I am having the same issue on Android 5. With Android 4.4.2 everything is working fine. What is your version of Android?

I am at 5.0.2.

Well I need to record sound and not generate samples so I didn't try to fix this issue. I'm not getting much success on recording though. Are you able to record via microphone on Android 5? (if you tried)

So it possibly is an Android 5 issue. Hopefully someone with a deeper insight can check this out.

Never tried to record audio, so I cannot comment on this.

Thanks for your input @Bambooeater
Lets hope someone can check this out.

Hi! I was wondering if somebody found a solution for this issue, I'm having the same issue on android 6 marshmallow / nexus 5.
It's so sad not being able to use this module for the manage the audio streams in kivy :(

I could record without problems, I didn't try anymore generating samples because I didn't need that for my project. I don't know if anyone managed to solve this problem.

Thank you for your answer Andre! I'm actually working on a project that need both input and output audio streams in Android and I was kind of hoping to use this module for that.
I'm pretty new in app development but for my understanding the only option at this point is to figure out a way of how to directly drive pyjnius to get these audio streams in my kivy app instead

Is this still an issue? Android 5 is pretty dated, and I am hoping we can close.