Fixed: Miui V7: Bluetooth A2dp Bitpool Too Low: Poor Bluetooth Audio Quality


Ludovic815

Members
Nov 29, 2010
60
20
Hello, (my phone is a xiaomi MI2S running MIUI 5.8.20, but this bug may concern also other phones)
When listening music with my bluetooth headset or with the xiaomi bluetooth speaker the quality is very poor.
The problem seems to be related to a wrong bitpool in the a2dp library in /system/lib/hw/audio.a2dp.default.so.
In MIUI V6 I was able to use a workaround: replace audio.a2dp.default.so and bluetooth.default.so with the libraries from a non-MIUI rom (I used mokee os for MI2/S) but now, when I use these files, com.android.bluetooth force closes.

The logcat is available here: http://ludo.lehmann.online.fr/Log.txt
 

Selz77

Members
Aug 26, 2015
1
15
Here the same problem, my phone is a mi3 and the bluetooth audio cuts every certainly time, and the quality is very poor too. Please let me know if you found a solution.
 
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Ulver

Members
Mar 24, 2012
260
52
I've actually noticed that Bluetooth audio quality is way better. I forget which update in MIUI6 that it improved.

Sent from my MI 4W using Tapatalk
 

illmouse

Members
Apr 18, 2012
24
15
Same here. MIUI 7 5.8.20 MI2S. Sound quiality is awful for bluetooth. It was ok on 5.2.13_v6-4.4
 
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