DarkAudacity is an extremely popular free sound editing software with a modernized theme and is still the favorite free audio editing program today with few minor tweaks. The sound engine behind DarkAudacity is basically the same sound engine used in many other popular sound editing programs. However, since they are Open Source and free for anyone to use, anyone can edit and customize the source code too. You can add new sounds, adjust the volume levels, remove sounds or simply combine many different sounds into one. DarkAUDIENCE's interface is simple and easy to learn which makes this an ideal program for beginners to start out with.
Dark Auditor is another free audio editing and mixing application with a modernized design. Like Dark AUDacity, it is available as a free download. This version has limited features however, and that limits its usefulness to those needing only basic editing abilities. It also does not have a built in repeat mode. Like Dark Auditor, it is based on the open source code of the same application but was redesigned to be more user friendly. There is also an option to upgrade to the premium version which costs $99 but comes with added value like a premium tech support forum and private tech support for problems that you might encounter while using the program.
These two free audio editors are both great sounding and professional sounding. However, they differ because they have different purposes. While both are excellent software applications, you should consider how much you plan to use your audio editor software before deciding on which one to go for. Both are good quality applications with similar capabilities but if you want more advanced features, you will definitely need to spend more money on one.