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Improve Bluetooth audio quality on headphones without aptX or LDAC

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By ValdikSS, Senior Member on 22nd August 2018, 06:13 PM
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24th June 2019, 05:27 PM |#191  
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Installed the latest LineageOs 16, on my smartphone, and try it with Tribit XBoom without success.

It seems Tribit XBoom doesn't support HD SBC...
 
 
25th June 2019, 05:38 AM |#192  
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hi @ValdikSS!
I have tested SBC HD on my chinese car stereo, It does show SBC HD support, However, the sound is distorted.
I tried this on an old device (Redmi Note 3 Pro Kenzo) with havoc OS as my current device is still stock.
Is there anything else that can be done to remove distortion and still achieve better than default SBC output as do believe that audio output in car stereo through bluetooth is definitely poor.

Further, In order to check if its not a device issue, i tested it on external bluetooth receiver which has no distortion at all.
Please advice.
25th June 2019, 08:11 AM |#193  
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Quote:
Originally Posted by abhifx

hi @ValdikSS
I tried this on an old device (Redmi Note 3 Pro Kenzo) with havoc OS as my current device is still stock.

Have you tried Havoc OS build after 23 June (3 days ago)? Before that it had outdated patch. Or better try LineageOS, to make sure.
Most probably your car stereo is not compatible with Dual Channel mode.
25th June 2019, 08:29 AM |#194  
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Quote:
Originally Posted by ValdikSS

Have you tried Havoc OS build after 23 June (3 days ago)? Before that it had outdated patch. Or better try LineageOS, to make sure.
Most probably your car stereo is not compatible with Dual Channel mode.

Thanks for suggestion! Havoc build is bit old and still does not have any build beyond 23 june for kenzo.
I will try Crdroid which is basically lineage + patches.
Btw thanks for the efforts, this is kind of a revolution no one is talking about and everything is open in the spirit of open source.
30th June 2019, 11:58 PM |#195  
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https://issuetracker.google.com/issues/136342164 ← add stars here
10th July 2019, 07:39 PM |#196  
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I'm using LOS 16 right now and noticed that if the earphones support AAC then it uses that instead of SBC HD, it's that the intended behavior? I was under the idea that AAC wasn't recommended since it could use FDK AAC or the SoC encoder which could be worse
11th July 2019, 09:07 AM |#197  
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Quote:
Originally Posted by LieDanG

I'm using LOS 16 right now and noticed that if the earphones support AAC then it uses that instead of SBC HD, it's that the intended behavior? I was under the idea that AAC wasn't recommended since it could use FDK AAC or the SoC encoder which could be worse

That's an intended behavior. The patchset does not touch codec preference.
11th July 2019, 01:09 PM |#198  
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Quote:
Originally Posted by ValdikSS

https://issuetracker.google.com/issues/136342164 ← add stars here

done!
would love to see this in AOSP
12th July 2019, 08:58 AM |#199  
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How should I patch the ROM I'm using myself? I use Pixel Experience and it doesn't have these. My laptop is not enough to build a ROM, thanks.

Sent from my Xiaomi Redmi Note 5 using XDA Labs
12th July 2019, 05:14 PM |#200  
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Quote:
Originally Posted by VincentJoshuaET

How should I patch the ROM I'm using myself? I use Pixel Experience and it doesn't have these. My laptop is not enough to build a ROM, thanks.

Sent from my Xiaomi Redmi Note 5 using XDA Labs

You'll need to apply the patch to the source code and build full firmware.
13th July 2019, 01:24 AM |#201  
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Quote:
Originally Posted by ValdikSS

You'll need to apply the patch to the source code and build full firmware.

I suppose an Xposed module is possible?

Sent from my Xiaomi Redmi Note 5 using XDA Labs
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