Oboe is a C++ wrapper for the AAudio and OpenSL ES audio APIs on Android.
A program written using Oboe can run on multiple versions of Android. On O or later versions, Oboe can use Audio or OpenSL ES. On N or earlier versions, Oboe will only use OpenSL ES.
This is not an official Google product.
Hello Oboe - simple tone generator
Native MIDI Synth - A MIDI synthesizer that renders in C++ and calls Oboe. It uses the Android MIDI API in Java.
Include this as a sub-module in your Git project.