Database Develop

aptx HD

Hi, I understand the P20 Pro hardware supports aptx and aptx HD butdoes this work out of the box or does a codec need to be installed? I can see it in the Bluetooth section of the developer options but I can't select anything but SBC.
Thanks

jccrawfo said:
Hi, I understand the P20 Pro hardware supports aptx and aptx HD butdoes this work out of the box or does a codec need to be installed? I can see it in the Bluetooth section of the developer options but I can't select anything but SBC.
Thanks
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Do you have compatible head phones?

belloni said:
Do you have compatible head phones?
Click to expand...
Click to collapse
Does the option only change when connected to a compatible Bluetooth receiver? I thought my car receiver was compatible but if that's the case then I guess not.

I had the same issue with regards to Bluetooth defaulting to SBC, after some reading I discovered that it was possible to change the Bluetooth mode on my headphones by holding a button combination, it went from prefer connection to prefer sound quality and unlocked aptx and LDAC on my Sony MDR-1000X. So the P20 Pro is definitely capable of it without any additional codecs.
Maybe read the manual for your device and see if it also has something like this.

Highspeed123 said:
I had the same issue with regards to Bluetooth defaulting to SBC, after some reading I discovered that it was possible to change the Bluetooth mode on my headphones by holding a button combination, it went from prefer connection to prefer sound quality and unlocked aptx and LDAC on my Sony MDR-1000X. So the P20 Pro is definitely capable of it without any additional codecs.
Maybe read the manual for your device and see if it also has something like this.
Click to expand...
Click to collapse
I have this problem too.
On my OnePlus One i can change the audio codec, it should not depend on the bluetooth headphones connected. My Mpow Wolverine sounds way better with the One Plus One, on the P20 pro it sounds like sh*** ;any suggestion?

I have headphones that are both SBC and AAC compatible.
Paired to my pixel, aac works great.
Paired to p20, it sutters, skips and is stuck on SBC

I noticed when there is an actual icon just after the Bluetooth device name of my headphones that says 'APT-X', in the phones Bluetooth settings.... My previous Huawei P9 didn't have it or support it so did surprise me a little as I didn't look into it when switching.

On the P20 you can change the BT codec (in developper settings) but the settings doesn't stay...

killtoo said:
On the P20 you can change the BT codec (in developper settings) but the settings doesn't stay...
Click to expand...
Click to collapse
Yes, same to me.
It's a bit frustrating, seems like i have to buy another Bt headphone, also another usb c headphone.. but that is another problem

Same **** here, guys.
PowerBeats 3 are in AAC with Pixel and S9, but in SBC with my P20 Pro. And I also hate that EQ is not avaliable.
I have emailed Huawei, but those dumb idiots are asking for IMEI and system version... They don't realise, that it's a wide problem....
Dear Dmitriy,
Thank you for contacting Huawei.
We are sorry to hear that you are experiencing this issue. Please provide information as below for further assist:
1. Full Name
2. Contact Number
3. IMEI & Build Number screenshot (This can be found by going to Settings> System> About phone> This will help us analyze the phone.)
Should you have further enquiries, please do not hesitate to contact us at 800-852-6666. Our lines are open Mondays to Sundays from 9.00AM to 9.00PM, including Public Holidays. Alternatively, and for further support, please visit https://consumer.huawei.com/sg/support/
Thank you and best regards,
Carol
Huawei Support Team.
Huawei Consumer
DISCLAIMER:
This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!
------------------- Original Message -------------------
From: - no_reply
Received: 5/13/2018 6:17 AM
To: Huawei SG Support; [email protected]
Subject: Mail Support
SubjectName:Complaints
CategoryNameroduct quality
Usernamemitriy
Country:Singapore(新加坡)
Product:clt-l29
Purchase Date:2018-04-10
Contentear Huawei Team, I have purchased my P20 Pro during a first sales week at your store in Singapore. In general, I am happy with it, but, I have COMPLETELY confused with your audio experience. PROBLEM: I own two pairs of headphones: Bose QuietComfort 30 and PowerBeats 3. I don't understand why I am not able to tweak EQ over the bluetooth! S7 was able to do it, old Sony Z2 was able to do it too, but 1000$ phone by Huawei with triple camera and AI can't provide damn equalizer! I don't need any processing by Dolby, I just want to add some bass, because I am lisening to EDM, not a classical music, I don't need a analytical audio presentation. Then, codec selection is broken! PowerBeats are not able to get their native AAC, and Bose are working in SBC mode. What a shame! I can't tweak audio, and I have to listen compressed nonsense. I didn't expect that I will have to deal with such problem in the 1000$ phone. Please, release the software update, I would like to have at least eq.
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Click to collapse

Has anyone got aptx HD working? Is it much better sound quality than ACC?
Thinking of buying some Sony 1000xM2 which are aptx HD compatible but if the sound quality isn't any better, I won't waste my money

walters2001 said:
Has anyone got aptx HD working? Is it much better sound quality than ACC?
Thinking of buying some Sony 1000xM2 which are aptx HD compatible but if the sound quality isn't any better, I won't waste my money
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Click to collapse
My Sony MDR100's use LDAC and sound great. They have a built in EQ profile that kicks in once they are powered on according to reviews. I could of sworn it was using APTX HD at first but I was mistaken.

Jonathan-H said:
My Sony MDR100's use LDAC and sound great. They have a built in EQ profile that kicks in once they are powered on according to reviews. I could of sworn it was using APTX HD at first but I was mistaken.
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Ah, I didn't know the P20 Pro supported LDAC.
Just got to wait for my Bose to sell on eBay now

Tried on a few different headphones here. Seems apt-X is working, AAC is not.
110 firmware.

My p20 pro is on order and not arrived yet, but what you should try is:
1. Clear bluetooth connection of remembered device
2. Enable Developer settings, go to settings->about phone->click on 'buid number' a bunch of times (8?? from memory)
3. Go to: Settings->developer settings->the bluetooth sections and select whatever you want to be the normal
4. Re-connect your bluetooth device. If its compatible then it will default to your previous selection.
At least, this is how it works on my S8, Zenphone 3 deluxe and Oneplus 3T, with my Sony WH-1000XM2 and audiotechnica headsetsand WI-1000X.
But they all have custom roms and i have never had a Huawei so im not 100% sure.

In theory the Bose QC 35 ii headphones support both SDC and AAC but I can't select AAC in the developer settings. Are others having the same experience?

jccrawfo said:
In theory the Bose QC 35 ii headphones support both SDC and AAC but I can't select AAC in the developer settings. Are others having the same experience?
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Yeah I get the same issue with the bose headphones but ldac works when I connected to a sony speaker

Im in the process of buying some earphones that supportthe newer aptx low latency codec as I will be using them for gaming aswell. We know p20 pro supports aptx and aptx HD but does it support aptX LL

stephen.brader said:
Yeah I get the same issue with the bose headphones but ldac works when I connected to a sony speaker
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Yeah just received my Anker SoundBuds Curve headphones and it shows aptX next to the connection in the bluetooth settings. I guess AAC isn't supported as it's not listed on Huawei's tech specs page- https://consumer.huawei.com/uk/phones/m/p20-pro/tech-specs/ I also don't see aptX LL on there so I supposed that's also not supported

I've changed nothing. Only installed .128 Firmware with funky Huawei. When I connect my Ultrasone Sirius Bluetooth Headset there is automatically a aptx-Icon near the name. Nothing to change in developer-settings. See my picture on instagram:
https://www.instagram.com/p/BjJm7k2D1pb/?taken-by=mmeidl78

Mate 10 Pro LDAC Playback Quality

Hi, got a Huawei Mate 10 Pro BLA-L29 8.0.0.136(C185) and a Shanling M0 as a Bluetooth receiver. When I get them connected using LDAC, there are two menu sections where I can set the audio quality to be fed to the M0. One is the Developer Options where, apart from selecting the BT codec itself, I can set sample rate at 44.1 to 96 kHz, bit depth of 16 to 32 bits per sample, and stream bitrate at 330 to 990 kbps. These settings behave in a weird manner, always reverting to default every time I disconnect the BT or even while it's connected. The other instance is the properties of an individual BT device where I can set the LDAC playback quality to either "Optimized for audio quality" or "Balanced audio and connection quality".
Problem: if the BT device is "Optimized for audio quality", I only get decent transmission if stream bitrate is set to 660 kbps or lower in the Developer Options. Inversely, if the latter is set to 990 kbps, it only works decently if the device-specific setting is "Balanced audio and connection quality". If both are set to maximum audio quality, the playback starts gagging violently, interruptions happening up to twice a second if the phone is active and like once every five to ten seconds if the screen is off (the two devices 5 inches away from each other with nothing but air between them).
I brought the Shanling M0 to the nearest Sony store and paired it with a demo phone with LDAC audio quality set to 32/96 at 990 kbps and it worked like a charm without a single hiccup.
Anyone else has this issue and/or aware of a fix?

I have been to a number of stores since the original post and was able to pair my Shanling M0 to various devices:
1. Huawei P20, Android 8.1, Bluetooth 4.2 - same problem.
2. Samsung Galaxy S9+, Android 8.0, Bluetooth 5.0 - no problem.
3. Samsung Galaxy A6, Android 8.0, Bluetooth 4.2 - no problem.
Apparently, Android version is not responsible for the malfunction, neither is Bluetooth version. It's the manufacturer.

Crap, crossing fingers about having this issue fixed. Have you reported it to Huawei customer service and Shanling's one ?
Thank you for the feedback. I'm interested in this small DAP (nostalgic for my beloved Sansa Clip), even if I'm quite sure I probably won't use the Shanling M0 as BT receiver.

Scalpos said:
I'm interested in this small DAP (nostalgic for my beloved Sansa Clip), even if I'm quite sure I probably won't use the Shanling M0 as BT receiver.
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If you ask me, you should just grab your money and go get it, because it works fine with other phones than Huawei. Even with mine, if I set it to "Balanced audio and connection quality", it's doing great. Actually, the LDAC standard bitrate of 660 kbps is amply sufficient to deliver music from major streaming services like Google Play Music. Whatever the problem is, I don't believe it's Shanling's fault, because the intensity of gagging depends heavily on whether the phone screen is on or off, which has nothing to do with connection quality.
As to the DAP itself, I find its sound signature and stage presentation nothing short of amazing, at least on par with my favorite Hidizs AP100 and far better than vivo Xplay6 or anything else I tried. Sansa Clip+ is nowhere near. The way I feel right now, I'm far more likely to ditch the Huawei phone than the Shanling DAP, because there are reasonable alternatives to the former, but not the latter.

anton79ru said:
If you ask me, you should just grab your money and go get it, because it works fine with other phones than Huawei. Even with mine, if I set it to "Balanced audio and connection quality", it's doing great. Actually, the LDAC standard bitrate of 660 kbps is amply sufficient to deliver music from major streaming services like Google Play Music. Whatever the problem is, I don't believe it's Shanling's fault, because the intensity of gagging depends heavily on whether the phone screen is on or off, which has nothing to do with connection quality.
As to the DAP itself, I find its sound signature and stage presentation nothing short of amazing, at least on par with my favorite Hidizs AP100 and far better than vivo Xplay6 or anything else I tried. Sansa Clip+ is nowhere near. The way I feel right now, I'm far more likely to ditch the Huawei phone than the Shanling DAP, because there are reasonable alternatives to the former, but not the latter.
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Click to collapse
Indeed, I started following Head-fi.org's thread few weeks ago, this device looks great.
I currently own a Cowon Plenue D for more than 2 years, I'm quite happy with it: relatively small, great battery life and sound. But I'd like to have a smaller good DAP I can bring with me when I run, or simply don't want to suck smartphone's battery. I bought a Sansa Sport Clip+ (BT DAP) one year ago, crappiest DAP I ever met...
What's your battery life experience using BT head/earphones wiht this DAP ?

Hello there,
Just to share the using LDAC experience with a mate 10 pro (BLA-L29 145 (C432))
I have a Sony headsets (WH-1000XM2) and it works just fine, I'm able to use LDAC perfectly, sound is very good but you need to be close to the phone, 5m apart and it starts to break.
I know its not the same situation, but this is my experience.
Best regards.

And the volume?
Mine with my sennheiser 4.50 BT NC is very low..

Scalpos said:
What's your battery life experience using BT head/earphones wiht this DAP ?
Click to expand...
Click to collapse
I have no such experience, I only use M0 as a BT receiver with wired IEM connected to it. I never even bothered to measure battery life, since it's more than two days of my regular use, i connect it to a USB port earlier than I need to charge.
sartan said:
And the volume? Mine with my sennheiser 4.50 BT NC is very low.
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Click to collapse
If you want to control volume on your headphones, you need to set it to maximum on the DAP. The rest of it will be the responsibility of your headphones' integrated amp - if the volume's too low, then it's just not powerful enough, there is no way a bluetooth source can fix that, as it does not transmit loudness.

sadmam said:
Hello there,
Just to share the using LDAC experience with a mate 10 pro (BLA-L29 145 (C432))
I have a Sony headsets (WH-1000XM2) and it works just fine, I'm able to use LDAC perfectly, sound is very good but you need to be close to the phone, 5m apart and it starts to break.
I know its not the same situation, but this is my experience.
Best regards.
Click to expand...
Click to collapse
Thank you very much indeed, because that's exactly the diagnostic step that I missed. Need to try that to locate the problem more precisely. Are you sure that the LDAC playback quality setting in your bluetooth device options was at "Optimized for audio quality"?

anton79ru said:
I have no such experience, I only use M0 as a BT receiver with wired IEM connected to it. I never even bothered to measure battery life, since it's more than two days of my regular use, i connect it to a USB port earlier than I need to charge.
If you want to control volume on your headphones, you need to set it to maximum on the DAP. The rest of it will be the responsibility of your headphones' integrated amp - if the volume's too low, then it's just not powerful enough, there is no way a bluetooth source can fix that, as it does not transmit loudness.
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Click to collapse
With other smartphone is working perfectly and with strong volume.
Where is possible to maximize the volume on the DAP? Simply with volume buttons?
Thanks.

sartan said:
With other smartphone is working perfectly and with strong volume.
Where is possible to maximize the volume on the DAP? Simply with volume buttons?
Click to expand...
Click to collapse
I would suggest that you go to the Shanling M0 thread on head-fi, there's a company representative on that forum who's very cooperative, you should describe your issue to him. I wish I could give you a hand, but my experience is limited to operating the volume wheel on the DAP.

anton79ru said:
Thank you very much indeed, because that's exactly the diagnostic step that I missed. Need to try that to locate the problem more precisely. Are you sure that the LDAC playback quality setting in your bluetooth device options was at "Optimized for audio quality"?
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Click to collapse
Yes... it has to be... or it wont use LDAC at all... it will use APTX or something else... LDAC is only used on the setting "Optimised for audio quality".

Audio quality drop on bluetooth

Hi everyone
Little bit lost on this and not sure if it's just me but hoping someone can help or point me somewhere. I have a s10+ UK edition. And a Samsung galaxy watch.
When I connect the phone to the car the audio is low quality and hisses a lot. When I put the watch into plane mode. Cutting it off from the phone. All is normal.
Have never seen this happen before. Any ideas?
Thanks

So you have bluetooth connected to the watch and car at the same time?
If so, my guess would be a setting in the watch for the volume of music. Or in the phone, go to settings / bluetooth / advanced / dual audio. Select it and play with the settings to setup what to do when two bluetooth audio devices are connected

ninjatiger26 said:
Hi everyone
Little bit lost on this and not sure if it's just me but hoping someone can help or point me somewhere. I have a s10+ UK edition. And a Samsung galaxy watch.
When I connect the phone to the car the audio is low quality and hisses a lot. When I put the watch into plane mode. Cutting it off from the phone. All is normal.
Have never seen this happen before. Any ideas?
Thanks
Click to expand...
Click to collapse
Had the same problem with my cheap external bluetooth to FM adapter.
Turn on Developer Options and adjust the bluetooth profile while connected to your car audio.
Having Dolby Audio set to auto might also have an impact.

Thanks for the advice but no luck so far.
The settings under developers let me change when nothing is connected but they revert back to sbc soon as I leave the menu. And they are locked out when connected.
Also dual audio does nothing.
It only has the issue when the watch is connected.
As if its taking the bandwidth.

@ninjatiger26
@theanykey asked you to change the AVRCP version.
You can only change the audio codec from the default one (SBC) to something like aptX if your receiver supports it. And yes, you can not change the codec on the fly while playing.

Titokhan said:
@ninjatiger26
@theanykey asked you to change the AVRCP version.
You can only change the audio codec from the default one (SBC) to something like aptX if your receiver supports it. And yes, you can not change the codec on the fly while playing.
Click to expand...
Click to collapse
Apologies for the delay, has been a mad few days!
Sadly changing the AVRCP didnt help on all versions.
It seems there maybe a weird one however on the codec. It reverts to SBC which from a bit of muddled googling is all my receiver supports. from non iPhone devices. However, it takes AAC if its a iphone.
Seems odd to me however they would limit it. Like i said this is from googling so maybe incorrect.
the stranger part is however i paired up a Oneplus 6 and the watch all was fine on SBC codec. its just watch and the s10+ it has an issue.
Admit very lost on this one.

I'm having the exact same issue. I've got an S10 Plus and a Galaxy Watch Active (both in the brazilian versions), and there is a noticeable crackling and loss of quality when I play music on my car stereo while the phone is connected both to the car and the watch. If I put the watch in airplane mode, the issue is gone.
Also, it only seems to happen with my car. I've tried to replicate the issue with my Sony WH-1000XM3 headphones and an Anker bluetooth speaker, but with those devices there is no noticeable loss of audio quality.
I've tried resetting bluetooth setting, messing with the codecs in developer options and pairing both devices again multiple times.
Anyone got any ideas?

Camerena said:
I'm having the exact same issue. I've got an S10 Plus and a Galaxy Watch Active (both in the brazilian versions), and there is a noticeable crackling and loss of quality when I play music on my car stereo while the phone is connected both to the car and the watch. If I put the watch in airplane mode, the issue is gone.
Also, it only seems to happen with my car. I've tried to replicate the issue with my Sony WH-1000XM3 headphones and an Anker bluetooth speaker, but with those devices there is no noticeable loss of audio quality.
I've tried resetting bluetooth setting, messing with the codecs in developer options and pairing both devices again multiple times.
Anyone got any ideas?
Click to expand...
Click to collapse
See if the problem persists when you only share your Bluetooth audio to your vehicle and not calls, contacts, or messages.

Outbreak444 said:
See if the problem persists when you only share your Bluetooth audio to your vehicle and not calls, contacts, or messages.
Click to expand...
Click to collapse
Just tried it and still got the same issue... I've pretty much given up by now.. hoping for a future update to solve this..

Camerena said:
Just tried it and still got the same issue... I've pretty much given up by now.. hoping for a future update to solve this..
Click to expand...
Click to collapse
Why not Google it?maybe you will get a solution for this problem.

Same issue here on my s10+. When playing any audio in my car via BT i hear the distortion/hissing noise especially when the song has a higher treble frequency.
I have just about tried all fixes i could find on Google, and no luck.
When connecting to my ear buds (Jabra Elite 65t) it disappears and checked in developer mode that it supports to AAC for BT Codecs.
But when connecting to the car it reverts to SBC.
The issue clearly lies on Samsungs side, as my brother has a Huawei p30 Pro, also has bluetooth 5 and plays amazingly well in all aspects (Bass-Mids-Treble).
I know I'm posting this almost a year later, but i am desperately looking for a fix.
SN. I have recently updated my phone to Android 10, despite all the complaints to Samsung from many users... Sadly this issue has not beeing fixed on my side.
Does any of you still have the same issue?

I have the same issue with S9(android 10 ui2)
- no dou audio diable option
- bluetooth conected only to my earphones, with no car.

I’ve been a Samsung phone user since the S5 and this issue persists across all their phones since at least that one. The only real solution is to avoid the SBC codec or turn off your watch while listening to music. It will never be patched as it’s been going on for over 6 years. In the early days Galaxy phones only really used SBC so you couldn’t avoid it.
APT-X and AAC are your best options. Good luck finding those on a car system. You can easily find headphones that support them.

Bluetooth audio delay

Hello, I have been intensively googling for the past 2 days but couldn't find any permanent solution to my problem, which is bluetooth audio delay. I own Bose Soundsport Wireless headphones and I have never had a problem with them when it comes to audio delay. I just bought a new P30 pro and while watching videos on youtube or in any video player I get noticeable audio delay. I found people complaining about this issue with other Huawei devices as well. The only solution I found is temporary - in developer settings changing the bluetooth codec from aac to sbc. Sadly, this settings gets reset every time the headphones are connected. For a premium device like p30 pro I would expect much more polished experience. Does anyone know how to solve this?

Iriroro said:
Hello, I have been intensively googling for the past 2 days but couldn't find any permanent solution to my problem, which is bluetooth audio delay. I own Bose Soundsport Wireless headphones and I have never had a problem with them when it comes to audio delay. I just bought a new P30 pro and while watching videos on youtube or in any video player I get noticeable audio delay. I found people complaining about this issue with other Huawei devices as well. The only solution I found is temporary - in developer settings changing the bluetooth codec from aac to sbc. Sadly, this settings gets reset every time the headphones are connected. For a premium device like p30 pro I would expect much more polished experience. Does anyone know how to solve this?
Click to expand...
Click to collapse
No delay on youtube after update .178 here.
Dont know what may be your problem.

I don't know either. I am on 185 I received through OTA. Hopefully I won't have to do a factory reset.
Are you on wifi while connected to bluetooth earphones?

Ok, realuzed it's probably related to Dolby Atmos. Turned off fixes the problem. For now.
Edit: Okay, it seems unrelated to Dolby Atmos. Sadly, it's back and I can't figure out why. Strange thing is that it only happens on this phone. I don't have any problems with my old LG G6.
I use my LG for hotspotting currently. While watching a movie broadcasted from Huawei on a TV connected to the same hotspot, there is no delwy whatsoever. I would assume there would be a delay considering the data transfer: From LG to Huawei back to the LG and to the TV. I am wondering if this would be solved by a factory reset. I have already cleared cache and it didn't help.

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.
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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.
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Out of interest, how have you been able to tell the bitrate it used for best effort?
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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.
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That's good news, thank you for that.

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