X_Type_isArray( sourceList ) ? X_Array_copy( sourceList ) : [ sourceList ],\r
opt_option || {} );\r
this[ 'listenOnce' ]( [ X_EVENT_BACKEND_READY, X_EVENT_BACKEND_NONE, X_EVENT_KILL_INSTANCE ], X_Audio_handleEvent );\r
X_Type_isArray( sourceList ) ? X_Array_copy( sourceList ) : [ sourceList ],\r
opt_option || {} );\r
this[ 'listenOnce' ]( [ X_EVENT_BACKEND_READY, X_EVENT_BACKEND_NONE, X_EVENT_KILL_INSTANCE ], X_Audio_handleEvent );\r