I was editing audio in a multitrack session when Audition crashed. After I reopened the program, the audio files all played without sound - not just in Audition, in other programs too. I can still see their waveforms in the multitrack session, but when playing, the level at the bottom shows nothing. Other programs tell me the files are completely mute. Is there any way to recover the audio since Audition still remembers the waveforms?