A truly professional audio editor, PreSonus Studio One deserves a place in the list, at least for the set of professional-level features one can have from the tool. PreSonus Studio One is commonly used for several kinds of purposes such as recording and mastering. The Interface may seem tough for a beginner, but when you have got the taste of digital audio production, you will find it damn productive, we bet. Despite this, it offers drag-and-drop and other features for management of media and effects, which is a big deal, indeed. It is to be noted that PreSonus Studio has three different versions and that availability of features varies according to the version you choose. If you want 64-bit performance, for instance, you have to choose PreSonus Studio One Professional version. In short, it is a good-to-go professional solution for musicians.
Price: Free & Feature-limited version available. Artist version for around $85 Availability: Microsoft Windows and Mac OS X.