mac sounds fix 1.9.3 (#455)

* edit katrain/gui/sound.py, edit katrain/core/constants.py

* edit katrain/gui/sound.py

Co-authored-by: Sander Land <sander.land@futurefacts.nl>

katrain/gui/sound.py

@@ -6,8 +6,7 @@ from kivy.utils import platform
 cached_sounds = {}
 
 # prefer ffpyplayer on linux, then others, avoid gst and avoid or ffpyplayer on windows
-ranking = [("ffpy", 98 if platform == "win" else -2), ("sdl", -1), ("gst", 99), ("", 0)]
-
+ranking = [("ffpy", 98 if platform in ["win",'macosx'] else -2), ("sdl", -1), ("gst", 99), ("", 0)]
 try:
     SoundLoader._classes.sort(key=lambda cls: [v for k, v in ranking if k in cls.__name__.lower()][0])
 except Exception as e: