'Difference between audio frameworks on linphone audio settings

I am looking at the linphone audio settings and I see that there're two audio frameworks available, which is the difference between using AAaudio framework or OpenSL?

The other item that appears in the list is Android SND and says that it is deprecated, but with this option is how the microphone behaves better in calls, why?

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With this I would like to know if it influences the fact of using one framework or another since I am having echo and microphone sensitivity problems in the calls I make with my device (Zebra TC21 with android 10) using linphone.

Help :(

Thanks

androidaudiolinphoneopensl


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