I think there is a maximum time for playing the chime.
There is, but as I show in my video, you can make longer sounds...
Jump to the 0:49 second timestamp to head the short sounds, and keep listening to hear the long sounds. At the very end of each, you still get that little "pop" and I honestly do not know how to get rid of that. But clearly, making the sounds LONGER does not eliminate it.
I tried VERY HARD to get rid of it though. I tried fade-to-LO and fade-to-HI, thinking that if the output is normally HI when no sound is being made, that should eliminate the pop. But no matter how I faded the sounds at the end, the pop remained.