'SAMIParser.as' import in your project

// initialize SAMIParser
private var sp:SAMIParser = new SAMIParser();
// OR
private var sp:SAMIParser = new SAMIParser("SAMI Content");

// load SAMI for URL
sp.SAMILoader([URL:URLRequest]);

// set SAMI for content
sp.SetSAMI([Source:String]);

// get sync content; return to HTML format
sp.GetSYNC_Content([Index:int]); 

// get sync time
sp.GetSYNC_Time([Index:int]);

// get sync length
sp.GetSYNC_Length();

var myStr:String = sp.GetSYNC_Content(0);
myRichText.textFlow = TextConverter.importToFlow(myStr, TextConverter.TEXT_FIELD_HTML_FORMAT);