For a little while I have had a few mp3 songs that do not sound right. It may be one voice sounds like the person was standing back from the mic while another sounds fine. It's the secondary voice that has that problem The same can happen with one musical instrument while all others are OK. Most songs have no issue but a few do. The randomness of it has me baffled, as well as it only affecting a few tracks. I have tried to find a solution but to no avail. If anyone has heard of this, I'd appreciate any help. Thank you.