I had frequently saved my recordings on my Spider Jam as wav files so that I can play them back on my PC. Recently, however, saving recordings as wav files on my SJ sound hollow or muffled with highs missing on playback. There are rare times when a saved wav file sounds great, then the next time I save a recording as wav it sounds bad again. Recordings saved as jam files always sound fine. I've tried different SD cards and a factory reset but the problem remains. Any help would be appreciated!