At least the decoded audio signal is analyzed to detect whether {HEAD ~ the decoded audio frame} includes a distortion that will be audible during playback thereof, {TAIL ~ the distortion} being due to bit errors in the encoded bit stream 
At least the decoded audio signal is analyzed to detect whether { HEAD ~ the decoded audio frame } includes a distortion that will be audible during playback thereof , { TAIL ~ the distortion } being due to bit errors in the encoded bit stream
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH