Tested with SNR 8 dB file  x.txt. Got the following

QWEHROWNOOUMP*VTH*MZCOT123H67EQUICSRJWNOTKMP0<84>TH*AZROT123H/7*<A0>UIYUROWNO8UMPMVTH*AZ*O0113<88>567*9QUICRROFO

The actual text is QUICK BROWN FOX JUMPED OVER THE LAZY FOX 0123456789