If you've mixed songs in the past, you more than likely can use that same software for audio mastering. As long as you can add effects to the stereo/main out bus, you're good to go.
Note - This section is basically a tip for those of you working with clients or if you plan on submitting your mixes to a mastering engineer.
I started my career using the old analog stuff, since that was the only option. I incorporated digital software plugins as soon as they became available, but it took many years before computers were fast enough to run them in realtime. And also before they started making very high quality plugins.
What's the best music gear for your home recording studio in 2017?
Here are the series of audio mastering software processors I've used on the over 30,000 songs I've mastered since 1999. In this video, I use mostly izotope ozone plugins because it's easier to explain using them. In real-life, I do mix in a few hardware pieces, and a waves plugin.
Can I master a song that's already been mastered? Yes! Every month I master songs that have already been mastered.
Correctly setting your mixing levels before mastering is essential for great mastering results. Having the best DB levels for mixing is critical. Here's how to properly do it!
How to set mixing levels for each instrument is a question I see all over the Internet. I'm going to explain exactly how to set mixing levels in this article.
To create a mix for mastering with proper headroom is pretty simple.
In this article, I'll show you how to prepare your songs for mixing.