Normal, I try force stopping and clearing cathe but don't get your hopes up, especially since the crashes cause a reboot. You could also try lowing the volume a bit and see it that helps. I agree with @mikedt
There is a reference in the Play Store description from its developer that this should considered to be 'experimental software' that isn't supported by all devices.
"By installing this application you agree that you will not hold its developer responsible for any damage to hardware or hearing, and you are using it at your own risk. Consider this to be experimental software.
Not all devices support this software. Try it at your own risk and see if yours works."