:: Any suggestions on how to mix audio?

The ability to mix audio is no doubt a skill and art form. Developing it takes time, and requires many 'failures', experiments, and learning experiences. Realizing that knowing techniques and tricks doesn't make mixing that much easier, but knowing how you want things to sound is more important. Keep in mind that there is a big difference between knowing something and actually getting it. In my opinion, to truly succeed and excel in mixing audio is that you must have a desire and a passion to absorb and accept constructive criticism, suggested techniques from others and building upon it.