Opened mp3 savedpreviously and  it is repeating in short cycles like maybe a everb or echo.  I need to find  out how to get rid of the effect or neutralize it so i can hear the sound like it wasoriginally.  Is that possible?

I am using magix music editor 3.1 on windows 8.1 os.  I believe i must have hit some effect when exporting or saving the file earlier.