Description
The basic issue is that SoundsJS automatically creates a Media element on each play(), but never releases it. On Android these Media elements take up very limited resources (on the order of 10s). (As the Media.release() documentation puts it: "This is particularly important for Android, since there are a finite amount of OpenCore instances for media playback.")
The result is that after a certain number of calls to Sound.play() , the sounds stop playing and the Android log starts showing errors (e.g. AudioFlinger: no more track names available).
The most obvious fix would be to call release() in CordovaAudioSoundInstance._handleCleanUp(). (Indeed, a comment there already considers it.) That eliminates the problem, though of course you would have to add more logic to allow reusing the sound instance.