With requirements = hostpython2,kivy or requirements = python2,kivy, import audioop fails with:
06-17 16:57:54.328 15569 15649 I python : Traceback (most recent call last):
06-17 16:57:54.328 15569 15649 I python : File ".../.buildozer/android/app/main.py", line 4, in <module>
06-17 16:57:54.328 15569 15649 I python : ImportError: No module named audioop