your previous device was lying to you if you thought it was pushing AAC to a device that only accepts SBC.
Maybe try a different audio player and check the source file itself. I prefer "USB Audio player" because it doesn't alter flac/mp3/etc files and compress them further. Also check your dolby atmos settings.

Of course the phone does lie, if it does connect with APTX, even if the Speaker does support only SBC. But with that type of lying, it does work perfectly.
I am playing music via Spotify and the highest setting there.
In my car, i do have the upgraded Dynaudio System build in, and there i can hear the distortion.
With my Oneplus 5, i solved the problem by manually switching from SBC to APTX (even if my car does not Support APTX, it worked absolutely perfect)
That is the whole point... SBC on Android is not as good as on the iPhone. My iPhone X had no issues with my Harman Speaker, but my Note 9 and the Oneplus 5 do.. On the Oneplus i solved this by changing the Codec to Aptx.
I have a cheap Speaker (70 Euro) for my bathroom. This speaker does also connect via SBC, but doesnt have any problems with my Note. But this Speaker isnt nearly as good as the Harman Speaker or my car audio.
Do me a favor... Connect your SBC Speaker and play Still Got the Blues from Gary Moore.. It is really bad (the quality not the song).. The Bandwith is simply not enough with SBC.. but for some reason my iPhone X didnt had any Problems.. i think it just always used AAC even if the connected device didnt support it..

SuckOr said:
Of course the phone does lie, if it does connect with APTX, even if the Speaker does support only SBC. But with that type of lying, it does work perfectly.
I am playing music via Spotify and the highest setting there.
In my car, i do have the upgraded Dynaudio System build in, and there i can hear the distortion.
With my Oneplus 5, i solved the problem by manually switching from SBC to APTX (even if my car does not Support APTX, it worked absolutely perfect)
That is the whole point... SBC on Android is not as good as on the iPhone. My iPhone X had no issues with my Harman Speaker, but my Note 9 and the Oneplus 5 do.. On the Oneplus i solved this by changing the Codec to Aptx.
I have a cheap Speaker (70 Euro) for my bathroom. This speaker does also connect via SBC, but doesnt have any problems with my Note. But this Speaker isnt nearly as good as the Harman Speaker or my car audio.
Do me a favor... Connect your SBC Speaker and play Still Got the Blues from Gary Moore.. It is really bad (the quality not the song).. The Bandwith is simply not enough with SBC.. but for some reason my iPhone X didnt had any Problems.. i think it just always used AAC even if the connected device didnt support it..
Click to expand...
Click to collapse
play an audio file via a player ie:
power amp. and see if there is also an issue.
might just be the streaming app you are using. it might be just streaming bad/low quality and BT codec is adapting to it.( check streaming app audio settings..)
think of it like trying to convert an 96kbbs mp3 to 320 kbps.
garbage in, garbage out. Except in this case android is simply not upmixing and using high quality codec because there is no need to because source is low.
in power amp audio options, there are advanced audio settings which can allow you to force certain audio qualities. So test a high quality audio file in that player and see if audio is good.
if it is then you know the streaming quality is simply not high enough... which is not suprising as it IS a stream... reason why i also never stream and taking advantage if the 512 gb version if the note 9. to me it is folly to expect high quality from streams.

The music i am playing is from spotify.. Locally saved onto the phone with the maxed out setting - this is 320Kbits. As is said, the Oneplus had no Problem with the same setting after i changed the Codec manually.
But just for the record, i just bought the Song "Still Got the Blues" in the FLAC-Format. I played it via Power AMP on my Harman Speaker - the result is absolutely the same as with Spotify. So the Music is not the Problem.

SuckOr said:
The music i am playing is from spotify.. Locally saved onto the phone with the maxed out setting - this is 320Kbits. As is said, the Oneplus had no Problem with the same setting after i changed the Codec manually.
But just for the record, i just bought the Song "Still Got the Blues" in the FLAC-Format. I played it via Power AMP on my Harman Speaker - the result is absolutely the same as with Spotify. So the Music is not the Problem.
Click to expand...
Click to collapse
did you go to power amp settings and adjust/enable? ...on second picture, go there and press the setting sprocket...multiple settings to adjust.
also if you go to android dev options and set higher quality BT settings and codecs, do they stick when playing audio?

No, if i want to change the Setting while playing, nothing happens. The Note does not allow it while using a Bluetooth Device.
If tried it with ( Power Amp ). Nothing changed. Still bad Quality.

Hi All,
I also want to join in on this discussion, just that I want to use LDAC as I use Sony WI1000X bluetooth headset. I have the same issue of it not sticking to LDAC and reverting back to AptX. So far here is my experience:
- If the headset is not connected, changing to LDAC, exiting from and then retuning to Developers menu would result the codec changing back to AptX
- If the headset is connected then change the codec to LDAC, the codec sticks. But once it is disconnected, it will revert back to AptX
- While the headset is connected, I can switch between codecs in the Dev menu while listening to music and can notice the difference in audio quality
Yeah, would be great if codec of choice can stick or at least switch automatically either by detection or preset. LDAC is awesome and I'm so happy that I can enjoy the codec without using Sony phones (not that they are bad, I just prefer my Note 9).
---------- Post added at 01:50 AM ---------- Previous post was at 01:40 AM ----------
Ok funny enough, as I post my message, I got curious about something. I went to bluetooth menu, click the gear icon on my paired Sony WI1000X, and there it is.... a slider to toggle the LDAC codec on/off.
It is greyed out, so I exit the menu, switched on my bluetooth, came back in that menu, switch LDAC on, checked Dev menu, it is also set to LDAC. Good.
Then I switched off my bluetooth, at this point the LDAC option in Dev menu should have reverted back to AptX.... but it stays in LDAC mode! This is great!
I guess my small inconvenience is now solved, maybe you can try the same for your AptX device.

Can anyone confirm whether AptX Adaptive is included or not (eg. from actually listening, it's still not listed in the Developer Options)? They have removed "Samsung HD" as a codec as well.

I have since my Galaxy S5 the Same Problem.
Galaxy S4
Galaxy S6
Galaxy S7
Galaxy Note 8
The Bluetooth quality is really a mess.
I do not have the Problem with my one plus 4. And also with any kind of iPhones

You can change this in basic Bluetooth settings
If your Bluetooth audio device supports codecs you should find the setting in your Bluetooth connection settings where you find the media audio and call audio settings under them there is the basic codec...
Found this on Reddit . Worked on my Sony wi 1000x

Solved it for note9
I had this problem with the amazing WF-1000XM3 and just couldn't get them to change to AAC.
So the solution was turning off the dual audio option in Bluetooth. I even tested this, and as soon as I turned on dual audio the codec switched back to sbc.
Settings>connections>Bluetooth>advanced>dual audio
And if it doesn't automatically switch over then, force it once through the developer options and it should stay like that thereafter.

I'm tossing my hat into the ring here, because this is maddening. I don't understand how we can all have 2-3 different user experiences on the same device.
OK, so, presumably, we're all on Andoid 9. Since the start of this thread, I imagine updates have played at least a minor role in user experience and menu options.
Here's where I'm at: I've never been able to successfully change AND have the settings found within Developer Options actually "stick". I can access "Bluetooth Audio Codec", and from there I can see SBC/AAC/aptX/LDAC/Scalable/All/Default as options. It does not matter which one I tap on, the result is the same: I can visibly confirm the change was made when selecting the codec I want and the screen goes back to the main Dev Options menu. If I hit the back button, and go right back into Dev Options, it has auto-reverted back to SBC. This is, of course, with no active BT devices connected for audio.
I recently traded in a car which did not support Android Auto, and therefore my only option was BT for audio streaming. When using this, the quality was fine, even subjectively good. However, now I've got a car whose stereo supports Android Auto, but only via USB (not BT). I can confirm that, via the display on the head unit of the infotainment system, it is using (or attempting to use) A2DP for streaming, which would indicate my phone should be using aptX or similar. Even so, the audio quality is absolute ****. If I connect my USB cable, and resume audio via Android Auto, the quality vastly improves. There is no reason why my phone or the BT connection would or should be operating under SBC or any kind of inferior BT codec when streaming. Mind you, all of this is done using the same player: PowerAmp Pro.
TL;DR - Has anyone found a way to forcibly allow all codecs, so that the highest quality codec is used on a per-device basis?

Just the same problem
Yes i have exactlly the same problem
Please Samsung...FIX THIS!!
---------- Post added at 11:52 AM ---------- Previous post was at 11:32 AM ----------
I have tried what KASHY27 said in his post and works perfectly!
Turn off dual audio in bluetooth settings and then click aptx in developers options
Thanks KASHY27!!

SuckOr said:
Hi Guys,
i am coming from an iPhone X and am now using a Note9. The Phone is absolutely great and i dont want to look back. Everything works fine, everything is really fluid just like it should be. But there is one annoying thing, that bothers me to hell: Bluetooth-Streaming Quality while Playing Music.
I am using several devices via Bluetooth: Bose Soundsport Free, Bose QC35II, Harman Kardon Go+Play and i am listening to Music in my Golf 7 via Bluetooth. Listening to music via the Bose Devices works really good. In the Developer Option, you can see that the Note 9 is using the AAC Codec, which the Bose do support. The Note 9 changes to AAC automatically.
When i am using the Harman Speaker and listening in my car, the Note 9 will stay at SBC (Standard Bluetooth Codec). This isnt really a problem for me, because the iPhone did it too. But the quality is worse on the Note 9 compared to the iPhone. On the Note 9, you can hear cracking noise in the Highs and the sound is overall not very good - the iPhone does this better with SBC (or stays with AAC even when the conneced device does not support it).
I had the same problem last year with my Oneplus 5. But with the OP5, i simply changed the Bluetooth Codec to always be APTX. This totally worked for me, even if the Bluetooth Device didnt support APTX. But on the Note 9, it will always change back to SBC, when i connect my Harman Speaker or my car.
I think it is just a bug. I didnt find a workaround. This is just a simple thing but it bothers me to hell... My mother's S9 does the same. It just doesnt save the setting.
The reason why i am making a thread is simple: Samsung does have a Samsung Members / Plus / Care (it depends where you are) App, where you can send in bugs, that you found.
Even if this bug doenst bother you, it would be very nice, if you can send in a request for changing this behaviour. That would help me (and maybe others), so that the Bluetooth Listening Experience will be as good as the Rest of the phone.
Thanks for the help.
If anyone knows a workaround for my problem - please let me know. At this stage, i cannot use my Harman Speaker und my Car Audio via Bluetooth.
Click to expand...
Click to collapse
im using sony xm4 and samsung note 9. note9 keeps going back to bt aac codec. i was able to make it stay to ldac by setting [connecting 2 devices = off] in sony headphone app under system. it was noted in the app that ldac can not be used when this setting is enabled.

2022 and this is still not fixed. A shame android.

Related

[Q] Bluetooth Audio Streaming A2DP Poor Quality

Hi Folks!
Recently got a bluetooth FM transmitter so i can go hands free in the car and use phones music player too
However the audio is very heavily compressed when using A2DP - no bass and the top end frequencies turn to mush - ie not good enough to use
Checked all eq settings and different FM frequencies, no difference
plugged the analogue audio cable direct from the phone to the bluetooth FM transmitter and immediately got perfect sound again
I dont see many poeple talking about this on this forum or many answers but the closest seems to be windows phones can access and modify registry settings to check and increase the bitrate
My current thinking is the bitrate (or bitpool) over bluetooth A2DP is set too low, or when the phone and FM transmitter pair the phone selects a bitrate that's too low for quality audio (but ok for calls)
My question is does anyone know how modify the bitpool settings on the Galaxy S please?
I am going to get a custom ROM and will very happy when the phone is really mine so if that's what it takes I'm up for it
Many many thanks!
DJ LIBRE
Samsung Galaxy S
2.1.1 Eclair on 3 mobile network in the UK
Nexus Drive Transmit Pro (Bluetooth FM transmitter music and hands free car kit)
I have the Galaxy S on 3 UK since August. I use the bluetooth to transmit sound to my Samsung surround sound system (as I don't own a stereo). I don't notice significant quality issues doing this. Are you sure both your devices are supporting A2DP. Not all A2DP devices talking nicely with each other, so you may be failing back to the normal Bluetooth frequencies which are more focus of the vocal range. I'm looking a car stereo's right now that support A2DP so I can stream my audio from my phone straight to my stereo, my phone is becoming the centre of my entertainment!!
I'm running Doc's ROM on my phone, can't recommend moving to his Froyo ROM's and an enhanced kernel enough, my phone is working so much better with his ROM, but there are lots out there to choose from.
I am using A2DP in my car too and I find the sound quality being very good.
The thing is, the default Android audio player (Music Player) is pretty poor and often it lags for me.
Since I moved to MiuiMusic (Search here) all those lags are gone and it works perfectly and smoothly in my car.
Now, as pointed already to you, all BT devices do not communicate flawlessly between each other sometimes...
works great for me, streaming from the SGS to the car CZ 509 deck
i don't even carry CDs in my car anymore
even the lovely sub base sound comes through clearly.
nothing better like a Sonic Massage meanwhile you are driving
I wanted to create a new thread on this, but then I've seen this one. Is there no one with a solution except flashing cyanogen?
It could be a setting on your bluetooth receiver.
For example, I've got a pair of Sony DR-BT21G bt stereo headphones. When you hold a special button combination, it switches it from "high quality" to "any quality", and will just select whatever bitrate it thinks is best, usually, something that sounds about half as good.
Try looking in your manual for troubleshooting and see if there are any settings that you can change on the receiver itself?
awojtas said:
It could be a setting on your bluetooth receiver.
For example, I've got a pair of Sony DR-BT21G bt stereo headphones. When you hold a special button combination, it switches it from "high quality" to "any quality", and will just select whatever bitrate it thinks is best, usually, something that sounds about half as good.
Try looking in your manual for troubleshooting and see if there are any settings that you can change on the receiver itself?
Click to expand...
Click to collapse
Hmm, i using Sony MW600 BT headphones. I've checked the manual, but there's nothing about quality :/
But i dont think that's the problem anyway, as i tried Cyanogenmod and it got perfect quality then. But otherwise cyanogen is quite useless for me on my Galaxy S, its just too buggy. There must be someone who can change the bitpool quality on the stock gingerbread to the highest possible...
Exact same issue for me (as described by DJ LIBRE), I have a Belkin Wireless Bluetooth Music Receiver and the sound quality is horid... it's got nothing on AirPlay which I think is still kind of average quality!
I also wonder if there is a highbitrate setting that can be adjusted?
Running CyanogenMod Nightly #130 on SGS.
After getting used to listening to 24/96 FLAC's with the Voodoo Sound mod enabled with a custom built headphone amp and semi decent can's all I can say is BT Audio is a waste of time!
Has anyone noticed whether the music player was set to 5.1 surround mode? Had a similar issue where turning off the 5.1 fixed the sound streaming...

Oreo poor sound quality / Bluetooth

Hi,
I updated my P10 to Oreo yesterday and I have a big problem. Sound quality on Bluetooth headphones is veeeery low. I'm using Spotify (premium if that's matter). Anybody have this problem? Or maybe a solution.
That's gotta be disappointing! Sorry for your trouble. Do you know if your headphones have bluetooth aptx?
AFAIK, the p10 has bluetooth aptx (https://www.aptx.com/products/huawei-p10) which should result in decent sound quality when paired with aptx compatible bluetooth headphones and speakers. My own very subjective tests comparing my p10 plus vs my non-aptx tablet when paired with a Marshall Woburn speaker supports this claim but I'm still running nouget. I wonder if the aptx is still active in Oreo?
I tried to change a bluetooth codec in developer settings but it's not working so I guess my headphones supports only SBC codec :/
The issue seems to stem from audio Codecs resetting. I have similar troubles with the Mate 9 where the audio is terrible unless I go into the developer options WHILE music is playing and change the settings, then the quality gets better until either a song is paused or something else causes an interruption in the audio playback.
Seems it is a bug. It triggers itself back to SBC only no matter what headphones are connected. I have Phillips with AAC support and the worked fine before upgrade. AptX model I have is not working correctly too. So the only way now is to wait for the fix I think...
Thanks for following up to this thread, Syndirail and ylapas. Since I use bluetooth for music every day I won't be upgrading to Oreo until I know this issue is resolved.
Unexpected surprise - P10 with quite cheap Chinese QCY headphones just connected to high quality aptX audio and sounds great, while Phillips sounds like crap definitely Oreo bug in determining hardware capabilities.
ylapas said:
Unexpected surprise - P10 with quite cheap Chinese QCY headphones just connected to high quality audio and sounds great, while Phillips sounds like crap definitely Oreo bug in determining hardware capabilities.
Click to expand...
Click to collapse
Proof with QCY headphones connected.
My Sony headphone with LDAC is recognized and works very well.
Seems it can be a problem with headphones which does not have aptX / aptX HD or LDAC support, but have AAC. In Android 7 it worked well, in Android 8 it is for some reason limited to SBC only and never turned on, even if supported by the headphones.
ylapas, how can I view the bluetooth stats as you did in your attachment?
mattrask said:
ylapas, how can I view the bluetooth stats as you did in your attachment?
Click to expand...
Click to collapse
Developer options
mattrask said:
ylapas, how can I view the bluetooth stats as you did in your attachment?
Click to expand...
Click to collapse
You need to disconnect blutooth and reconnect, and then turn on your equipment..
My Sony UHP-H1 plays LDac to my Stereo and ht, my Xtz Divine headphones play aptX, and my Audio Pro T3 plays SBC, but it plays SBC from Spotify premium and all codes on Poweramp stunningly great...
SBC don't need to be poor with good signal, and good Dac and speakers...
I can't verify, can someone please do tests measure and verify. Huawei says no, you must buy mate10 or mate10 plus.
I try to get confirmation from Google Android but can't reach them.
I try to contact Sweden Google today.
Please update the thread...
---------- Post added at 08:21 AM ---------- Previous post was at 07:58 AM ----------
I contacted my telephone company on phone.
They are on the case, waiting for confirmation on mail.
Could anyone confirm if other codecs except SBC work? (I've also found issues on the Mate9 forum)
My Sony MF-100x connect only on SBC and the sound quality is not that great (when compared with an iPhone, not sure if only the codec is to blame though .. )
From developer settings any chance is reverted as soon as the dialog closes.
paul678 said:
Could anyone confirm if other codecs except SBC work? (I've also found issues on the Mate9 forum)
My Sony MF-100x connect only on SBC and the sound quality is not that great (when compared with an iPhone, not sure if only the codec is to blame though .. )
From developer settings any chance is reverted as soon as the dialog closes.
Click to expand...
Click to collapse
You must turn off blutooth before you turn on and choose LDac..,
---------- Post added at 07:35 PM ---------- Previous post was at 07:33 PM ----------
Forgot Huawei confirmed that aptX on P10 is working.. still waiting for confirmation on LDac...
Yes, aptX is working on my P10 (Oreo). Tested with Sony MDR XB950B1. Anyone using MDR 1000x to confirm LDAC?
I have Sony UHP-H1 bluray with LDac...
But i dont have time to test now..
I have Jabra BT320S...Not so bad BUT, remains in low quality even after playing in DEV settings... But its not that awful,i can deal with that...will try in car
Edit1...
Ive tried different earphones on my jabra bt.. surprise...the ones offering best audio quality are the one i paid 1.99 $ at Dollarama...really cheap/crappy and unknown mark ...with original settings.
The sound with original Jabra JVC HA-EB75 really sucks...gets better if i push the speaker inside my brain through the ear hahahah
Edit 2..
just found in...you know,that third drawer that we put unused stuff.....some old Samsung from S2 and Woahh...Those im gonna keep :silly:
GAMaus said:
Yes, aptX is working on my P10 (Oreo). Tested with Sony MDR XB950B1. Anyone using MDR 1000x to confirm LDAC?
Click to expand...
Click to collapse
Yes, aptX working fine, just not AAC - all my not aptX equipment is pushed back to SBC only now, even if it supported AAC in version 7 and sounded great.

P20 Pro - poor audio quality on in-car phone system

Hi there,
I replaced my HTC 10 with the P20 Pro and since then i have really poor audio quality when using my hands-free phone system over bluetooth in my car (Mercedes). The quality was good with the HTC and turned bad with the Huawei. I looked up the settings in the developer menu and saw that the BT coded that is used is SBC. When i turn off Bluetooth on the mobile, i am able to select a different codec but as soon as i turn on BT again, SBC is selected automatically again in the menu. Is there anything i can do to permanently select another codec such as aac or aptx? On my HTC, the option for following the "standard setting" is preselected.
facing the same issue with my Ford Focus. Sound is cracking, and the only way to fix it (temporarly) is to reset the connection and made new one. but only works for a few days, then it returns....
Also waiting for a fix, and even in the latest firmware version Cl20C432131 .
Nissan Note 2012
Same problem in my Nissan. I don't know what codec my old galaxy s7 used but the drop in quality when switching to P20 pro was huge. I also cannot permanently change the codec settings. This is a deal breaker.
You should remember that there is 2 ways bluetooth working with sending audio - in handset way (low quality but allows microphone input) and in headphone way (normal quality but no mic input).
Exactly the same issue as me in my Audi. I don't know if I'm glad other people have this issue but at least i know it isn't just me or a fault with my car haha!
People the other end seem to hear me fine. Its not practical to keep connecting and disconnecting each time i want to make a call in the car.
xaik said:
You should remember that there is 2 ways bluetooth working with sending audio - in handset way (low quality but allows microphone input) and in headphone way (normal quality but no mic input).
Click to expand...
Click to collapse
Interesting, I'm using android auto and I believe it switches between these modes automatically. With my old Galaxy S7 I could hear a real downgrade in audio quality when the phone was responding to my voice prompts. On the P20 Pro, the voice prompt responses seem much higher quality than the previous phone but the music is much lower quality - as if it is only using a single mode.
I'm not sure about 'no mic input' though, both phones could can hear voice prompts over the music (as long as I shout!)
Nevertheless I will test with google music only and disable android auto and will report back.
(for me the music quality is always poor even after reconnecting - it does not sound like it is coming over the voice channel, it is more subtle a difference than that)
gilesknap said:
Interesting, I'm using android auto and I believe it switches between these modes automatically. With my old Galaxy S7 I could hear a real downgrade in audio quality when the phone was responding to my voice prompts. On the P20 Pro, the voice prompt responses seem much higher quality than the previous phone but the music is much lower quality - as if it is only using a single mode.
I'm not sure about 'no mic input' though, both phones could can hear voice prompts over the music (as long as I shout!)
Nevertheless I will test with google music only and disable android auto and will report back.
(for me the music quality is always poor even after reconnecting - it does not sound like it is coming over the voice channel, it is more subtle a difference than that)
Click to expand...
Click to collapse
Try connection with car audio in your phone with active option "media audio"
Thanks
xaik said:
Try connection with car audio in your phone with active option "media audio"
Click to expand...
Click to collapse
Thanks, I tried this and it had no effect on sound quality, but......
I need to confess a stupid oversight. It turns out that my Google Music settings specified 'Normal' quality over mobile network. I set this to 'Always High' and restored the original quality of music that I was used to.
So it seems that:-
My car has always used SBC at 44.1 KHz 16bit
Even with this low fidelity Bluetooth connection, it is still possible to distinguish Normal and High quality modes of Google Music.

Poor Bluetooth sound quality / static?

Hi folks. Just moved to a different carrier, we were previous Google Pixel owners, but our new carrier doesn't support them so we had to move to S10s.
The big complaint here is the horrible sound quality coming from the phones to all of our Bluetooth devices. Cars, speakers, living room sound bar. Static-y noises and what sounds like just a far lower quality across all devices than what comes from our Pixels which we still have. Our kids Iphones have no issues playing clean and clear either.
Really frustrating issue, we both use our music service daily and this is darn near a deal breaker.
Any ideas or solutions out there? I've searched high and low to no avail. Thanks in advance!
Anyone? No one else has this issue?
is your phone rooted? Is this a snapdragon or exynos version? If its exynos version, rooted, installed aptx bluetooth codec and viper4android for better audio
Exynos, fully stock here.
No problem with bluetooth audio.
US Snapdragon phone. Completely box stock. Bluetooth even connects at an audibly lower volume. It sounds almost like it's connecting through one of those old FM Bluetooth transmitters. It's terrible. I've fiddled with every solution I can find online for others suffering the same issue, nothing works.
Actually, I didn't want to root my S10. However, the sound quality via bluetooth is so bad that you cant avoid Viper4Andriod.
That was also the case with the S8. At the point Samsung has huge deficits.
Without root / V4A you just have lousy sound quality.
I'd really love to find a workaround that doesn't involve rooting, but if that's all there is.....
I had the same problem with snapdragon unlocked variant. The factory audio quality over Bluetooth was terribly bad. It was tinny.
Interestingly when i used "seperate app sound" feature it has improved. But not as good as exynos variant when i compared.
Steps to follow.
Advanced Audio setting -> seperate app sound -> Turn ON ( select the app and bluetooth device )
Let me know if it works.
Never did find an answer to this question. Found that when it's plugged into a 3.5mm port it's even more noticeable. It's got to be a software issue. The static starts as soon as any music begins, and ends on any song switch or pause. You can actually hear the static 'kick in' right before the sounds start to play. It's horrible. Doesn't do it on my backup phone, or either of my kids' iPhones. Just these two S10s.
Hey man, did you ever find a fix? all of a sudden I started having this issue. If I turn "Call audio" OFF it is fixed and the quality is great again, but with Call Audio on, its crappy, on my car, or headset, same behaviour.
The phone seem to be using the Call Audio profile despite no active call.
Did some more testing, if I hit on "Disconnect" on my car system, I get the "call disconnect" sound and after that the audio is great. The issue seem to be the phone thinking its on a phone call and using call audio profile to stream the audio.

Bluetooth Codec aptX does not work

Hello fellas,
I am creating this new thread as I have searched for relevant topic in this Red Magic 3 Forum and found none.
So let's discuss the issue that I had and I am certain most of you guys red magic 3 owner or Android owners face too.
I have purchased a bluetooth earpiece called pamu slide T6 from indiegogo (this is the URL https://www.indiegogo.com/projects/pamu-slide-born-for-music-never-fall-out#/) and this earpice supports aptX codec which is the latest codec from Bluetooth that can provide a latency as low as 30ms compare to SBC/AAC that about 300ms.
The reason I purchased red magic 3 is solely for gaming purpose, mainly PUBG Mobile and I purchased this bluetooth earpiece just want to try and pair it while playing but when tested, the results are very worst, delay audio, out of sync with the action, jump, crawl, shoot, steps everything in the game audio was delayed so much almost 1 second.
On red magic 3 bluetooth device, I click on its settings and there shown that it is using HD Audio:AAC (meaning it is streaming using AAC codec) which explains the delay because AAC codec streams around 300ms latency (I got this info from soundguys)
Next, I go to developer settings and tried to change the AAC codec to aptX but it just wont stick to aptX after I select it and click Back from developer settings, I go in the settings and it is still showing AAC codec as the codec, not aptX. Tried to restart the phone and re-pair the bluetooth earpiece but still, it sticks to AAC.
So I came to a mind whether my earpiece fool me and I pair the earpiece with my samsung galaxy S7 edge and my s7 edge is using aptX codec so which means my earpiece does support aptX codec and tried PUBG Mobile which I am shocked that it is still delay just the same as using red magic 3, i mean how can it be although my s7 edge has used aptX codec ??
I read a lot on google and most articles said that the problem is not with the bluetooth earpiece but it is the Android issue that does not support real time sync audio with bluetooth earpiece because how the Android OS process their system files etc.
But I just want to make sure that my phone red magic 3 does support aptX codec and I just cant change it to aptX, why ?
Additional findings: While the iphone (IOS) pair with apple airpods, the codec they use is AAC but the results are spectacular, no audio delay in gaming PUBG Mobile, everything is perfect, the steps, shoot, jump, etc are just like using a cable earphone. I am amazed at how IOS developers can do such thing that makes AAC codec stream so perfectly in sync between iphone and their own airpods. I test this using iphone 8+ with apple airpods gen 1
So in the end, the root cause why Bluetooth audio cant work with Android phone is because of the Android itself.
lius90 said:
Hello fellas,
I am creating this new thread as I have searched for relevant topic in this Red Magic 3 Forum and found none.
So let's discuss the issue that I had and I am certain most of you guys red magic 3 owner or Android owners face too.
I have purchased a bluetooth earpiece called pamu slide T6 from indiegogo (this is the URL https://www.indiegogo.com/projects/pamu-slide-born-for-music-never-fall-out#/) and this earpice supports aptX codec which is the latest codec from Bluetooth that can provide a latency as low as 30ms compare to SBC/AAC that about 300ms.
The reason I purchased red magic 3 is solely for gaming purpose, mainly PUBG Mobile and I purchased this bluetooth earpiece just want to try and pair it while playing but when tested, the results are very worst, delay audio, out of sync with the action, jump, crawl, shoot, steps everything in the game audio was delayed so much almost 1 second.
On red magic 3 bluetooth device, I click on its settings and there shown that it is using HD Audio:AAC (meaning it is streaming using AAC codec) which explains the delay because AAC codec streams around 300ms latency (I got this info from soundguys)
Next, I go to developer settings and tried to change the AAC codec to aptX but it just wont stick to aptX after I select it and click Back from developer settings, I go in the settings and it is still showing AAC codec as the codec, not aptX. Tried to restart the phone and re-pair the bluetooth earpiece but still, it sticks to AAC.
So I came to a mind whether my earpiece fool me and I pair the earpiece with my samsung galaxy S7 edge and my s7 edge is using aptX codec so which means my earpiece does support aptX codec and tried PUBG Mobile which I am shocked that it is still delay just the same as using red magic 3, i mean how can it be although my s7 edge has used aptX codec ??
I read a lot on google and most articles said that the problem is not with the bluetooth earpiece but it is the Android issue that does not support real time sync audio with bluetooth earpiece because how the Android OS process their system files etc.
But I just want to make sure that my phone red magic 3 does support aptX codec and I just cant change it to aptX, why ?
Additional findings: While the iphone (IOS) pair with apple airpods, the codec they use is AAC but the results are spectacular, no audio delay in gaming PUBG Mobile, everything is perfect, the steps, shoot, jump, etc are just like using a cable earphone. I am amazed at how IOS developers can do such thing that makes AAC codec stream so perfectly in sync between iphone and their own airpods. I test this using iphone 8+ with apple airpods gen 1
So in the end, the root cause why Bluetooth audio cant work with Android phone is because of the Android itself.
Click to expand...
Click to collapse
Incoherent, contradicting itself, juvenile... This is how this post sounds to me.
Hey, buddy, how about hundred of thousands of people who never experienced your problems with your crappy Indiegogo earbuds?
So in the end, the root cause why Bluetooth audio cant work with Android phone is because of the Android itself.
Click to expand...
Click to collapse
I solve the problem with magisk aptx. Its because aptx nubia not paying Qualcomm? I don't know what. But i have kz aptX and i solve the problem. Btw my bludio don't have aptX or aac codex still works fine in pubg. It's Bluetooth 5.0
Just got the reply from redmagic support and they told me that the phone does not support aptx codec. Lol I am very shocked tho after all it has bluetooth 5 but still no aptx codec.
Well, question answered and mystery solved. Admin can close this thread as no more discussion is needed. Thank you.

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