Adobe Soundbooth:
Adobe SB was made to be able to multi-track audio projects and are able to dynamic link videos to the Soundbooth from After Effects and Premiere. This was made to save users time.
Adobe Soundbooth however was discontinued and instead, was reformed and merged with the now Adobe Audition. Featured plugins such as noise reduction and FFT Equalization. This program also allowed surround sound audio mixing and unlimited simultaneous tracks (With a maximum given by the program). Before Adobe Soundbooth became Audition, CS5.5 removed MIDI support and is not a feature of the new Audition. This may limit people who uses instruments through MIDI to record.
The program itself is quite basic with a few general advanced plugins to help with audio editing. It's key feature is most likely the integrated functions with Premier and After Effects with being able to add a video to the audio track. This means that Soundbooth/Audition has innate video editing functions.
Cubase:
Able to use a wide variety of virtual sound emulators. It also features several built-in plugins that allow to record sound and change it's effects i.e. add echo's, add more reverb, reverse sound. It allows usage of the same music file multiple times under a different name. This can then be used to compare to a new mix or to create different mixes.
A key feature of Cubase is the re-record. It allows the user to record from the same settings as before without losing the positioning of where the recording originally started. They can also use MIDI to import music directly onto scores from external instruments. The program has a built-in plugin that allows the editing of the MIDI directly on Cubase after recording it.
Finally, another main feature is that Cubase allows artists to record audio over the internet. This way, people are able to collaborate without having to be physically next to each other. The person editing can live edit the MIDI that is being sent over the internet.
Cubase seems to more advanced in a way that the program has more audio editing based functions. It also has the ability to create digital based audio through it's several plugins and possibly user added plugins.
