Audio Route Description Dictionary Keys Keys for the Kaudiosessionproperty_audioroutedescription dictionary. TopicsConstantskAudioSession_AudioRouteKey_InputskAudioSession_AudioRouteKey_Outputs See AlsoAudio RoutesAudio Route Change ReasonsAudio Route Type KeyAudio Input RoutesAudio Output RoutesAudio Route Change Dictionary KeysAlternative Audio Route Change Reason Dictionary Key