My anbox cannot make any SOUND!

[FortiterInRe]

Please describe your problem:
I just found my anbox cannot make any sound.Moreover, I could not use the default Music app, because it crashed. I have also tried use the Web and the Clock.However, they were both silent.
But everything except the sound is fine.
The anbox can use the arm apps. I followed this article: https://github.com/geeks-r-us/anbox-playstore-installer/blob/master/install-playstore.sh

What were you expecting?:
I wonder how to fix this bug.

Additional info:
system-info.log
system.log
kernel.log
container-manager.log
container.log

[Fuseteam]

please see #904

[FortiterInRe]

please see #904
Thanks!I'm sorry that I haven't seen the issue.The sound has been fixed by your solution. But the Music app still crashed. It crashed quickly, and then, my anbox would crash too. There seemed not to be any issues mentioned the same bug like mine.
I am still thankful for the solution at last! :)

[Fuseteam]

the music app crashing seems like a different issue, feel free to update the title to describe the issue

sadly i don't know why the music app fails

[FortiterInRe]

OK, though the sound is not robust enough (In fact, I cannot use it today), I will try some other ways to fix it. Thanks and I think this issue may be able to closed.