Sunday, 24 July 2016

increase BT Headset mic volume for outgoing call possible?



Hello,
i have the Xperia Z3compact for over One Year.

I'm on the road every day, so I use the Sennheiser Presence Bluetooth Headset for any call.

My only Problem is when calling; other's hear me to low! They have to increase their speakers to maximum and had problem to hear me. The Sound Quality is very good but they here me too low.

I have tested every Rom from (original) Android 4.4.4 over 5 Lollipop Versions (stock and rooted Rom's) and now on the newest Sony Android 6.0.1
-all with same bad results :(

When I'm calling with the Phone (without Headset) all here me perfect and loud.
But not with the BT Headset!

Then i have tested Cyanogenmod Cm12.x and wow the Problem with Bluetooth headset is completely gone :)
All here me loud and perfect!

But on CM the camera Quality is gone and I have the fisheye problem.

Now the big question:
why is the BT Headset outgoing mic volume louder than on any other Rom's?

And is there any option to increase the Bluetooth outgoing mic volume with a rooted (stock) Rom?

I know about the mixer_paths.xml file.. but no one ever, write here; How to tune the Bluetooth outgoing Mic volume!?!

All only tune the z3c inside mic's and speakers..

CM Mod is nice but buggy there is no stable Version and the cam quality is crap.

So please, if any one have a idea what I can try? to increase Bluetooth Mic Volume!
Help me!

Information:
The Problem is not my Hardware...
I have tested the Bluetooth Headset with other Smartphone without problems!
I have tested the Headset with another new Z3compact -same result other here me to low on BT Headset Calls.

So there is no Hardware defect.

PS: Sorry for my bad English.

Hope someone can help me
Alex from Germany



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