Aha, sice ho detekuje

real debug: object MDPR size=151 version=0
real debug: - id=0x1
real debug: - max bitrate=8444 avg bitrate=8444
real debug: - max packet size=1500 avg packet size=1500
real debug: - start time=0
real debug: - preroll=1728
real debug: - duration=0
real debug: - name=`Audio Stream'
real debug: - mime=`audio/x-pn-realaudio'
real debug: - specific data len=73
real debug: - audio version=4
real debug: - audio codec=sipr channels=1 rate=8000Hz
real debug: object DATA size=18 version=0
real debug: - packets count=0 next=0
main debug: using demux module "real"